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DC-DC Converter

      SDM03V70RA3 is a 3-phase brushless DC motor driver IC with highly-integrated and high reliability, using for low-power variable frequency drives such as fans and pumps. It integrates three-phase half-bridge high-voltage gate drive circuit, and six low-loss RC IGBTs.

      SDM03V70RA3 integrates various protection functions such as undervoltage, short circuit, and overtemperature, providing excellent protection and a wide safe operating range. Since each phase has an independent negative DC terminal, its current can be sensed separately.

      SDM03V70RA3 is designed with good insulation and perfect thermal properties. It is compact and suitable for applications requiring the compact installation.


Main feature
  • Built-in six 700V/3A low-loss RC IGBTs 

  • Built-in high-voltage gate driver (HVIC)

  • Built-in under voltage protections, over temperature protection, over current protection 

  • Built-in enable shutdown function

  • Built-in H-H interlock

  • Built-in bootstrap diode

  • Compatible with 3.3V, 5V MCU interface, active high

  • Three independent negative DC terminals for inverter current detection

  • Insulation class: 1500Vrms/min


Ordering Information
Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
SDM03V70RA3 DIP-2VC SDM03V70RA3 Halogen free Tube
Block Diagram

SDM03V70RA3 中英文同.png

Documents
title Types of Size (KB) date Download the latest English version
SDM03V70RA3 0 2026-08-28 SDM03V70RA3 Brief Datasheet
Packages