| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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10,000 pcs
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10000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | 2026-02-16 21:33:16 |
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The A4964KEVTR-J from Allegro Microsystems is a three-phase, sensorless, brushless DC (BLDC) motor controller specifically designed for automotive applications. It utilizes a sinusoidal current drive method, determining phase commutation by monitoring the motor's back-EMF without requiring independent position sensors. This sensorless approach, combined with a robust start-up scheme, allows for operation across a wide range of motor and load combinations.
This controller supports various control modes, including duty cycle (voltage) control, current (torque limit) control, and closed-loop speed control, all programmable via an SPI-compatible serial interface. Integrated diagnostics provide essential feedback on undervoltage, overtemperature, and power bridge faults, offering protection for power switches under fault conditions. The A4964KEVTR-J is supplied in a 36-terminal QFN package with an exposed thermal pad, suitable for surface mounting.
Key features include a 5.5V to 50V supply range, three-phase sinusoidal drive with soft start, and windmill detection and synchronization. It also provides bootstrap gate drive for N-channel MOSFET bridges. The device is well-suited for automotive fuel, oil, and urea pumps, as well as automotive fans and blowers.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.25 | $2.25 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage range is 5.5 V to 50 V.
The operating temperature range is -40°C to 150°C.
It controls Brushless DC (BLDC) motors.
It uses an SPI-compatible serial interface.
It is designed for automotive applications.
It is supplied in a 36-VFQFN Exposed Pad package.