Energy-efficient solutions
for LED lighting
October 2009
www.st.com/lighting
Contents
ST’s commitment to energy saving
4
ST’s LED driver solutions
6
LED application segments
8
LED array drivers
STP04CM05
STP08xP05
STP16x
STP24DP05
9
9
10
11
12
Boost converters
PM660x
LED770x
ST8R00
L6920D/DB
STCF05
13
13
14
15
16
17
Buck converters
STCSx
L6902D
L597x
L598x
L6925/26/28
ST1S10
18
18
19
20
22
24
25
Buck-boost converters
STCF04
STCF06
STBB1
26
26
27
28
Offline solutions
VIPer
L6562A/AT
L6599A/AT
L6565
30
30
32
34
35
Microcontrollers
STM8S
STM32
36
36
39
Product selection guide
LED array drivers
Boost converters
Buck converters
Buck-boost converters
VIPer
Power factor correctors
Resonant and quasi-resonant controllers
Power MOSFETs
43
43
43
43
44
44
45
45
45
Demonstration boards
47
ST’s commitment to energy saving
While technological progress has improved the quality of our lives, it has significantly increased global energy
consumption, from 7 billion toe (tonne of oil equivalent) in 1980 to 12 billion toe in 2007*. With increasing levels
of greenhouse gases in the atmosphere and the dwindling of traditional energy resources, a more energy-efficient
approach is required.
STMicroelectronics is committed to developing products and technologies that enable efficient power supply, from
generation to consumption, across all microelectronics applications. STMicroelectronics follows two complementary
approaches - reduction of energy consumption in the chip itself, and new ways to further improve energy efficiency in
the end applications, such as lighting.
Lighting represents 15% of global electrical energy consumption, mainly in buildings and exterior applications. More
efficient lighting thus offers potentially large savings in energy and is closely related to the performances of its control
electronics.
A leading provider of complete lighting solutions with smart management and high protection levels, STMicroelectronics
supports energy-efficient electronic ballasts with a large portfolio of products (power discrete semiconductors,
application-specific ICs and microcontrollers). These ICs combine all the functions required to generate more light
from less energy, while ensuring longer lifetime for the lamps and full compliance with safety and power consumption
regulations.
Light emitting diodes (LEDs), thanks to their numerous advantages, are set to become a new standard source of
illumination for the 21st century.
Source iSuppli 2007
$ 14.000
$ 12.000
Milions of US dollars
$ 10.000
$ 8.000
$ 6.000
$ 4.000
$ 2.000
$0
2001
2002
2003
2004
Standard LEDs
*Based on EIA: International Energy Outlook 2008 report #:DOE/EIA-0484 (2008)
4
2005
2006
2007
High brightness (HB) LEDs
2008
2009
2010
2011
Ultra high brightness (UHB) LEDs
2012
LEDs are essentially PN junction semiconductor diodes that emit a monochromatic (single color) light when operated
in a forward biased direction. The basic structure of a LED consists of the die or light emitting semiconductor material,
a lead frame where the die is actually placed, and the encapsulation epoxy which surrounds and protects the die. The
first commercially usable LEDs were developed in the 1960’s, but they have only recently reached significant levels of
luminous efficiency.
Evolution of lighting
200
Luminous efficiency (lm/W)
150
Electrical discharge lamps
High-pressure
Sodium
Light emitting diodes
Metal halide
100
Best LED
Fluorescent
Mercury vapor
50
Shaped reflectors
White LEDs
Tungsten-halogen
Incandescents
Conventional incandescent
0
1920
1940
1960
1980
2000
2020
Year
LEDs offer longer lifetimes (up to 100,000 hours), a wide color spectrum, small size and greater design flexibility.
Moreover, LEDs increase safety through their low-voltage power supplies, and enhance user comfort as they turn on
instantly and operate silently. LEDs are environment friendly because they have no gas inside, no UV and little infrared
emission.
Most importantly, LEDs can save a lot of energy compared with standard lighting sources. It has been estimated that
the replacement of 5% of all incandescent bulbs in the world (12.5 billion/year) with LED-based lighting would allow the
saving of 60 TWh of electricity equivalent to 23.4 Gtonne of CO2 a year.
STMicroelectronics offers a large portfolio of compact and efficient LED driver solutions, fully addressing the lighting
market and featuring all the functions needed to ensure greater power saving.
5
ST’s LED driver solutions
Low input voltage solutions: buck, boost, buck-boost and LED array drivers
Input voltage [Vdc]
55 V
L497x
STCSxx/A
36 V
L6902D
LED770x
L597xD/AD
PM6600
18 V
L598x/A
ST1S10
6V
ST8R00
STPIC6x595
STP08xP05
STCF05
STP24DP05
STCF0x
STP04CM05
L6925D/6/8
STP16x
L6920D/DB
100
Buck converter
6
STBB1
150
200
350
Boost converter
500
700
Buck-boost converter
1000
LED [mA]
LED array drivers
Offline LED drivers: 85 to 265 Vac input voltage
Output power [W]
L6562A/AT/3H (PFC-boost converter)
+ L6562A/AT (modified buck converter)
L6562A/AT/3H (PFC-boost converter)
+ L6599A/AT (resonant controller)
+ DC-DC converter for each LED string
100
L6562A/AT/3H (PFC-boost converter)
+ L6565 (quasi-resonant controller)
+ DC-DC converter for each LED string
L6562A/AT/3H (HPF) + DC-DC converter for each LED string
25
L6562A/AT (modified buck converter)
VIPer53-E (buck converter)
VIPer22A-E/25/27/53-E (flyback converter) + TSM10xx
10
VIPerX2A-E//X7 (flyback converter) + TSM10xx
VIPer12A-E/15/17 (flyback converter) + TSM10xx
VIPerX2A-E/16 (buck converter)
Non-isolated
Isolated
7
Displays and signs
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Full color video
Monochrome message boards
Variable message signs
Transportation
Information
STP04CM05, STP08xP05, STP16x, STP24DP05
General illumination
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Residential lighting
Commercial lighting
Architectural lighting
Street lighting
Large area illumination
Emergency lighting
VIPerx2, VIPerx6, VIPerx7, L6562A/AT/3H, L6599A/AT, STP04CM05, ST1S10,
STCSxx/A, L597xA/AD, L598x/A, L497x, L6902D
LED
application
segments
Backlighting
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Notebooks
Netbooks
LCDs
PDAs
Cell phones
Digital cameras
General backlighting
STCF0x, LED770x, PM660x
Signal lighting
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Road traffic signals
Aviation
Rail
Navigation
Emergency/police signals
STP08DP05, STP16x, STP24DP05
Automotive and consumer
QQ
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Interior lighting
Exterior lighting
Consumer electronics
Televisions
VCR/DVD/stereo/audio/video devices
Household appliances
Toys/games
Security equipment
STP04CM05, STP08xP05, STP16x, STPIC6x595, STCSxx/A, LED770x, L597xD/AD,
L598x/A, L497x, L6902D, A597x
8
LED array drivers
STP04CM05
The STP04CM05 is a high-power LED driver and 4-bit shift register designed for
power LED applications. The STP04CM05 contains a 4-bit serial in, parallel out shift
register that feeds a 4-bit D-type storage register. In the output stage, four regulated
current sources are designed to provide 80 to 400 mA constant current to drive the
high powered LEDs.
The STP04CM05 family guarantees 20 V output driving capability, allowing users to
connect more LEDs in series. The high clock frequency, 30 MHz, also satisfies the
system requirements which include high-volume data transmission. The STP04CM05
is well suited for very high brightness displays and special lighting applications. The
STP04CM05 is offered in DIP-14, SO-14 and TSSOP16 exposed pad packages.
Key features
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DIP-14
SO-14
TSSOP-16
(Exposed pad)
Key benefits
4 constant-current output channels
Adjustable output current (80 to 400 mA)
using a single external resistor
20 V of output driving capability
Serial data in/parallel data out
Output enable pin for dimming (PWM)
Maximum clock frequency: 30 MHz
ESD protection: 2.5 kV HBM, 200 V MM
QQ
QQ
QQ
Thermal shutdown, output off when junction
temperature exceeds limit
Well suited for very high-brightness displays and
special lighting applications
Uniform and accurate current control in a single-chip
solution
Application example
Sales code
Board
Description
STEVAL-ILL009V3
OSTAR projection module
STEVAL-ILL009V4
OSRAM Dragon LED module
STEVAL-ILL009V5
New RGB LED control board
Technical documents
AN2531: Generating multicolor light
using RGB LEDs
9
STP08xP05
The STP08xP05 series are monolithic, low-voltage, low-current, low-power LED
drivers and 8-bit shift registers designed for LED panel displays. The STP08xP05
contains an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage
register. In the output stage, eight regulated current sources provide 5 to 100 mA
constant current to drive the LEDs.
Users can adjust LED brightness using an external resistor to control the output current
or using a dedicated digital pin.
The STP08DP05 contains a built-in error-detection feature. This additional function is
achieved without any increase in the pin number and any change in the pin functions
compared to a standard device without error detection.
