TPS22945
- Input Voltage Range: 1.62 V to 5.5 V
- Low ON resistance
- rON = 0.4 Ω at VIN = 5.5 V
- rON = 0.5 Ω at VIN = 3.3 V
- rON = 0.6 Ω at VIN = 2.5 V
- rON = 0.8 Ω at VIN = 1.8 V
- Minimum Current Limit: 40 mA or 100 mA
- Undervoltage Lockout (UVLO)
- Thermal Shutdown
- Shutdown Current < 1 µA
- Fast Current Limit Response Time
- Fault Blanking
- Auto Restart
- 1.8-V Compatible Control Input Thresholds
- ESD Performance Tested Per JESD 22
- 4000-V Human-Body Model
(A114-B, Class II) - 1000-V Charged-Device Model (C101)
- 4000-V Human-Body Model
- Tiny SC-70 (DCK) Package
- UL Recognized Component (UL File 169910)
- Evaluated to IEC 60950-1, Ed 2, Am1, Annex CC,
Test Program 2 with CB Report
The TPS22941/2/3/4/5 load switches provide protection to systems and loads in high-current conditions. The devices contain a 0.4-Ω current-limited P-channel MOSFET that can operate over an input voltage range of 1.62 V to 5.5 V. Current is prevented from flowing when the MOSFET is off. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals. The TPS22941/2/3/4/5 includes thermal shutdown protection that prevents damage to the device when a continuous over-current condition causes excessive heating by turning off the switch.
These devices provide an integrated, robust solution to provide current limiting the output current to a safe level by switching into a constant-current mode when the ouptut load exceeds the current-limit threshold. The OC logic output asserts low during overcurrent, undervoltage, or overtemperature conditions. These additional features make the TPS22941/2/3/4/5 an ideal solution for applications where current limiting is necessary.
This family of devices are available in a SC70-5 (DCK) package. It is characterized for operation over the free-air temperature range of –40°C to 85°C.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS2294x Low-input-voltage Current-limited Load Switches With Shut Off And Auto-Restart Feature datasheet (Rev. D) | PDF | HTML | 2014年 7月 10日 |
| E-book | 11 Ways to Protect Your Power Path | 2019年 7月 3日 | ||
| Application note | Load Switch Thermal Considerations (Rev. A) | 2018年 10月 11日 | ||
| Application note | Basics of Load Switches (Rev. A) | 2018年 9月 5日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Technical article | How to use load switches and eFuses in your set-top box design | PDF | HTML | 2017年 11月 23日 | |
| Application note | Selecting a Load Switch to Replace a Discrete Solution | 2017年 4月 30日 | ||
| Application note | Timing of Load Switches | 2017年 4月 27日 | ||
| Application note | Managing Inrush Current (Rev. A) | 2015年 5月 28日 | ||
| User guide | Using the TPS22945EVM-082 Single Channel Current Limited Load Switch IC | 2014年 9月 2日 |
設計與開發
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TPS22945EVM-082 — TPS22945 評估模組
The TPS22945EVM-082 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS22945 load switch. The VIN and VOUT connections to the device and the PCB layout routing provide a low resistance pathway into and out of the device under test. Test point connections allow the (...)
TPS22945 Unencrypted PSpice Transient Model Package (Rev. B)
TIDA-01451 — 適用於機上盒的電源開關參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-SC70 (DCK) | 5 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。