MP023
Primary Side CC/CV Flyback Controller with
High Voltage Current Source and
Programmable Cable Compensation
The Future of Analog IC Technology
DESCRIPTION
The MP023 is an offline, primary-side controller
that provides accurate, constant voltage and
constant current regulation without the need of
an optocoupler or secondary feedback circuit. It
uses an integrated 700V current source to
achieve quick start-up.
The MP023's variable off-time control allows its
flyback converter to operate in discontinuous
conduction mode (DCM). The MP023’s current
limit and maximum secondary duty cycle are
programmable, making the output current easily
set. The FB voltage sensing point is also
programmable and is able to set different
switching frequencies.
The internal high-voltage start-up current
source and power-saving technologies limit the
no-load power consumption to less than 30mW.
Full protection features include VCC undervoltage lockout (UVLO), overload protection
(OLP), over-temperature protection (OTP),
open loop protection (OCkP), and over-voltage
protection (OVP).
The MP023's variable switching frequency
method provides a natural spectrum for shaping
a smooth EMI signature, which is suitable for
offline, low-power battery chargers and
adapters.
FEATURES
Primary-Side Control without Optocoupler or
Secondary Feedback Circuit
Precise Constant Current and Constant
Voltage Control (CC/CV)
Variable Off-Time Peak Current Control
700V High-Voltage Current Source
20mW No-Load Power Consumption
Programmable Cable Compensation
Programmable Current Limit and Maximum
Secondary Duty Cycle
Programmable FB Voltage Sensing Point
Multiple Protection Features: OVP, OCkP,
OLP, OTP, VCC UVLO
Low Cost and Simple External Circuit
Available in a SOIC8-7A Package
APPLICATIONS
Appliance Power Supplies
Adapters for Handheld Electronics
Standby and Auxiliary Power Supplies
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 MP023 requires a minimal number of
readily
available,
standard,
external
components and is available in a SOIC8-7A
package.
MP023 Rev. 1.1
7/18/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
1
MP023 – PRIMARY-SIDE CC/CV CONTROLLER
TYPICAL APPLICATION
MP023 Rev. 1.1
7/18/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
2
MP023 – PRIMARY-SIDE CC/CV CONTROLLER
ORDERING INFORMATION
Part Number*
MP023GS
Package
SOIC8-7A
Top Marking
See Below
* For Tape & Reel, add suffix –Z (e.g. MP023GS–Z)
TOP MARKING
MP023: first five digits of the part number;
LLLLLLLL: lot number;
MPS: MPS prefix:
Y: year code;
WW: week code:
PACKAGE REFERENCE
SOIC8-7A
MP023 Rev. 1.1
7/18/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
3
MP023 – PRIMARY-SIDE CC/CV CONTROLLER
ABSOLUTE MAXIMUM RATINGS (1)
HV to GND....................................-0.3V to 700V
VCC to GND…………………..…….-0.3V to 28V
DRV to GND....................................-0.3V to 15V
CP, CS to GND……………………....-0.3V to 7V
FB……………………………………...-0.7V to 7V
(2)
Maximum power dissipation ….…………1.3W
Junction temperature……….……………..150°C
Lead temperature………….………………260°C
Storage temperature……….….-60°C to +150°C
ESD capability human body mode…..……2.0kV
ESD capability machine mode……….…….200V
Recommended Operating Conditions
(3)
Thermal Resistance
(4)
θJA
θJC
SOIC8-7A………………………96 ...... 45... °C/W
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.
Junction temp. (TJ)……………...-40°C to +125°C
Operating VCC range……..…………10V to 25V
MP023 Rev. 1.1
7/18/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
4
MP023 – PRIMARY-SIDE CC/CV CONTROLLER
ELECTRICAL CHARACTERISTICS
VCC = 15V, TJ = -40℃~125℃, unless otherwise noted.
Parameter
Symbol Condition
Supply Voltage Management (VCC Pin)
VCC ON threshold
VCCH
VCC OFF threshold
VCCL
Operating current
IOP
High Voltage Current Source (HV Pin)
Break-down voltage
VBRDSS
Supply current from HV pin
Leakage current from HV pin
Ileak
Driving (Drv Pin)
Driver voltage high level
VHigh
Driver voltage clamp level
VClamp
Driver voltage low level
VLow
Driver voltage rise time
tR
Driver voltage fall time
tF
Maximum ON time
tONmax
Minimum switching frequency
fS-min
Current Sense (CS Pin)
VLimit-Max
Current limit
VLimit-Min
fs to start the current fold back
fS-H
fs to end the current fold back
fS-L
Propagation delay to Drv
tPD
Leading edge blanking
tLEB
Feedback input (FB Pin)
FB pin input current
FB reference voltage
OLP threshold at sampled FB(5)
OLP counter(1)
FB sampling duration
FB maximum sampling time
MP023 Rev. 1.1
7/18/2016
IFB
Typ
Max
Units
18.8
8.2
19.4
8.7
245
1
20.0
9.2
300
1.3
V
V
μA
mA
2.6
10
V
mA
µA
fS-min, CL=1nF
fs = 40kHz, CL=1nF
700
1.8
2.2
CL=1nF VCC=9.5V
CL=1nF, VCC=24V
CL=1nF, VCC=24V
CL=1nF
CL=1nF
VCS=0V
7.2
12
7.8
13.4
fS >= fS-H
fS
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