DRV8804
The following Figure shows how two DRV81646 devices can be connected in daisy chain to leverage GPIO/ isolation saving. SDO pin of one device is fed to the SDI pin of the following device in the chain
To write to two devices , 8 bits of data need to be written as shown in Figure . Note SDO is sent out on Negedge of SCLK. SDO is ready to be sampled on following posedge of SCLK. The value on SDI pin is also sampled on posedge of SCLK. Note Latch need not be brought low to initiate a shift in of data. A posedge of Latch is needed to Latch the data shifted in to Outputs.
The DRV8804 provides a 4-channel low-side driver with overcurrent protection. The device has built-in diodes to clamp turnoff transients generated by inductive loads and can be used to drive unipolar stepper motors, DC motors, relays, solenoids, or other loads.
In the SOIC (DW) package, the DRV8804 can supply up to 1.5A (one channel on) or 800mA (all channels on) continuous output current per channel, at 25°C. In the HTSSOP (PWP) package, the device can supply up to 2A (one channel on) or 1A (four channels on) continuous output current per channel, at 25°C . In the SOT-23-THN (DYZ) package, the DRV8804 can supply up to 1.9A (one channel on) or 900mA (all channels on) continuous output current per chanel, at 25°C with proper PCB heatsinking.
A serial interface is provided including a serial data output, which can be daisy-chained to control multiple devices with one serial interface.
Internal shutdown functions are provided for overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature, and faults are indicated by a fault output pin.
The DRV8804 is available in a 20-pin, thermally-enhanced SOIC package , 16-pin HTSSOP package and 16-pin SOT-23-THN package (Eco-friendly: RoHS & no Sb/Br).
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | DRV8804 Quad Serial Interface Low-Side Driver IC 数据表 (Rev. G) | PDF | HTML | 2024年 12月 10日 | ||
应用手册 | 了解电机驱动器电流额定值 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2024年 8月 6日 | |
应用手册 | 使用电机驱动器驱动螺线管 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2022年 7月 25日 | |
应用手册 | How to Drive Unipolar Stepper Motor with the DRV8xxx | PDF | HTML | 2021年 12月 3日 | |||
应用手册 | 电机驱动器电路板布局的最佳实践 (Rev. B) | PDF | HTML | 英语版 (Rev.B) | PDF | HTML | 2021年 8月 5日 | |
应用手册 | Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) | PDF | HTML | 2021年 7月 22日 | |||
技术文章 | Drive unipolar stepper motors as bipolar stepper motors with a simple wiring recon | PDF | HTML | 2020年 4月 9日 | |||
应用手册 | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018年 7月 6日 | ||||
用户指南 | DRV8803-04-05-06 EVM GUI (Rev. B) | 2017年 4月 26日 | ||||
更多文献资料 | TM4C123x Stepper Motor Control Product Summary | 2015年 7月 6日 | ||||
应用手册 | 所选封装材料的热学和电学性质 | 2008年 10月 16日 | ||||
应用简报 | PowerPAD® 轻松实现 (Rev. B) | 2004年 5月 12日 |
设计和开发
如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。
DRV8804EVM — DRV8804 评估模块
DRV8804 评估模块包含四路低侧电机驱动器(具有串行控制接口),可用于驱动单极步进电机(可驱动多达 4 个直流电机或螺线管等其他负载)。凭借 DRV8804EVM,设计人员能在其特定应用中快速轻松地评估 DRV8804 电机驱动器的性能。该 EVM 附带板载 MSP430 微处理器(已进行预编程,适合独立操作)。由 TPS7A4001 提供 MSP430 调节电压。此 EVM 可在 8.2V 至 60V 的电源电压下工作。
TIDA-00236 — 用于 PLC 的低侧栅 0.5A、8 通道数字输出模块
封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
HTSSOP (PWP) | 16 | Ultra Librarian |
SOIC (DW) | 20 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点
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