DRV8860
- 8-Channel Protected Low-side Driver
- Eight NMOS FETs with Overcurrent Protection
- Integrated Inductive Catch Diodes
- Serial Interface
- Open/Short Load Detection (DRV8860 only)
- Configurable 100% Output Timing
- Configurable PWM Duty Cycle
- Continuous Current Driving Capability
- 560 mA (Single Channel on) PW and PWP
- 200 mA (8 Channels on) PW
- 330 mA (8 Channels on) PWP
- Support Parallel Configuration
- 8 V to 38 V Supply Voltage Range
- Input Digital Noise Filter for Noise Immunity
- Internal Data Read Back Capability for Reliable
Control - Protection and Diagnostic Features
- Overcurrent Protection (OCP)
- Open Load Detection (OL)
- Overtemperature Shutdown (OTS)
- Undervoltage Lockout (UVLO)
- Individual Channel Status Report
- Fault Condition Alarm
The DRV8860 provides an 8-channel low side driver with overcurrent protection and open/shorted load detection. It has built-in diodes to clamp turn-off transients generated by inductive loads, and can be used to drive unipolar stepper motors, DC motors, relays, solenoids, or other loads.
The PWP package can supply up to 330 mA × 8 channel and The PW package can supply up to 200 mA × 8 channel continuous output current. A single channel can deliver up to 560 mA continuous output current.
A serial interface is provided to control the DRV8860 output drivers, configure internal setting register and read the fault status of each channel. DRV8860 devices can be daisy-chained together to use a single serial interface. Energizing-time and holding-PWM-Duty cycles are configurable through serial interface as well. These functions allow for cooler running than always-on solutions.
Internal shutdown functions are provided for overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature. DRV8860A does not include open load detection. Fault information for each channel can be read out through serial interface and indicated by an external fault pin.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | DRV8860x 38-V 8-Channel Serial Interface Low-Side Driver datasheet (Rev. E) | PDF | HTML | 2015/11/17 | ||
| 應用說明 | Using DRV to Drive Solenoids (Rev. A) | PDF | HTML | 2022/4/24 | |||
| 應用說明 | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 2021/10/14 | |||
| 應用說明 | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018/7/6 | ||||
| 更多文件說明 | TM4C123x Stepper Motor Control Product Summary | 2015/7/6 | ||||
| Application brief | PowerPAD™ Made Easy (Rev. B) | 2004/5/12 |
設計與開發
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DRV8860EVM — DRV8860EVM - 適用於具有序列介面之八路、低壓側驅動器的評估模組
The DRV8860 provides an 8-channel low side driver with comprehensive protection and diagnosis. It offers flexible output configuration options to support different levels of load current with a simple Serial interface, which supports daisy-chain connection for multiple devices. Built-in (...)
TIDA-00117 — 序列介面雙 8 通道繼電器、LED、步進驅動器
此參考設計包括雙 DRV8860 和 MSP430 經濟型產品線 MCU，為繼電器、LED 及單極步進馬達提供 16 通道低壓側驅動器解決方案。此解決方案可支援 8V 至 38V 的電壓範圍，每個通道提供 200mA 電流，具備並聯輸出功能，並具備短路防護及開路負載偵測。DRV8860 的序列介面與菊鍊連線可在最小化輸入 IO 的同時，最有效地擴展出通道數量。創新的節能時間和內部自動 PWM 占空比控制特別在驅動繼電器與電磁閥時，能顯著發揮節能功效。PWM 占空比控制功能也可用於 LED 亮度控制。此設計也包含全步進及半步進單極式步進馬達控制邏輯。驅動級具備整合式的短路、欠電壓與過熱防護。
TIDA-00206 — 具有串列介面的 LED 顯示驅動器參考設計
此參考設計採用低成本的 MSP430 微控制器與兩顆 DRV8860 八通道低壓側驅動器，驅動 8 組七段式數位顯示器並具備亮度控制功能。顯示模組憑藉 DRV8860 晶片的優勢，具備寬供電範圍、高電流驅動能力、PWM 亮度控制、序列菊鏈連接，以及可擴展輸出以驅動數百顆 LED 等特性。此參考設計和六種示範顯示模式隨板載 MCU 程式提供，並提供短路、欠電壓和過熱的整合式保護功能。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TSSOP (PW) | 16 | Ultra Librarian |
| HTSSOP (PWP) | 16 | Ultra Librarian |
訂購與品質
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。