DRV8704 - DRV8704 双通道 H 桥 PWM 栅极驱动器

DRV8704是TI德州仪器公司的一款有刷直流栅极驱动器产品，DRV8704是DRV8704 双通道 H 桥 PWM 栅极驱动器，本站介绍了DRV8704的封装应用图解、特点和优点、功能等，并给出了与DRV8704相关的TI元器件型号供参考。

DRV8704 - DRV8704 双通道 H 桥 PWM 栅极驱动器 - 有刷直流栅极驱动器 - 有刷直流(BDC)驱动器 - 德州仪器

产品特性

Pulse Width Modulation (PWM) Motor Driver
- Drives External N-Channel MOSFETs
- PWM Control Interface for Dual DC Motors
- Supports 100% PWM Duty Cycle
8-V to 52-V Operating Supply Voltage Range
Adjustable Gate Drive (4 Levels)
- 50-mA to 200-mA Source Current
- 100-mA to 400-mA Sink Current
Integrated PWM Current Regulation
Flexible Decay Modes
- Automatic Mixed Decay Mode
- Slow Decay
- Fast Decay
- Mixed Decay (Adjustable Percent Fast)
Highly Configurable SPI
Torque DAC to Digitally Scale Current
Low-Current Sleep Mode (65 μA)
5-V, 10-mA LDO Regulator
Thermally-Enhanced Surface-Mount Package
- 38-Pin HTSSOP (PowerPAD)

SPACER

Protection Features
- VM Undervoltage Lockout (UVLO)
- Gate Driver Fault (PDF)
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)
- Fault Condition Indication Pin (nFAULT)
- Fault Diagnostics through SPI

产品应用

Automatic Teller and Money Handling Machines
Office Automation Machines
Factory Automation and Robotics
Textile Machines

产品说明

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).

Device Information (1)

PART NUMBER	PACKAGE	BODY SIZE (NOM)
DRV8704	HTSSOP (38)	9.70 mm × 4.40 mm

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