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Texas Instruments DRV8436E/DRV8436P Dual H-Bridge Motor Drivers

Texas Instruments DRV8436E/DRV8436P Dual H-Bridge Motor Drivers are for a wide variety of industrial applications. The devices can be used for driving two DC motors or a bipolar stepper motor. The output stage of the driver consists of N-channel power MOSFETs configured as two full H-bridges, charge pump regulator, current sensing and regulation, and protection circuitry. The integrated current sensing uses an internal current mirror architecture, removing the need for a large power shunt resistor, saving board area, and reducing system cost. 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). The Texas Instruments DRV8436E/DRV8436P is capable of driving up to 1.5A full scale or 1.1A RMS output current per H-bridge (dependent on PCB design).

Features

  • Dual H-bridge motor driver
    • One bipolar stepper motor
    • Dual bidirectional brushed-DC motors
    • Four unidirectional brushed-DC motors
  • Integrated current sense functionality
    • No sense resistors required
    • ±7.5% Full-scale current accuracy
  • 4.5 to 48V Operating supply voltage range
  • Multiple control interface options
    • PHASE/ENABLE
    • PWM
  • Smart tune decay technology, fixed slow, fast, and mixed decay options
  • 900mΩ HS + LS at 24V, 25°C low RDS(ON)
  • 2.4A peak, 1.5A Full-Scale, 1.1A RMS high current capacity per bridge
  • Configurable off-time PWM chopping
    • 7, 16, 24, or 32µs
  • Supports 1.8V, 3.3V, 5.0V logic inputs
  • Low-current sleep mode (2µA)
  • Spread-spectrum clocking for low electromagnetic interference (EMI)
  • Small package and footprint
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal shutdown (OTSD)
    • Fault condition output (nFAULT)

Applications

  • Printers and scanners
  • ATMs, currency counters, and EPOS
  • Office and home automation
  • Factory automation and robotics
  • Major and small home appliances
  • IP network camera and video conferencing
  • Vacuum, humanoid, and toy robotics

Simplified Schematics

Schematic - Texas Instruments DRV8436E/DRV8436P Dual H-Bridge Motor Drivers

Schematic - Texas Instruments DRV8436E/DRV8436P Dual H-Bridge Motor Drivers

Texas Instruments DRV8436E/DRV8436P Dual H-Bridge Motor Drivers