A1448 Datasheet - Allegro MicroSystems

A1448, Low-Voltage Full-Bridge Brushless DC Motor Driver

A1448 Low-Voltage, Full-Bridge Brushless DC Motor Driver with Integrated Hall Sensor IC, PWM Speed Control, Soft-Switching, and Reverse Battery and Sh.
The A1448 is a full-bridge motor driver designed to drive low-voltage, brushless DC motors.

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Datasheet Details

Part number:

A1448

Manufacturer:

Allegro MicroSystems

File Size:

185.68 KB

Description:

Low-Voltage Full-Bridge Brushless DC Motor Driver

Features

* ▪ Low-voltage operation, 1.8 to 4.2 V ▪ Multifunction CONTROL pin input: ▫ Direct input PWM for speed control ▫ Active braking for fast stop cycle ▫ Sleep function to reduce average power consumption ▪ Reverse voltage protection on VDD and CONTROL pins ▪ Output thermal shutdown protection for robust

Applications

* in portable devices that require fast stop-start cycles, such as haptic applications and vibration ring tones. Commutation of the motor is achieved by use of a single Hall element to detect the rotational position of an alternating-pole ring magnet. A high density CMOS semiconductor process allows t

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A1448 Low-Voltage Full-Bridge Brushless Motor Driver Allegro MicroSystems

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