Automotive Brushed DC Motor Gate Driver - DRV8702-Q1

DRV8702-Q1 (ACTIVE)

Automotive Brushed DC Motor Gate Driver

 

Description

The DRV870x-Q1 family of devices is a single H-bridge gate driver that uses four external N-channel MOSFETs targeted to drive a bidirectional brushed-DC motor.

A PH/EN, independent H-Bridge, or PWM interface allows simple interfacing to controller circuits. An internal sense amplifier provides adjustable current control. The gate driver includes circuitry to regulate the winding current using fixed off-time PWM current chopping.

The DRV870x-Q1 family of devices drives both high-side and low-side FETs with a 10.5-V VGS gate drive. The gate-drive current for all external FETs is configurable with a single external resistor or through the serial peripheral interface (SPI).

A low-power sleep mode is provided which shuts down internal circuitry to achieve a very-low
quiescent-current draw.

Features

  • AEC-Q100 Qualified for Automotive Applications
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Single H-Bridge Gate Driver
    • Drives Four External N-Channel MOSFETs
    • Supports 100% PWM Duty Cycle
  • 5.5- to 45-V Operating Supply-Voltage Range
  • Three Control-Interface Options
    • PH/EN, Independent H-Bridge, and PWM
  • Serial Interface for Configuration (DRV8703-Q1)
  • Adjustable Gate Drive For Slew-Rate Control
  • Independent Control of Each H-Bridge
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Current-Shunt Amplifier
  • Integrated PWM Current Regulation
  • Low-Power Sleep Mode
  • Small Package and Footprint
    • 32-Pin VQFN
    • 5 mm × 5 mm
    • Wettable Flanks Package
  • Protection Features
    • Supply Undervoltage Lockout (UVLO)
    • Charge-Pump Undervoltage (CPUV) Lockout
    • Overcurrent Protection (OCP)
    • Gate-Driver Fault (GDF)
    • Thermal Shutdown (TSD)
    • Watchdog Timer (DRV8703-Q1)
    • Fault-Condition Output (nFAULT)

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Parametrics Compare all products in Brushed DC Gate Drivers

 
Vs (Min) (V)
Vs (Max) (V)
Peak Output Sink Current Gate Drive (Max) (A)
Peak Output Source Current Gate Drive (Max) (A)
Control I/F
Additional Features
Rating
DRV8702-Q1 DRV8701 DRV8702D-Q1 DRV8703-Q1 DRV8703D-Q1 DRV8704
5.5    5.9    5.5    5.5    5.5    8   
45    45    45    45    45    52   
0.5    0.3    0.5    0.5    0.5    0.4   
0.25    0.15    0.25    0.25    0.25    0.2   
PHASE/ENABLE
PWM
Independent 1/2-H PWM   		 PHASE/ENABLE
PWM   		 Independent 1/2-H PWM    PHASE/ENABLE
PWM
Independent 1/2-H PWM   		 Independent 1/2-H PWM    PWM   
Adjustable Gate Drive Settings
Integrated Current Shunt Amplifier
Low-Power Sleep Mode   		 Adjustable Gate Drive Settings
3.3V/5V LDO
Integrated Current Shunt Amplifier
Low-Power Sleep Mode   		 Adjustable Gate Drive Settings
Integrated Current Shunt Amplifier
Low-Power Sleep Mode   		 Adjustable Gate Drive Settings
SPI Interface
Integrated Current Shunt Amplifier
Low-Power Sleep Mode   		 Adjustable Gate Drive Settings
SPI Interface
Integrated Current Shunt Amplifier
Watch Dog
Low-Power Sleep Mode   		 Automatic Mixed Decay Mode
Adjustable Gate Drive Settings
5V Integrated LDO
Low-Power Sleep Mode
Highly Configurable SPI   
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