MP4060
TRIAC Dimmable PFC, Primary Side Control
LED Controller for 200-265VAC LEDs
The Future of Analog IC Technology
DESCRIPTION
FEATURES
The MP4060 is a TRIAC-dimmable, primary
side control LED controller enables single stage
AC to DC LED driver with excellent dimming
performance. The dimming control method is
optimized for high input AC voltages ranging
from 200VAC to 265VAC.
•
•
The
MP4060
implements
power-factor
correction and works in boundary-conduction
mode to reduce MOSFET switching losses.
The adaptive dimmer type detection and phasecut-based dimming control achieves good
dimmer compatibility and a deep dimming
range.
The active bleeder control circuit is integrated in
BD pin to simplify the external bleeder design.
The MP4060 has an integrated charging circuit
at the supply pin for fast start-up without a
perceptible delay.
With the unique control of the driver DIM pin,
the MP4060 supports color temperature and
brightness control for warm sunset dimming
application.
The MP4060 has multiple protection features
that greatly enhance system reliability and
safety including output over-voltage protection,
output short-circuit protection, winding shortcircuit protection, integrated thermal foldback,
supply-pin under-voltage lockout, and overtemperature protection. All of the fault
protections feature auto-restart.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Optimized for high line input 200-265VAC
Primary-Side-Control without Requiring a
Secondary-Side Feedback Circuit
Adaptive Dimmer Type Detection and
Phase-Cut-Based Dimming Control
Active Bleeder Control Circuit Integrated
Good Dimmer Compatibility and Deep
Dimming Range
Fast Start-Up without Perceptible Delay
Integrated Thermal Current Foldback to
Prolong the LED Lifetime
Color Temperature and Brightness Control
for Warm Sunset Dimming Application
Accurate Line & Load Regulation
High Power Factor
Operates in Boundary Conduction Mode
Cycle-by-Cycle Current Limit
Winding Short-Circuit Protection
Output Over-Voltage Protection
Output Short-Circuit Protection
Over-Temperature Protection
Available in SOIC-8 / MSOP-10 Packages
APPLICATIONS
•
•
•
Solid-State Lighting up to 50 W
Industrial and Commercial Lighting
Residential Lighting
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.
For MPS green status, please visit the MPS website under Quality
Assurance.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
The MP4060 is available in SOIC-8 / MSOP-10
packages.
MP4060 Rev. 1.0
5/27/2015
www.MonolithicPower.com
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© 2015 MPS. All Rights Reserved.
1
MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
TYPICAL APPLICATION
Non-Isolated Low-Side Buck-Boost LED Driver Solution
Isolated Dual-Channel LED Driver for Warm Sunset Dimming Application
MP4060 Rev. 1.0
5/27/2015
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2
MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
ORDERING INFORMATION
Part Number
MP4060GS*
MP4060GK**
Package
SOIC-8
MSOP-10
Top Marking
See Below
* For Tape & Reel, add suffix –Z (e.g. MP4060GS–Z)
** For Tape & Reel, add suffix –Z (e.g. MP4060GK–Z)
TOP MARKING (SOIC-8)
MP4060: First six digits of the part number
LLLLLLLL: Lot number
MPS : MPS prefix
Y: Year code
WW: Week code
TOP MARKING (MSOP-10)
Y: Year code
W: Week code
LLL: Lot number
M4060: First five digits of the part number
MP4060 Rev. 0.8
www.MonolithicPower.com
5/27/2015
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Preliminary Specifications Subject to Change
© 2015 MPS. All Rights Reserved.
3
MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
PACKAGE REFERENCE
TOP VIEW
TOP VIEW
MULT
1
8
COMP
ZCD
2
7
GND
VCC
3
6
BD
4
5
MULT
1
10
COMP
ZCD
2
9
GND
VCC
3
8
DIM
S
DAMP
4
7
S
D
BD
5
6
D
SOIC-8
MSOP-10
ABSOLUTE MAXIMUM RATINGS (1)
Thermal Resistance
VCC pin voltage ..........................-0.3 V to +30 V
Low-side control MOSFET drain to source
Voltage VDS .................................-0.3 V to +30 V
DAMP voltage .........................-0.3 V to +16.5 V
ZCD current ...............................-5 mA to +5 mA
Other analog inputs and outputs-0.3 V to +6.5 V
Continuous power dissipation
(TA = +25°C)(2)
SOIC-8 ...................................................... 1.3 W
MSOP-10 ................................................ 0.83 W
Lead temperature .....................................260°C
Storage temperature ................ -65°C to +150°C
SOIC-8 ................................... 96 ...... 45... °C/W
MSOP-10 .............................. 150 ..... 65... °C/W
Recommended Operating Conditions
(3)
Supply voltage VCC........................11 V to 27 V
Operating junction temp(TJ). .... -40°C to +125°C
MP4060 Rev. 1.0
5/27/2015
(4)
θJA
θJC
NOTES:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ (MAX), the junction-toambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD (MAX) = (TJ
(MAX)-TA)/θJA. Exceeding the maximum allowable power
dissipation produces an excessive die temperature, causing
the regulator to go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
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4
MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
ELECTRICAL CHARACTERISTICS
Typical values are VCC = 20 V, TJ = 25°C, unless otherwise noted.
Minimum and maximum values are at VC = 20 V, TJ = -40°C to +125°C, unless otherwise noted,
guaranteed by characterization.
