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DRV8804

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65V, 2.3A 4 channel low-side driver with integrated SPI and overcurrent protection

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数据表

DRV8804

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产品详情

Vs (min) (V) 8.2 Vs ABS (max) (V) 65 Full-scale current (A) 1.5 Peak output current (A) 2.3 RDS(ON) (HS + LS) (mΩ) 500 Control mode Serial Control interface Serial Rating Catalog Operating temperature range (°C) -40 to 125
Vs (min) (V) 8.2 Vs ABS (max) (V) 65 Full-scale current (A) 1.5 Peak output current (A) 2.3 RDS(ON) (HS + LS) (mΩ) 500 Control mode Serial Control interface Serial Rating Catalog Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 16 32 mm² 5 x 6.4 SOIC (DW) 20 131.84 mm² 12.8 x 10.3

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 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).

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).
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技术文档

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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）。

评估板

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。

用户指南: PDF
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参考设计

TIDA-00236 — 用于 PLC 的低侧栅 0.5A、8 通道数字输出模块

数字输出模块是一种位于 PLC/PAC 或 DCS 中的标准组件，用于控制传动器、电机以及其他电阻、电容或电感负载。客户将受益于这种集成式保护型低侧驱动器以及能够节省引脚和隔离通道的低引脚数控制接口。此设计具有尺寸小的特点，能够在所有 8 个通道上提供 0.5A 而不影响热管理。
设计指南: PDF
原理图: PDF
封装 引脚 CAD 符号、封装和 3D 模型
HTSSOP (PWP) 16 Ultra Librarian
SOIC (DW) 20 Ultra Librarian
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

包含信息：
  • 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
包含信息：
  • 制造厂地点
  • 封装厂地点

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