Conduction Cooled 1000W Digital AC-DCs are 60% Smaller

TDK Corporation announces the introduction of TDK-Lambda's CPFE1000FI of baseplate/conduction-cooled 1000W power supplies. When compared to TDK-Lambda's MIL-STD rated CPFE1000F, the overall product size has been reduced by 60%. Capable of operating without forced-air cooling, the supplies are suited to outdoor, sealed enclosure, communications and harsh environment industrial applications, including RF amplifier and ground-based satellite equipment.

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 48Vdc. 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 connected in series or parallel for higher power applications. The units will operate at full load with baseplate temperatures of -40 to +85 degrees C.

Case style options for the CPFE1000FI include a U channel, with or without a cover, or as a PCB assembly measuring just 254mm x 107mm x 40mm. A coating option is also available for all models, providing protection against humidity and the ingress of containments. The PCB style is suitable for users requiring a fully certified solution, but do not have the expertise or time to develop a custom power module based solution.

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.

The CPFE1000FI power supplies are certified to IEC/UL/CSA/EN 60950-1 and are CE marked for the Low Voltage and RoHS2 Directives. The units also comply with EN 55011-B, EN 55022-B and FCC Class B for conducted emissions (Class A radiated), and meet the IEC 61000-4 immunity and IEC 61000-3-2 harmonic current standards.