FA5511N

FA551X series FA5510P (N), FA5511P (N) FA5514P (N), FA5515P (N) ■ Description The FA551X series are the PWM type switching power supply control ICs that can directly drive power MOSFET. These ICs use a CMOS device with high dielectric strength (30V) to implement low power consumption. These ICs contain many function in a small 8-pin package. With these ICs, a highperformance and compact power supply can be created because not many external discrete components are needed. CMOS IC For Switching Power Supply Control FA551X ■ Dimensions, mm SOP-8 8 5 1 4.9 4 +0.1 –0.05 6.0±0.2 3.9 ■ Features Low current consumption by CMOS process with high dielectric strength (30V) Standby current of 2µA or less (at Vcc=14V), and operating current of 1.5mA (typ) Overvoltage protection function detecting the Vcc voltage A drive circuit for connecting a power MOSFET directly Output peak current: ±1.5A Pulse-by-pulse overcurrent limiting function Overload protection function (latch or non-latch mode selectable) Output ON-OFF function by external signal Latch-mode overvoltage shutdown function Undervoltage lockout function (16.5V ON / 9V OFF) Reference voltage output (5V) 8-pin package (DIP/SOP) 0.4±0.1 1.27 DIP-8 8 5 1 9.3 4 1.5±0.3 6.4 3.0min 4.5max 3.3 0~8° ■ Block diagram FA5510P (N), FA5511P (N) CS(8) REF (7) 5V VCC ENB 5V REF 8.5V/7.9V 0.8V 3.5V ENB 4V PWM Dmax FA5510: 46% FA5511: 70% OSC RT CT OUT PUT 0.8V/0.68V 5.2µA 0.95mA 15.5V 15.5V UVLO 0.05 0.2...