TPS22919
- Input operating voltage range (VIN):
1.6 V to 5.5 V - Maximum continuous current (IMAX): 1.5 A
- On-Resistance (RON):
- 5-V VIN: 89 mΩ (typical)
- 3.6-V VIN: 90 mΩ (typical)
- 1.8-V VIN: 105 mΩ (typical)
- Output short protection (ISC): 3 A (typical)
- Low power consumption:
- ON state (IQ): 8 µA (typical)
- OFF state (ISD): 2 nA (typical)
- Smart ON pin pull down (RPD):
- ON ≥ VIH (ION): 100 nA (maximum)
- ON ≤ VIL (RPD): 530 kΩ (typical)
- Slow Turn ON timing to limit inrush current
(tON):
- 5.0 V Turn ON time (tON):
1.95 ms at 3.2 mV/µs - 3.6 V Turn ON time (tON):
1.75 ms at 2.7 mV/µs - 1.8 V Turn ON time (tON):
1.5 ms at 1.8 mV/µs
- 5.0 V Turn ON time (tON):
- Adjustable output discharge and fall time:
- Internal QOD resistance = 24 Ω (typical)
The TPS22919 device is a small, single channel load switch with controlled slew rate. The device contains an N-channel MOSFET that can operate over an input voltage range of 1.6 V to 5.5 V and can support a maximum continuous current of 1.5 A.
The switch ON state is controlled by a digital input that is capable of interfacing directly with low-voltage control signals. When power is first applied, a Smart Pull Down is used to keep the ON pin from floating until system sequencing is complete. Once the pin is deliberately driven High (>VIH), the Smart Pull Down will be disconnected to prevent unnecessary power loss.
The TPS22919 load switch is also self-protected, meaning that it will protect itself from short circuit events on the output of the device. It also has thermal shutdown to prevent any damage from overheating.
TPS22919 is available in a standard SC-70 package characterized for operation over a junction temperature range of –40°C to 125°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 | TPS22919 5.5 V, 1.5 A, 90-mΩ Self-Protected Load Switch with Controlled Rise Time 数据表 (Rev. B) | PDF | HTML | 2019-5-3 | ||
| 证书 | TPS22919EVM EU Declaration of Conformity (DoC) | 2023-5-25 | ||||
| 应用手册 | 设计一种成本低、精度高的红外测温仪 | PDF | HTML | 英语版 | 2021-5-26 | ||
| 电子书 | 11 Ways to Protect Your Power Path | 2019-7-3 | ||||
| 应用简报 | Making the Switch to an Integrated Load Switch | 2019-6-11 | ||||
| 应用手册 | Integrated Load Switches Versus Discrete MOSFETs (Rev. A) | 2019-5-6 | ||||
| 技术文章 | What’s with chirping smoke detectors? | PDF | HTML | 2019-3-6 | |||
| 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 | ||||
| 技术文章 | Don’t leave it floating! Power off your outputs with quick output discharge | PDF | HTML | 2016-12-9 | |||
| 技术文章 | When to use load switches in place of discrete MOSFETs | PDF | HTML | 2016-2-3 | |||
| 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)。
TPS22919EVM — TPS22919 5.5V、1.5A、100mΩ 导通电阻负载开关评估模块
TPS22919 评估模块 (EVM) 是经过封装测试的电路,用于评估 TPS22919 负载开关。该 TPS22919EVM 可让用户在不同的负载条件下(0A 至 1.5A)向 TPS22919 器件施加不同的输入电压(1.6V 至 5.5V)。可轻松、准确地对导通电阻、上升时间和输出下拉电阻等参数进行评估。
TIDA-00420 — 基于 ADC、数字隔离、宽输入、16 通道、交流/直流二进制输入参考设计
此参考设计展示了一种经过成本优化、基于可扩展 ADC 且具有增强型隔离功能的交流/直流二进制输入模块 (BIM) 架构。10 位或 12 位 SAR ADC 的 16 个通道用于感应多个二进制输入。运算放大器除了使每通道成本保持较低之外,还为每个输入提供了出色的信号调节。数字隔离器(基础型或增强型)用于隔离主机 MCU 或处理器。支持对温度、湿度和磁场的测量以用于诊断。具有可配置输出的增强型隔离直流/直流电源可为二进制模块提供所需的电源。
TIDA-010070 — 适用于低压伺服驱动器、具有保护功能的直流总线输入电源和控制电源参考设计
TIDA-010224 — 可延长电池寿命的低功耗无线摄像头参考设计
处理器具有 Wi-Fi® 连接器件,可确保安全高质量的实时视频流式传输和双向音频流式传输,还可以实现降噪和回声消除。该设计包括红外 (IR) LED 和 IR 截止滤光片,以实现夜视功能。
TIDA-01599 — 适用于工业驱动器且经过 TÜV SÜD 评估的安全转矩关闭 (STO) 参考设计 (IEC 61800-5-2)
TIDA-050027 — 具有灵活分区以尽可能实现节能的多轨电视电源参考设计
TIDA-050027 参考设计是适用于电视 (TV) 平台的配电解决方案。通过提供模拟常用电压轨和外设的配置,该设计可以用作包含 LCD 和 OLED 电视在内的多种电视电源架构的参考设计。在输入方面,电子保险丝用于短路保护,而高效的降压转换器为内核轨、常开电源轨和外设轨提供所需的电源。此外,低 IQ 低压降稳压器 (LDO) 为某些外设提供低噪声数字电源轨。除了这些电源元件,负载开关通过受控压摆率控制电压,实现电源时序和节省功耗。此外,集成负载开关提供自我保护,同时减少 BOM 数量并缩小解决方案尺寸。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SOT-SC70 (DCK) | 6 | Ultra Librarian |
订购和质量
推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。