Datasheet Details
| Part number | A4957 |
|---|---|
| Manufacturer | Allegro MicroSystems |
| File Size | 1.13 MB |
| Description | Full Bridge MOSFET Driver |
| Datasheet | A4957-Allegro.pdf |
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Overview: A4957 Full Bridge MOSFET Driver.
| Part number | A4957 |
|---|---|
| Manufacturer | Allegro MicroSystems |
| File Size | 1.13 MB |
| Description | Full Bridge MOSFET Driver |
| Datasheet | A4957-Allegro.pdf |
|
|
|
The A4957 is a full-bridge controller for use with external N-channel power MOSFETs and is specifically designed for 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 A4957 to operate with a reduced gate drive, down to 4.5 V.
A bootstrap capacitor is used to provide the above battery supply voltage required for N-channel MOSFETs.
| Part Number | Description |
|---|---|
| A4952 | Full-Bridge DMOS PWM Motor Drivers |
| A4953 | Full-Bridge DMOS PWM Motor Drivers |
| A4954 | Dual Full-Bridge DMOS PWM Motor Driver |
| A4955 | Full-Bridge PWM Gate Driver |
| A4956 | Full-Bridge PWM Gate Driver |
| A4900 | High Voltage Three Phase Gate Driver |
| A4910 | Automotive 3-Phase MOSFET Driver |
| A4911-1 | Automotive Three-Phase MOSFET Driver |
| A4911-1A | Automotive Three-Phase MOSFET Driver |
| A4918-1A | Automotive Three-Phase MOSFET Driver |