Product category:
Power Supply ICs and Controllers
News Release from: Micrel | Subject: MIC2590
Edited by the Electronicstalk Editorial
Team on 24 April 2002
Hot-swap controller monitors with
onboard ADC
A new hot-swap power controller IC supporting the latest PCI hot-plug standards is now available from Micrel Semiconductor.
A new hot-swap power controller IC supporting the latest PCI hot-plug standards is now available from Micrel Semiconductor Manufactured in a 48-pin TQFP package, the MIC2590 is a dual-slot power controller that supports all system voltages required by PCI, including the 3.3V auxiliary voltage specified by PCI Standard Version 2.2
This article was originally published on Electronicstalk on 5 Dec 2000 at 8.00am (UK)
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The device supports +12, -12, 3.3 and 5.0V primary supplies, and 3.3V auxiliary supplies with overcurrent protection.
The MIC2590 offers adjustable overcurrent timeout, circuit-breaker fault protection, undervoltage lockout, output voltage monitoring and output voltage slew rate control.
The MIC2590 also regulates the output current to ensure that inrush current never exceeds the programmed threshold.
This feature improves the performance of a system with highly capacitive loads associated with many PCI adapter cards.
System reliability and performance monitoring is increased by an integrated 8bit ADC that provides the system designer with the means to monitor the voltage and current of any supply in any PCI slot.
In addition, the specific cause of a fault in any supply is recorded in internal registers accessible via the SMbus interface.
This feature provides the system designer with comprehensive diagnostics and power management capabilities supported by the Intelligent Peripheral Management Interface (IPMI) standard.
"System reliability is key in network servers, so the MIC2590 was designed to address PCI power distribution applications with the additional flexibility and enhanced performance demanded by network system designers", said Larry Mazer, business unit manager for hot-swap products at Micrel.
The MIC2590 is available now in a 48-pin TQFP package for $8.20 when purchased in 1000-piece quantities.
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