Parameter
Supply voltage
Operating range
VCC upper level: Internal
charging circuit stops and IC
turns on
VCC lower level: Internal
charging circuit triggers
VCC Re-charge & IC turn-off
level in fault condition
Supply current
VCC charging current from D
Pull-down current
before start-up
Quiescent current
Quiescent current at fault
Operating current
Multiplier
Linear operation range
Symbol
VCC
Condition
After turn on
Leading-edge dimming
detection low threshold
Leading-edge dimming
detection high threshold
MP4060 Rev. 1.0
5/27/2015
27
V
10.5
V
VCCL
8.55
9
9.45
V
Fault condition
6.7
7.15
7.6
V
VD = 16 V, VCC = 5 V
13
25
40
mA
0.95
1.25
1.8
mA
800
1500
µA
340
620
µA
1
2
mA
VCOMP = 2 V, VMULT = 3 V
0
0.9
0.9
0.9
1.28
1.25
1.24
3
1.6
1.6
1.6
V
1/V
1/V
1/V
VMULT_OFF
VMULT falling edge
0.08
0.1
0.12
V
VMULT_ON
VMULT rising edge
0.26
0.28
0.30
V
28
30
33
%
0.43
0.45
0.47
V
0.22
0.25
0.28
V
0.26
0.28
0.3
V
0.32
0.35
0.38
V
0.08
0.1
0.12
V
0.26
0.28
0.30
V
VCCEN
ID_CHARGE
ICC_PULL_DOWN
IQ
IQ_FAULT
K(5)
Dimming pull-down MOSFET
turn-off threshold
Units
10
VCC = 9 V, rising
No switching, VCC = 15 V
Fault condition, IC latch,
VCC = 15 V
fS = 70 kHz, VCC = 15 V
VCOMP from 1.9 V to 4.9 V
VCOMP = 2 V, VMULT = 0.5 V
Dimming pull-down MOSFET
turn-on threshold
11
Max
9.5
VMULT
TRIAC dimming phase-off
detection threshold
TRIAC dimming phase-on
detection threshold
TRIAC dimming off line-cycle
blanking ratio
Typ
VCCH
ICC
Gain
Min
VCOMP = 2 V, VMULT =1.5 V
DOFF_LEB
VMULT_LD_LOW
Trailing-edge dimmer,
VMULT falling edge
Leading-edge dimmer,
VMULT falling edge
Trailing-edge dimmer,
VMULT rising edge
Leading- edge dimmer,
VMULT rising edge
VMULT rising edge, for
MSOP only
VMULT_LD_HIGH
VMULT rising edge
VMULT_DP_ON_TL
VMULT_DP_ON_LD
VMULT_DP_OFF_TL
VMULT_DP_OFF_LD
220
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MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
ELECTRICAL CHARACTERISTICS (Continued)
Typical values are VCC = 20 V, TJ = 25°C, unless otherwise noted.
Minimum and maximum values are at VCC = 20 V, TJ = -40°C to +125°C, unless otherwise noted,
guaranteed by characterization.
Parameter
Symbol
Condition
VMULT rising edge:
VMULT_PK ≥ 0.58 V;
VMULT falling edge:
VMULT_PK ≥ 0.5 V
VMULT rising edge:
0.58 V > VMULT_PK ≥ 0.53 V;
VMULT falling edge:
0.5 V > VMULT_PK ≥ 0.45 V
VMULT rising edge:
Trailing-edge dimming
detection high threshold
VMULT_TL_HIGH
Min
Typ
Max
Units
0.43
0.45
0.47
V
0.38
0.4
0.42
V
(6)
0.53 V > VMULT_PK ≥ 0.48 V ;
VMULT falling edge:
0.35
V
0.3
V
0.25
V
80
mV
(6)
0.45 V > VMULT_PK ≥ 0.4 V
VMULT rising edge:
(6)
0.48 V > VMULT_PK ≥ 0.43 V ;
VMULT falling edge:
(6)
0.4 V > VMULT_PK ≥ 0.35 V
VMULT rising edge:
(6)
0.43 V > VMULT_PK ≥ 0.38 V ;
VMULT falling edge:
(6)
0.35 V > VMULT_PK ≥ 0.3 V
Trailing-edge dimming
detection high threshold
VMULT_TL_H_HYS
hysteresis
Trailing-edge dimming
VMULT_TL_LOW
detection low threshold
Leading-edge dimmer detection
tLD
time
Leading-edge dimmer detection
tLD_HYS(7)
time hysteresis
Trailing-edge dimmer
tTL
detection time
VMULT falling edge
0.08
0.1
0.12
V
VMULT rising edge
86
100
134
μs
When leading-edge
dimming mode exits
VMULT falling edge
160
μs
388
450
602
μs
0.4
0.414
0.428
V
Error amplifier
Reference voltage
VREF
Transconductance
GEA(7)
COMP lower clamp voltage
130
µA/V
VCOMPL_LD
Leading-edge dimmer
1.83
1.88
1.94
V
VCOMPL_TL
Trailing-edge dimmer
1.53
1.58
1.64
V
VCOMPL_N
Without dimmer
1.53
1.58
1.64
V
Max source current
ICOMP+
57
µA
Max sink current
ICOMP-
-200
µA
Sink current at TRIAC dimming
off
MP4060 Rev. 1.0
5/27/2015
ISINK_DIM_LD
Leading-edge dimmer
-85.5
µA
ISINK_DIM_TL
Trailing-edge dimmer
-155
µA
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MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
ELECTRICAL CHARACTERISTICS (Continued)
Typical values are VCC = 20 V, TJ = 25°C, unless otherwise noted.
