HA16666FP Datasheet | Hitachi Semiconductor

Description The HA16666P/FP is a voltage mode PWM (pulse width modulation) control IC for switching regulator control. It can drive a power MOS FET efficiently on 600 k Hz. Its stanby current is 0.3 m A (max), and it is used as the primary control power supply. Functions - - - - - - - - - +5 V reference voltage circuit Triangular waveform oscillator PWM parator Output circuit (Totem pole output) Overcurrent protection circuit (with one-pulselatch mode) Undervoltage lockout protectoin circuit Soft start and quick shutdown function Remote control function parator with internal 1.3 V reference voltage Features - High-speed switching; tr = 80 ns (15 V amplitude) tf = 40 ns (15 V amplitude) - Low power dissipation; 0.3 m A max in standby state 12 m A max in operation state (V IN = 15 V) - Dual-slope highly accurate dead-band duty setup circuit; Setup accuracy Du = ±3% (max) - Wide output pulse width control range; 0 to 75% HA16666P/FP - Undervoltage lockout protection; VIN high threshold voltage 10 V typ VIN low threshold voltage 8 V typ - Two input threshold voltage for overcurrent protection cmparator; fixed voltage (1.3 V) variable voltage - Double pulse output protection by overcurrent protection circuit with one-pulse latch mode - Wide input supply voltage range; VCC = 11 to 40 V Ordering Information Type HA16666P HA16666FP Package DP-16 FP-16DA HA16666P/FP Pin Arrangement E/I ST CT RT1 RT2 OSC Out GND N.C 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 N.INV + INV - CS Vref VIN RM OUT N.C (Top View) Pin Functions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol E/I ST CT RT1 RT2 OSC Out GND N.C N.C OUT RM VIN Vref CS INV - + Descreption Error input Soft start Timing capacitance Timing resistor (rise section) Timing resistor (fall section) Triangular waveform oscillator Ground No connect No connect Pulse output Remote control Power supply voltage Reference voltage (5 V) output parator input (- ) with reference voltage (1.3 V) parator input (- ) for overcurrent...