DRV8876 37-V, 3.5-A Brushed DC Motor Driver with Integrated Current Sensing and Current Sense Output | TI.com

DRV8876 (PREVIEW)

37-V, 3.5-A Brushed DC Motor Driver with Integrated Current Sensing and Current Sense Output

 

Sample availability

PWP package is in preview. Preproduction samples are available (PDRV8876PWPR).  Request now

Description

The DRV887x family of devices are flexible motor drivers for a wide variety of end applications. The devices integrate an N-channel H-bridge, charge pump regulator, current sensing and regulation, current proportional output, and protection circuitry. The charge pump improves efficiency by allowing for both high-side and low-side N-channels MOSFETs and 100% duty cycle support. The family of devices come in pin to pin, scalable RDS(on) options to support different loads with minimal design changes.

The devices support a variety of motor control methods through the PMODE and IMODE pins. These hardware configurable options allow the designer to select the PWM input mode and current regulation scheme.

Integrated current sensing allows for the motor driver to regulate the motor current during start up and high load events. The current limit can be set with an external voltage reference. Additionally, the devices provide an output current proportional to the motor load current. This can be used to detect motor stall or change in load conditions.

A low-power sleep mode is provided to achieve ultra-low quiescent current draw by shutting down most of the internal circuitry. Internal protection features are provided for supply undervoltage lockout (UVLO), charge pump undervoltage (CPUV), output overcurrent (OCP), and device overtemperature (TSD). Fault conditions are indicated on nFAULT.

Features

  • N-Channel H-Bridge Motor Driver
    • Drives One Bidirectional Brushed DC Motor
    • Two Unidirectional Brushed DC Motors
    • Other Resistive and Inductive Loads
  • 4.5-V to 37-V Operating Supply Voltage Range
  • Pin to Pin RDS(on) Variants
    • DRV8876: 700-mΩ (High-Side + Low-Side)
  • High Output Current Capability
    • DRV8876: 3.5-A Peak
  • Integrated Current Sensing and Regulation
  • Proportional Current Output (IPROPI)
  • Selectable Current Regulation (IMODE)
    • Cycle-By-Cycle or Fixed Off Time
  • Selectable Input Control Modes (PMODE)
    • Multiple H-Bridge Control Modes
    • Independent Half-Bridge Control Mode
  • Supports 1.8-V, 3.3-V, and 5-V Logic Inputs
  • Ultra Low-Power Sleep Mode
    • <1-µA @ VVM = 24-V, TJ = 25°C
  • Spread Spectrum Clocking For Low Electromagnetic Interference (EMI)
  • Integrated Protection Features
    • Undervoltage Lockout (UVLO)
    • Charge Pump Undervoltage (CPUV)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • Automatic Fault Recovery
    • Fault Indicator Pin (nFAULT)

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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$)
DRV8876 Order now 4.5     37     3.5     2     PWM
PH/EN
Independent 1/2-H PWM    
700     Catalog     -40 to 125     HTSSOP | 16     16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)     0.70 | 1ku