Key features
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DIP-16
TSSOP-16
SO-16
TSSOP-16
(Exposed pad)
Key benefits
Low-voltage power supply: down to 3 V
8 constant-current output channels
Adjustable output current through external resistor
Serial data in/parallel data out
3.3 V microcontroller driveable
Output current: 5 to 100 mA
Maximum clock frequency: 30 MHz
ESD protection: 2.5 kV HBM, 200 V MM
Extended thermal range and protection with wide
package portfolio
QQ
QQ
QQ
QQ
Uniform and accurate current control in a single-chip
solution
Common footprint design
Thermal shutdown, output off when junction
temperature exceeds limit
Available and combinable features such as:
QQ high precision
QQ full error detection
Application example
Sales code
10
Board
Description
STEVAL-ILL002V3
High-brightness LED with diagnostics (40 LEDs)
STEVAL-ILL002V4
High-brightness LED with diagnostics (40 LEDs)
Technical documents
UM0181: Detection LED matrix
evaluation kit
AN2478: STP08DP05, STP16DP05
Normal mode and error detection features
STP16x
The STP16x series are monolithic, low-voltage, low-current, low-power LED drivers
and 16-bit shift registers designed for LED panel displays. The STP16x contains a 16bit serial-in, parallel-out shift register that feeds a 16-bit D-type storage register. In the
output stage, sixteen regulated current sources provide from 3 mA to 100 mA constant
current to drive the LEDs.
QSOP24
TSSOP24
Key features
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SO-24
TSSOP24
(Exposed pad)
Key benefits
Low-voltage power supply: down to 3 V
16 constant-current output channels
Adjustable output current through external resistor
Serial data in/parallel data out
3.3 V microcontroller driveable
Output current: 5 to 100 mA for STP16xP05 series
Output current: 3 to 40 mA for STP16xPP05 series
Maximum clock frequency: 30 MHz
ESD protection: 2.5 kV HBM, 200 V MM
Extended thermal range and protection with wide
package portfolio
QQ
QQ
QQ
QQ
Thermal shutdown, output off when junction
temperature exceeds limit
Uniform and accurate current control in a single-chip
solution
Common footprint design
Available and combinable features such as:
QQ high precision
QQ full error detection via SPI
QQ auto power saving
Application example
Sales code
STEVAL-ILL003V2
Board
Description
High-brightness LED driver without diagnostics (32 LEDs) based on
STP16CP05
Technical documents
AN2141: LED array reference
design board
11
STP24DP05
The STP24DP05 is a monolithic, low-voltage, low-current LED driver and 24-bit shift
register designed for LED panel displays. The device contains an 8 x 3-bit serial-in,
parallel-out shift register that feeds an 8 x 3-bit D-type storage register. In the output
stage, 24 regulated current sources provide 5 to 80 mA constant current to drive the
LEDs. The 8 x 3 shift register data flow sequence can be managed with two dedicated
pins.
Users can adjust the output current for each 8-channel group using three external
resistors, controlling in this way the light intensity of the LEDs.
The STP24DP05 guarantees a 20 V output driving capability, allowing users to connect
more LEDs in series.
The high clock frequency, 25 MHz, makes the device suitable for high data rate
transmission. The 3.3 V voltage supply is useful for applications that interface any
microcontroller from 3.3 V.
Key features
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TQFP48-EP
Key benefits
Low-voltage power supply: down to 3 V
3 x 8 constant-current output channels
Adjustable output current through external resistor
Serial data in/parallel data out
3.3 V microcontroller driveable
Output current: 5 to 80 mA
Maximum clock frequency: 25 MHz
ESD protection: 2.5 kV HBM, 200 V MM
QQ
QQ
QQ
QQ
Thermal shutdown, output off when junction
temperature exceeds limit
Uniform and accurate current control in a single-chip
solution
Full error detection via SPI and flag pin
Available and combinable features such as:
QQ high precision
QQ full error detection
QQ auto power saving
Application example
Sales code
Board
Description
Technical documents
AN2841: LED dimming implemented on
STM32 microcontroller
STEVAL-ILL015V1
High-brightness RGB LED array with LED error detection
UM0574: LED dimmer demonstration
board based on the STP24DP05 and
STM32
UM0588: Multilayer C library for LED
dimming used on systems with SPI and
DMA capabilities
12
Boost converters
PM660x
The PM6600 consists of a high-efficiency monolithic boost converter and six controlled
current generators (rows), specifically designed to supply LED arrays used in mobile
PC LCD-panel backlighting. The device can manage a nominal output voltage up to
36 V (i.e. 10 white LEDs per row). The generators can be externally programmed to
sink up to 32 mA and they can be dimmed via a PWM signal (1% dimming duty cycle
at 20 kHz can be managed). The device detects and manages open and shorted LED
faults and leaves unused rows floating. Basic protection (output overvoltage, internal
MOSFET overcurrent and thermal shutdown) is provided.
Key benefits
Key features
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VFQFPN-24
6/8 rows with up to 10 LEDs each (60 or 80 LEDs)
Monolithic solution up to 36 V output voltage
Up to 1 MHz FSW and high efficiency at light load
Programmable LED current up to 32 mA @ highest
precision/matching accuracy
Supports analog and digital dimming
SMbus/DPST enabled (PM6602 only)
QQ
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Supports wide range of screen sizes from small
netbooks to wide-screen notebooks with one device
High integration, so few and small (cheap) external
components
Outstanding efficiency for longer battery life and
energy savingenergy saving
Application example
Sales code
STEVAL-ISA056V1
Board
Description
6-row, 30 mA LED driver with boost converter for notebook PC LCD-panel backlighting
13
LED770x
The LED770x consists of a high-efficiency monolithic boost converter and six
controlled-current generators (rows) specifically designed to supply LED arrays used in
the backlighting of LCD panels. The device can manage an output voltage up to 36 V
(i.e. 10 white LEDs per row).
The generators can be externally programmed to sink up to 85 mA (LED7707) and can
be dimmed via a PWM signal. The device detects and manages open and shorted LED
faults and leaves unused rows floating. Basic protection (output overvoltage, internal
MOSFET overcurrent and thermal shutdown) is provided.
VFQFPN-24 4x4
Key features
Boost section
QQ Input voltage range: 4.5 V to 36 V
QQ Internal power MOSFET
QQ Up to 93% efficiency
QQ Up to 36 V output voltage
QQ Switching frequency: 200 kHz to 1 MHz
QQ Programmable soft-start, OVP and OCP
QQ External sync for multi-device applications
Backlight driver section
QQ Six rows capable of driving multiple LEDs in series
QQ Up to 85 mA (LED7707) and 30 mA (LED7706)
programmable output-current per row
QQ Rows in parallel to drive up to 510 mA LEDs (LED7707)
QQ ±1.5% current matching between rows
QQ Shorted and open LED fault detection
QQ PWM dimming (500 ns minimum dimming on-time
LED7706)
Key benefits
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QQ
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QQ
Monolithic and flexible solution
High efficiency
Superior dimming capability
Complete and flexible fault management
Application example
Sales code
14
Board
Description
Technical documents
STEVAL-ILL020V1
LCD panel backlight demoboard based on LED7706
(6-row - 30 mA LED driver with boost converter)
AN2809: 6-row, 30-mA LED driver with
boost converter for the backlight of LCD
panels
STEVAL-ILL021V1
LCD panel backlight demoboard based on LED7707
(6-row - 85 mA LED driver with boost converter)
AN2810: 6-row 85 mA LED driver
with boost converter for LCD panel
backlighting
ST8R00
The ST8R00 family of synchronous step-up DC-DC converters with current output cutoff function provide up to 1 A over an input voltage range of 4 V to 6 V and an output
voltage range of 6 V to 12 V.
The high switching frequency (1.2 MHz) allows the use of tiny surface-mount
components.
In addition to the resistor divider to set the output voltage value, only an inductor and
two capacitors are required. A low output ripple is guaranteed by the current-mode
PWM topology and by the use of low ESR surface-mounted ceramic capacitors.
The device is available in two versions: burst mode (ST8R00) and continuous mode
(ST8R00W) operation.
Key benefits
Key features
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DNF8 4x4 mm
Very low supply current: 500 μA (typ)
Output voltage: adjustable from 6 V to 12 V
Output voltage accuracy: ±2%
Output current: up to 1 A
Very small DFN8 (4x4 mm) package
QQ
QQ
Efficiency up to 90%
Few external components
Application example
Sales code
steval-isa48v2
Board
Description
1 A/adjustable Vout PWM synchronous step-up DC-DC converter
based on ST8R00
Technical documents
AN2627: ST8R00 synchronous boost
converter with output current cut-off
function
15
L6920D/DB
The L6920DB is a high-efficiency monolithic step-up switching converter IC specifically
designed for battery-powered applications. The MSOP8 package minimizes PCB
space. It requires only three external components to convert the battery voltage to the
selected output voltage. The minimum output voltage is 1.8 V, suitable to supply the
most advanced ASICs and microprocessors.
High switching frequency allows for a low-profile, small-sized inductor and output
capacitor to be used.
Reference voltage, low-battery detection and shutdown are provided together with
overcurrent protection.
