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VPC2188B

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VPSC AC-DC Controllers And Regulators, MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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VPC2188B

VPSC · AC-DC Controllers And Regulators · MSOP-10

VPC2188B from VPSC, in a MSOP-10. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 COM bidirectional Optocoupler feedback pin in SSR mode that sets the regulated peak current and frequency, with internal RC compensation for direct optocoupler connection, open-circuit voltage 5.0-5.8V and short-circuit current 0.6-1.5mA.
2 VIN power_in High-voltage startup input; the VIN-to-VDD high-voltage LDO regulates VDD to 8.7V and supplies up to 20mA, with a 110V absolute maximum rating on VIN to GND.
3 UVP input Input undervoltage comparator pin with a 2.0V threshold that sinks 4.4uA when in protection and sets the hysteresis through its pull-up resistor, clamped at 5.5V typical.
4 VDD power_in Chip supply pin with an 18.6V clamp, where clamp sink current above 6.6mA triggers self-recovering overvoltage protection, and an absolute maximum rating of 25V.
5 GATE output Drive output for the external MOSFET, rated 0.8A peak source and 1.5A peak sink at VGATE=7.5V, with an absolute maximum voltage of 25V to GND.
6 GND power_in Chip power reference ground for the controller.
7 CS input Current-sense input with a 500mV maximum current-limit threshold for VPC2188B, where CS above 1.6 times the maximum threshold triggers self-recovering short-circuit protection and an absolute maximum of 1.25V applies.
8 RT passive Frequency-programming pin where a resistor to GND sets the oscillator frequency, with a 2.02V typical reference and 300kHz typical at RT=22kΩ.
9 SS passive External soft-start pin where a capacitor to GND sets the soft-start time, and the internal soft-start time is 1.2ms typical when the pin is left open.
10 FB input Voltage feedback pin for PSR or resistor-divider sensing, auto-selected when FB goes negative while GATE is high or COM is tied to GND, with an absolute maximum input current of 2.5mA.

Key specifications

Parameter Value
Manufacturer VPSC
Package MSOP-10
Category Power Management (PMIC)
Pins 10

