TPS22970
- Input Voltage Range (VIN): 0.65 V to 3.6 V
- On-Resistance
- RON = 4.7 mΩ (Typical) at VIN ≥ 1.8 V
- RON = 5.1 mΩ (Typical) at VIN = 1.05 V
- RON = 6.4 mΩ (Typical) at VIN = 0.65 V
- Maximum Continuous Switch Current (IMAX): 4 A
- ON State (IQ): 30 µA (Typical) at VIN > 1.2 V
- OFF State (ISD): 1 µA (Typical) at VIN > 1.8 V
- Controlled Slew Rate to Avoid Inrush Current
- 3.6 V Turn-ON time (tON): 1530 µs
- 0.65 V Turn-ON time (tON): 815 µs
- Low Threshold Enable (ON) Supports Use of Logic as Low as 0.9 V (VIH) of Logic
- Thermal Shutdown (TSD)
- Quick Output Discharge (QOD): 150-Ω (Typical)
The TPS22970 is a small, space-saving load switch with controlled Turn-ON to reduce inrush current. The device contains an N-channel MOSFET that can operate over an input voltage range of 0.65 V to 3.6 V and pulsed switch currents up to 4 A. An integrated charge pump biases the NMOS switch in order to achieve a minimum switch ON resistance (RON). The switch is controlled by an on and off input (ON), which is capable of interfacing directly with low-voltage control signals.
The TPS22970 is capable of thermal shutdown when the junction temperature is above the threshold, turning the switch off. The switch turns on again when the junction temperature stabilizes to a safe range.
The TPS22970 has a 150-Ω on-chip resistor for quick discharge of the output when switch is disabled to avoid any unknown state caused by floating supply to the downstream load.
The TPS22970 has an internally controlled rise time in order to reduce inrush current.
The TPS22970 is available in an ultra-small, space saving 8-pin WCSP package and is characterized for operation over the free-air temperature range of –40°C to +105°C.
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 | TPS22970 3.6-V, 4-A, 4.7-mΩ On-Resistance Load Switch 数据表 (Rev. A) | PDF | HTML | 2017-7-20 | ||
| 应用手册 | Load Switch Thermal Considerations (Rev. A) | 2018-10-11 | ||||
| 应用手册 | Basics of Load Switches (Rev. A) | 2018-9-5 | ||||
| 应用手册 | Selecting a Load Switch to Replace a Discrete Solution | 2017-4-30 | ||||
| 应用手册 | Timing of Load Switches | 2017-4-27 | ||||
| 应用手册 | Fundamentals of On-Resistance in Load Switches | 2016-6-9 | ||||
| 应用手册 | Quiescent Current vs Shutdown Current for Load Switch Power Consumption | 2016-3-30 | ||||
| 应用手册 | Managing Inrush Current (Rev. A) | 2015-5-28 |
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）。
TPS22970EVM — TPS22970 3.6V、4A、5.3mΩ 导通电阻负载开关评估模块
TPS22970 评估模块 (EVM) 是一个经全面封装测试的电路，用于评估 TPS22970 负载开关。TPS22970EVM 可让用户在不同负载条件下（0A 至 4A）向 TPS22970 施加不同的输入电压（0.65V 至 3.6V）。在该 EVM 上可监测输出、输入和开关波形。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| DSBGA (YZP) | 8 | Ultra Librarian |
订购和质量
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