Datasheet Details
| Part number | A4938 |
|---|---|
| Manufacturer | Allegro MicroSystems |
| File Size | 622.43 KB |
| Description | 3-Phase Brushless DC Motor Pre-Driver |
| Datasheet | A4938-Allegro.pdf |
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Overview: A4938 3-Phase Brushless DC Motor Pre-Driver.
| Part number | A4938 |
|---|---|
| Manufacturer | Allegro MicroSystems |
| File Size | 622.43 KB |
| Description | 3-Phase Brushless DC Motor Pre-Driver |
| Datasheet | A4938-Allegro.pdf |
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The A4938 is a complete 3-phase brushless DC (BLDC) motor pre-driver, supplying direct, high-current gate drive of an all N-channel power MOSFET 3-phase bridge.
The device has three Hall-element inputs, a sequencer for commutation control, fixed off-time pulse width modulation (PWM) current control, and locked-rotor detection.
Output current is scaled by the capability of the external MOSFETs.
| Part Number | Description |
|---|---|
| A4933 | Automotive 3-Phase MOSFET Driver |
| A4935 | Automotive 3-Phase MOSFET Driver |
| A4937 | Automotive 3-Phase MOSFET Driver |
| A4939 | Automotive Three Phase MOSFET 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 |
| A4923 | 3-Phase Sinusoidal Motor Controller |