A3921 Datasheet - Allegro

A3921, Automotive Full Bridge MOSFET Driver

A3921 Automotive Full Bridge MOSFET Driver .
The A3921 is a full-bridge controller for use with external N‑channel power MOSFETs and is specifically designed for automotive applications with high.

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Datasheet Details

Part number:

A3921

Manufacturer:

Allegro

File Size:

1.12 MB

Description:

Automotive Full Bridge MOSFET Driver

Features

* High current gate drive for N-channel MOSFET full bridge
* High-side or low-side PWM switching
* Charge pump for low supply voltage operation
* Top-off charge pump for 100% PWM
* Cross-conduction protection with adjustable dead time
* 5.5 to 50 V sup

Applications

* with high-power inductive loads, such as brush DC motors. A unique charge pump regulator provides full (>10 V) gate drive for battery voltages down to 7 V and allows the A3921 to operate with a reduced gate drive, down to 5.5 V. A bootstrap capacitor is used to provide the above-battery supply volta

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A3921 Automotive Full Bridge MOSFET Driver Allegro

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