Key features
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MSOP8
Key benefits
0.8 V start-up input voltage
Input voltage: up to 5.5 V
Internal synchronous rectifier
Adjustable output voltage: from 1.8 V (L6920DB)
Low battery voltage detection
750 mA input current limit (L6920DB) (1 A for L6920D)
QQ
QQ
Monolithic and flexible solution
High efficiency
Application example
Sales code
EVAL6920DB1
STEVAL-ILL008V1
16
Board
Description
Technical documents
L6920DB synchronous rectification step-up converter evaluation
board
AN2206: Designing with L6920DB, high
efficiency syncronous rectifier step-up
converter
LED flashlight demo board based on the L6920D
Previous sales code: PSAL05-13
AN1941: Low-voltage LED driver using
L6920D, L4971 and L6902D
STCF05
The STCF05 is a high-fficiency power supply solution to drive multiple flash LEDs in
camera phones, PDAs and other hand-held devices.
The synchronous boost topology with output current control guarantees the proper
LED current over all possible conditions of battery level and LED forward voltage.
All the functions of the device are controlled through the I2C bus that allows to reduce
logic pins on the package and to save PCB traces on the board.
Key features
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TFBGA25
(3 x 3 mm)
Key benefits
1.8 MHz fixed frequency PWM control
Efficiency up to 92%
Full I2C control
LED overtemperature detection and protection with
external NTC resistor
Open and shorted LED failure detection and
protection
Chip over-temperature detection and protection
Less than 1 μA standby current
QQ
Few external components required
Application example
Sales code
STEVAL-TLL007V1
Board
Description
Power flash demo board based on STCF05 (includes motherboard
based on uPSD)
Technical documents
AN2827: Driver for double flash LED with
I2C interface
17
Buck converters
STCSx
The STCSx family is a BiCMOS constant-current source designed to provide a precise
constant current starting from a varying input voltage source. It is designed to replace
discrete-component LED driving solutions in low-voltage applications such as 5 V, 12 V
or 24 V, providing benefits in terms of precision, integration and reliability.
An external resistor is used to set the current up to 2 A with a ± 10 % precision; a
dedicated pin can be used for PWM dimming. An open-drain pin output provides
information on load disconnection conditions.
PowerSO-8
DNF8 (3x3)
Key features
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PowerSO-10
Key benefits
Adjustable current set from 0.1 A to 2.0 A (STCS2),
1.5 A (STCS1), 500 mA (STCS05)
Adjustable turn-on ramp-up from 10 μs to 10 ms, set
with external capacitor to reduce the EMI noise
Microprocessor-compatible dimming input that turns
the LED current on/off
MLP-8L 3x3 mm and PowerSO8 (STCS1), SO8
(STCS05), PowerSO10 (STCS2)
QQ
QQ
QQ
Supports wide range of screen sizes from small
netbooks to wide-screen notebooks with one device
High integration, so few and small (cheap) external
components
Outstanding efficiency for longer battery life and
energy saving
Application example
Sales code
STEVAL-ILL014V1
18
Board
Description
Constant-current controller for high-brightness LEDs based on
STCS1A
Technical documents
UM0422: Constant current controller for
high brightness LEDs
L6902D
The L6902D is a complete and simple step-down switching regulator with adjustable
current limit.
Based on a voltage-mode structure, it integrates a current error amplifier for constantvoltage and constant-current control.
Key features
QQ
QQ
QQ
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SO-8
Key benefits
1 A in small SO8 package with minimum external
component count
P-channel power MOSFET: no bootstrap capacitor
Wide input voltage range: 8 V to 36 V
Adjustable LED current (VCS+ - VCS- = 100 mV)
High switching frequency: 250 kHz
External VREF available
QQ
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Monolithic and flexible solution
High efficiency
Low power dissipation
OVP available
Dimming capability
Application example
Sales code
Board
Description
Technical documents
AN2129: Dimming of super
high-brightness LEDs with L6902D
STEVAL-ILL010V1
High-intensity LED dimming driver based on L6902
AN1941: Low Voltage LED Driver Using
L6920D, L4971 and L6902D
AN1891: Application ideas: driving LEDs
using L497x, L597x, L692x DC-DC
converters families
19
L597x
The L597x is a step-down monolithic power switching regulator capable of delivering
more than 2 A DC current to the load depending on the application conditions. The
output voltage can be set from 1.235 V to 35 V.
The device uses an internal P-channel D-MOSFET (with a typical RDS(on) of 250 mΩ)
as switching element to minimize the size of the external components. An internal
oscillator fixes the switching frequency at 250 kHz.
Having a minimum input voltage of 4.4 V only, it is particularly suitable for 5 V buses,
available in all computer related applications.
Pulse-by-pulse current limit with the internal frequency modulation offers an effective
constant-current short-circuit protection.
Key features
QQ
QQ
QQ
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20
HSOP-8
Key benefits
More than 2 A in small SO8 package with minimum
external component count
P-channel power MOSFET: no bootstrap capacitor
Wide input voltage range: 4.4 V to 36 V
High switching frequency: 250 kHz/500 kHz, sync up
to 700 kHz
Inhibit pin
Embedded protection features
Sales code
SO-8
Board
QQ
QQ
QQ
QQ
QQ
Monolithic and flexible topology solutions
Wide input voltage range compatible with MR16
standard
High efficiency
Low power dissipation
Automotive grade available (A597x)
Description
Technical documents
EVAL5970D
L5970D up to 1 A step-down swtching regulator evaluation board
AN1330: Designing with the L5970D 1 A
high-efficiency DC-DC converter
EVAL5972D
L5972D up to 2 A step-down switching regulator evaluation board
AN1517: Designing with the L5972D
high-efficiency DC-DC converter
EVAL5973D
L5973D up to 2.5 A step-down switching regulator evaluation board
AN1518: Designing with the
2.5 A DC-DC converter L5973D
EVAL5973AD
L5973AD 2 A step-down switching regulator evaluation board
AN1723: Designing with L5973AD high
efficiency DC-DC converter
Application example
21
L598x
The L598x is a step-down switching regulator with embedded power MOSFET, and
can deliver up to 3 A to the load depending on the application conditions.
The input voltage can range from 2.9 V to 18 V. Requiring a minimum of external
components, the device includes an internal 250 kHz switching-frequency oscillator
that can be externally adjusted up to 1 MHz.
HSOP8
exposed pad
DNF8 (3x3)
Key features
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QQ
QQ
QQ
QQ
QQ
QQ
More than 3 A in small QFN3x3-8L package with
minimum external component count
P-channel power MOSFET: no bootstrap capacitor
Wide input voltage range: 2.9 V to 18 V
High switching frequency: 250 kHz, adjustable up to
1 MHz, with synchronization capability (180° out of
phase)
Internal soft-start
Inhibit pin
Suitable for MLCC output filter
Typ RDS(on) = 140 mΩ
Sales code
22
Key benefits
Board
QQ
QQ
QQ
QQ
Monolithic and flexible topology solutions
Low power dissipation
High efficiency
Compact applications
Description
EVAL5980
0.7 A step-down switching regulator demonstration board based on the L5980
EVAL5981
1 A step-down switching regulator demonstration board based on the L5981
EVAL5983
1.5 A step-down switching regulator demonstration board based on the L5983
EVAL5985
Evaluation board for L5985: 2 A step-down switching regulator
Application example
23
L6925/26/28
This family of DC-DC monolithic regulators is specifically designed for extremely
high efficiency. The L692x supply voltage can be as low as 2 V, allowing its use in
applications supplied by a single Li-ion cell. The output voltage can be adjusted using
an external divider down to 0.6 V.
The duty cycle can saturate to 100 %, allowing low drop-out operation.
Low-consumption mode can be selected under light load conditions, allowing
switching losses to be reduced. Other features include power good, overvoltage
protection, short-circuit protection and thermal shutdown (150 °C).
Key features
QQ
QQ
QQ
QQ
QQ
QQ
QQ
QQ
MSOP8
VFQFPN8
Key benefits
Input voltage range: 2 V to 5.5 V (2.7 V for L6925)
Output voltage: adjustable 0.6 V to VIN
Internal synchronous switch
Switching frequency: 1.4 MHz (L6928) to 600 kHz
(L6925/6), with selectable low-noise or
low-consumption mode
Output current: up to 800 mA
High efficiency > 90%
Low drop-out operation up to 100% duty cycle
Embedded protection features
QQ
QQ
Monolithic and flexible solution
High efficiency
Application example
Sales code
24
Board
Description
Technical documents
EVAL6926D
L6926 high-efficiency monolithic synchronous
step-down regulator evaluation board
AN1882: Designing with the L6926,
high-efficiency monolithic synchronous
step-down regulator
EVAL6928D
L6928D high-efficiency monolithic synchronous
step-down regulator evaluation board
AN1893: Designing with L6925D,
high-efficiency monolithic synchronous
step-down regulator
EVAL6928Q1
L6928Q1 high-efficiency monolithic synchronous
step-down converter evaluation board
AN2115: Designing an application with
the L6928, high-efficiency monolithic
synchronous step-down regulator
ST1S10
The ST1S10 is a high-efficiency step-down PWM current-mode switching regulator
capable of providing up to 3 A of output current. The device operates with an input
supply range from 2.5 V to 18 V and provides an adjustable output voltage.
It operates either at a 900 kHz fixed frequency or can be synchronized to an external
clock (from 400 kHz to 1.2 MHz). The high switching frequency allows the use of tiny
SMD external components, while the integrated synchronous rectifier eliminates the
need for a Schottky diode.
