TPS2051
- 135-m -Maximum (5-V Input) High-Side MOSFET Switch
- 500 mA Continuous Current
- Short-Circuit and Thermal Protection
- Overcurrent Logic Output
- Operating Range...2.7 V to 5.5 V
- Logic-Level Enable Input
- 2.5-ms Typical Rise Time
- Undervoltage Lockout
- 10 uA Maximum Standby Supply Current
- Bidirectional Switch
- Available in 8-pin SOIC and PDIP Packages
- Ambient Temperature Range, -40°C to 85°C
- 2-kV Human-Body-Model, 200-V Machine-Model ESD Protection
The TPS2041 and TPS2051 power distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. The TPS2041 and the TPS2051 are 135-m N-channel MOSFET high-side power switches. Each switch is controlled by a logic enable that is compatible with 5-V logic and 3-V logic. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.
When the output load exceeds the current-limit threshold or a short is present, the TPS2041 and TPS2051 limit the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OC\) logic output low. When continuous heavy overloads and short circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off until valid input voltage is present.
The TPS2041 and TPS2051 are designed to limit at 0.9-A load. These power distribution switches are available in 8-pin small-outline integrated circuit (SOIC) and 8-pin plastic dual-in-line packages (PDIP) and operate over an ambient temperature range of -40°C to 85°C.
The D package is available taped and reeled. Add an R suffix to device type (e.g., TPS2041DR)
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | TPS2041, TPS2051 - Power-Distribution Switches datasheet (Rev. A) | 1998年 10月 14日 | |
Certificate | US-36986-UL Certificate of Compliance IEC 62368-1 | 2021年 3月 12日 | ||
Technical article | How to design an infrared thermometer quickly | PDF | HTML | 2020年 4月 7日 | |
Application note | TPS202x/3x And TPS204x/5x USB Power Distribution | 1998年 10月 16日 |
設計與開發
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封裝 | 引腳 | 下載 |
---|---|---|
SOIC (D) | 8 | 檢視選項 |
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
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點