DRV8873-Q1 Automotive H-Bridge Motor Driver | TI.com

DRV8873-Q1 (ACTIVE)

Automotive H-Bridge Motor Driver

Automotive H-Bridge Motor Driver - DRV8873-Q1
 

Description

The DRV8873-Q1 device is an integrated driver IC for driving a brushed DC motor in automotive applications. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that drive motors bi-directionally with up to 10-A peak current. The device operates from a single power supply and supports a wide input supply range from 4.5 V to 38 V.

A PH/EN or PWM interface allows simple interfacing to controller circuits. Alternatively, independent half-bridge control is available to drive two solenoid loads.

A current mirror allows the controller to monitor the load current. This mirror approximates the current through the high-side FETs, and does not require a high-power resistor for sensing the current.

A low-power sleep mode is provided to achieve very-low quiescent current draw by shutting down much of the internal circuitry. Internal protection functions are provided for undervoltage lockout, charge pump faults, overcurrent protection, short-circuit protection, open-load detection, and overtemperature. Fault conditions are indicated on an nFAULT pin and through the SPI registers.

Features

  • AEC-Q100 Qualified For Automotive Applications
    • Device Temperature Grade 1: –40°C to +125°C, TA
  • H-Bridge Motor Driver
    • Drives One DC Motor, One Winding of a Stepper Motor, or Solenoid Loads
  • 4.5-V to 38-V Operating Voltage Range
  • 10-A Peak Current Drive
  • Low HS + LS RDS(ON)
    • 150 mΩ at TJ = 25°C, 13.5 V
    • 250 mΩ at TJ = 150°C, 13.5 V
  • Current Mirror for Output Current Sensing
  • Configurable Control Interface
    • PH/EN
    • PWM (IN1/IN2)
    • Independent Half-Bridge Control
  • Supports 1.8-V, 3.3-V, 5-V Logic Inputs
  • SPI or Hardware Interface Options
  • Low-Power Sleep Mode (10 µA)
  • Small Package and Footprint
    • 24 HTSSOP PowerPAD™ IC Package
  • Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Charge Pump Undervoltage (CPUV)
    • Overcurrent Protection (OCP)
    • Output short to battery and short to ground protection
    • Open Load Detection
    • Thermal Shutdown (TSD)
    • Fault Condition Output (nFAULT / SPI)

All trademarks are the property of their respective owners.

View more

Parametrics Compare all products in Brushed DC (BDC) motor drivers

 
Vs (Min) (V)
Vs (Max) (V)
Peak Output Current (A)
Number of Half Bridges
Control I/F
RDS(ON) (HS + LS) (mOhms)
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Approx. Price (US$)
DRV8873-Q1 DRV8872-Q1
4.5     6.5    
40     45    
10     3.6    
2     2    
PWM
PH/EN
Independent 1/2-H PWM    
PWM    
150     565    
Automotive     Automotive    
-40 to 125     -40 to 125    
HTSSOP | 24     SO PowerPAD | 8    
24HTSSOP: 50 mm2: 6.4 x 7.8 (HTSSOP | 24)     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)    
1.91 | 1ku     0.93 | 1ku