TPS2480
- Programmable FET Power Limit
- External N-Channel FET Gate Drive
- Programmable Fault Timer
- Open Drain Power Good Output
- I2C monitoring of Current, Voltage and Power
- High Accuracy Current Monitoring
(1% over temperature) - Dynamic Calibration
- 9-V to 26-V Input Range
- APPLICATIONS
- Servers
- Hard Drives
- Storage Networks
- Base Stations
The TPS2480/81 are designed to minimize inrush into applications and protect both the load and the FET from over-current or short circuit events. They control an external N-channel MOSFET switch and provide accurate voltage, current, and power monitoring using a configurable 12 bit A/D converter via an I2C interface. The independently adjustable power limit and current limit ensure that the external MOSFET operates within the FETs Safe Operating Area (SOA).
The flexible design includes a Power Good output which can be used for sequencing as well as load fault indication. An external timer capacitor can set the fault time to help immunize the system from nuisance shutdowns during brief transient events.
The monitoring circuitry incorporates a high accuracy A/D converter which can be configured from a 9 to 13 bit converter. The internal gain of the A/D can be configured to scale the current, voltage and power readings to the needs of the application. An additional multiplying register calculates power in Watts. The I2C interface uses multi-level addressing to allow up to 16 programmable addresses.
The TPS2480 and TPS2481 monitors shunts on buses that can vary from 9 V to 26 V and with a few external components it is possible to monitor buses as high as 80 V.
The monitoring circuitry uses a single 3-V to 5.5-V supply, drawing a maximum of 1 mA of supply current.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | Positive Voltage Hotswap Controller and I2C Current Monitor datasheet (Rev. B) | 2010年 10月 29日 | |
Application note | Minimizing System Down-time with Smart eFuses | 2019年 6月 12日 | ||
Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
Selection guide | Hot Swap Selection Tool | 2015年 7月 28日 | ||
EVM User's guide | TPS2480 and TPS2481 Evaluation Module User's Guide (Rev. A) | 2010年 6月 18日 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
TPS2480-81-90-91-92-93_CALC — TPS249x8x Design Calculator Rev B
支援產品和硬體
產品
eFuses 和熱插拔制器
硬體開發
開發板
軟體
計算工具
TVS-RECOMMENDATION-CALC — TVS diode recommendation tool
支援產品和硬體
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
TSSOP (PW) | 20 | 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。