TPS2051B
- 70-mΩ High-Side MOSFET
- 500-mA Continuous Current
- Thermal and Short-Circuit Protection
- Accurate Current Limit (0.75 A Minimum, 1.25 A Maximum)
- Operating Range: 2.7 V to 5.5 V
- 0.6-ms Typical Rise Time
- Undervoltage Lockout
- Deglitched Fault Report ( OC)
- No OC Glitch During Power Up
- Maximum Standby Supply Current: 1-µA (Single, Dual) or 2-µA (Triple, Quad)
- Ambient Temperature Range: –40°C to 85°C
- UL Recognized, File Number E169910
- Additional UL Recognition for TPS2042B and TPS2052B for Ganged Configuration
The TPS20xxB power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporates 70-mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. 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 device limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent ( OCx) 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 that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1 A (typical).
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS20xxB Current-Limited, Power-Distribution Switches datasheet (Rev. N) | PDF | HTML | 2023年 7月 17日 |
| Certificate | US-36986-UL Certificate of Compliance IEC 62368-1 | 2021年 3月 12日 | ||
| EVM User's guide | Single Channel Power-Distribution Switch EVM (Rev. B) | 2007年 12月 17日 | ||
| EVM User's guide | TPS2041B/51B EVM Power-Distribution Switch (Rev. A) | 2007年 6月 1日 | ||
| User guide | HPA228A/HPA240A Power-Distribution Switch | 2007年 3月 22日 |
設計與開發
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| 封裝 | 引腳 | 下載 |
|---|---|---|
| HVSSOP (DGN) | 8 | 檢視選項 |
| SOIC (D) | 8 | 檢視選項 |
| SOT-23 (DBV) | 5 | 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