Minimum and maximum values are at VCC = 20 V, TJ = -40°C to +125°C, unless otherwise noted,
guaranteed by characterization.
Parameter
Symbol
Condition
Min
Typ
Max
Units
tLEB
350
500
750
ns
tLEB_OCP
260
350
550
ns
VOCP
2.56
2.7
2.86
V
VS_CLAMP_H
1.97
2.07
2.17
V
10
35
90
mV
0.27
0.30
0.33
V
550
590
625
mV
1.9
2.3
3.36
µs
0.95
1.18
1.68
µs
4.9
5.3
5.7
V
1.9
2.3
3.36
µs
0.95
1.18
1.68
µs
tOFF_MIN
4
5.3
8
µs
IDP_DET_LD
13
18
23
μA
VEN_DP_WK_LD
1.13
1.18
1.23
V
tDP_DET_LD
150
215
320
μs
Current sense comparator
Leading-edge blanking time
Over-current protection
Leading-edge blanking time
Over-current protection
threshold
Current sense upper clamp
voltage
Current sense lower clamp
voltage
VS_CLAMP_L
VCOMP = 2.2 V
Zero-current detector
Zero-current detect threshold
VZCD_T
Zero-current detect hysteresis
VZCD_HYS
Zero-current detect LEB
Over-voltage threshold
After turn off
when VMULT_O ≥ 0.25 V
After turn off
when VMULT_O < 0.25 V
VZCD_OVP
OVP detect LEB
tOVP_LEB
Minimum off time
Weak/strong DP mode detector
current
(for leading-edge dimmer)
Weak
DP
mode
enable
threshold
(for leading-edge dimmer)
Weak/strong
DP
mode
detection time
(for leading-edge dimmer)
MP4060 Rev. 1.0
5/27/2015
tZCD_LEB
VZCD falling edge
After turn off
when VMULT_O ≥ 0.25 V
After turn off
when VMULT_O < 0.25 V
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MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
ELECTRICAL CHARACTERISTICS (Continued)
Typical values are VCC = 20 V, TJ = 25°C, unless otherwise noted.
Minimum and maximum values are at VCC = 20 V, TJ = -40°C to +125°C, unless otherwise noted,
guaranteed by characterization.
Parameter
Symbol
Condition
Min
VGS = 0
ID = 100 mA, TJ = 25 °C
I D= 100 mA, TJ = 25 °C,
VCC = VCCEN + 50 mV
30
VGS_D_VCC = 0
30
Typ
Max
Units
Internal control MOSFET
Breakdown voltage
BVDSS
Drain-source on resistance
RDS(ON)
Internal OVP pull-up MOSFET
Breakdown voltage
Continued drain current
BVDSS_D_VCC
ID_D_VCC
Internal dimming pull-down current source
Strong
dimming
pull-down
current
IDP_STRONG_LD
(for leading-edge dimmer)
Weak
dimming
pull-down
current
IDP_WEAK_LD
(for leading-edge dimmer)
Pull-down current
IDP_TL
(for trailing-edge dimmer)
Min clamp ratio of pull-down
IDP_MIN/IDP_TL
current
(for trailing-edge dimmer)
DAMP
Turn-off threshold
VMULT_DAMP_OFF VMULT falling edge
Turn-on threshold
VMULT_DAMP_ON VMULT rising edge
Pull-down current
IDAMP_PULL_DOWN VDAMP = 5 V
Pull-up current
IDAMP_PULL_UP VDAMP = 0.3 V
Upper clamp voltage
VDAMP_CLAMP
Min pull-up voltage
VDAMP_MIN
VCC = VCCEN +50 mV
Internal bleeder disable MOSFET (open-drain output)
IBD = 5 mA
Bleeder
disable
FET
on
RDS(ON)_BD
IBD = 5 mA,
resistance
VCC = VCCEN + 50 mV
MP4060 Rev. 1.0
5/27/2015
250
V
mΩ
250
mΩ
V
10
17
27
mA
27
35
43
mA
8
10
12
mA
133
150
167
mA
13
0.22
0.32
290
70
13
5.5
%
0.25
0.35
370
90
15
0.28
0.38
450
110
16.5
V
V
μA
μA
V
V
60
115
Ω
60
115
Ω
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MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
ELECTRICAL CHARACTERISTICS (Continued)
Typical values are VCC = 20 V, TJ = 25°C, unless otherwise noted.
Minimum and maximum values are at VCC = 20 V, TJ = -40°C to +125°C, unless otherwise noted,
guaranteed by characterization.
Parameter
DIM
Source current
Sink current
Output high level
Output low level
Symbol
Condition
Min
Typ
Max
Units
IDIM_SOURCE
IDIM_SINK
VDIM_HIGH
VDIM_LOW
2
1.5
5.0
3
2.8
4
4
6.1
0.3
mA
mA
V
V
tSTART
100
130
165
µs
Starter
Re-start timer period
Short-circuit detection
Short-circuit detection timer
tSC
In auto-restart mode,
only dimming on time is
counted
60
ms
145
°C
155
°C
25
°C
Thermal protection
Thermal foldback threshold
TSTART(6)
(6)
Thermal shutdown threshold
TSD
Thermal shutdown
hysteresis
THYS(6)
recovery
NOTES:
5) The multiplier output is given by: Vs = K•VMULT• (VCOMP-1.5).
