Press Release

4/19/2000

SynQor Introduces 60 Amp Tera Half-brick Converters

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Hudson, Mass - SynQor announced today its new PowerQorâ„¢ Tera series of industry standard "half-brick" sized isolated DC-DC converters. The Tera series converters use synchronous rectification and a patented topology to achieve extremely high efficiency and high current (86% for 2.5Vout at 60 amps). The Tera units provide full-brick output current in a half-brick package while dissipating only half the heat. SynQor offers both a standard and full-featured version of the PowerQor Tera converters. The full-feature model additionally provides active current sharing for parallel operation, temperature monitoring signals, external clock and start-up synchronization capability, and a supply voltage for driving an ORing Mosfet.

The PowerQor Tera half-brick line includes output voltages of 15V, 12V, 5V, 3.3V, 2.5V, 2.0V, 1.8V and 1.5V. All units draw power from a 48V nominal input (range: 35V to 75V) and deliver 60 amps at 2.5V and below, or 165 Watts of output at 3.3V and higher. Typical full-load efficiency numbers are 91% at 15V/11A, 91% at 12V/13.75A, 89% at 5V/33A, 89% at 3.3V/50A, 86% at 2.5V/60A, 84% at 2.0V/60A, 84% at 1.8V/60A and 83% at 1.5V/60A.

The Tera series of DC-DC converters is targeted towards the converging telecom and datacom markets that are supplying the hardware needed to support the explosive growth of the Internet. High-end optical networking MUXs, backbone switches and Terabit routers are just some products that require higher currents at increasingly lower voltages to power today's complex electronic circuitry. SynQor is meeting these challenges by increasing efficiency and power density while reducing converter size and eliminating the need for a heatsink. The PowerQor Tera converters are ideal for these types of OEM designs using distributed power architectures.

SynQor continues to stretch the available output current of the standard half-brick converter. SynQor's original PowerQor units deliver 30 amps without a baseplate or heatsink. Design improvements allowed SynQor to increase that output to 40 amps. The Tera units allow a maximum output current of 60 amps at the lower voltages while retaining the industry standard half-brick footprint and pin-out. PowerQor Tera converters can be used to replace existing full bricks or to provide more available power under severe thermal environments.

The entire family of Tera converters offer advanced control, safety and protection features including; on/off control, remote sense, no load operation, output voltage trim, input under-voltage and over-voltage lockout, output current limit, output over-voltage protection limit, temperature limit, as well as safety certifications from UL 1950, CSA 22.2-234, IEC 950, 72/23/EEC, 93/68/EEC, and ETSI standard ETS300 132-2.

The full-feature Tera converters include extra pins to provide additional controls for better functionality and ease of use. These units include active current sharing for parallel operation to achieve higher power levels and N+1 redundancy for hot swap applications. The full-feature models also include a temperature monitoring pin to gauge thermal status in real time as well as external clock and start-up synchronization capability for better EMI characteristics and a more consistent start-up sequence. Additionally, a secondary side FET drive circuit allows designers to implement simple and efficient output ORing protection by using FETs instead of inefficient Schottky diodes.

The PowerQor Tera series of half-brick converters will begin shipping in April 2000 and are available direct from SynQor and through their network of distributors. The standard Tera half-brick modules are priced at $138.70 in 1,000 unit quantities and the full-featured units are priced at $149.79 in 1,000 unit quantities.

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