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DRV8243-Q1

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Automotive 40-V, 12-A H-Bridge driver with integrated current sensing and feedback

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Product details

Parameters

Number of full bridges 1 Vs (Min) (V) 4.5 Vs ABS (Max) (V) 40 Peak output current (A) 12 RDS(ON) (HS + LS) (mOhms) 85 Sleep current (uA) 5 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO), SPI Features Current Regulation, Current Sense Amplifier, Integrated Current Sensing, Open-Load Detection Rating Automotive Operating temperature range (C) -40 to 125 open-in-new Find other Brushed DC (BDC) motor drivers

Package | Pins | Size

HVSSOP (DGQ) 28 open-in-new Find other Brushed DC (BDC) motor drivers

Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • 40 V Abs Max, 4.5 V to 35 V operating range
  • VQFN-HR package: RON_LS + RON_HS: 84 mΩ
  • HVSSOP package: RON_LS + RON_HS: 98 mΩ
  • IOUT Max = 12 A
  • PWM frequency operation up to 25 KHz with automatic dead time assertion
  • Configurable slew rate and spread spectrum clocking for low electromagnetic interference (EMI)
  • Integrated current sense (eliminates shunt resistor)
  • Proportional load current output on IPROPI pin
  • Configurable current regulation
  • Protection / Diagnostic features with configurable fault reaction (latched or retry)
    • Load diagnostics in both the off-state and on-state to detect open load and short circuit
    • Voltage monitoring on supply (VM)
    • Over current protection
    • Over temperature detection
    • Fault indication on nFAULT pin
  • Supports 3.3-V, 5-V logic inputs
  • Low sleep current - 1µA typical at 25°C
  • SPI or Hardware interface variant option
  • Configurable modes to operate the device as:
    • Single full bridge using PWM or PH/EN mode
    • Two half-bridges using Independent mode
  • Device comparison table shows the complete family
  • Typical loads include unidirectional and bidirectional brushed DC motors, solenoids, relays and other inductive or resistive loads.
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Description

The DRV824x-Q1 family of devices is a fully integrated H-bridge driver intended for a wide range of automotive applications. The device can be configured as a single full-bridge driver or as two independent half-bridge drivers. Designed in Texas Instruments’ proprietary BiCMOS high power process technology node, this monolithic family of devices in a power package offer excellent power handling and thermal capability while providing compact package size, ease of layout, EMI control, accurate current sense, robustness, and diagnostic capability. This family also has identical pin function with scalable RON (current capability) to support different loads.

The devices integrate a N-channel H-bridge, charge pump regulator, high-side current sensing and regulation, current proportional output, and protection circuitry. A low-power sleep mode is provided to achieve low quiescent current. The devices offer voltage monitoring and load diagnostics as well as protection features against over current and over temperature. Fault conditions are indicated on nFAULT pin. The devices are available in two interface variants - hardware (HW) and SPI. SPI interface device has two variant choices, "P" for externally supplied logic supply, and "S" for internally generated logic supply. The SPI variant offers more flexibility in device configuration and fault observability.

open-in-new Find other Brushed DC (BDC) motor drivers
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Technical documentation

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Type Title Date
* Data sheet DRV8243-Q1 Automotive H-Bridge Driver with Integrated Current Sense and Diagnostics datasheet Jan. 14, 2021
Functional safety information DRV8243-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA Aug. 09, 2021
Technical article Why are you still driving automotive motors with relays? Jul. 13, 2017
Technical article The story of motor-drive integration Jan. 09, 2017
Technical article How to create a dynamic power solution for stepper motors, relays and LEDs Nov. 01, 2016
Technical article How to avoid motor and system overvoltage using AVS technology without external components Oct. 14, 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
149
Description

The DRV824x-Q1 family of devices is a fully integrated H-bridge driver intended for a wide range of automotive applications. The DRV824x-Q1 device can be configured as a single H-bridge driver, two independent half bridge drivers.  Designed in Texas Instruments' proprietary high power BiCMOS (...)

Features
  • AEC-Q100 qualified for automotive applications
  • 40 V Abs max voltage
  • Integrated current sense (eliminates shunt resistor)
  • Protection/diagnostic features
  • EVM firmware field upgradeable without additional hardware
EVALUATION BOARD Download
document-generic User guide
149
Description

The DRV824x-Q1 family of devices is a fully integrated H-bridge driver intended for a wide range of automotive applications. The DRV824x-Q1 device can be configured as a single H-bridge driver, two independent half bridge drivers. Designed in Texas Instruments' proprietary high power BiCMOS process (...)

Features
  • AEC-Q100 qualified for automotive applications
  • 40 V Abs max voltage
  • Integrated current sense (eliminates shunt resistor)
  • Protection/diagnostic features
  • EVM firmware field upgradeable without additional hardware

Design tools & simulation

CALCULATION TOOL Download
SLVRBI3A.ZIP (1069 KB)

CAD/CAE symbols

Package Pins Download
HVSSOP (DGQ) 28 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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