Conduction-Cooled 1000W Power Supplies Feature I²C Bus Communication

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A new series of baseplate/conduction-cooled power supplies is capable of providing up to 1000 watts without fans or forced-air cooling, thereby providing audible-noise-free operation. With a baseplate and ambient operating temperature range of from -40° up to +85°C, the CPFE1000F series of AC-DC power supplies from TDK Lambda will be of special interest to designers who need high power but cannot use fans, or where the power supply is mounted in an enclosure.

These single output power supplies operate with a wide universal input range of from 90 to 265 VAC with PFC and are available with DC outputs of 12V, 28V (adjustable to 24V) or 48 VDC. Due to its wide output adjustment range of +/- 20%, the output voltage can be set to match a variety of customer-specific applications. The outputs of these units can be connect-ed in series or parallel for higher power applications. The power supply’s baseplate is de-signed to easily attach to metal enclosures or other heat-sinking surfaces, thus eliminating the need for fans or forced-air-cooling. To guard against moisture, dust and other containments, the internal PCB assembly has a protective coating.

A distinguishing feature of the CPFE1000F series is its internal I2C bus interface, which can send operational parameters of the power supply to remote locations. These parameters include: output voltage, output current, baseplate temperature, serial number, model number and date-code. In addition, the I2C interface provides a means to turn the power supply on or off from a remote site and receive DC Good and over-temperature signals. In addition to the I2C bus, traditional signals/controls are provided including an Output Good signal, Remote On/Off control, Remote-Sense lines, Active Current-Share and an Auxiliary-Output of 12V/20mA. Pricing is $825 in 50-piece quantities.

TDK-Lambda Americas
San Diego, CA.
(619) 628-2859.