6) Guaranteed by characterization.
7) Guaranteed by design.
MP4060 Rev. 1.0
5/27/2015
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9
MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
TYPICAL CHARACTERISTICS
Reference Voltage vs.
Junction Temperature
0.416
0.4155
VREF (V)
0.415
0.4145
0.414
0.4135
0.413
0.4125
0.412
-50 -25 0
MP4060 Rev. 1.0
5/27/2015
25 50 75 100 125 150
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10
MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
TYPICAL PERFORMANCE CHARACTERISTICS
Conducted EMI L-Line
Conducted EMI N-Line
Radiated EMI
VIN = 230VAC/50Hz, Full Load,
RBW = 9kHz, MT = 20ms
VIN = 230VAC/50Hz, Full Load,
RBW = 9kHz, MT = 20ms
Tested by CDN,
VIN=230VAC/50Hz, Full Load
120
EN55015Q
110
100 kHz
1 MHz
100 kHz
120
EN55015Q
110
10 MHz
SGL
1 PK 100
CLRWR
2 AV 90
CLRWR
TDS
OUTPUT CURRENT (mA)
TTDS
70
70
60
60
6DB
50
60
66DB
EN55015A
40
40
40
30
30
30
20
20
20
10
10
10
0
0
9 kHz
140
120
100
Leading edge
60
40
Trailing edge
20
0 10 20 30 40 50 60 70 80 90
VIN=198-265VAC/50Hz, Full Load
30 MHz
6DB
VIN=198-265VAC/50Hz, Full Load
2.5
80
2
79
1.5
78
1
77
0.5
76
0
75
-0.5
74
-1
73
-1.5
72
-2
71
-2.5
198 208 218 228 238 248 258
VIN (VAC)
300 MHz
Efficiency vs. VIN
VIN=198-265VAC/50Hz,Full load
70
198 208 218 228 238 248 258
VIN (VAC)
THD vs. VIN
VIN=198-265VAC/50Hz, Full load
40
0.95
35
0.90
30
0.85
25
0.80
20
0.75
15
0.70
10
0.65
5
0.60
198 208 218 228 238 248 258
VIN (VAC)
0
198 208 218 228 238 248 258
VIN (VAC)
MP4060 Rev. 1.0
5/27/2015
CDN_QP
0
30 MHz
Line Regulator
PF vs. VIN
TDS
50
40
30 MHz
SGL
1 PK 100
CLRWR
2 AV 90
CLRWR
80
VIN=230VAC/50Hz,Full load,
with different dimmers
160
PF
SSGL
1 PK 100
CLRWR
2 AV 90
CLRWR
Dimming Curve
1.00
110
70
EN55015A
100 MHz
120
80
9 kHz
0
10 MHz
80
5
50
80
1 MHz
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11
MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Steady State
Steady State
Steady State
VIN=230VAC/50Hz, Full Load
VIN=230VAC/50Hz, Full Load
VIN=230VAC/50Hz, Full Load
VMULT
500mV/div.
VMULT
500mV/div.
VMULT
500mV/div.
IOUT
100mA/div.
VCOMP
2V/div.
VZCD
5V/div.
IIN
100mA/div.
VDAMP
20V/div.
VS
500mV/div.
VIN Start Up
VIN=230VAC/50Hz, Full Load
VMULT
500mV/div.
VDAMP
10V/div.
VBD
5V/div.
IOUT
100mA/div.
VBD
100mV/div.
Dimming Performance
Dimming Performance
Max dimming on phase
with leading-edge dimmer
VIN=230VAC/50Hz
Min dimming on phase
with leading-edge dimmer
VIN=230VAC/50Hz
VMULT
500mV/div.
VMULT
500mV/div.
VCOMP
2V/div.
VCOMP
2V/div.
IIN
100mA/div.
VBD
1V/div.
IIN
100mA/div.
Dimming Performance
Dimming Performance
OVP
Max dimming on phase
with trailing-edge dimmer
VIN=230VAC/50Hz
Min dimming on phase
with trailing-edge dimmer
VIN=230VAC/50Hz
LED load open at normal operation
VIN=230VAC/50Hz
VMULT
500mV/div.
VMULT
500mV/div.
VCOMP
2V/div.
VCOMP
2V/div.
IIN
50mA/div.
VDAMP
1V/div.
IIN
50mA/div.
VBD
1V/div.
MP4060 Rev. 1.0
5/27/2015
VCC
20V/div.
VCOMP
1V/div.
VZCD
2V/div.
IOUT
100mA/div.
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12
MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VCC
20V/div.
VCOMP
1V/div.
MP4060 Rev. 1.0
5/27/2015
OVP
Output Short Circuit
LED load open and recovery
VIN=230VAC/50Hz
Short LED+ to LED- and recovery
VIN=230VAC/50Hz
VCC
10V/div.
VZCD
2V/div.
VCOMP
1V/div.
VZCD
500mV/div.
IOUT
100mA/div.
ILED
100mA/div.
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13
MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
PIN FUNCTIONS
Pin #
Pin#
SOIC-8 MSOP-10
1
1
Name
Description
MULT
One of the internal multiplier inputs. Connect MULT to the tap of a
resistor divider from the rectified voltage of the AC line. The half-wave
sinusoid signal on MULT provides a reference signal for the internal
current control loop. MULT is also used for dimmer type detection and
dimming phase detection.