The ST1S10 provides excellent transient response, and is fully protected against
thermal overheating, switching overcurrent and output short circuit. The ST1S10 is the
ideal choice for LED lighting in DC bus-powered applications.
Key features
QQ
QQ
QQ
QQ
QQ
QQ
QQ
QQ
PowerSO-8
DNF8 (4x4 mm)
Key benefits
Output voltage: adjustable from 0.8 V
Input voltage: 2.5 V to 18 V
Output current capability: 3 A
Synchronous rectification
Inhibit function
Synchronizable switching frequency:
400 kHz to 1.2 MHz
Internal soft start
Dynamic short-circuit protection
QQ
QQ
QQ
Typical efficiency: 90%
Standby supply current: max 6 μA
Minimum number of external components
Application example
Sales code
Board
Description
Technical documents
STEVAL-ISA044V1
3 A synchronous 900 kHz step-down DC-DC converter with inhibit
function
AN2620: 3 A high-frequency
synchronous 900 kHz step-down
converter based on the ST1S10
STEVAL-ISA044V2
3 A synchronous 900 kHz step-down DC-DC converter with inhibit
function
AN2754: Buck high-brightness LED
driver based on the ST1S10 step-down
DC-DC converter voltage regulator
25
Buck-boost converters
STCF04
The STCF04 is a dedicated and space-optimized high-efficiency solution for driving
a LED flash module in camera phones, PDAs and other handheld devices using the
SuperCap technology. It is based on a DC-DC buck-boost converter, which ensures
correct and efficient charging control and monitoring of the SuperCap within the entire
battery voltage range. The output current control ensures good current regulation over
the forward voltage spread characteristics of the flash LEDs in torch and flash mode
operation. The SuperCap charging current is programmed to a defined value which
avoids overload of the battery.
Key features
QQ
QQ
QQ
QQ
QQ
Selectable 200 mA/400 mA SuperCap charging
current
Active balancing of SuperCap voltage
LED over-temperature detection and protection with
external NTC resistor
Shorted LED failure detection and protection
Chip over-temperature detection and protection
Application example
26
TFBGA25
(3 x 3 mm)
STCF06
The STCF06 is a high-efficiency power supply solution to drive a single-LED flash
in camera phones, PDAs and other battery-powered devices. It is a buck-boost
converter able to guarantee correct LED current control over all possible conditions of
battery voltage and LED forward voltage. The output current control ensures correct
current regulation over the forward voltage spread characteristics of the flash LED.
All the functions of the device are controlled through the I2C bus which helps to reduce
logic pins on the package and to save PCB tracks on the board.
TFBGA25
(3 x 3 mm)
Key features
QQ
QQ
QQ
QQ
QQ
QQ
QQ
1.8 MHz fixed frequency PWM control
Efficiency up to 80%
Full I2C control
LED over-temperature detection and protection with
external NTC resistor
Open and shorted LED failure detection and
protection
Chip over-temperature detection and protection
Less than 1 μA standby current
Application example
Sales code
STEVAL-TLL006V1
Board
Description
Technical documents
High-power LED driver demo board for single flash with I2C
interface based on STCF06 (includes motherboard based on uPSD)
AN2730: High power LED driver for single
Flash with I2C interface
27
STBB1
The STBB1 is a fixed-frequency, high-efficiency, buck-boost DC-DC converter able to
provide output voltages ranging from 1.2 V to 5.5 V and input voltages from 2.0 V to
5.5 V. The device can operate with input voltages higher than, equal to, or lower than
the output voltage making the product suitable for single lithium-ion, multicell alkaline
or NiMH applications where the output voltage is within the battery voltage range.
DNF10 (3 x 3 mm)
Key features
QQ
QQ
QQ
QQ
QQ
QQ
QQ
QQ
QQ
Operating input voltage range from 2.0 V to 5.5 V
2% DC feedback voltage tolerance
Synchronous rectification
Shutdown function
1.5 MHz switching frequency
Power save mode at light load
Typical efficiency: > 94 %
1 A output current capability
Shutdown current < 1 μA
Application example
28
Key benefits
QQ
QQ
Minimum number of external components
MHz frequency allows the use of tiny external
components
29
Offline solutions
VIPer ®
ST’s VIPer series of offline switch-mode power supplies combines an optimized, highvoltage, vertical power MOSFET with state-of-the-art PWM circuitry. The result is a
truly innovative offline LED SMPS solution that is simpler, quicker, less expensive and
able to address low-power, high-efficiency applications delivering up to 14 W with a
universal input voltage range.
Fully compliant with eco standards, the VIPer series includes the VIPerx2 family and
the new VIPerPlus family, with the subfamilies VIPerx7, VIPerx6 and VIPerx5, offering
new functionalities as well as higher performance with lower component count.
Both the output voltage and current can be regulated by using a bipolar-based circuitry
in non-isolated applications or an optocoupler driven by a TSM device in isolated
applications. This makes the VIPer series suitable for general LED illumination, interior
decoration lighting, and neon and bulb replacement.
Key features
QQ
QQ
QQ
QQ
QQ
QQ
QQ
QQ
QQ
QQ
QQ
QQ
QQ
30
DIP-7
Key benefits
Step-down current-mode PWM regulator
Output voltage: adjustable from 0.8 V
Input voltage: 2.5 V to 18 V
2% DC output voltage tolerance
Synchronous rectification
Inhibit function
Synchronizable switching frequency:
400 kHz to 1.2 MHz
Internal soft start
Dynamic short-circuit protection
Typical efficiency: 90%
Output current capability: 3 A
Standby supply current: max 6 μA over
temperature range
Operating junction temperature: -25 °C to 125 °C
Sales code
SO-16
Board
QQ
QQ
QQ
QQ
QQ
QQ
Cost-effective solutions with minimum component
count
High robustness
Advanced controllers and functionalities
Easily meets all new energy regulations:
QQ High efficiency
QQ Minimum standby current
Portfolio with high differentiation and continuous
improvement
Technical support by tools and competence centers
Description
Technical documents
STEVAL-ILL017V1
3.5 W non-isolated offline constant-current LED driver based on
VIPer17HN
STEVAL-ILL001V1
Dimmable driver for HB power LEDs with VIPer22A (DALI connector)
AN2042 VIPower: dimmable driver for
high-brightness LEDs with VIPer22A-E
STEVAL-ILL005V1
VIPer12A offline, constant-current driver for high-intensity LEDs
AN1916 VIPower: offline constantcurrent LED driver using VIPer12/22A
STEVAL-ILL026V1
3 W non-isolated offline LED driver based on VIPer22AS-E
Application example
Current regulation
Efficiency variation
0.40
0.30
Efficiency [%]
LED current [A]
0.35
0.25
0.20
0.15
0.10
0.05
0.00
0
1
LEDs
2
3
4
5
6
7
8
9
LED current
90
80
70
60
50
40
30
20
10
0
0
1
2
Pout [W]
3
4
5
6
Vin = 110 Vac
7
8
9
10
Vin = 220 Vac
31
L6562A/AT
The L6562A is a current-mode PFC controller operating in transition mode (TM).
The highly linear multiplier includes a special circuit that reduces AC input current
distortion and allows wide-range mains operation with an extremely low THD, even
over a large load range. The output voltage is controlled by means of a voltage-mode
error amplifier and an accurate internal voltage reference (1% @ Tj = 25 °C).
The device features extremely low consumption (60 μA max. before start-up and 75 W
SO-8
Sales code
Board
Description
Technical documents
STEVAL-ILL013V1
80 W offline LED driver with dimming based on L6562A
UM0670: 80 W offline LED driver with
PFC
STEVAL-ILL016V1
15 W offline Triac dimmable LED driver
(USA market - 115 V)
AN2711: 15 W offline Triac dimmable
LED driver
Constant-current inverse buck LED driver using the L6562A
AN2928: Modified buck converter for
LED applications
EVL6562A-35WFLB
35 W wide-range high power factor flyback converter using L6562A
AN2838: 35 W wide-range high power
factor flyback converter demonstration
board using the L6562A
STEVAL-ILL027V1
18 W single-stage offline LED driver based on L6562A
EVL6562A-LED
33
L6599A/AT
The L6599 is a double-ended controller specific for the series-resonant half-bridge
topology. It provides 50% complementary duty cycle: the high-side and low-side
switches are driven on/off 180° out-of-phase for exactly the same time. Output
voltage regulation is obtained by modulating the operating frequency. A fixed deadtime inserted between the turn-off of one switch and the turn-on of the other one
guarantees soft-switching and enables high-frequency operation.
Key features
QQ
QQ
QQ
QQ
QQ
QQ
QQ
QQ
QQ
50% duty cycle, variable frequency control of resonant
half-bridge
High-accuracy oscillator
Operating frequency: up to 500 kHz
Two-level OCP: frequency shift and latched shutdown
Interface with PFC controller
Latched disable input
Burst-mode operation at light load
Input for power-on/off sequencing or brownout
protection
Non-linear soft-start for monotonic output voltage rise
Application example
34
DIP-16
SO-16N
Key benefits
QQ
QQ
QQ
Advanced standby performances
Compliance to the main worldwide energy programs
(EPA2, Energy Star, etc.)
