A8932CLWA Datasheet - Allegro MicroSystems

A8932CLWA VOICE-COIL MOTOR DRIVER

Current Amplifier. T.

8932-A RET REF V FLT V BEMF GROUND UV SET R OUT P OUT SWITCH IN N OUT SW RETRACT FAULT MP RESET SIGNAL SUPPLY 1 2 3 4 5 6 7 8 28 27 RET SET V SENS V LOAD V SENS FB SGND N OUTP LOAD SUPPLY OUT N SGND P ACT FB PWR OFF H GAIN REFERENCE ACT VOICE-COIL MOTOR DRIVER Providing control and drive of the voice-coil motor used for head positioning in 5 V disk drive applications, the second-generation A8932CLWA is a full-bridge driver that can be configured so that its output current is a direct function o.

A8932CLWA Features

* I I I I I I I I I I I Class-B, 2 Ω rDS(on) at 500 mA Output Lossless Current Sensing Zero Current-Loop Deadband High Transconductance Bandwidth User-Adjustable Transconductance Gain Digital Transconductance Gain Switch (4:1 Ratio) 5 Volt Monitor with Selectable UV Trip Point Retract Circuitry Functi

A8932CLWA_AllegroMicroSystems.pdf