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MS3988 Datasheet quad DMOS full-bridge driver

Manufacturer: Ruimeng

Overview: MS3988/MS3988N Function and Feature The MS3988/MS3988N is a quad DMOS full-bridge driver capable of driving up to two stepper motors or four dc motors. Eachfull-bridge output is rated up to 1.2 A and 36 V. The MS3988/MS3988N 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 mixed decay mode for reduced audible motor noise, increased step accuracy, and reduced power dissipation. Internal synchronous rectification control circuitry is provided to improve power dissipation during PWM operation.

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Datasheet Details

Part number MS3988
Manufacturer Ruimeng
File Size 0.96 MB
Description quad DMOS full-bridge driver
Download MS3988 Download (PDF)

General Description

： Hangzhou Ruimeng Technology Co.,LTD Http: www.relmon.com -1- MS3988/MS3988N Pin NO.

MS3988/MS3 988NN 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 MS3988/MS3 988N 3 4 5 6 8 9 10 13 14 15 16 17 18 19 20 21 22 24 27 28 29 21 32 33 34 37 38 39 40 42 43 44 45 46 47 Name OUT1A SENSE1 OUT1B VBB1 OUT2B SENSE2 OUT2A PHASE4 PHASE3 VDD VREF1 VREF2 VREF3 VREF4 GND PHASE2 PHASE1 I14 OUT4A SENSE4 OUT4B VBB2 OUT3B SENSE3 OUT3A I13 I12 I11 GND VCP CP1 CP2 I01 I02 I03 Description DMOS H Bridge1 outputA H bridge 1 Sense resistor DMOS H Bridge1 outputB Power Load DMOS H Bridge2 outputB H bridge 2 Sense resistor DMOS H Bridge2 outputA l

Key Features

  • include thermal shutdown with hysteresis, undervoltage lockout (UVLO) and crossover current protection. Special power up sequencing is not required. The MS3988/MS3988N is supplied in two packages QFN36，TQFP48,with exposed power tabs for enhanced thermal performance. Featues and benifits：.
  • 36 V output rating.
  • 4 full bridges.
  • High current outputs.
  • 3.3 and 5 V compatible logic supply.
  • Synchronous rectification.
  • UVLO protection.
  • Thermal shutdown circuitry.

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