2
2
ZCD
Zero-current detection. A falling edge triggers the internal MOSFET’s
turn-on signal. Connect ZCD to the tap of a resistor divider from the
auxiliary winding to GND. ZCD detects the over-voltage condition. Overvoltage occurs if VZCD exceeds the over-voltage protection (OVP)
threshold (after a blanking time) when the internal MOSFET turns off.
ZCD is also used to select the strong/weak dimming pull-down current
in leading-edge dimming. ZCD detects the output short-circuit condition.
3
3
VCC
Supply voltage. VCC provides the supply power for both the control
signal and the internal MOSFET’s gate driver. Connect VCC to an
external bulk capacitor (22 µF, typically).
4
5
BD
Bleeder disable output. BD integrates a FET. Its open-drain output is
applied to pull down the external active bleeder’s control signal to
disable the bleeder.
D
Internal low-side main MOSFET drain. D is connected to the source
of the external high-side main MOSFET. Also, B is connected internally
to VCC through a diode and a JFET to form an internal charging circuit
for VCC. There is a MOSFET and diode connected in series internally to
pull up D to VCC during a fault condition, which turns off the main switch
reliably. There is an intelligent dimming pull-down current source on D.
Internal low-side main MOSFET source. Connect a resistor from S to
GND to sense the internal MOSFET current. An internal comparator
compares the resulting voltage to the internal sinusoid shaped current
reference signal to determine when the MOSFET turns off. If the voltage
exceeds the upper current-clamp threshold (after the leading-edge
blanking time during the turn-on interval), the gate signal turns off. Overcurrent occurs if Vs exceeds OCP voltage during the gate-on interval
after the OCP leading-edge blanking time.
5
6
6
7
S
7
9
GND
8
10
COMP
--
4
DAMP Gate control pin of the external damping MOSFET.
--
MP4060 Rev. 1.0
5/27/2015
8
DIM
Ground. Current return of the control signal and power signal.
Loop compensation. Connect COMP to a compensation network to
stabilize the LED driver and accurately control the LED driver current.
Gate driver. The DIM signal from the internal control logic. DIM is used
to control the color temperature and brightness for warm sunset
dimming or drive an external dummy Load to enlarge the dimming
depth.
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MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
FUNCTIONAL BLOCK DIAGRAM
N:1
EMI
Filter
MULT
D
Dimmer
Type
Detector
Dimming
Phase
Detector
Gate
Driver
Control
PWM/
PFC
Multiplier
COMP
Current
Sense
Real Current
Calculation
Vref
OTP
OCP
DAMP
Thermal
Foldback
Gate
Driver
Control
S
Current
LImit
Gate
Control
UVLO /
EN
Latch Off
Power
Supply
OVP
VCC
DP
Current
Sources
Gate DIM
Driver
Control
Opto-Coupler
Circuit
GND
BD
BD
Driver
Control
SCP
Zero-Current
Detection
ZCD
Figure 1—MP4060 functional block diagram
MP4060 Rev. 1.0
5/27/2015
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MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
OPERATION
The MP4060 is a TRIAC-dimmable primary-side
control, offline LED controller designed for highperformance LED lighting. The MP4060 controls
accurately the LED current using the real-current
control
method
based
on
primary-side
information. The adaptive dimmer type detection
and phase-cut-based dimming control provide
good dimmer compatibility and a deep dimming
range. Also, it achieves a high power factor to
eliminate noise pollution on the AC line. The
integrated VCC charging circuitry achieves fast
start-up without any perceptible delay. The
integrated thermal current foldback function can
prolong the lifetime of the LED. With a duty ratio
that varies with the dimming cycle, DIM easily
supports color temperature and brightness
control for warm sunset dimming application.
Boundary-Conduction Mode
During the external MOSFET on time (TON), the
rectified input voltage applied on the primary-side
inductor (Lm) makes the primary current through
Lm increase linearly from zero to the peak value
(Ipk). Then, the external MOSFET turns off, the
energy stored in Lm forces the secondary-side
rectifier diode to turn on, and the inductor current
decreases linearly from the peak value to zero.
VD S
VAC line + N V OUT
turn on
VAC line
Ip
Inductor
current
I s/N
Ton
To ff
VZCD
0
Figure 2—Boundary-conduction mode
MP4060 Rev. 1.0
5/27/2015
When the current decreases to zero, the voltage
drop on the main MOSFET drain-to-source falls
and oscillates. The oscillation frequency is
determined by the primary-side inductor and the
combined parasitic capacitances. The resonance
is reflected on the auxiliary winding (see Figure
2).
The zero-current detector generates the external
MOSFET turn-on signal when the ZCD voltage
falls below VZCD_T after a blanking time (tZCD_LEB)
and ensures the MOSFET turns on at a relatively
low voltage (see Figure 3).
Auxiliary Winding
+
Vcc
RZCD1
ZCD
VZCD_T
RZCD2
Figure 3—Zero-current detector
As a result, there are incredibly small primary
switching-on losses and no secondary-diode
reverse-recovery losses. This ensures high
efficiency and low EMI noise.
Real-Current Control
The proprietary real-current–control method
allows the MP4060 to control the secondary-side
LED current based on primary-side information.
