A3924 datasheet(45/55 Pages) ALLEGRO

45 / 55 page

Automotive, Full-Bridge MOSFET Driver

A3924

Allegro MicroSystems, LLC

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

10: Mask 0

V3O

V3U

VBS

BHU

BLU

AHU

ALU

11: Mask 1

VRO

VRU

VLO

BHO

BLO

AHO

ALO

* Power-on-reset value shown below each input register bit.

Serial Register Reference*

Mask 0

V3O – V3 OVERVOLTAGE

V3U – V3 UNDERVOLTAGE

VBS – BOOTSTRAP UNDERVOLTAGE

TW – TEMPERATURE WARNING

BHU – PHASE B HIGH-SIDE VGS UNDERVOLTAGE

BLU – PHASE B LOW-SIDE VGS UNDERVOLTAGE

AHU – PHASE A HIGH-SIDE VGS UNDERVOLTAGE

ALU – PHASE A LOW-SIDE VGS UNDERVOLTAGE

xxx

Fault Mask

Default

Fault Detection Permitted

Fault Detection Disabled

P – PARITY BIT

Ensures an odd number of 1s in any serial transfer.

Mask 1

VRO – VREG OVERVOLTAGE

VRU – VREG UNDERVOLTAGE

VS – VBB OUT OF RANGE

VLO – LOGIC OVERVOLTAGE

BHO – PHASE B HIGH-SIDE VDS OVERVOLTAGE

BLO – PHASE B LOW-SIDE VDS OVERVOLTAGE

AHO – PHASE A HIGH-SIDE VDS OVERVOLTAGE

ALO – PHASE A LOW-SIDE VDS OVERVOLTAGE

xxx

Fault Mask

Default

Fault Detection Permitted

Fault Detection Disabled

P – PARITY BIT

Ensures an odd number of 1s in any serial transfer.

A3924 Datasheet(PDF) 45 Page - Allegro MicroSystems

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