SLVSFY9B June   2021  – August 2021 DRV8212

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics DSG Package
    7. 7.7 Typical Characteristics DRL Package
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 External Components
      2. 8.3.2 Control Modes
        1. 8.3.2.1 PWM Control Mode (DSG: MODE = 0 and DRL)
        2. 8.3.2.2 PH/EN Control Mode (DSG: MODE = 1)
        3. 8.3.2.3 Half-Bridge Control Mode (DSG: MODE = Hi-Z)
      3. 8.3.3 Protection Circuits
        1. 8.3.3.1 Supply Undervoltage Lockout (UVLO)
        2. 8.3.3.2 OUTx Overcurrent Protection (OCP)
        3. 8.3.3.3 Thermal Shutdown (TSD)
      4. 8.3.4 Pin Diagrams
        1. 8.3.4.1 Logic-Level Inputs
        2. 8.3.4.2 Tri-Level Input
    4. 8.4 Device Functional Modes
      1. 8.4.1 Active Mode
      2. 8.4.2 Low-Power Sleep Mode
      3. 8.4.3 Fault Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Full-Bridge Driving
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Supply Voltage
          2. 9.2.1.2.2 Control Interface
          3. 9.2.1.2.3 Low-Power Operation
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Half-Bridge Driving
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1 Supply Voltage
          2. 9.2.2.2.2 Control Interface
          3. 9.2.2.2.3 Low-Power Operation
        3. 9.2.2.3 Application Curves
      3. 9.2.3 Dual-Coil Relay Driving
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Detailed Design Procedure
          1. 9.2.3.2.1 Supply Voltage
          2. 9.2.3.2.2 Control Interface
          3. 9.2.3.2.3 Low-Power Operation
        3. 9.2.3.3 Application Curves
      4. 9.2.4 Current Sense
        1. 9.2.4.1 Design Requirements
        2. 9.2.4.2 Detailed Design Procedure
          1. 9.2.4.2.1 Shunt Resistor Sizing
          2. 9.2.4.2.2 RC Filter
    3. 9.3 Current Capability and Thermal Performance
      1. 9.3.1 Power Dissipation and Output Current Capability
      2. 9.3.2 Thermal Performance
        1. 9.3.2.1 Steady-State Thermal Performance
        2. 9.3.2.2 Transient Thermal Performance
  10. 10Power Supply Recommendations
    1. 10.1 Bulk Capacitance
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information
9.2.1.2.2 Control Interface

Section 8.3.2.1 describes the PWM control interface depending on selected package. TI recommends connecting the the MODE pin directly to the GND net as shown in Figure 9-2. However, if other interface states are required in the application, the MODE pin may be connected to a GPIO pin to select the other interface options during operation. The autosleep feature allows for bidirectional control of the motor and low-power mode using only two pins. This eliminates the need for another GPIO to control a sleep pin. Figure 9-5 and Figure 9-6 show waveform examples of driving a motor with the PWM interface.

Figure 9-7 and Figure 9-8 show waveform examples of driving a single coil relay with the PWM interface. The relay can be driven between the forward/reverse states and the brake/coast states as shown in the figures.

Section 8.3.2.2 describes the PH/EN control interface. Connecting the MODE pin to the microcontroller supply selects the PH/EN interface. PH/EN mode helps to reduce the number of microcontroller PWM generators needed for motor driving by toggling only the EN pin. The PH pin controls the direction of motor driving with this interface. The device will enter sleep mode if EN is held low for longer than tSLEEP.