The output LED mean current can be calculated
approximately with Equation (1):
Io ≈
N ⋅ VREF
2 ⋅ Rs
(1)
Where:
N is the turn ratio of the primary side to the
secondary side,
VREF is the internal reference voltage (typically
0.414), and
RS is the sense resistor between the internal
MOSFET source and GND.
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MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
Power-Factor Correction
MULT is connected to the tap of a resistor divider
from the rectified instantaneous line voltage,
driving a sinusoidal multiplier output. This signal
provides the reference for the current comparator,
which shapes the primary peak current into a
sinusoid and has the same phase with the input
line voltage. This guarantees a high power factor
(see Figure 4).
capacitor (see Typical Application). D takes over
the VCC power supply at normal operation,
without an auxiliary winding. If any fault occurs,
the system re-starts after the input AC line
powers down/up again.
Multiplier output
Inductor current
Figure 4—Power-factor correction
The multiplier’s maximum output voltage to the
current comparator is clamped to VS_CLAMP_H to
limit the cycle-by-cycle current. The multiplier’s
minimum output voltage is clamped to VS_CLAMP_L
to ensure a turn-on signal during the TRIAC
dimming-off interval, which pulls down the
rectifier input voltage and accurately detects the
dimming phase.
VCC Timing Sequence
The VCC timing sequence is shown in Figure 5.
Initially, VCC is charged through the internal
charging circuit from the AC line. When VCC
reaches VCCH, the internal charging circuit stops
charging, the control logic initializes, and the
internal main MOSFET begins to switch. The
auxiliary winding takes over the power supply.
However, the initial auxiliary winding positive
voltage may not be large enough to charge VCC,
causing VCC to drop. Instead, if the VCC voltage
drops below the VCCL threshold, the internal
charging circuit triggers and charges VCC to
VCCH again. This cycle repeats until the auxiliary
winding voltage is high enough to power VCC
If any fault occurs during this time, the switching
and the internal charging circuit stop, and VCC
drops. When VCC drops below VCCEN, the
internal re-charge is enabled to auto-restart.
Figure 5—VCC timing sequence
Auto Start
The MP4060 contains an auto starter that starts
timing when the MOSFET turns off. If ZCD fails
to send a turn-on signal after tSTART, automatically
the starter sends a turn-on signal to avoid an
unnecessary shutdown.
Minimum off Time
The MP4060 operates with a variable switching
frequency. The frequency changes with the
instantaneous input BUS voltage. In order to limit
the maximum frequency and get good EMI
performance, the MP4060 employs an internal
minimum off-time limiter.
Leading-Edge Blanking
In order to avoid premature switching-pulse
termination due to the parasitic capacitances
discharging when the MOSFET turns on, an
internal leading-edge-blanking (LEB) time is
introduced on S. The current comparator blocks
the input path from S during the blanking time
(see Figure 6)
To simplify the power supply circuitry, an external
charging diode is applied between D (the source
of the external power MOSFET) and the VCC
MP4060 Rev. 1.0
5/27/2015
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MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
Figure 8—ZCD voltage & OVP sampling
Figure 6—Leading-edge blanking
Output Over-Voltage Protection (OVP)
Output over-voltage protection (OVP) prevents
the components from over-voltage damage. The
voltage of the auxiliary winding positive plateau is
proportional to the output voltage, so the OVP
block monitors this auxiliary winding voltage to
apply an OVP function (see Figure 7). Once ZCD
voltage exceeds VZCD_OVP, the OVP signal is
triggered, the gate driver turns off, and the IC
works in quiescent current mode. When the VCC
voltage drops below the UVLO threshold, the IC
shuts down and the system re-starts. The output
OVP set point is calculated with Equation (2):
Vout _ ovp ⋅
Naux
R ZCD2
⋅
= VZCD _ OVP
Nsec R ZCD1 + R ZCD2
Cycle-by-Cycle Current Limit
There is cycle-by-cycle current limit on S. When
the voltage on S reaches VS_CLAMP_H (after a
blanking time), the switching turns off to limit the
peak current value.
Primary Over-Current Protection (OCP)
S has an internally integrated comparator for
primary side OCP. When the gate is on, the
comparator is enabled. Over-current occurs
when VS exceeds VOCP after a blanking time. The
IC shuts down and re-starts after VCC drops
below UVLO. The OCP function block diagram is
shown in Figure 9.
(2)
Where:
VOUT_OVP is the output OVP threshold,
ILm
NAUX is the turns of the auxiliary winding, and
NSEC is the turns of the secondary winding.
D
OCP
latch
VOCP
Gate
S
Rs
tLEB_OCP
Blanking
Figure 9—Over-current protection circuit
LED Short-Circuit Protection (SCP)
When an LED short circuit occurs, the IC reduces
the switching frequency to 7 kHz. The the output
power at this condition is limited within a safe
range.
Figure 7—OVP sampling circuit
To avoid switch-off spikes mis-triggering OVP,
OVP sampling has a tOVP_LEB blanking period (see
Figure 8).
MP4060 Rev. 1.0
5/27/2015
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MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
Thermal Protection
To prevent the IC and the system from any lethal
thermal damage (when the junction temperature
exceeds TSTART), the MP4060 chops the
reference to decrease the output current, which
limits the rising temperature speed of the IC.
Typically, the output current drops to 20 percent
when the IC temperature rises to TSD. Once it
exceeds TSD, the MP4060 shuts down the
switching cycle and is latched until VCC drops
below UVLO. When the junction temperature
drops a recovery hysteresis (THYS), the chip restarts again.
