DESCRIPTION

The L6232E is a triple half bridge driver intended for use in brushless DC motor applications. This part can be used to form the power stage of a three-phase, brushless DC motor control loop, and is especially useful for disk drive applications.

Power drivers are Integrated DMOS transistors and feature fast recirculating diodes as an integral part of their structure. The logic inputs are TTL level compatible, with internal pull-up, allowing interfacing to open collector outputs. All necessary circuitry to perform PWM and linear motor speed control is included. A central charge pump is util ized to drive the upper DMOS transistors, and also to power the braking function. The L6232E is packaged in PLCC28.

■ 1.5A MAXIMUM PEAK CURRENT

■ CONTROLLED SLEW RATE

■ CENTRAL CHARGE PUMP

■ PWM AND LINEAR MODES

■ CUTOFF TIME USER CONFIGURABLE

■ FAST, FREE-WHEELING DIODES ON CHIP

■ OVER-TEMPERATURE PROTECTION

■ BRAKE FUNCTION INPUT