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Description

The A1441 is a full-bridge motor driver designed to drive low-voltage bipolar brushless dc motors. Commutation of the motor is achieved by use of a single Hall element sensor to detect the position of an alternating-pole ring magnet. A high density merged Bipolar-CMOS semiconductor process allows the integration of the Hall element on the same IC as the motor control circuitry, providing a single-chip solution for enhanced reliability. All necessary circuitry is incorporated within the device package, eliminating the need for any external support components.

Features and Benefits

? Single-chip solution for high reliability

? Chopper stabilization technique for precise signal response over operating range

? 2.0 to 4.0 V operation

? Sleep mode pin allowing external logic signal enable/disable to reduce average power consumption

? Restart feature

? Small package size