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 FET’s 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.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | Positive Voltage Hotswap Controller and I2C Current Monitor datasheet (Rev. B) | 2010/10/29 | |
| Application note | Minimizing System Down-time with Smart eFuses | 2019/06/12 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
| Selection guide | Hot Swap Selection Tool | 2015/07/28 | ||
| EVM User's guide | TPS2480 and TPS2481 Evaluation Module User's Guide (Rev. A) | 2010/06/18 |
설계 및 개발
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하드웨어 개발
평가 보드
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| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| TSSOP (PW) | 20 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
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