
Sony Semiconductor
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.
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