A3959SB-T

A3959SB-T概述

ALLEGRO MICROSYSTEMS  A3959SB-T  芯片, 电机驱动器, 全桥, PWM, SMD

The is a DMOS full-bridge PWM Motor Driver IC with crossover-current protection. The A3959 driver is designed for pulse width modulated current control of DC motors, capable of output currents to ±3A and operating voltages to 50V. Internal fixed off-time PWM current control timing circuitry can be adjusted via control inputs to operate in slow, fast and mixed current-decay modes. The PHASE and ENABLE input terminals are provided for use in controlling the speed and direction of a motor with externally applied PWM-control signals. Internal synchronous rectification control circuitry is provided to reduce power dissipation during PWM operation. Internal circuit protection includes thermal shutdown with hysteresis, under-voltage monitoring of supply and charge pump and crossover-current protection.

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Synchronous rectification for reduced power dissipation
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Internal UVLO and thermal-shutdown circuitry
.
Internal oscillator for digital PWM timing
.
Mixed, fast and slow current-decay modes
.
Low RDS ON outputs
.
-20 to 85°C Ambient temperature range
A3959SB-T数据文档
型号 品牌 下载
A3959SB-T

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A3950SEUTR-T

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A3959SLBTR-T

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A3959SLPTR-T

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A3950SLPTR-T

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A3952SW

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A3953SLBTR-T

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A3955SLBTR

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A3955SB-T

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A3955SB

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A3953SLB

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