DRV8704
- 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)
- 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
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).
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | DRV8704 52-V Dual H-Bridge PWM Gate Driver datasheet | PDF | HTML | 2015年 10月 28日 |
| Application note | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 2021年 10月 14日 | |
| Application note | Cut-Off Switch in High-Current Motor-Drive Applications (Rev. A) | 2018年 8月 20日 | ||
| Application note | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018年 7月 6日 | ||
| Application brief | PowerPAD™ Made Easy (Rev. B) | 2004年 5月 12日 |
設計與開發
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DRV8704EVM — 雙有刷 DC 馬達閘極驅動器評估模組
The DRV8704 evaluation module (EVM) demonstrates the integrated current regulating capabilities and performance of the DRV8704 integrated circuit from Texas Instruments. The EVM includes the DRV8704 to control two brushed motors, a simple jumper connection scheme to route the DRV8704 inputs, a (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (DCP) | 38 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。