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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fdrv8242-q1″>View Datasheet

Texas Instruments DRV8242-Q1 Automotive H-Bridge Driver

Texas Instruments DRV8242-Q1 Automotive H-Bridge Driver is an AEC-Q100-qualified fully integrated H-bridge driver for various automotive applications. This device offers voltage monitoring, load diagnostics, and protection features against over-current and overtemperature. The DRV8242-Q1 driver is a bidirectional full-bridge driver with PWM, or phase enable control, and is designed in a BiCMOS high-power process technology node. This automotive driver is ideal for automotive brushed DC motors, solenoids, door modules and seat modules, Body Control Modules (BCM), gas engine systems, and on-board chargers.

The DRV8242-Q1 Driver is available in three variants hardwired interface HW (H) and two SPI interface variants SPI (P) and SPI (S). This driver integrates an N-channel H-bridge, charge pump regulator, high-side current sensing with regulation, current proportional output, and protection circuitry.

Features

  • AEC-Q100 qualified for automotive applications:
    • -40°C to 125°C, TA temperature grade 1
  • Documentation available to aid functional safety system design
  • 4.5V to 35V (40V absolute maximum) operating voltage range
  • RON_LS + RON_HS = 250mΩ resistance for QFN package
  • IOUT maximum = 6A (QFN)
  • PWM frequency operation up to 25KHz 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 and diagnostic features with configurable fault reaction (latched or retry)
    • Load diagnostics in both the off-state and onstate to detect open load and short circuit
    • Voltage Monitoring on supply (VM)
    • Over current protection
    • Over temperature protection
    • Fault indication on nFAULT pin
  • Supports 3.3V and 5V logic inputs
  • 1.3μA typical low sleep current at 25°C
  • Available in 3 variants – HW (H), SPI (S), or SPI (P)
  • Single full bridge using PWM or PH/EN mode

Applications

  • Automotive brushed DC motors and solenoids
  • Door modules and seat modules
  • Body Control Module (BCM)
  • Gas engine systems
  • On board charger

Schematic

Schematic - Texas Instruments DRV8242-Q1 Automotive H-Bridge Driver

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Texas Instruments DRV8242-Q1 Automotive H-Bridge Driver