Compliance to the main worldwide EMI regulations
L6565
The L6565 is a current-mode primary controller IC, specifically designed to build offline
quasi-resonant ZVS (zero voltage switching at switch turn-on) flyback converters.
Quasi-resonant operation is achieved by means of a transformer demagnetization
sensing input that triggers the switch’s turn-on. The converter’s power-capability
variations with the mains voltage are compensated by line voltage feedforward. At light
load, the device features a special function that automatically lowers the operating
frequency while maintaining the operation as close to ZVS as possible. In addition to
very low start-up and quiescent currents, this feature helps keep the consumption from
the mains low at light load to be Blue Angel and Energy Star compliant.
Key features
QQ
QQ
QQ
QQ
QQ
QQ
QQ
DIP-8
(MiniDIP)
SO-8
Key benefits
Quasi-resonant (QR) zero voltage switching (zvs)
topology
Line feedforward to deliver constant power versus
mains change
Frequency foldback for optimum standby efficiency
Pulse-by-pulse and hiccup-mode ocp
Ultra-low start-up (< 70 μA) and quiescent current
(< 3.5 mA)
Disable function (on/off control)
±400 mA totem pole gate driver with UVLO pull-down
QQ
QQ
QQ
Superior effciciency
Compliant to main world wide EMI regulations
Blue Angel, Energy Star compliant
Application example
Sales code
STEVAL-ISA019V2
Board
Description
80 W ESBT quasi-resonant wide-range SMPS with L6565 for
3-phase application
Technical documents
AN2495: 3-phase 80 W SMPS with very
wide-range input voltage based on the
L6565 and ESBT STC04IE170HV
35
Microcontrollers
STM8S
STMicroelectronics’ STM8S family of general-purpose 8-bit Flash microcontrollers offers ideal solutions for industrial
and appliance market requirements. An advanced core version combined with a 3-stage pipeline ranks the STM8S
microcontroller in the top position for performance. The true embedded EEPROM and the calibrated RC oscillator bring
a significant cost effectiveness to the majority of applications. An easy-to-use and intuitive development environment
contributes to improving time to market.
STM8S: robust and reliable
STM8 core
In addition to performance, comprehensive design
specifications and specific peripheral features make the
STM8S robust and reliable:
QQ 2 internal RC oscillators with dual independent
watchdogs
QQ Clock security system (CSS) to monitor the failure of
external clock source
QQ Complementary copy of configuration option bytes
and EMS reset
QQ Low emission in accordance with the IEC 61967
standards
QQ Outstanding robustness performance according to
IEC 1000-4-2 and IEC 1000-4-4 standards
QQ High current injection immunity (1 μA leakage current
when 4 mA current is injected in adjacent pin)
QQ Dedicated firmware library compliant to Class B of
IEC 60335
QQ
QQ
QQ
QQ
QQ
QQ
1.6 CPI average
20 MIPS peak @ 24 MHz
32-bit memory interface
3-stage pipeline
16-bit index registers
20 addressing modes
Complete instructions
B4 B3 B2 B1
32-bit
memory
Data
memory
Fetch
Decode
3-stage
pipeline
Execute
STM8 core
Block diagram
Clock controller
Xtal 1-24 MHz
Clock detector
Internal RC
oscillator 128 kHz
Clocks to
peripherals
core
STM8 core
@ 24 MHz
SWIM
debug module
Up to 68 I/Os
36
POR
BOR
1.8 V regulator
4 KB to 128 KB
Flash memory
Address and data bus
Nested IT controller
32 IT vectors
Up to 37 external IT
2x U(S)ART
LIN
Smartcard, IrDA
Reset block
Up to 6 KB SRAM
Up to 2 KB EEPROM
Boot ROM
10-bit ADC
16 channels
CAN 2.0 B
SPI
Address and data bus
Internal RC
oscillator 16 MHz
16-bit timer
4 CAPCOM +
3 comp. outputs
2x 16-bit timer
2/3 CAPCOM
8-bit timer
2x watchdog
(IWDG and WWDG)
Beeper
1/2/4 kHz
AWU
Features and benefits
Features
Benefits
2.95 to 5.5 V, -40 to +125 °C range
Ideal for industrial and appliance requirements
Up to 20 MIPS @ 24 MHz, Harvard architecture
Optimized core performance and code-size efficiency
16-bit advanced control timer
Satisfies all needs with configurable modes, motor control, capture,
compare, PWM, and others
Embedded true EEPROM, 300 Kcycles
Lower system cost
CAN, 2xU(S)ART, SPI, I2C
All essential communication peripherals supporting various protocols
Single-voltage Flash memory with single-byte programming granularity
In-application programming (IAP), in-circuit programming (ICP)
4 low-power modes
Efficient power management
Trimmable 16 MHz and 128 kHz internal RC oscillators with dual independent
watchdogs and 2 μs fast switching between clock sources
Reduced cost, robust clock architecture, optimized power consumption
Integrated POR and BOR
Reliable reset mechanism during power up and down
Low emission and high current injection immunity
Outstanding EMC, no need for extra protection
4 to 128 Kbyte Flash in 20 to 80 pin packages
Package-in-package compatible across family, ideal choice of platform
On-chip debugging and programming through single-wire interface, SWIM
Easy to use, non-intrusive and low-cost development environment
Up to 16-channel 10-bit ADC ±1 LSB with scan mode, conversion time < 3 μs
Fast and accurate A/D converter
Simple device selection
The STM8S family is available
in two lines: the Performance
line and Access line.
With FCPU specified up to
24 MHz, the Performance
line is ideal when processing
power is needed.
The Access line is an affordable
solution when cost efficiency is
the main concern.
Both lines share the same
architecture and peripheral set
making navigation possible
across the portfolio.
STM8S product lines
UART
LIN/Smartcard/IrDA
STM8S20x Performance line
SPI
10 MHz
Up to 3 x 16-bit timer
8-bit timer
2 x Watchdog
(IWDG and WWDG)
AWU
Beeper 1/2/4 kHz
10-bit ADC
Up to 16 channel
XTAL
16 MHz int. RC osc.
128 MHz int. RC osc.
SWIM
Debug module
STM8 core
Up to
@ 24 MHz 128 Kbytes
Flash
Up to
6 Kbytes
SRAM
Up to
2 Kbytes
EEPROM
Up to
2 Kbytes
SRAM
Up to
1 Kbytes
EEPROM
CAN
2.0B
2nd
UART
STM8S10x Access line
STM8 core
@ 16 MHz
Up to
32 Kbytes
Flash
Large family
A large product family allows
platform validation and
simplifies migration from one
product to another. This is a
great advantage to speed up
development with a maximum
reuse of the work already
invested.
QQ It improves time to market
QQ It reduces risk
QQ It optimizes resources
STM8S portfolio
Memory size
STM8S208CB STM8S208RB STM8S208MB
128 KB
STM8S207CB STM8S207RB STM8S207MB
64 KB
32 KB
16 KB
8 KB
4 KB
STM8S103F3
STM8S207S8
STM8S207C8
STM8S207R8
STM8S207K6
STM8S207S6
STM8S207C6
STM8S207R6
STM8S105K6
STM8S105S6
STM8S105C6
STM8S105K4
STM8S105S4
STM8S105C4
STM8S903K3
Performance line
STM8S103K3
Access line
STM8S103F2
20 pins
TSSOP20/
VQFN20
32 pins
LQFP32/
VQFN32
44 pins
LQFP44
48 pins
LQFP48/
VQFN48*
64 pins
LQFP64
80 pins
Pin count
LQFP80
*under qualification
37
8-bit microcontroller based LED emergency lighting
System features:
QQ
QQ
QQ
38
Universal AC input voltage
Mains failure and external brightness detection
Four selectable modes:
QQ Emergency lighting
QQ Twilight with switch
QQ Twilight pocket lamp
QQ Li-ion battery charger with over-temperature
protection
STM32
The STM32 family of 32-bit Flash microcontrollers is based on the breakthrough ARM CortexTM-M3 core – a core
specifically developed for embedded applications that require a combination of high-performance, real-time, low-power
and low-cost operation. The STM32 family benefits from the Cortex-M3 architectural enhancements (including the
Thumb-2® instruction set) that deliver improved performance combined with better code density, and a tightly coupled
nested vectored interrupt controller that significantly speeds response to interrupts, all combined with industry-leading
power consumption. STMicroelectronics was a lead partner in developing the Cortex-M cores and with STM32 offers a
comprehensive portfolio of advanced MCUs that we are committed to extending in capability, price range and features
to cover the needs of microcontroller convergence.
The STM32 family is built to offer new degrees of freedom to MCU users. It offers a complete 32-bit product range
that combines high-performance, real-time, low-power and low-voltage operation, while maintaining full integration and
ease of development.
It eases migration from the 16-bit world thanks to its high level of features integration, its easy-to-use architecture, its
low-power capability and cost-effectiveness.
The STM32 family will enable you to create new applications, and design in the innovations you have been long
dreaming about.
