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

DRV3946QPWPRQ1

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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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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   Symbol, Footprint, 3D 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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