A3988SEVTR-T 编带
Description
The A3988 is a quad DMOS full-bridge driver capable of driving up to two stepper motors or four dc motors. Each full-bridge output is rated up to 1.2 A and 36 V. The A3988 includes fixed off-time pulse width modulation PWM current regulators, along with 2- bit nonlinear DACs digital-to-analog converters that allow stepper motors to be controlled in full, half, and quarter steps, and dc motors in forward, reverse, and coast modes. The PWM current regulator uses the Allegro® patented mixed decay mode for reduced audible motor noise, increased step accuracy, and reduced power dissipation.
Features and Benefits
▪ 36 V output rating
▪ 4 full bridges
▪ Dual stepper motor driver
▪ High current outputs
▪ 3.3 and 5 V compatible logic supply
▪ Synchronous rectification
▪ Internal undervoltage lockout UVLO
▪ Thermal shutdown circuitry
▪ Crossover-current protection
▪ Low profile QFN package
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
A3988SEVTR-T Allegro MicroSystems 急速微电子 | 当前型号 | 当前型号 |
A3988SEV-T 急速微电子 | 类似代替 | A3988SEVTR-T和A3988SEV-T的区别 |