HA16120FP Overview
The HA16114P/FP/FPJ and HA16120FP/FPJ are single-channel PWM switching regulator controller ICs suitable for chopper-type DC/DC converters. Integrated totem-pole output circuits enable these ICs to drive the gate of a power MOSFET directly. The output logic of the HA16120 is designed to control a DC/DC step-up (boost) converter using an N-channel power MOS FET.
HA16120FP Key Features
- 2.5 V voltage reference Sawtooth oscillator (Triangle wave) Overcurrent detection External synchronous input Totem-pole
- Error amplifier
- Vref overvoltage protection (OVP)
- Wide supply voltage range: 3.9 V to 40 V
- Maximum operating frequency: 600 kHz
- Able to drive a power MOS FET (±1 A maximum peak current) by the built-in totem-pole gate predriver circuit
- Can operate in synchronization with an external pulse signal, or with another controller IC
- Pulse-by-pulse overcurrent limiting (OCL)
- Intermittent operation under continuous overcurrent
- Low quiescent current drain when shut off by grounding the ON/OFF pin HA16114: IOFF = 10 µA (max) HA16120: IOFF = 150 µA