SMALLEST, 12V, INFINIBAND-COMPLIANT, HOT-SWAP CONTROLLER FOR BLADE SERVERS
SUNNYVALE, CA-May 14, 2003-Maxim Integrated Products
(NASDAQ: MXIM) introduces the MAX8533, the smallest 12V, infiniband-compliant, hot-swap controller and power sequencer available. It has bilevel current protection and overvoltage protection. The MAX8533 resides on a line card and manages the power transfer when the card is inserted or removed from the live-power backplane. The MAX8533's protection features permit reliable, real-time monitoring of blade servers, RAID cards, and network switch or router line cards.
The MAX8533's adjustable soft-start ramp limits inrush current, which protects the backplane voltage from glitches. It also provides bilevel current protection for overcurrent (OC) and severe overcurrent (SOC) conditions. In the presence of overcurrent conditions, it provides a regulated current output for a programmed time before latching off. Additionally, it responds to severe overcurrent or dead short faults within 100ns.
The MAX8533 also features unique, adjustable overvoltage protection to protect itself and the downstream DC-DC controllers. An absolute maximum rating of 16V allows it to withstand inductive-kickback voltages during board removal. Two enable inputs, EN (logic enable) and LPEN (local-power enable) and a POK (power good) output, provide flexible sequencing.
The MAX8533EUB is available in a 10-pin µMAX package-50% smaller than competing packages-and is specified for the extended-industrial temperature range (-40°C to +85°C). Prices start at $1.90 (1000-up, FOB USA). An evaluation kit is available to speed designs.
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