June 10, 2020
TDK Corporation (TSE 6762) announces the introduction of the i7C series of 8A 300W rated non-isolated DC-DC converters, packaged with the industry standard 1/16th pinout. The output voltage of these step-up and step-down converters can be adjusted from 9.6 to 48V and accept a wide range input voltage of 9 to 53V. The converters seamlessly transition from buck to boost mode operation without disruption in performance.
The i7C 8A series can be used to derive additional high-power outputs from a 12V, 24V, 36V or 48V DC power supply, at a much lower cost than isolated DC-DC converters. With efficiencies of up to 97%, these compact products are ideally suited for use in medical, communications, industrial, test and measurement, broadcast and portable battery powered equipment.
During light load conditions, the i7C’s control circuitry significantly reduces power consumption. At zero load, the input current draw is typically just 5mA, which can be reduced to around 0.25mA when the remote on-off is used to put the converter into standby. This extends the time battery powered equipment can remain functional, during periods of non-peak operation.
Three mechanical configurations are available, measuring just 36.8mm wide and 34mm in length. The 12.2mm high open frame model is most suitable for applications requiring a very low profile. A baseplate version for conduction cooling to a cold plate is 13mm high, or models with an integral heatsink for convection or forced air cooling are 24.9mm high.
The thermal design of the i7C series allows for minimal output de-rating, even with low airflow conditions. The product’s design reduces the need for large external components, saving cost and board space.
Standard features for the i7C series include a trim pin for output voltage adjustment, + remote sense, remote on-off (positive or negative logic), input under-voltage, over-current and over-temperature protection. As an option, the full-featured models are equipped with a power good signal, output current monitoring and to minimise system noise, the switching frequency can be synchronised to another model or to an external clock.
All models have safety certification to the IEC/EN 62368-1 and 60950-1 standards, with CE marking to the Low Voltage and RoHS Directives.
TDK recently annoucned the 500W rated i7A non-isolated DC-DC converters. Capable of operating from an input voltage of 18V to 60V, the step-down converters deliver an output voltage that can be adjusted from 3.3 to 24V with an output current of up to 33A. The series...
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