onsemi NCP4331
The NCP4331 houses a dual MOSFET driver intended to be used as a companion chip in ac-dc or dc-dc multi-output post regulated power supplies.FEATURES
●ăHigh Gate Drive Capability●ăBootstrap for N-MOSFET High-Side Drive
●ăTwo Embedded Error Amplifiers Allowing Constant Current Constant Voltage (CCCV) Operation
●ă±1.5% Regulation Voltage Reference Over 0°C to 85°C Temperature Range
●ăProgrammable Soft-Start
●ăThermal Shutdown for Overtemperature Protection
●ăPWM Operation Synchronized to the Converter Frequency
●ăOver-Lap Management for Soft Switching
●ăInternal Regulator to Ease the Circuit Feeding
●ăUndervoltage Detection
●ăThese are Pb-Free Devices Typical
APPLICATIONS
●ăOff-line Switch Mode Power Supplies●ăPower Dc-dc Converters
●ăEfficient Alternative to Mag-Amp Post-Regulators MARKING DIAGRAMS 16 1 SO-16 D SUFFIX CASE 751B 16 NCP4331G ALYYWW 1 16 16 NCP 1 TSSOP-16 DB SUFFIX CASE 948F 4331 ALYWG G 1 A = Assembly Location L = Wafer Lot YY = Year WW = Work Week G or G = Pb-Free Package (Note: Microdot may be in either location) PIN CONNECTIONS CSout 1 CSin- 2 CSin+ 3 UVP/STDWN 4 COMP 5 FB 6 SS/Dmax 7 Cramp 8 16 VCC 15 BS...