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
VIN voltage to GND VIN -0.3 110 V 3
VIN clamp continuous current IVIN(CLAMP) 1 mA 3
FB pin current IFB -2.5 mA 3
VDD and GATE voltage to GND VDD -0.3 25 V 3
CS voltage to GND CS -0.3 1.25 V 3
All other pins voltage to GND -0.3 6.6 V 3
Maximum operating junction temperature TJMAX 150 ℃ 3
ESD capability, human body model V(ESD) HBM -2000 2000 V per ESDA/JEDEC JS-001-2017, 1 pulse 3
ESD capability, charged device model V(ESD) CDM -1000 1000 V per ESDA/JEDEC JS-002-2014 3
VIN input voltage VIN 4 100 V 3
Operating junction temperature TJ -40 125 ℃ 3
Normal operating current IQ 2 3 mA GATE floating, COM connected to GND via 3.3k 3
VIN supply capability IVIN(SRC) 15 20 mA VIN=12V, VDD=6.5V 3
VIN ESD clamp voltage VIN(clamp) 110 118 128 V IVIN=1mA, VDD=12V 3
VDD start-up voltage (rising) VDD(ON) 6.9 7.4 7.9 V VDD rising 3
VDD lock-out voltage (falling) VDD(OFF) 5.8 6.3 6.8 V VDD falling 3
VIN to VDD regulated voltage VDD(REG) 8.1 8.7 9.3 V VDD and GATE unloaded 3
VIN to VDD dropout voltage VDD(DO) 1.2 V IVDD(LOAD)=5mA, VIN=8V 3
VDD overvoltage protection threshold VDD(OVP) 17.5 18.6 19.7 V VDD rising 4
VDD ESD clamp voltage VDD(clamp) 23 27 V IVDD(SNK)=10mA 4
Current limit threshold voltage VCS(LIM) 450 500 550 mV 4
Minimum threshold voltage VCS(MIN) 90 100 110 mV PSR feedback mode 4
Short-circuit protection threshold VSCP(LIM) 720 800 880 mV VCOM exceeds VCOM(OLP) 4
SS pin open-circuit voltage VSS(OPEN) 5 5.4 5.8 V CLK floating (as printed) 4
Internal soft-start time tSS(IN) 0.8 1.2 1.6 mS SS floating 4
External soft-start current ISS 22 28 34 uA 4
Oscillator frequency FOSC1 135 150 165 kHz RT=44.2kΩ 4
Oscillator frequency FOSC2 270 300 330 kHz RT=22kΩ 4
Oscillator frequency FOSC3 440 500 560 kHz RT=13.3kΩ 4
RT pin reference voltage VRT 1.92 2.02 2.12 V 4
UVP comparison threshold voltage VREF(UVP) 1.9 2 2.1 V 4
UVP pin clamp voltage VUVP(CLAMP) 5 5.5 6 V IUVP=0.6mA injected into UVP pin 4
UVP pull-down current after protection IUVP(SNK) 3.4 4.4 5.4 uA VUVP=1.8V 4
EA reference voltage VREF(REG) 1.975 2 2.025 V 4
Maximum duty cycle DMAX 75 80 85 % 4
COM pin open-circuit voltage VCOM(OPEN) 5 5.4 5.8 V 5
COM pin short-circuit current ICOM 0.6 1.1 1.5 mA VCOM=0V 5
GATE high-level drop (VDD-VGATE) with source load VGATEH 185 400 mV IGATE=50mA 5
GATE low-level voltage with 100mA pull-up VGATEH 170 350 mV IGATE=-100mA 5
Overtemperature protection threshold TSHDN 148 163 178 ℃ 5
Enable-off input current IVIN(SHDN) 0.1 uA VUVP=0V 3
UVP-protected input current IVIN(UVP) 294 uA VUVP=1.8V 3
VBV(DIODE) anti-backflow diode voltage rating VBV(DIODE) 37 V 4
VDD OVP sink current IDDSNK(OVP) 6.6 mA VDD=VDD(OVP) 4
Current-limit comparator delay tCS(DLY) 40 nS CS from 0 to 0.6V to GATE low 4
UVP enable LDO threshold (rising) VUVP(ON) 0.9 V VUVP rising 4
UVP disable LDO threshold (falling) VUVP(OFF) 0.6 V VUVP falling 4
FB pin input current as feedback IFB 40 nA FB pin used as feedback voltage 4
COM pin input current as feedback IFB -20 uA COM pin used as feedback voltage 4
Sampling delay time TD(SAMP) 252 nS RT=22kΩ 4
Sleep time in self-recovery protection TSLEEP(SR) 800 mS 4
PWM comparator blanking time tLEB(CS) 95 nS 4
COM voltage at maximum duty cycle VCOM(DMAX) 3.75 V 5
Burst-mode threshold voltage VCOM(SKIP) 1 V 5
Burst-mode hysteresis voltage VCOM(HYS) 55 mV 5
GATE peak source current IGATE(SRC) 0.8 A VGATE=7.5V 5
GATE peak sink current IGATE(SINK) 1.5 A VGATE=7.5V 5
GATE rise time tr 16 nS GATE to GND with 1nF 5
GATE fall time tf 8 nS GATE to GND with 1nF 5
Overtemperature protection hysteresis TSHDN(HYS) 18 ℃ 5

CAD (KiCad official)

  • Symbol: VPC2188B
  • Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
  • 3D model: MSOP-10 (KiCad packages3D, STEP)
  • 3D model files: vpc2188b-etched.step / vpc2188b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); vpc2188b.step / vpc2188b.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: VPSC datasheet (15 pp, sha256 602d834347f7366b, retrieved 2026-10-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF