HA17451AFP - Switching Regulator Controllers for DC/DC Converters

Product Overview

Hitachi Semiconductor

Part number	HA17451AFP
Manufacturer	Hitachi Semiconductor
File Size	83.29 KB
Description	Switching Regulator Controllers for DC/DC Converters
Datasheet	HA17451AFP Datasheet
Additional preview pages of the HA17451AFP datasheet.

The HA17451 is a dual-channel switching regulator controller IC.

Each channel contains the basic circuits for controlling a PWM-type switching-regulator power supply.

Both channels are integrated onto the same chip.

Low dropout voltage of on-chip 2.5V voltage reference: Vdrop = 0.2 V (typ) Operates throughout wide supply voltagerange: 3.3 V to 40 V Large maximum output current: 50 mA (max) Undervoltage lockout circuit High threshold voltage: 3.15 V (typ) Low threshold voltage: 2.98 V (typ) Low current drain: 1.5 mA (typ) Operates at wide range of oscillator frequencies: f OSC = 1 kHz to 300 kHz Dead time adjustable through full duty cycle range Surface-mount package (.

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Published: Mar 22, 2005 |