HA16116FPJ Datasheet PDF - Renesas Electronics

●Description

●HA16116FP/FPJ and HA16121FP/FPJ are dual-channel PWM switching regulator controller ICs for use in

●chopper-type DC/DC converters.

●This IC series incorporates totem pole gate drive circuits to allow direct driving of a power MOS FET. The output logic is preset for booster, step-down, or inverting control in a DC/DC converter. This logic assumes use of an N-channel power MOS FET for booster control, and a P-channel power MOS FET for step-down or inverting control.

●Features

●•  Wide operating supply voltage range

● (3.9 V to 40.0 V)

●•  Wide operating frequency range (600 kHz maximum operation)

●•  Direct power MOS FET driving (output current ±1 A peak in maximum rating)

●•  Pulse-by-pulse overcurrent protection circuit with intermittent operation function (When overcurrent state continues beyond time set in timer, the IC operates intermittently to prevent excessive output current.)

●•  Grounding the ON/OFFpin turns the IC off, saving power dissipation. (HA16116: IOFF = 10 µA max.; HA16121: IOFF = 150 µA max.)

●•  Built-in UVL circuit (UVL voltage can be varied with external resistance.)

●•  Built-in soft start and quick shutoff functions

●Note: The reference voltage 2.5 V is under the condition of VIN ≥4.5 V.

●Functions

●•  2.5 V reference voltage (Vref) regulator

●•  Triangle wave form oscillator

●•  Dual overcurrent detector

●•  Dual totem pole output driver

●•  UVL (under voltage lock out) system

●•  Dual error amplifier

●•  Vref overvoltage detector

●•  Dual PWM comparator