LMI800
- Isolated floating hotswap controller
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Support 2-wire, 3-wire system architectures with high and low-side configurations
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- Integrated Isolated Power Supply for hotswap controller bias
- GND referrenced signals with Reinforced insulation to 800V
- PGOOD, Fault assertion on SMBA and PMBus Telemetry
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Robust isolation barrier:
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High lifetime at up to 1000VDC working voltage
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Up to 5000VRMS isolation rating
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Up to 10.4kV surge capability
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SYNC pin for coordination between high and low side hotswap controllers
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DISC pin for output capacitor discharge control
- Strong gate pull down (1.2A) for fast turn OFF
- Robust short circuit protection (360ns)
- Failed FET detection
- Programable UV, OV, tFAULT thresholds
- External FET temperature sensing
- PMBus® interface for telemetry, control, configuration and debug
- On chip EEPROM nonvolatile memory for configuration
- Precision VIN, VOUT, IIN, PIN, VAUX monitoring V (<±1.5%); I (<±1%); P (<±2%)
- Power cycle with a single command
- Blackbox fault recording of multiple events with relative time stamp stored in internal EEPROM
- 12-bit ADC with 250kHz sampling rate
- –40°C < TJ < 125°C operation
The LMI800PS is high voltage isolated floating hotswap controller designed to support 2-wire and 3-wire system architecture with high and low side configuration for server and datacentres. This device requires only single power supply input referred to user ground and utlizes inbuilt isolated power supply for the hotswap controller bias. All user interface are reinforced isolated to 800V and ensured alignment with UL safety standards.
The LMI800PS comes with SYNC pin for coordination between high and low side hotswap controllers which provides user a liberty to optimize the FET rating. The DISC pin provides control feature to discharge the output load capacitor during system plug out.
It has Programmable power limit threshold along with adjustable fault time (tFAULT) which further limits maximum power dissipation and ensure FET SOA protection under all critical events.
An integrated PMBus™interface enables remote monitoring, control, and configuration of the system in real time. Key parameters can be accessed remotely for telemetry, and various thresholds can be configured through PMBus or stored in internal non volatile memory.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | LMI800PS High Voltage Isolated Hotswap Controller with PMBus Interface datasheet | PDF | HTML | 2026. 10. 6 | |
| 백서 | 고전압 DC 전원 공급 방식 AI 서버용 핫 스왑 솔루션 | PDF | HTML | 2026. 10. 16 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
LMI800PSEVM — LMI800 평가 모듈
LMI800PS 평가 모듈(EVM)에는 LMI800PS 핫 스왑 컨트롤러를 위한 평가 및 레퍼런스 회로가 포함되어 있습니다. LMI800PS 장치는 고성능 핫 스왑 컨트롤러와 PMBus 인터페이스를 결합하여 800V 백플레인 전원 버스 또는 PSU에 연결된 시스템의 전기 작동 조건을 정확하게 측정, 보호 및 제어합니다.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SSOP (DFP) | 40 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.