Microchip Technology MIC2586-1YM

General Description

The MIC2586 and MIC2586R are single-channel positive voltage hot swap controllers/sequencers designed to provide safe insertion and removal of boards for systems that require live (always-powered) backplanes. These devices use few external components and act as controllers for external N-channel power MOSFET devices to provide inrush current control and output voltage slew rate control. Overcurrent fault protection is provided via programmable analog foldback current limit circuitry equipped with a programmable overcurrent filter.

Features

• Operates from +10V to +80V with 100V ABS MAX operation
• Industrial temperature specifications at VCC = +24V and VCC = +48V
• Programmable current limit with analog foldback
• Active current regulation minimizes inrush current
• Electronic circuit breaker for overcurrent fault protection
- Output latch off (MIC2586) or
- Output auto-retry (MIC2586R)
• Fast responding circuit breaker (< 2µs) to short circuit loads
• Programmable input undervoltage lockout
• Fault Reporting:
Three Open-drain “Power-is-Good” outputs for enabling DC/DC converter(s)
- Active-HIGH: MIC2586-1/MIC2586R-1
- Active-LOW: MIC2586-2/MIC2586R-2

Applications

• General-purpose hot board insertion
• High-voltage, high-side electronic circuit breaker
• +12V/+24V/+48V Distributed Power Systems
• +24V/+48V Industrial/Alarm Systems
• Telecom Systems
• Medical systems