Key benefits
QQ
QQ
QQ
QQ
QQ
QQ
Leading-edge architecture with the latest Cortex-M3
core from ARM
Excellent real-time behaviour
Outstanding power efficiency
Superior and innovative peripherals
Maximum integration
Easy development, fast time to market
Cortex-M3
core
Outstanding
power
efficiency
Superior and
innovative
peripherals
Maximum
integration
Extensive
tools and
software
Leading edge
architecture
Excellent real-time
behaviour
Sub µA RTC,
low voltage
0.27 mA/MHz,
low-power modes
USB OTG,
Ethernet, dual CAN,
ADC 12-bit,
advanced timers
Reset circuitry clocks,
oscillators,
PLL regulator
RTC, watchdog
Various IDE,
starter kits,
libraries,
RTOS and
stacks
Future proof
design
Environment
friendly, suits
low-power
operation
Address all
your needs
and beyond
Cost and
space saving
More time for
innovation
improved
productivity
STM32 platform
more than 70 fully compatible devices
39
STM32, the optimal platform choice
STM32, the largest portfolio
The STM32 is an optimal choice to support many
applications with the same platform:
QQ From reduced memory and pin requirements to larger
needs
QQ From performance demanding to battery operated
QQ From simple cost-sensitive to complex high-value
The total pin-to-pin, peripheral and software compatibility
across the family gives you full flexibility across more than
70 devices.
You can upgrade to a higher or downgrade to a lower
memory size, or use different packages without changing
your initial layout or software.
The STM32 offers the widest selection of microcontroller
devices:
QQ Up to 72 MHz Cortex-M3 CPU
QQ 4-Kbyte to 64-Kbyte SRAM
QQ Four lines: Performance, USB Access, Access and
Connectivity lines
QQ Pin-to-pin, software and peripheral compatibility
across family
QQ 2.0 to 3.6 V power supply, 5 V tolerant I/Os
QQ -40 to +85 °C or up to 105 °C operating temperature
range
STM32F10x portfolio
Flash size (bytes)
STM32F103RE
512 K
384 K
256 K
128 K
STM32F103VE
STM32F103ZE
STM32F101RE
STM32F101VE
STM32F101ZE
STM32F103RD
STM32F103VD
STM32F103ZD
STM32F101RD
STM32F101VD
STM32F101ZD
STM32F107RC
STM32F107VC
STM32F105RC
STM32F105VC
STM32F103RC
STM32F103VC
STM32F103ZC
STM32F101RC
STM32F101VC
STM32F101ZC
STM32F107RB
STM32F107VB
STM32F105RB
STM32F105VB
STM32F103CB
STM32F103RB
STM32F103VB
STM32F102CB
STM32F102RB
STM32F101CB
STM32F101RB
STM32F103C8
STM32F103R8
STM32F101VB
STM32F105R8
STM32F103T8
64 K
STM32F102C8
STM32F102R8
STM32F101T8
STM32F101C8
STM32F101R8
STM32F103T6
STM32F103C6
STM32F103R6
STM32F102C6
STM32F102R6
STM32F101T6
STM32F101C6
STM32F101R6
Performance line
STM32F103T4
STM32F103C4
STM32F103R4
USB Access line
STM32F102C4
STM32F102R4
STM32F101T4
STM32F101C4
STM32F101R4
36 pins
QFN (6 x 6 mm)
48 pins
QFP (7 x 7 mm)
64 pins
QFP (10 x 10 mm)
100 pins
LQFP (14 x 14 mm)
line144 pins
LQFP (20 x 20 mm)
BGA64
(5 x 5 mm)
BGA
(10 x 10 mm)
BGA
(10 x 10 mm)
32 K
16 K
WLCSP64
40
STM32F103V8
STM32F101V8
Access line
Connectivity line
STM32F10x family block diagram
This block diagram shows all the available peripherals. For exact product content, please refer to the device summary.
Cortex-M3
CPU
36/72 MHz
Flash Up to 512 KBytes
I/F
Flash memory
Up to 64 KBytes SRAM
JTAG/SW debug
Up to 84 Bytes
backup data
ETM
Nested vectored
interrupt controller
1 x systic timer
ARM Lite
high-speed
bus matrix/
arbiter
(max. 72 MHz)
DMA
up 12 channels
FSMC
SRAM/NOR/NAND/CF/
LCD parallel interface
DMA
XTAL oscillators
up to 40 kHz + 3~25 MHz
Internal RC oscillators
40 kHz + 8 MHz
PLL block (3 PLLs)
Ethernet MAC
10/100 with
IEEE 1588, MII/RMII
SDIO
SD/SDIO/MMC/CE-ATA
1 x USB OTG 2.0
Full Speed with PHY
CRC
Clock control
Bridge
Power supply
Reg 1.8 V
POR/PDR/PVD
RTC / AWU
ARM peripheral bus
(max. 36 MHz)
Up to 16 external
interrupts
Up to 80 I/Os
(max. 72 MHz)
2 x 16-bit PWM
synchronized AC tImer
ARM peripheral bus
Bridge
2 x watchdog
(independent and window)
2 x CAN 2.0B
4 x USART/LIN
Smartcard/IrDA
Modem control
3 x 12-bit ADC / 1 MSPS
up to 21 channels
1x USART/LIN
Smartcard/IrDa
Modem-control
Auto wake-up capability with RTC alarm
Controller area network
CompactFlash
Cyclic redundancy check
Direct memory access
Embedded Trace Macrocell
Infrared Data Association
1 x USB 2.0FS
2 x 12-bit DAC
1x SPI
AWU:
CAN:
CF:
CRC:
DMA:
ETM:
IrDA:
6 x 16-bit timer
Temperature sensor
I2S:
LIN:
MII:
MMC:
PDR:
POR:
PVD:
Inter-IC sound
Local interconnect network
Media independent interface
MultiMediaCard
Power-down reset
Power-on reset
Programmable voltage
RMII: Reduced media independent interface
RTC: Real-time clock
SDIO: Secure digital input output
SD: Secure digital
USART: Universal sync/async receiver transmitter
41
25 W LED street light driver with 80 W solar energy charger
Demonstration board features
QQ
QQ
QQ
QQ
QQ
QQ
Ambient light detection
Solar light perturbation and observation
Optimized battery charge circuit with indicators
(green LED indicates fully charged and red LED
indicates system in charging state)
LED light panel temperature detection
LED panel light time controlled by DIP switch and
monitoring by microprocessor
JTAG pin for onboard programming and debugging
Sales code
STEVAL-ILL022V1
42
Board
Description
25 W LED street light with 80 W solar energy charger based on
STM32
Technical documents
UM0512: Solar-LED streetlight controller
25 W LED lamp driver with 80 W battery
charger based on the STM32F101Rx
Product selection guide
LED array drivers
Part number
Description
I/O
VDD (V)
Bit-to-bit
accuracy
(+/- %)
Iout (mA)
STP04CM05
4-bit constant-current power LED driver
Serial in/parallel out
3.3 to 5.5
1
80 to 400
STP08DP05
8-bit constant-current LED driver with output error detection
Serial in/parallel out
3.0 to 5.5
1.5
5 to 100
STP08CP05
8-bit constant-current LED driver
Serial in/parallel out
3.0 to 5.5
1.5
5 to 100
STP16CP05
16-bit constant-current LED driver
Serial in/parallel out
3.0 to 5.5
1.5
5 to 100
STP16DP05
16-bit constant-current LED driver with output error detection
Serial in/parallel out
3.0 to 5.5
1.5
5 to 100
STP16CPS05
16-bit constant-current LED driver with auto-power saving
Serial in/parallel out
3.0 to 5.5
1.5
5 to 100
STP16DPS05
16-bit constant-current LED driver with auto-power saving and output error detection
Serial in/parallel out
3.0 to 5.5
1.5
5 to 100
STP16CPC05
16-bit constant-current LED driver with balanced on/off
Serial in/parallel out
3.0 to 5.5
1.5
5 to 100
STP16CPP05
16-bit low-current, high-precision LED driver
Serial in/parallel out
3.0 to 5.5
2
3 to 40
STP16DPP05
16-bit low-current, high-precision LED driver with output error detection
Serial in/parallel out
3.0 to 5.5
2
3 to 40
STP16CPPS05
16-bit low-current, high-precision LED driver with auto-power saving
Serial in/parallel out
3.0 to 5.5
2
3 to 40
STP16DPPS05
16-bit low-current, high-precision LED driver with
auto-power saving and output error detection
Serial in/parallel out
3.0 to 5.5
2
3 to 40
STP24DP05
24-bit constant-current LED driver with output error detection
Serial in/parallel out
3.0 to 5.5
3
5 to 80
STPIC6C595
8-bit LED driver with overvoltage protection
Serial in/parallel out
4.5 to 5.5
