DRV120
- Integrated MOSFET With PWM to Control Solenoid Current
- Integrated Sense Resistor for Regulating Solenoid Current
- Fast Ramp-Up of Solenoid Current to Guarantee Activation
- Solenoid Current is Reduced in Hold Mode for Lower Power and Thermal Dissipation
- Peak Current, Keep Time at Peak Current, Hold Current, and PWM Clock Frequency Can Be Set Externally. They Can Also Be Operated at Nominal Values Without External Components.
- Internal Supply Voltage Regulation
- Up to 28-V External Supply
- Protection
- Thermal Shutdown
- Undervoltage Lockout (UVLO)
- Maximum Ramp Time
- Optional STATUS Output
- Operating Temperature Range: –40ºC to 105ºC
- 8-Pin and 14-Pin TSSOP Package Options
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The DRV120 device is a PWM current driver for solenoids. The device is designed to regulate the current with a well-controlled waveform to guarantee activation and to reduce power dissipation at the same time. The solenoid current is ramped up fast to ensure opening of the valve or relay. After the initial ramping, solenoid current is kept at peak value to ensure the correct operation, after which it is reduced to a lower hold level in order to avoid thermal problems and reduce power dissipation.
The peak current duration is set with an external capacitor. The current ramp peak and hold levels, as well as PWM frequency, can independently be set with external resistors. External setting resistors can also be omitted, if the default values for the corresponding parameters are suitable for the application.
The DRV120 can operate from an external 6-V to
28-V supply.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | DRV120 Single-Channel Relay, Solenoid, Valve Low-Side Driver With Current Regulation 数据表 (Rev. C) | PDF | HTML | 2016-6-21 | ||
| 技术文章 | Liberate your solenoid or relay from the bonds of supply voltage | PDF | HTML | 2017-3-16 |
设计与开发
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）。
DRV120EVM — DRV120 评估模块
DRV120EVM 采用 DRV120 节能型电流控制螺线管驱动器的 DRV120A 14 引脚 TSSOP 封装版本。此 EVM 由 6V 至 26V 直流电源供电，可实现全额定性能，轻松控制所有可调节器件参数，并支持通过连接器连接任意螺线管。
本用户指南介绍了德州仪器 (TI) DRV110 和 DRV120 评估模块 (EVM) 的特性、运行和使用情况。此 EVM 旨在帮助用户轻松评估和测试 DRV120 在驱动螺线管时的运行情况和功能。本用户指南包括硬件设置说明、EVM 印刷电路板布局、原理图和物料清单。
SLIC024 — DRV1xx Device Parameter Selector
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TSSOP (PW) | 14 | Ultra Librarian |
| TSSOP (PW) | 8 | Ultra Librarian |
订购和质量
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