4/7/2003 - Summit Microelectronics has announced availability of the SMT2002 Dual-Channel TRAKKERTM. This is a two-channel device that limits the voltage differential between power supply channels to <100mV while controlling their ramp rate during power-up and -down to an internally-set rate of 500V/s. Tracking is the most dependable turn-on control for preventing latch-up and ensuring long-term reliability in supplying power to multi-voltage high performance devices where cCore and I/O voltage levels need to meet precise turn-on requirements.
The part can be used alone or in conjunction with the Summit SMS24, SMS44 or SMS64 sequencing controllers to implement additional monitoring functions across more channels. A status output on the device indicates when the track-up and track-down are complete.
The device is a drop- in solution that controls external MOSFETs' gates to perform the operation of minimizing the voltage differential of the supplies as they are turned on. Once the input-to-output voltage difference across the MOSFETs is reduced to 200mV, tracking is considered complete and the gate voltages are then fully enhanced for ongoing operation. The same sequence occurs during power down.
Designed for use in point-of-load power applications or in multi-supply rail systems, the device plays an important role in mezzanine line cards and multi-voltage network processors, digital signal processors, and ASICS. The part is also essential in cost-sensitive applications demanding voltage tracking, such as cable modem consumer premise equipment (CPE), xDSL CPE, and set-top boxes.
Packaging, Price and Availability
The SMT2002 is available now in a 16-lead SSOP package for $2.85 each in quantities of 10,000 parts.
Summit Microelectronics supplies semiconductors that manage power functions in communications, networking, storage and server systems. With Summit's programmable analog technology, customers can achieve carrier-class availability, the highest standard of reliability available today for telecommunications, data communications and Internet applications.
Founded in 1997, Summit is headquartered in San Jose, California. The Company is ISO 9001 certified. More information is available on Summit's website at www.summitmicro.com.
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