Bleeder Disable
If the external active bleeder is applied to
improve the TRIAC-dimming compatibility, the
MP4060 features a bleeder disable function to
pull down the bleeder transistor by BD. This
improves system efficiency and thermal
performance if the bleeder is useless in certain
conditions. Figure 10 shows the bleeder disable
circuit.
Figure 11—BD timing sequence
Adaptive Dimmer Type Detection
The MP4060 integrates adaptive dimmer type
detection to detect accurately which kind of
dimmer is connected at the system start-up
(leading-edge dimmer, trailing-edge dimmer, or
no dimmer). The MP4060 works in different
modes depending on the dimmer types to
achieve the best dimmer compatibility with the
highest performance.
Phase-Cut-Based Dimming Control
The MP4060 implements phase-cut-based
dimming control (both for leading-edge and
trailing-edge
dimmers).
For
leading-edge
dimmers, most are TRIAC-based. Usually, the
TRIAC dimmer consists of a bi-directional SCR
and an adjustable turn-on phase. Figure 12
shows the leading-edge TRIAC dimmer
waveforms.
Input line
voltage before
TRIAC dimmer
Figure 10—Bleeder disable circuit
The integrated BD FET works in an open-drain
configuration when VCC drops below UVLO or
the active bleeder is activated.
Line voltage
after TRIAC
dimmer
The BD FET is turned on to pull down the
bleeder transistor under the following conditions:
I.
The dimmer is not connected to the driver.
II. The fault (OVP/OCP/OTP) triggers.
III. The system works in auto-restart mode over
tSC. For example, SCP occurs.
The BD timing sequence is shown in Figure 11.
MP4060 Rev. 1.0
5/27/2015
Rectified line
voltage
Dimmer
turn on
phase
Line cycle
Figure 12—Leading-edge dimmer waveforms
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MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
For trailing-edge dimmers, the waveforms are
shown in Figure 13.
decreases slowly to maintain the TRIAC holding
current and avoid random flicker. Figure15 shows
the relationship between the leading-edge
dimming turn-on phase and the output current.
Figure 13—Trailing-edge dimmer waveforms
The MP4060 detects the dimming turn-on cycle
through MULT. Based on the turn-on cycle, the
control circuitry adjusts the internal reference
voltage. MULT voltage exceeding VMULT_ON is
recognized as a dimmer turn-on signal. MULT
voltage below VMULT_OFF is recognized as a
dimmer turn-off signal. The MP4060 has a 30
percent line-cycle-detection blanking time at each
line cycle. The real phase detector output is
added to this blanking time to determine the
reference voltage. If it is higher than 100 percent,
the reference voltage is clamped to 100 percent
(see Figure 14). This means if the turn-on cycle
exceeds 70 percent of the line cycle, the
reference maintains the maximum value, which
means the maximum output current with different
dimmers is almost the same as the rated output
current.
Figure 15—Leading-edge dimming curve
For a trailing-edge dimmer, there is no holding
current. The COMP voltage is clamped at a lower
level (VCOML_TL) to get a deeper dimming depth.
Figure 16 shows the relationship between the
trailing-edge dimming turn-on phase and the
output current.
Figure 16:—Trailing-edge dimming curve
Dimming Pull-Down Current Source
Figure14—Dimming turn-on cycle detector
The internal reference voltage decreases when
the turn-on cycle decreases to less than 70
percent of the line cycle, lowering the output
current. As the dimming turn-on cycle decreases,
the COMP voltage decreases. For a leadingedge dimmer, once the COMP voltage reaches
VCOMPL_LD, it is clamped. The output current
MP4060 Rev. 1.0
5/27/2015
There are three kinds of dimming pull-down
current sources in MP4060. The IDP_TL current
source is for trailing-edge dimming, the other two
(weak/strong) current sources are for leadingedge dimming. The dimming pull-down current is
used to pull down the rectified line voltage to zero
quickly to avoid a mis-detection on MULT.
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MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
If the leading-edge dimmer is detected, the
dimming pull-down current source turns on when
MULT decreases to VMULT_DP_ON_LD, and it turns off
when MULT increases to VMULT_DP_OFF_LD. If the
trailing-edge dimmer is detected, the dimming
pull-down current source turns on when MULT
decreases to VMULT_DP_ON_TL, and it turns off when
MULT increases to VMULT_DP_OFF_TL.
Color Temperature and Brightness Control
for Warm Sunset Dimming application
The color temperature and brightness control
circuit is shown in Figure 18.
The weak/strong dimming pull-down current
sources
are
selected
through
different
resistances on ZCD. Figure 17 shows the
selected logic:
If IDP_DET_LD *(R1+R2//R3) ≥ VEN_DP_STR_LD, a
strong dimming pull-down current source is
selected; otherwise, a weak dimming pull-down
current source is selected.
In real application design, the weak/strong
dimming pull-down current selection is related to
the detailed application SPEC.
Figure 18—Color temperature and brightness
control circuit
DIM of MP4060 outputs a driving signal for the
external MOSFET. The DIM control logic is
shown in Figure 19.
