2 Introduction
2.1 Overview
The DRV824x and DRV814x family of devices are a fully integrated H-bridge and half-bridge drivers,
respectively, intended for a wide range of automotive applications. The DRV824x device can be configured as
a single H-bridge driver, or two independent half-bridge drivers. Designed in Texas Instruments' proprietary high
power BiCMOS process technology node, this monolithic die device in a power package offers excellent power
handling and thermal capability while providing compact package size, ease of layout, EMI control, accurate
current sense, robustness and diagnostic capability. The DRV824x and DRV814x family of devices each has
an identical pin function with scalable RDS
ON
(current capability) to support different loads with minimal design
changes within their respective family (H-bridge or half-bridge).
The device integrates an N-channel output stage, charge pump regulator, high side current sensing and
regulation, current proportional output, and protection circuitry. A low-power sleep mode is provided to achieve
ultra-low quiescent current draw by shutting down most of the internal circuitry. The device offers voltage
monitoring and load diagnostics as well as protection features against output over current and device over
temperature. Fault conditions are indicated on the nFAULT pin. The device is available in two interface variants -
hardware (“HW”) and SPI. The HW variant uses strapping resistors for fixed configuration. The SPI variant offers
more flexibility in device configuration and fault observability with an external controller.
2.1.1 Purpose and Scope
This document is designed to be used as a startup guide and to supplement the DRV824x-Q1EVM and
DRV814x-Q1EVM (“EVM”). The scope of this document is to provide the user with a guide to evaluate the
DRV824x-Q1 and/ or DRV814x-Q1 device using a Graphical User Interface (GUI). The GUI application is
required to control the EVM. This document covers the required EVM connections, configuration, and steps to
acquire and use the GUI application for a successful evaluation.
Introduction
2
DRV824x_DRV814x-Q1EVM User’s Guide
SLVUC46A – MARCH 2021 – REVISED JULY 2021
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