N/A
100 continuous
STPIC6D595
8-bit LED driver
Serial in/parallel out
4.5 to 5.5
N/A
100 continuous
Boost converters
Part
number
Description
ILED
(mA)
Rows
VIN
(V)
VOUT
(V)
LEDs
(white)
FSW (kHz)
Package
Extra functions
PM6600
6-row 32 mA LED driver with boost
up to 32
regulator for mobile PC LCD panel backlight
6
4.7 to 28
up to 36
60
570 to 750
VFQFPN4x4-24L
PWM dim, adj SS, INH, sync,
adj OVP, fault management
LED7706
6-row 30 mA LED driver with boost
regulator for LCD panel backlight
up to 30
6
4.5 to 36
up to 36
60
200 to 1000
QFN4x4-24L
PWM dim, adj SS, INH, sync,
adj OVP, fault management
LED7707
6-row 85 mA LED driver with boost
regulator for LCD panel backlight
up to 85
6
4.5 to 36
up to 36
60
200 to 1000
QFN4x4-24L
PWM dim, adj SS, INH, sync,
adj OVP, fault management
L6920D
High-efficiency synchronous
step-up converter
0.8 (Ipk)
1
0.6 to 5.5
2 to 5.2
1
Up to 1000
TSSOP8
LBI and LBO, Vref, shutdown
L6920DB
High-efficiency synchronous
step-up converter
1 (Ipk)
1
0.6 to 5.5 1.8 to 5.2
1
Up to 1000
MSOP8
LBI and LBO, Vref, shutdown
ST8R00
Micropower syncronous
step-up converter
1
1
4 to 6
6 to 12
3
1200
DFN4x4-8L
Burst mode and continuos
mode, INH
STCF05
High-power white LED driver
with I2C interface
0.4*
1
2.5 to 5.5
Vbat to
10.2
2
1800
TFBGA3x3-25L
Flash mode, torch mode,
dim, falt management
LEDs
(white)
FSW (kHz)
* ILED (A)
Buck converters
Part
number
Description
L4976
1 A step-down switching regulator
L4971
1.5 A step-down switching regulator
L4978
2 A step-down switching regulator
L4973
3.5 A step-down switching regulator
IOUT
(A)
VIN
(V)
VOUT (V)
Package
Extra functions
1
8 to 55
up to Vin
15
Up to 300
DIP8/SO16W
Vref
1.5
8 to 55
up to Vin
15
Up to 300
DIP8/SO16W
INH
2
8 to 55
up to Vin
15
Up to 300
DIP8/SO16W
INH
3.5
8 to 55
up to Vin
15
Up to 300
DIP18/SO20
Vref, INH, sync
L5970D
1 A step-down switching regulator
1
4.4 to 36
up to Vin
9
250
SO8
Vref, INH, sync
L5970AD
1 A step-down switching regulator
1
4.4 to 36
up to Vin
9
500
SO8
Vref, INH, sync
L5972D
1.5 A step-down switching regulator
1.5
4.4 to 36
up to Vin
9
250
SO8
-
L5973AD
1.5 A step-down switching regulator
1.5
4.4 to 36
up to Vin
9
500
HSOP8
Vref, INH, sync
L5973D
2 A step-down switching regulator
2
4.4 to 36
up to Vin
9
250
HSOP8
Vref, INH, sync
L6902D
Step-down switching regulator with
adjustable current limit up to 1 A
1
8 to 36
up to Vin
9
250
SO8
Vref, CC/CV mode
43
Product selection guide (cont’d)
Buck converters (cont’d)
Part
number
Description
L5980
0.7 A step-down switching regulator
L5981
1 A step-down switching regulator
L5983
1.5 A step-down switching regulator
L5985
2 A step-down switching regulator
L5986/A
2.5 A step-down switching regulator
L5987/A
3 A step-down switching regulator
IOUT
(A)
VIN
(V)
VOUT (V)
LEDs
(white)
FSW (kHz)
Package
Extra functions
0.7
2.9 to 18
up to Vin
4
Up to 1000
QFN3x3-8L
Adj Fsw, INH, sync
1
2.9 to 18
up to Vin
4
Up to 1000
QFN3x3-8L
Adj Fsw, INH, sync
1.5
2.9 to 18
up to Vin
4
Up to 1000
QFN3x3-8L
Adj FFsw, INH, sync
2
2.9 to 18
up to Vin
4
Up to 1000
QFN3x3-8L
Adj Fsw, INH, sync
2.5
2.9 to 18
up to Vin
4
Up to 1000
QFN3x3-8L/HSOP8
Adj Fsw, INH, sync
3
2.9 to 18
up to Vin
4
Up to 1000
QFN3x3-8L/HSOP8
Adj Fsw, INH, sync
L6925D
800 mA step-down synchronous switching
regulator
0.8
2.7 to 5.5
up to Vin
1
600
MSOP8
LBI and LBO
L6926
800 mA step-down synchronous switching
regulator
0.8
2 to 5.5
up to Vin
1
600
QFN3x3-8L/MSOP8
Pgood, run, sync
L6928
800 mA step-down synchronous switching
regulator
0.8
2 to 5.5
up to Vin
1
1400
QFN3x3-8L/MSOP8
Pgood, run, sync
ST1S10
Monolithic synchronous step-down regulator
3
2.5 to 18
0.8 to 16
3
900
DFN4x4-8L / HSOP8
sync
STCS05
0.5 A max constant-current LED driver
0.5
4.5 to 40
VIN - VDROP
9
-
SO8
Dimming, diagnostics, EN
STCS05A
0.5 A max constant current LED driver
0.5
4.5 to 40
VIN - VDROP
9
-
SO8
Dimming, diagnostics, EN
STCS1
1.5 A max constant-current LED driver
1.5
4.5 to 40
VIN - VDROP
9
-
DFN3x3-8L/HSOP8
Dimming, diagnostics, EN
STCS1A
1.5 A max constant-current LED driver
1.5
4.5 to 40
VIN - VDROP
9
-
DFN3x3-8L/HSOP8
Dimming, diagnostics, EN
STCS2
2 A max constant-current LED driver
2
4.5 to 40
VIN - VDROP
9
-
PowerSO-10
Dimming, diagnostics, EN
STCS2A
2 A max constant-current LED driver
2
4.5 to 40
VIN - VDROP
9
-
PowerSO-10
Dimming, diagnostics, EN
ILED (A)
Rows
VIN (V)
VOUT (V)
LEDs
(white)
FSW (kHz)
Package
Extra functions
Buck-boost converters
Part
number
Description
STCF02
High-power white LED driver
0.6
1
2.7 to 4.5
2.5 to 5.1
1
1800
QFN4x4-20L
Flash mode, torch mode,
fault management
STCF03
High-power white LED driver with
I2C interface
0.8
1
2.7 to 5.5
2.5 to 5.3
1
1800
QFN4x4-20L /
TFBGA3x3-25L
Flash mode, torch mode,
ready mode, dimming,
fault management
STCF03I
High-power white LED driver with
I2C interface
0.6/0.8
1
2.7 to 5.5
2.5 to 5.3
1
1800
TFBGA3x3-25L
Flash mode, torch mode,
ready mode, dimming,
fault management
STCF04
High-power white LED SuperCap
driver with I2C interface
Up to 10
1
2.7 to 5.5
up to 5.5
1
1800
TFBGA3x3-25L
Flash mode, torch mode, ready
mode, dimming,
fault management
STCF06
White LED driver with I2C interface
1/1.3/1.5
1
2.7 to 5.5
2.5 to 5
1
1800
TFBGA3x3-25L
Flash mode, torch mode,
ready mode, dimming,
fault management
STBB1
High-efficiency dual-mode
buck-boost DC-DC converter
1
1
2 to 5.5
1.2 to 5.5
1
1500
DFN3x3-10L
Auto mode, PWM mode,
VIPer
44
VDD
Package
Power capability max
(wide range input) (V)
Drain source
voltage min (V)
min (V)
max (V)
RDS(on)
(Ω)
FSW typ
(kHz)
Extra functions
VIPER22AS-E
SO-8
7
730
9
7
17
60
PWM current limiting mode,
burst mode
VIPER22ADIP-E
DIP-8
12
730
9
12
17
60
PWM current limiting mode,
burst mode
VIPER12AS-E
SO-8
5
730
9
5
30
60
PWM current limiting mode,
burst mode
VIPER12ADIP-E
DIP-8
8
730
9
8
30
60
PWM current limiting mode,
burst mode
VIPER17LN
DIP-7
7
800
(avalanche rugged)
8.5
23.5
(internal clamp)
20
60
PWM current limiting mode,
burst mode
Part number
VIPer (cont’d)
Package
Power capability max
(wide range input) (V)
Drain source
voltage min (V)
VIPER17HN
DIP-7
7
VIPER17LD
SO16N
VIPER17HD
VDD
RDS(on)
(Ω)
FSW typ
(kHz)
Extra functions
23.5
(internal clamp)
20
115
PWM current limiting mode,
burst mode
8.5
23.5
internal clamp)
20
60
PWM current limiting mode,
burst mode
800
(avalanche rugged)
8.5
23.5
(internal clamp)
20
115
PWM current limiting mode,
burst mode
13
800
(avalanche rugged)
8.5
23.5
(internal clamp)
8
60
PWM current limiting mode,
burst mode
DIP-7
13
800
(avalanche rugged)
8.5
23.5
(internal clamp)
8
115
PWM current limiting mode,
burst mode
VIPER16LN
DIP-7
7
800
(avalanche rugged)
10.5
(internal self supply)
23.5
(internal clamp)
20
60
PWM current limiting mode,
burst mode
VIPER16HN
DIP-7
7
800
(avalanche rugged)
10.5
(internal self supply)
23.5
(internal clamp)
20
115
PWM current limiting mode,
burst mode
VIPER16LD
SO16N
7
800
(avalanche rugged)
10.5
(internal self supply)
23.5
(internal clamp)
20
60
PWM current limiting mode,
burst mode
VIPER16HD
SO16N
7
800
(avalanche rugged)
10.5
(internal self supply)
23.5
(internal clamp)
20
