Product category:
Power Supply ICs and Controllers
News Release from: Micrel | Subject: MIC2341 and MIC2342
Edited by the Electronicstalk Editorial
Team on 18 January 2008
Hot-swap controllers meet PCIe specs
Ideal for high-performance enterprise computing network system processor boards, DDR memory boards, embedded systems and gigabit Ethernet addon cards.
New from Micrel, the MIC2341 and MIC2342 dual-channel hot-plug power controllers support the power requirements for PCI Express Specification v2.0 The MIC2341 and MIC2342 augment Micrel's growing PCIe product family and are ideal for high-performance enterprise computing network system processor boards, DDR memory boards, embedded systems and gigabit Ethernet addon cards for the server networks and RAID/storage network markets
This article was originally published on Electronicstalk on 5 Dec 2000 at 8.00am (UK)
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"The MIC2341 and MIC2342 both offer an integrated solution that minimises solution component count and lower overall BOM cost", says Andy Cowell, Micrel's Marketing Vice President for analogue Products.
"In addition, both ICs feature very rapid response times to potentially catastrophic overcurrent load events, key in mission-critical applications for the server and RAID/storage network markets".
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The MIC2341 and MIC2342 provide support for 12, 3.3 and 3.3V auxiliary supplies and are equipped with many features - including programmable gate voltage slew-rate control, voltage supervision, programmable current limit, and circuit breaker functions.
The devices support two independent PCI Express slots, offer integrated power MOSFETs for 3.3V auxiliary rails with low backfeed on the main +12 and +3.3V rails - an important consideration during standby operation for wake-on-LAN applications.
The ICs also offer dual-level dual-speed overcurrent fault protection and a user-programmable primary overcurrent filter to eliminate nuisance tripping.
Separate main and auxiliary overcurrent fault output signals and load card detection (present) switch inputs are also offered.
Power will be delivered only when the module/card is fully inserted and power fault isolation allows an unaffected power rail(s) to remain active and accelerates debugging effort(s) when locating a faulty area(s) in the circuit.
In addition, the ICs provide system management flexibility in offering either a latched or auto-retry option.
The main output rails of the MIC2342 shut down during an overcurrent fault on auxiliary for a given slot, whereas main outputs of the MIC2341 are independent of an overcurrent fault occurring on the auxiliary.
Both ICs are available in RoHS compliant 48-pin TQFP Pb-free packages.
All options feature a 0 to +70C ambient temperature range.
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