描述 Description

CXA2534Q is a 4-channel H-bridge motor driver IC designed for portable CD systems. It has a built-in DC to DC converter controller that allows voltage step-up to typically 3.2 V; this voltage can be used to power the system DSP, SSP and micro-controller. In addition, it also provides a PWM regulated power supply to the H-bridge output stage so as to ensure high efficiency.

特性 Features

? 4 channels of H-bridge drivers

? PWM regulated power supply for H-bridge output stages

? Step-up DC to DC converter controller for system power supply

? Start and off controls with soft start capability

? Reset pulse

? Short circuit protect

? Over-voltage protect

? Low battery voltage detection

? Rechargeable battery charger

? General purpose operational amplifier

? Thermal shut-down for battery charger and Hbridge driver (170 °C/140 °C)

? Direct interface with wired remote controller possible

Applications

Portable CD player