TIDUF53 December   2023 DRV8210 , INA350 , MSPM0L1306

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Terminology
    2. 1.2 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 System Design Theory
      2. 2.2.2 Bridge Biasing
      3. 2.2.3 INA Stage
      4. 2.2.4 Filter Design
    3. 2.3 Highlighted Products
      1. 2.3.1 MCU-MSPM0L1306
      2. 2.3.2 OPA-LMV324A
      3. 2.3.3 LDO-TPS7A2433
      4. 2.3.4 INA350
      5. 2.3.5 DRV8210
      6. 2.3.6 ATL431LI
  9. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
      1. 3.1.1 System Connection
    2. 3.2 Software Requirements
    3. 3.3 Running the Demonstration
    4. 3.4 Test Results
  10. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematic
      2. 4.1.2 BOM
      3. 4.1.3 PCB Layout Recommendations
    2. 4.2 Tools and Software
    3. 4.3 Documentation Support
    4. 4.4 Support Resources
    5. 4.5 Trademarks
  11. 5About the Author

2.3.5 DRV8210

This device is a brushed motor driver that use GPIO or PWM inputs from the MCU to drive both the pump and valve used to inflate and deflate the cuff. Two independent half-bridges capable of 1.76 A per channel are integrated in a design that is smaller against discrete alternatives. The DRV8210 comes as small as 1.2 mm × 1.60 mm and includes an auto-sleep feature with lower than 84.5-nA current draw at 5 V. Figure 2-12 shows the functional block diagram.

This device only requires two bypass capacitors and integrates undervoltage lockout (UVLO), overcurrent protection (OCP), and device overtemperature.

GUID-20231204-SS0I-QV98-1BQW-QHJQWHTWBXL6-low.svg Figure 2-12 DRV8210 Functional Block Diagram