Figure 17—Weak/strong dimming pull-down
current source selection
Damping Circuit Control
If a leading-edge dimmer or trailing-edge dimmer
is detected, the damping circuit is enabled to limit
the inrush current the moment the dimmer turns
on. If no dimmer is detected, the damping circuit
is disabled by pulling up the damp pin voltage, so
the damping resister is shorted by the damping
MOSFET. The damp pin voltage is pulled up if
MULT
voltage
increases
higher
than
VMULT_DAMP_ON. It is pulled down when MULT
voltage decreases lower than VMULT_DAMP_OFF. The
maximum pull-up current source is 100 μA while
the maximum pull-down current source is 400 μA.
MP4060 Rev. 1.0
5/27/2015
Figure 19—DIM signal logic
The DIM turn-on signal is the compliment signal
of the dimming turn-on signal. This means the
longer the dimming turn-on cycle, the smaller the
DIM turn-on cycle. The DIM stays low and the
output current flows only through the 1st LED
string when the dimming turn-on cycle is greater
than 70 percent. As the dimming turn-on cycle
decreases, the DIM turn-on duty cycle
proportionally increases the current in the 2nd
LED string. The total current through the 1st string
and the 2nd string remains constant. This current
balance achieves color temperature and
brightness control. The maximum current through
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21
MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
the 2nd string is adjusted by changing the
resistance of Ra.
Dimming Depth Enlargement
Driving a MOSFET to pull down a resistor from
the auxiliary winding to GND forms a dummy
load, which helps distribute the output current.
DIM working timing means a shorter the dimming
duty cycle results in a higher dummy load
distribution current. This method enlarges the
dimming depth. The dimming depth enlargement
circuit is shown in Figure 20.
Figure 20—Dimming depth enlargement circuit
MP4060 Rev. 1.0
5/27/2015
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22
MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
TYPICAL APPLICATION CIRCUITS
L1
3mH
D4
1
2
2
1
LED-
C11
NS
C5
470nF
25V
Q1
ISU04N65A
650V/4A
1
D2
2
2
2
T1
EE13
Lm=1.56mH
R8
249k/1%
U1
3
4
10
GND
VCC
DIM
9
R9
68.1k/1%
2
COMP
ZCD
C6
2.2uF/10V
DAMP
S
BD
D
8
test point
7
6
1
MP4060GK
C4
22uF/50V
2
1
2
5
C10
10nF
50V
MULT
1
2
1
C3
3.3nF
50V
2
1
R4
4.02k/1%
Input
200~240VAC/50Hz
2
1
DSF1J
600V/1A
R2
51
1W
54Ts
LED+
C9
10nF/630V
1206
R16
20
1206
1N4148WS/75V/0.15A
R15
11.3k
TVR07431
FR1
39
1W
Output
72V/125mA
D8
2
R11
20/1%/1206
RV1
1
R5
1M/0.25W
2
ES1J
600V/1A
SMA
1
R6
30/0805
2
R18
NS
3
R17
0
1206
2
Q3
NS
1
1
D1
RLZ TE-11 18D
16.82V/10mA
2
D6
S1JL
600V/1A
2
1
1
3
1
2
D5
S1JL
600V/1A
2
C7
330uF/80V
D3
R3
1M/1%
0.25W
2
R13
510
1W
2
1
1
182Ts
4
2
1
C1
R14 100nF/450V
2k
C2
100nF
450V
3
Q2
3DD13001
400V/0.2A
1
D7
1N4148W
75V/0.15A
1
3
2
4
1
R10
100k
1206
5
C8
220nF/450V
1
R12
6.8k/1W
BD1
MB6S
600V/0.5A
2
3
S1JL
600V/1A
R7
2/1%
0805
R1
6.8/1%
0805
Figure 21—A19 bulb driver, 200 VAC-240 VAC/50 Hz input, VO = 72 V, IO = 125 mA, buck-boost converter,
high-performance. EVB model: EV4060-K-00A
MP4060 Rev. 1.0
5/27/2015
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MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
PACKAGE INFORMATION
SOIC-8
0.189(4.80)
0.197(5.00)
8
0.050(1.27)
0.024(0.61)
5
0.063(1.60)
0.150(3.80)
0.157(4.00)
PIN 1 ID
1
0.228(5.80)
0.244(6.20)
0.213(5.40)
4
TOP VIEW
RECOMMENDED LAND PATTERN
0.053(1.35)
0.069(1.75)
SEATING PLANE
0.004(0.10)
0.010(0.25)
0.013(0.33)
0.020(0.51)
0.0075(0.19)
0.0098(0.25)
SEE DETAIL "A"
0.050(1.27)
BSC
SIDE VIEW
FRONT VIEW
0.010(0.25)
x 45o
0.020(0.50)
GAUGE PLANE
0.010(0.25) BSC
0o-8o
0.016(0.41)
0.050(1.27)
DETAIL "A"
MP4060 Rev. 1.0
5/27/2015
NOTE:
1) CONTROL DIMENSION IS IN INCHES. DIMENSION IN
BRACKET IS IN MILLIMETERS.
2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH,
PROTRUSIONS OR GATE BURRS.
3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH
OR PROTRUSIONS.
4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING)
SHALL BE 0.004" INCHES MAX.
5) DRAWING CONFORMS TO JEDEC MS-012, VARIATION AA.
6) DRAWING IS NOT TO SCALE.
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MP4060—TRIAC Dimmable PFC, PSC LED Controller for 200-265VAC LEDs
MSOP-10
NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third
party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not
assume any legal responsibility for any said applications.
MP4060 Rev. 1.0
5/27/2015
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