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

8.3.2.3 Half-Bridge Control Mode (DSG: MODE = Hi-Z)

When the MODE pin is floating (Hi-Z), the DSG variant selects the half-bridge control mode. This mode allows for each half-bridge to be directly controlled in order to support high-side slow decay (or brake), driving two independent loads, or paralleling the outputs for higher current capability for a single load. Table 8-5 shows the truth table for independent half-bridge mode.If the MODE pin is connected to a GPIO pin from a microcontroller, the microcontroller can achieve the Hi-Z state by setting the GPIO pin as an input. When using half-bridge mode, the device can go into sleep mode by bringing the MODE, IN1, and IN2 pins logic low. The GPIO controlling the MODE pin will need to be reconfigured as an output set to logic low. Alternatively, the VCC pin can be supplied from a GPIO and used to put the device to sleep in some cases. See Section 8.4.2 for more details.

Table 8-5 Half-bridge control mode
VCC MODE IN1 IN2 OUT1 OUT2 DESCRIPTION
0 V X X X Hi-Z Hi-Z Low-power sleep mode
1.65-5.5 V 0 0 0 Hi-Z Hi-Z H-bridge disable/low-power automatic sleep mode
1.65-5.5 V Hi-Z 0 X L X OUT1 low-side On
1.65-5.5 V Hi-Z 1 X H X OUT1 high-side On
1.65-5.5 V Hi-Z X 0 X L OUT2 low-side On
1.65-5.5 V Hi-Z X 1 X H OUT2 high-side On