Microchip Technology MIC2583R-MYQS

General Description

The MIC2582 and MIC2583 are single-channel positive voltage hot swap controllers designed to allow the safe insertion of boards into live system backplanes. The MIC2582 and MIC2583 are available in 8-pin SOIC and 16-pin QSOP packages, respectively. Using a few external components and by controlling the gate drive of an external N-Channel MOSFET device, the MIC2582/83 provide inrush current limiting and output voltage slew rate control in harsh, critical power supply environments. Additionally, a circuit breaker function will latch the output MOSFET off if the current-limit threshold is exceeded for a determined period. The MIC2583R option includes an auto-restart function upon detecting an over current condition.

Features

• MIC2582: Pin-for-pin functional equivalent to the LTC1422
• 2.3V to 13.2V supply voltage operation
• Surge voltage protection up to 20V
• Current regulation limits inrush current regardless of load capacitance
• Programmable inrush current limiting
• Electronic circuit breaker
• Optional dual-level overcurrent threshold detects excessive load faults
• Fast response to short-circuit conditions (<1µs)
• Programmable output under-voltage detection
• Undervoltage Lockout (UVLO) protection
• Auto-restart function (MIC2583R)
• Power-on-Reset (POR) status output
• Power good (PG) status output (MIC2583 and MIC2583R)
• /FAULT status output (MIC2583 and MIC2583R)

Applications

• RAID systems
• Base stations
• PC board hot swap insertion and removal
• +12V backplanes
• Network switches