Product category:
Power Supply ICs and Controllers
News Release from: Micrel | Subject: MIC2580 PCI power controller
Edited by the Electronicstalk Editorial
Team on 18 January 2001
Controller simplifies CompactPCI hot
swaps
A highly integrated power controller that simplifies CompactPCI and PCI hot-plug hot swap applications is now available from Micrel Semiconductor.
A highly integrated power controller that simplifies CompactPCI and PCI hot-plug hot swap applications is now available from Micrel Semiconductor Manufactured in 24-pin TSSOP and SSOP packages, the MIC2580 supports 3.3, 5 and +/-12V card power distribution
This article was originally published on Electronicstalk on 5 Dec 2000 at 8.00am (UK)
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The device provides complete overcurrent and undervoltage fault protection plus slew rate limiting required in board hot swap applications.
The MIC2580 integrates the 1.0V precharge supply required in CompactPCI applications, eliminating the need for an additional regulator and several discrete components.
It also has a 'Power-Good' output separate from the overcurrent fault signal, which is useful for enabling linear or DC/DC convertors.
A power-on reset output eliminates the need for additional reset supervisor ICs.
Also integrated into the MIC2580 are +12 and -12V mosfets to support PCI applications which require these supplies.
"Micrel developed the MIC2580 to address problems designers are having with CompactPCI power distribution", says Larry Mazer, product marketing manager for Micrel.
"Board space is especially at a premium in CompactPCI systems.
The high integration of the MIC2580 not only saves space, but greatly simplifies meeting CompactPCI hot swap power requirements", adds Mazer.
"Many unique features were incorporated into the device.
For example, to allow sequencing of the 3.3 and 5V supplies for processor core and I/O supply applications, we separated the external mosfet 3.3 and 5V gate drive", says Mazer.
The MIC2580BM and MIC2580BTS are available now in 24 -pin SSOP and TSSOP, respectively for $3.60 when purchased in 1,000-piece quantities.
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