DRV8703-Q1 Automotive Brushed DC Gate Driver | TI.com

DRV8703-Q1 (ACTIVE) Automotive Brushed DC Gate Driver

 

Description

The DRV870x-Q1 devices are small single H-bridge gate drivers that use 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. Integrated Charge-Pump allows for 100% duty cycle support and can be used to drive external reverse battery switch.

Independent Half Bridge mode allows sharing of half bridges to control multiple DC motors sequentially in a cost-efficient way. The gate driver includes circuitry to regulate the winding current using fixed off-time PWM current chopping.

The DRV870x-Q1 devices include Smart Gate Drive technology to remove the need for any external gate components (resistors and Zener diodes) while protecting the external FETs. The Smart Gate Drive architecture optimizes dead time to avoid any shoot-through conditions, provides flexibility in reducing electromagnetic interference (EMI) with programmable slew-rate control and protects against any gate-short conditions. Additionally, active and passive pulldowns are included to prevent any dv/dt gate turn on.

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)
  • Smart Gate Drive Architecture
    • Adjustable 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
  • 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

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Part number Order Control mode Vs (Min) (V) Features Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Pin/package Rating Control interface Vs (Max) (V)
DRV8703-Q1 Order now PWM
PH/EN
Independent 1/2-H PWM    
5.5     Smart Gate Drive
Current Sense Amplifier
Current Regulation
SPI/I2C
Single H-bridge    
-40 to 125     VQFN | 32     32VQFN: 25 mm2: 5 x 5 (VQFN | 32)     32VQFN     Automotive     SPI
Hardware (GPIO)    
45    
DRV8702-Q1 Order now PWM
PH/EN
Independent 1/2-H PWM    
5.5     Smart Gate Drive
Current Sense Amplifier
Current Regulation
Single H-bridge    
-40 to 125     VQFN | 32     32VQFN: 25 mm2: 5 x 5 (VQFN | 32)     32VQFN     Automotive     Hardware (GPIO)     45    
DRV8702D-Q1 Order now Independent 1/2-H PWM     5.5     Smart Gate Drive
Current Sense Amplifier
On-Chip Power Management
Current Regulation
Hardware Management I/F    
-40 to 125     VQFN | 32     32VQFN: 25 mm2: 5 x 5 (VQFN | 32)     32VQFN     Automotive       45    
DRV8703D-Q1 Order now Independent 1/2-H PWM     5.5     Smart Gate Drive
Current Sense Amplifier
On-Chip Power Management
Current Regulation
SPI/I2C Management I/F    
-40 to 125     VQFN | 32     32VQFN: 25 mm2: 5 x 5 (VQFN | 32)     32VQFN     Automotive     SPI
Hardware (GPIO)    
45    
DRV8704 Order now PWM     8     Current Regulation
SPI/I2C
Multi H-bridge    
-40 to 85     HTSSOP | 38     38HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 38)     38HTSSOP     Catalog     SPI
Hardware (GPIO)    
52