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Same model may have multiple batches, images only for reference.
DRV3946QPWPRQ1 Texas Instruments
Same model may have multiple batches, images only for reference.

DRV3946QPWPRQ1

Part No DRV3946QPWPRQ1
Manufacturer Texas Instruments
Catalog PMIC - Full, Half - Bridge Drivers
Description AUTOMOTIVE 12-V CONTACTOR DRIVER
Sample
Rohs State rohs
ECAD Module
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Products specifications Report Issue?

Win Source Part Number WS1306418-DRV3946QPWPRQ1
Category Integrated Circuits (ICs) Power Management (PMIC) Full Half-Bridge (H Bridge) Drivers
Manufacturer Texas Instruments
Packaging Tape & Reel (TR) Cut Tape (CT)
Part Status Active
Output Configuration Half Bridge
Applications Relays, Solenoids
Interface SPI
Load Type Inductive
Rds On (Typ) 37mOhm LS, 57mOhm HS
Voltage - Supply 12V
Ultra Librarian 3D Model Ultra Librarian DRV3946QPWPRQ1 CAD Model

Description

  • AEC-Q100 qualified for automotive applications 
    Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Compliant targeted 
    1.Developed for functional safety applications
    2.Documentation to aid ISO26262 system design up to ASIL C will be available 
  • Highly integrated solenoid driver targeted at automotive EV contactor relay and solenoid control applications
    1.Integration of power supplies, current regulation, diagnostics, and safety functions
    2.High-efficiency solenoid driving with configurable peak and hold current settings 
    3.Built-in-self-test and diagnostic functions for power supplies, interfaces, drivers, and monitors 
    4.Architecture for reliable operation with redundant power supplies, low-side and highside drivers, and secondary monitoring logic 
  • Up to 28-V (40-V abs. max) operating voltage 
  • Integrated modified half-bridge
    1.For charging, recirculation and clamping 
    2.Typical RDS(ON): 37 mΩ (low-side), 57 mΩ (high-side)
    3.Quick Turn Off with integrated clamp circuits 
    4.High-side clamp with redundant low-side clamp 
  • Low-side load control by single wire connection 
    Allows external high-side switch for redundant shut-off 
  • ± 5% accurate Low and High-side current sense
    Analog load current feedback pin (IPROPI) 
  • Internal control mode: 
    1.Closed loop PWM current regulation
    2.Configurable peak time, peak and hold currents 
  • External control mode:
    1.Vary duty cycle at fixed PWM frequency 
    2.Vary PWM frequency at fixed duty cycle 
  • 4-wire, addressable, 24-bit SPI with CRC
    1.Allows multiple devices to operate on same SPI
    2.Can broadcast commands to multiple devices 
  • Comprehensive protection and diagnostics: 
    1.Device built-in-self-test
    2.Load monitoring for open/short detection
    3.Sensing loss of control during driver ON and OFF
    4.Forced relay open for undercurrent or undervoltage
    5.Redundant pin shut-off
    6.Fault notification on nFAULT pin

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