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HA16666FP - 600kHz PWM Controlled Switching Regulator

General 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 kHz.

Its stanby current is 0.3 mA (max), and it is used as the primary control power supply.

Key Features

  • High-speed switching; tr = 80 ns (15 V amplitude) tf = 40 ns (15 V amplitude).
  • Low power dissipation; 0.3 mA max in standby state 12 mA 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 thresho.

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HA16666P/FP 600kHz PWM Controlled Switching Regulator 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 kHz. Its stanby current is 0.3 mA (max), and it is used as the primary control power supply. Functions • • • • • • • • • +5 V reference voltage circuit Triangular waveform oscillator PWM comparator 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 Comparator 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.