SLVSNZ8 October   2026 LMI800

ADVANCE INFORMATION  

  1.   1
  2. 1Features
  3. 2Applications
  4. 3Description
  5. 4Device and Documentation Support
    1. 4.1 Third-Party Products Disclaimer
    2. 4.2 Receiving Notification of Documentation Updates
    3. 4.3 Support Resources
    4. 4.4 Trademarks
    5. 4.5 Electrostatic Discharge Caution
    6. 4.6 Glossary
  6. 5Revision History
  7. 6Mechanical, Packaging, and Orderable Information
    1. 6.1 Package Option Addendum
    2. 6.2 Tape and Reel Information
    3. 6.3 Mechanical Data

3 Description

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.

Package Information
PART NUMBER PACKAGE(1) PACKAGE SIZE(2)

PLMI800PSDVVR

 DVV (SSOP 40) 10.65mm × 7.5mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
LMI800 Simplified SchematicLMI800