Catalog
60-V dual H-bridge smart gate driver
Key Features
• Pulse Width Modulation (PWM) Motor DriverDrives External N-Channel MOSFETsPWM Control Interface for Dual DC MotorsSupports 100% PWM Duty Cycle8-V to 52-V Operating Supply Voltage RangeAdjustable Gate Drive (4 Levels)50-mA to 200-mA Source Current100-mA to 400-mA Sink CurrentIntegrated PWM Current RegulationFlexible Decay ModesAutomatic Mixed Decay ModeSlow DecayFast DecayMixed Decay (Adjustable Percent Fast)Highly Configurable SPITorque DAC to Digitally Scale CurrentLow-Current Sleep Mode (65 µA)5-V, 10-mA LDO RegulatorThermally-Enhanced Surface-Mount Package38-Pin HTSSOP (PowerPAD)Protection FeaturesVM Undervoltage Lockout (UVLO)Gate Driver Fault (PDF)Overcurrent Protection (OCP)Thermal Shutdown (TSD)Fault Condition Indication Pin (nFAULT)Fault Diagnostics through SPIPulse Width Modulation (PWM) Motor DriverDrives External N-Channel MOSFETsPWM Control Interface for Dual DC MotorsSupports 100% PWM Duty Cycle8-V to 52-V Operating Supply Voltage RangeAdjustable Gate Drive (4 Levels)50-mA to 200-mA Source Current100-mA to 400-mA Sink CurrentIntegrated PWM Current RegulationFlexible Decay ModesAutomatic Mixed Decay ModeSlow DecayFast DecayMixed Decay (Adjustable Percent Fast)Highly Configurable SPITorque DAC to Digitally Scale CurrentLow-Current Sleep Mode (65 µA)5-V, 10-mA LDO RegulatorThermally-Enhanced Surface-Mount Package38-Pin HTSSOP (PowerPAD)Protection FeaturesVM Undervoltage Lockout (UVLO)Gate Driver Fault (PDF)Overcurrent Protection (OCP)Thermal Shutdown (TSD)Fault Condition Indication Pin (nFAULT)Fault Diagnostics through SPI
Description
AI
The DRV8704 is a dual-brushed motor controller for industrial equipment applications. The device controls external N-channel MOSFETs configured as two H-bridges.
Motor current can be accurately controlled using adaptive blanking time and various current decay modes, including an automatic mixed decay mode.
A simple PWM interface allows easy interfacing to controller circuits. A SPI serial interface is used to program the device operation. Output current (torque), gate drive settings, and decay mode are all programmable through a SPI serial interface.
Internal shutdown functions are provided for overcurrent protection, short-circuit protection, gate driver faults, undervoltage lockout (UVLO), and overtemperature. Fault conditions are indicated by a FAULTn pin, and each fault condition is reported by a dedicated bit through SPI.
The DRV8704 is packaged in a PowerPAD™ 38-pin HTSSOP package with thermal pad (Eco-friendly: RoHS & no Sb/Br).
The DRV8704 is a dual-brushed motor controller for industrial equipment applications. The device controls external N-channel MOSFETs configured as two H-bridges.
Motor current can be accurately controlled using adaptive blanking time and various current decay modes, including an automatic mixed decay mode.
A simple PWM interface allows easy interfacing to controller circuits. A SPI serial interface is used to program the device operation. Output current (torque), gate drive settings, and decay mode are all programmable through a SPI serial interface.
Internal shutdown functions are provided for overcurrent protection, short-circuit protection, gate driver faults, undervoltage lockout (UVLO), and overtemperature. Fault conditions are indicated by a FAULTn pin, and each fault condition is reported by a dedicated bit through SPI.
The DRV8704 is packaged in a PowerPAD™ 38-pin HTSSOP package with thermal pad (Eco-friendly: RoHS & no Sb/Br).
