DRV8872-Q1 Automotive 3.6A Brushed DC Motor Driver With Fault Reporting | TI.com

DRV8872-Q1 (ACTIVE) Automotive 3.6A Brushed DC Motor Driver With Fault Reporting

 

Description

The DRV8872-Q1 device is a brushed DC (BDC) motor driver for infotainment, HUD projector adjustment, motorized shifter knobs, and piezo horn drivers. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that provide bidirectional control of motors up to 3.6-A peak current. The inputs can be pulse-width modulated (PWM) to control motor speed, using a choice of current-decay modes. Setting both inputs low enters a low-power sleep mode.

The DRV8872-Q1 device features integrated current regulation, based on an internal reference voltage and the voltage on the ISEN pin, which is proportional to motor current through an external sense resistor. The ability to limit current to a known level can significantly reduce the system power requirements and bulk capacitance needed to maintain stable voltage, especially for motor startup and stall conditions.

The device is fully protected from faults and short circuits, including undervoltage lockout (UVLO), overcurrent protection (OCP), and thermal shutdown (TSD). Faults are communicated by pulling the nFAULT output low. When the fault condition is removed, the device automatically resumes normal operation.

Features

  • AEC-Q100 Qualified for Automotive Applications:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • H-Bridge Motor Driver
    • Drives One DC Motor, One Winding of a Stepper Motor, or Other Loads
  • Wide 6.8-V to 45-V Operating Voltage
  • 565-mΩ Typical RDS(on) (HS + LS)
  • 3.6-A Peak Current Drive
  • PWM Control Interface
  • Integrated Current Regulation
  • Low-Power Sleep Mode
  • Fault Status Output Pin
  • Small Package and Footprint
    • 8-Pin HSOP With PowerPAD™
    • 4.9 × 6 mm
  • Integrated Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • Fault Reporting (nFAULT)
    • Automatic Fault Recovery

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Parametrics

Compare all products in Brushed DC (BDC) motor drivers Email Download to Excel
Part number Order 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$)
DRV8872-Q1 Order now 6.5     45     3.6     2     PWM     565     Automotive     -40 to 125     SO PowerPAD | 8     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)     1.15 | 1ku    
DRV8871-Q1 Order now 6.5     45     3.6     2     PWM     565     Automotive     -40 to 125     SO PowerPAD | 8     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)     1.14 | 1ku    
DRV8873-Q1 Order now 4.5     40     10     2     PWM
PH/EN
Independent 1/2-H PWM    
150     Automotive     -40 to 125     HTSSOP | 24     24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)     1.91 | 1ku