SLVAE59A February   2019  – April 2022 DRV8242-Q1 , DRV8243-Q1 , DRV8244-Q1 , DRV8245-Q1 , DRV8343-Q1 , DRV8702-Q1 , DRV8702D-Q1 , DRV8703-Q1 , DRV8703D-Q1 , DRV8803 , DRV8804 , DRV8805 , DRV8806 , DRV8860 , DRV8873 , DRV8873-Q1 , DRV8874 , DRV8874-Q1 , DRV8876 , DRV8876-Q1 , DRV8935 , DRV8955

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Types of Solenoids
  3. 2Solenoid Driving Typologies
    1. 2.1 Low-Side and High-Side Configuration
    2. 2.2 Half-Bridge and H-Bridge Driver Configurations
  4. 3Basics of Driving Solenoid Loads
    1. 3.1 Current Control
    2. 3.2 Fast Discharging Circuits
      1. 3.2.1 Freewheeling and Clamping
      2. 3.2.2 Passive Voltage Clamping
  5. 4DRV Motor Driver Features for Solenoid Driving
    1. 4.1 Current Sensing and Regulation Solutions
    2. 4.2 Independent Low-/High-Side Driving
    3. 4.3 Half-Bridge Driving
    4. 4.4 Integrated and Gate Driver H-Bridges
  6. 5Summary
  7. 6Revision History

4.4 Integrated and Gate Driver H-Bridges

TI motor drivers can also support H-bridge driving with integrated gate drivers or gate driving solutions. Some drivers, such as DRV8714-Q1 and DRV8718-Q1 gate drivers, have H-Bridge control mode, which can enable driving two to four H-bridges. If PWM control is not required, the two H-bridge gate drivers can even be controlled directly through SPI control registers. In this mode, the active freewheeling recirculation path (low-side or high-side) is configurable in SPI register.

GUID-51BB8BA7-815E-47B5-A9F2-0C8E7F359982-low.gif Figure 4-9 H-Bridge Control Example

For space-constrained solenoid applications, the DRV8243-Q1 integrated H-bridge driver can be configured as a single H-bridge driver or as two independent half-bridge drivers. This device can also control bridges through SPI specific register bits. Additionally, the user can configure between an AND/OR logical combination of each external input with their equivalent register bit. For example, pin input can be ANDed with SPI_IN register bit, for certain configuration bit.

The DRV8243-Q1 device is part of device family, pin to pin compatibility, scalable RDSON to support different loads, and also includes the DRV814x-Q1 integrated half-bridge drivers with half RDSON of DRV824x-Q1 devices.

The DRV887x-Q1 integrated H-bridge driver family, which includes the DRV8873-Q1, includes H-bridges that can support up to 10-A.