LM5068
- Safe Module Insertion and Removal from Live Backplanes
- In-Rush Current Limiting for Safe Board Insertion into Live Backplanes
- Fast Response to Over-Current Fault Conditions with Active Current Limiting
- -10V to -90V Input Range
- Programmable Under-Voltage/Over-Voltage Shutdown Protection with Adjustable Hysteresis
- Programmable Multi-Function Timer for Board Insertion De-Bounce Delay
- Fault Timer Avoids Nuisance Trips Caused by Short Duration Load Transients
- Active Gate Clamping During Initial Power Application
- Available in both Latched Fault and Automatic Re-Try Versions
- Available with either Active HIGH or Active LOW Power Good Flag
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The LM5068 hot-swap controller provides intelligent control of power supply connections during the insertion and removal of circuit cards powered by live system backplanes.
The LM5068 provides both in-rush current control and short-circuit protection functions, and limits power supply transients in the backplane caused by the insertion of additional circuit cards. The LM5068 controls the external N-Channel MOSFET to provide programmable load current limiting and circuit breaker functions using a single external current sense resistor. The LM5068 issues a power good (PWRGD) signal at the conclusion of a successful power-on sequence. Input over-voltage or under -voltage fault conditions will cancel the PWRGD indication.
The LM5068-1 and -2 indicate power-good as an open-drain active HIGH PWRGD state. The LM5068-3 and -4 indicate power-good as an open-drain active LOW PWRGD state. The LM5068-1 and -3 latch off after a fault condition is detected while the LM5068-2 and -4 continuously re-try at intervals set by a programmable timer.
The LM5068 is available in a VSSOP-8 package.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | LM5068 Negative Voltage Hot Swap Controller datasheet (Rev. C) | 2013/03/21 | |
Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
Selection guide | Hot Swap Selection Tool | 2015/07/28 | ||
EVM User's guide | AN-1326 LM5068 Evaluation Board (Rev. A) | 2013/05/06 |
설계 및 개발
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패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
VSSOP (DGK) | 8 | 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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