115
PWM current limiting mode,
burst mode
Part number
min (V)
max (V)
800
(avalanche rugged)
8.5
7
800
(avalanche rugged)
SO16N
7
VIPER27LN
DIP-7
VIPER27HN
Power factor correctors
Part number
Package
Description
Topology
RoHS
compliant
VCC (V)
Supply
current (mA)
Gate drive capability
(source/sink) (A)
Delay to
output (ns)
L6562
DIP-8, SO-8
Improved TM power factor corrector
Boost, flyback
Yes
10.3 to 22
3.5
0.6 / 0.8
200
L6562A
DIP-8, SO-8
Enhanced TM power factor corrector
Boost, flyback
Yes
10.5 to 22.5
3.5
0.6 / 0.8
175
DIP-8, SO-8
Enhanced TM power factor corrector
with extended temperature range
Boost, flyback
Yes
10.5 to 22.5
3.5
0.6 / 0.8
175
L6562AT
Resonant and quasi resonant controllers
Part number
Package
Description
Topology
RoHS
compliant
VCC (V)
Gate drive
capability (mA)
Qulescent
current (mA)
Oscillator
frequency (kHz)
L6599A
DIP-16, SO-16N
High-voltage improved
resonant controller
Resonant half-bridge
Yes
8.85 to 16
3.5
0.6 / 0.8
200
L6599AT
DIP-16, SO-16N
High-voltage improved
resonant controller
Resonant half-bridge
Yes
8.85 to 16
3.5
0.6 / 0.8
175
DIP-8, SO-8
Quasi-resonant SMPS
controller
Buck, boost, buck-boost,
flyback
Yes
10.3 to 18
3.5
0.6 / 0.8
175
L6565
Power MOSFETs
Part number
STx3NF06L
VDss
(V)
RDS(on) (max)
(Ω)
Id
(A)
Package
60
0.1
3
SOT-223
STS5NF60L
60
0.055
5
SO-8
STS4DNF60L
60
0.055
4
SO-8 DUAL
STS4NF100
100
0.06
4
SO-8
STx19NF20
200
0.160
15
TO-220/TO-220FP/D2PAK
STx20NF20
200
0.125
18
TO-220/TO-220FP/DPAK
STx16NF25
250
0.235
13
TO-220/TO-220FP/DPAK
STx50NF25
250
0.069
45
TO-220/D2PAK
STx4NK50Z
500
2.7
3
TO-220/TO-220FP/DPAK/IPAK
STx6N52K3
525
1.2
5
TO-220/TO-220FP/DPAK/IPAK
STx7N52K3
525
0.98
6.3
TO-220/TO-220FP/DPAK/IPAK
45
Power MOSFETs (cont’d)
Part number
46
VDss
(V)
RDS(on) (max)
(Ω)
ID
(A)
Package
STx5NK60Z
600
1.6
5
TO-220/TO-220FP/DPAK
STx6NM60N
600
0.92
4.7
TO-220/TO-220FP/DPAK/IPAK
STx3N62K3
620
2.5
2.7
TO-220/TO-220FP/DPAK/IPAK
STx6N52K3
620
1.2
5.5
TO-220/TO-220FP/DPAK/IPAK
STx3NK80Z
800
4.5
2.5
TO-220/TO-220FP/DPAK/IPAK
STx5NK80Z
800
2.4
4.3
TO-220/TO-220FP
STx7NM80
800
0.300
6.5
TO-220/TO-220FP/DPAK/IPAK
STx5N95K3
925
3
3.5
TO-220/TO-220FP/DPAK/IPAK
STx7N95K3
925
1.35
7.2
TO-220/TO-220FP/TO-247
STx13N95K3
925
0.85
9.3
TO-220/TO-220FP/TO-247
Demonstration boards
Sales code
Board
Description
STEVAL-ILL001V1
Dimmable driver for high-brightness power LEDs with VIPer22A (DALI connector)
STEVAL-ILL002V3
High-brightness LED driver with diagnostics (40 LEDs) based on STP08DP05
STEVAL-ILL002V4
High-brightness LED driver with diagnostics (40 LEDs) based on STP08DP05
STEVAL-ILL003V2
High-brightness LED driver without diagnostics (32 LEDs) based on STP16CP05
STEVAL-ILL005V1
VIPer12A offline, constant-current driver for high-intensity LEDs
STEVAL-ILL006V1
VIPer22A offline, constant-current driver for high-intensity LEDs
STEVAL-ILL007V1
High-intensity LED driver for MR-16 format based on L5973D
STEVAL-ILL008V1
LED flashlight demo based on the L6920D
STEVAL-ILL009V3
OSTAR projection module
STEVAL-ILL009V4
OSRAM Dragon LEDs module
STEVAL-ILL009V5
New RGB LED control board based on STP04CM05 and ST1S10
STEVAL-ILL010V1
High-intensity LED dimming driver based on L6902
STEVAL-ILL013V1
80 W offline LED driver with dimming based on L6562A
STEVAL-ILL014V1
Constant-current controller for high-brightness LEDs based on STCS1A
47
Demonstration boards (cont’d)
Sales code
Description
STEVAL-ILL015V1
High-brightness RGB LED array with LED error detection based on the STP24DP05 and STM32
STEVAL-ILL016V2
15 W offline Triac dimmable LED driver based on L6562AD and TSM1052 (USA market - 115 V)
STEVAL-ILL017V1
2 W not-isolated offline constant-current LED driver based on VIPer17HN
STEVAL-ILL018V1
OSRAM Golden Dragon white LED module (LUW W5AM)
STEVAL-ILL018V2
OSRAM Golden Dragon warm white LED module (LCW W5AM)
STEVAL-ILL018V3
OSRAM Golden Dragon amber (red) LED module (LA W55M)
STEVAL-ILL018V4
OSRAM Golden Dragon blue LED module (LB W55M)
STEVAL-ILL019V1*
35 W offline LED driver for 4-channel high-brightness RGB LED based on L6562A
STEVAL-ILL020V1
LCD panel backlight demoboard based on LED7706 (6 rows - 30 mA LED driver with boost converter)
STEVAL-ILL021V1
LCD panel backlight demoboard based on LED7707 (6 rows - 85 mA LED driver with boost converter)
STEVAL-ILL022V1
25 W LED street light with 80 W solar energy charger based on STM32
STEVAL-ILL023V1
High-efficiency switching LED Driver for high-current LEDs based on L6726A
STEVAL-ILL024V1
Mother/slave board for LED display based on STM32 microcontroller
STEVAL-ILL025V1
LED matrix display panel based on STP16DP05
* Available in Q1 2010
48
Board
Sales code
Board
Description
STEVAL-ILL026V1
3 W non-isolated offline LED driver based on VIPer22AS-E
STEVAL-TLL003V1
LED power flash driver based on STCF02
STEVAL-TLL004V1
LED power flash driver based on STCF03
STEVAL-TLL005V1
Power flash Evaluation board based on STCF03 and ST7 MCU (includes the STEVAL-TLL004V1)
STEVAL-TLL006V1
High-power LED driver demo board for single flash with I2C interface based on STCF06
(includes motherboard based on uPSD)
STEVAL-TLL007V1
Power flash demo board based on STCF05 (include motherboard based on uPSD)
EVAL4971
L4971 1.5 A step-down switching regulator evaluation board
EVAL4973
L4973 3.5 A step-down switching regulator evaluation board
EVAL5970D
L5970D up to 1 A step-down swtching regulator evaluation board
EVAL5972D
L5972D up to 2 A step-down switching regulator evaluation board
EVAL5973AD
L5973AD 2 A step-down switching regulator evaluation board
EVAL5973D
L5973D up to 2.5 A step-down switching regulator evaluation board
EVAL5985
Evaluation board for L5985: 2 A step-down switching regulator
EVAL6920D
L6920D 1 V high-efficiency synchronous step-up converter evaluation board
49
Demonstration boards (cont’d)
Sales code
EVAL6920DB1
Description
L6920DB synchronous rectification step-up converter evaluation board
EVAL6926D
L6926 high-efficiency monolithic synchronous step-down regulator evaluation board
EVAL6928D
L6928D high-efficiency monolithic synchronous step-down regulator evaluation board
EVL6562A-35WFLB
EVL6562A-LED*
35 W wide-range high power factor flyback converter using L6562A
Constant current inverse buck LED driver using the L6562A
STEVAL-ISA056V1
6-row, 30 mA LED driver with boost converter for notebook PC LCD-panel backlighting
STEVAL-ISA048V1
1 A/adjustable Vout PWM synchronous step-up DC-DC converter based on ST8R00
STEVAL-ISA044V1
3 A synchronous 900 kHz step-down DC-DC converter with inhibit function
STEVAL-ISA044V2
3 A synchronous 900 kHz step-down DC-DC converter with inhibit function
STEVAL-ISA019V2
80 W ESBT quasi-resonant wide-range SMPS with L6565 for 3-phase application
* Available in Q1 2010
50
Board
51
© STMicroelectronics - October 2009 - Printed in Italy - All rights reserved
The STMicroelectronics corporate logo is a registered trademark of the STMicroelectronics group of companies.
All other names are the property of their respective owners.
Order code: BRLIGHTING1009
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