L6232E 查看數據表（PDF） - STMicroelectronics

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L6232E

SPINDLE DRIVER

STMicroelectronics 

L6232E

SPINDLE DRIVER

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

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

BLOCK DIAGRAM

PLCC21+7

ORDERING NUMBER: L6232E

part of their structure. The logic inputs are TTL-

level compatible, with internal pull-up, allowing in-

terfacing 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.

October 1996

1/10

This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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