SLVAFY3 January   2025 DRV8376 , DRV8376-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Application Overview
    1. 2.1 Automotive 48V HVAC Valves and Actuators
    2. 2.2 Building HVAC Valves and Actuators
    3. 2.3 Industrial Application with 48V Supply
      1. 2.3.1 Robotics and Humanoids
      2. 2.3.2 Server and Telecom
  6. 3Integrated FET 3-Phase Motor Driver DRV8376 for 48V Applications
  7. 4DRV8376 for High Performance System Design
    1. 4.1 Enabling 48V BLDC Motor Drive Applications
    2. 4.2 Compact Design with High Level Integration
    3. 4.3 Increased Power Delivery and Efficiency
    4. 4.4 Increased Creepage and Clearance
    5. 4.5 Improved Precision in Motor Control
    6. 4.6 Integrated Protection
    7. 4.7 EMI Optimization
  8. 5Summary
  9. 6References

3 Integrated FET 3-Phase Motor Driver DRV8376 for 48V Applications

The DRV8376 is a single-chip 3-phase power stage for driving BLDC motors from 4.5V to 65V. The DRV8376 integrates three 1/2H bridges with 70V absolute maximum voltage capability with optimized switching and a low RDS(ON) (200mΩ per FET) MOSFET to enable high power drive capability. Motor current is sensed using a shunt-less integrated current sense circuit, eliminating the need for external sense resistors and current sense amplifiers. Power management features with integrated LDOs to generate the necessary voltage rails of 3.3V (AVDD) and 5V (GVDD) that can also be used to power external circuits.

Figure 3-1 shows the simplified application schematic of DRV8376.

DRV8376 Simplified Application Schematic Figure 3-1 DRV8376 Simplified Application Schematic