DRV8808 具有 DC-DC 转换器的组合电机驱动器
DRV8808 描述
The DRV8808 provides the integrated motor driver solution for printers. The chip has three full H-bridges and three buck DC-DC converters.
The output driver block for each consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings. The device can be configured to utilize internal or external current sense for winding current control.
The SPI input pins are 3.3-V compatible and have 5-V-tolerant inputs.
The DRV8808 has three dc-dc switch-mode buck converters to generate a programmable output voltage from 1 V up to 90% of VM, with up to 1.35-A load current capability.
The device is configured using the CSELECT terminal at start up, and serial interface during run time
|
DRV8808 |
| Vs(Min)(V) |
7 |
| Vs(Max)(V) |
40 |
| Output Current(Min)(A) |
1.2 |
| rDS(on)(Ohms) |
0.5 |
| Switching Frequency (Single-Ended)(kHz) |
110 |
| Operating Temperature Range(°C) |
-40 to 85 |
| Pin/Package |
48HTSSOP |
DRV8808 特性
- Three DC Motor Drivers
- Up to 2.5-A Current Chopping
- Low Typical ON Resistance (RDSON = 0.5 Ohm at TJ = 25°C)
- Three Integrated DC-DC Converters
- ON/OFF Selectable Using CSELECT Pin and Serial Interface
- Outputs Configurable With External Resistor Network From 1 V
to 90% of VM Capability for All Three Channels
- 1.35-A Output Capability for All Three Channels
- One Integrated LDO Regulator
- Output Configurable With External Resistor Network from 1 V to 2.5 V
- 550-mA Output Capability
- 7-V to 40-V Operating Range
- Serial Interface for Communications
- Thermally-Enhanced Surface-Mount Package 48-Pin HTSSOP With PowerPAD
- Power-Down Function (Deep-Sleep Mode)
- Reset Signal Output (Active Low)
- Reset (All Clear) Control Input
DRV8808 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| DRV8808DCA |
ACTIVE |
-40 to 85 |
8.05 | 1ku |
HTSSOP (DCA) | 48 |
40 | TUBE |
|
| DRV8808DCAR |
ACTIVE |
-40 to 85 |
6.70 | 1ku |
HTSSOP (DCA) | 48 |
2000 | LARGE T&R |
|
DRV8808 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| DRV8808DCA |
TBD |
Call TI |
Call TI |
DRV8808DCA |
DRV8808DCA |
| DRV8808DCAR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
DRV8808DCAR |
DRV8808DCAR |
DRV8808 应用技术支持与电子电路设计开发资源下载
- DRV8808 数据资料 dataSheet 下载.PDF
- TI 德州仪器运动/电机控制产品选型与价格 . xls
- PowerPADTM Thermally Enhanced Package
(PDF 1040 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
- PowerPADTM Made Easy (PDF 57 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
DRV8808 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| DRV8808 评估模块 |
DRV8808EVM |
Texas Instruments |
开发电路板/EVM |