Product category:
Power Supply ICs and Controllers
News Release from: Micrel | Subject: MIC2592A
Edited by the Electronicstalk Editorial
Team on 25 February 2004
Hot-swap power controller meets PCI
Express specs
The MIC2592A is billed as the first hot-swap power controller IC to support the current PCI Express power control requirements.
The MIC2592A is billed as the first hot-swap power controller IC to support the current PCI Express power control requirements Produced in a board space-saving 48-pin TQFP package, the MIC2592A is a three-rail/dual-slot power controller that supports all system voltages required by PCI Express
This article was originally published on Electronicstalk on 5 Dec 2000 at 8.00am (UK)
Related stories
World's simplest buck regulator boosted to 2A
Micrel has boosted the output capability of the industry's simplest surface-mount DC/DC switching convertor to 2A while retaining the device's original SO-8 packaging.
Dual and triple 135MHz low-power op amps
Consuming just 2.4mA per op amp, the MIC915 dual and MIC916 triple op amps extend Micrel's premier family of high-speed, low-power op amps for power-sensitive high-speed applications.
An SMBus interface is incorporated to allow for sophisticated power management.
Importantly, the new device integrates all the necessary circuitry for controlling external mosfets for the high-current +12 and +3.3V rails.
For the +3.3V auxiliary rails, the MIC2592A also integrates all control circuitry, current sense, and power mosfets.
For all three rails, the MIC2592A offers adjustable overcurrent timeout, electronic circuit-breaker fault protection, input undervoltage lockout, output voltage monitoring, and output voltage slew rate control.
The MIC2592A regulates the output current under fault conditions to ensure that inrush currents never exceed a user-programmed threshold.
This feature improves the performance of a system with highly capacitive loads associated with many PCI Express adapter cards.
In addition, the MIC2592A's DC performance has been enhanced with tighter primary and secondary circuit breaker threshold voltages and a high-accuracy overcurrent timer circuit.
Smaller power mosfets and a more compact PCB layout for the application combine to lower overall system cost.
For enhanced system performance monitoring, the specific cause of a fault in any of a slot's three supplies is recorded in internal registers and is accessible via the SMBus interface.
As system reliability is a key attribute in network servers for example, the MIC2592A has been designed to address next-generation PCI Express power control applications with the additional flexibility and better parametric performance demanded by network system engineers.
The MIC2592A is available now in a 48-pin TQFP package for $6.95 each when purchased in 25,000-piece OEM quantities.
• Micrel: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
