DRV8876NPWPT

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1. Describe

The DRV8876NPWPT is an integrated motor driver with an N-channel H-bridge, charge pump, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half-bridge and 100% duty cycle drive. This family of devices offers pin-to-pin RDS(on) variants to support different loads with minimal design changes. A low-power sleep mode achieves ultra-low quiescent current consumption by shutting down most of the internal circuitry. Internal protection features include power supply undervoltage lockout, charge pump undervoltage, output overcurrent, and device overtemperature. Fault conditions are indicated on nFAULT. Check out our complete portfolio of brushed motor drivers on ti.com. It operates from a voltage range of 4.5 to 37V and supports various output load currents for various types of motors and loads. These devices integrate an H-bridge output power stage that can operate in different control modes set by the PMODE pin setting. This allows driving a single bidirectional brushed DC motor, two unidirectional brushed DC motors, or other output load configurations. These devices integrate a charge pump regulator to support more efficient high-side N-channel MOSFETs and 100% duty cycle operation. These devices operate from a single power input (VM) and can be connected directly to a battery or DC voltage source. The nSLEEP pin provides an ultra-low power mode to minimize current consumption during system inactivity. Various comprehensive protection functions protect equipment in the event of system failure. These include undervoltage lockout (UVLO), charge pump undervoltage (CPUV), overcurrent protection (OCP), and thermal shutdown (TSD). Fault conditions are indicated on the nFAULT pin.

2. Feature

    1. N-channel H-bridge motor driver

        – Drives a bidirectional brushed DC motor

        – Two unidirectional brushed DC motors

        – other resistive and inductive loads

    2. 4.5V to 37V operating supply voltage range

    3. High output current capability: 3.5A peak

    4. Selectable input control mode (PMODE)

        – PH/EN and PWM H-bridge control modes

        – Independent half-bridge control mode

    5. Supports 1.8-V, 3.3-V and 5-V logic inputs

    6. Ultra low power sleep mode

        – <1µA @ VVM = 24V, TJ = 25°C

    7. Spread-spectrum clocking for low electromagnetic waves Interference (EMI)

    8. Comprehensive protection functions

        – Under Voltage Lockout (UVLO)

        – Charge Pump Undervoltage (CPUV)

        – Over Current Protection (OCP): Auto Retry or Output Lock (IMODE)

        – Thermal Shutdown (TSD)

        – Automatic failback

        – Fault indicator pin (nFAULT)

3. application

    1. Brushed DC motor

    2. Small and large appliances

    3. Vacuum, humanoid and toy robots

    4. Printers and scanners

    5. Smart meters

    6. ATMs, money counters and EPOS

    7. Servo motors and actuators

4. Pin configuration

5. Pin Description

6. Application Information

The DRV8876NPWPT family of devices can be used in a variety of applications that require either a half-bridge or H-bridge power stage configuration. Common application examples include brushed DC motors, solenoids, and actuators. The device can also be utilized to drive many common passive loads such as LEDs, resistive elements, relays, etc. The application examples below will highlight how to use the device in bidirectional current control applications requiring an H-bridge driver and dual unidirectional current control applications requiring two half-bridge drivers.