Description

This is the MIC2589R-1BM electronic component model and it falls under the category of hot swap controllers. It is a single-channel, negative voltage controller that is designed to ensure the safe insertion and removal of circuit boards into "live" system backplanes with the use of very few external components. It is available in 14-pin SOIC packaging and works with an external N-Channel MOSFET for which gate drive is controlled to provide inrush current limiting and output voltage slew-rate control. The overcurrent threshold and duration are programmable, and very fast fault response is provided to ensure that system power supplies maintain regulation even during output short circuits.

Specifications and features

• Safely inserts and removes from live -48V backplanes
• Works within the voltage range of -19V to -80V
• Fast-responding circuit breaker (<1µs) to short circuit conditions
• User-programmable overcurrent detector response time
• Electronic circuit breaker function: Output latch OFF (MIC2589/95) or Output auto-retry (MIC2589R/95R)
• Active current regulation precisely controls inrush currents
• Regulated maximum output currents into faults
• Programmable undervoltage and overvoltage lockouts (MIC2589/89R)
• Programmable UVLO hysteresis (MIC2595/95R)
• Staggered 'Power-Good' outputs provide load sequencing
• Fault reporting: Active-HIGH (MIC25XX-1) and Active-LOW (MIC25XX-2) Power-Good signal output

Application Scenarios

The MIC2589R-1BM can be used in various applications, including central office switching, -48V power distribution, and distributed power systems.

Comparison

• Safely facilitates the insertion and removal of circuit boards into "live" system backplanes with the use of few external components.
• Regulated maximum output currents into faults securely control inrush currents.
• Fast-responding circuit breaker ensures that system power supplies maintain regulation even during output short circuits.
• Staggered 'Power-Good' outputs provide load sequencing.

There are no known disadvantages to this product.