Designed for demanding worldwide applications, the TUNS1200 has an input voltage range of 85VAC to 305VAC and is certified to meet industrial and medical standards. Packaged in a sealed plastic case with aluminium baseplate the TUNS1200 has a height of just 12.7 mm (0.5”) and weighs less than 280 grams.
Compared to existing 1kW onboard AC/DC modules, the TUNS1200’s footprint is 36% smaller while delivering 21% more power. The unit can be operated from -40C to +100C baseplate temperatures. TUNS1200 modules can be paralleled up to nine units (up to 9,750W), their output voltage can be adjusted down to zero volts, and is easily set to constant voltage or constant current operating modes.
Packaged in sealed housing with an aluminum baseplate, the TUNS1200 is the latest member of COSEL’s TUNS series, which includes a 50W ¼ brick, 100W ½ brick and 300, 500 and 700W full brick units. Designed with the latest technology, the TUNS1200 delivers its full power up to +85C baseplate temperature, and is able to operate safely at up to +100C with a derating.
The TUNS1200 series embraces three output voltages versions: TUNS1200F12 (12V / 84A), TUNS1200F28 (28V / 43A) and the TUNS1200F48 (48V / 25A). Output voltage can be adjusted +/- 20% (-20% /+10% for the 48V) using the trimming pin, though the TUNS1200 series include an active Voltage Trimming input (VTRM) making it possible to adjust the output voltage down to zero by applying an external voltage source. Using the latest technology, the TUNS1200 has a power efficiency of 92% typical and a power factor of 0.98 at 100V.
For applications such as battery chargers requiring constant current (CC), the TUNS1200 includes a dedicated pin (ITRM) and by applying a DC voltage or connecting a resistor to the –S terminal it is possible to set the constant current from just above zero to the desired current.
The units have a 3,000VAC input to output isolation voltage (2MOOP), 2,000VAC input to ground (1MOOP) and 500VAC output to ground. Overcurrent, overvoltage and thermal protection are included as standard.
Suitable for industrial and medical applications, the TUNS1200 complies with the safety agency approvals: UL62368-1, EN62368-1, C-UL (equivalent to CAN/CSA-C22.2 No.62368-1 ), ANSI/AAMI ES60601-1, EN60601-1 3rd, C-UL (equivalent to CAN/CSA-C22.2 No.60601-1), and complies with IEC60601-1-2 4th. The TUNS1200 includes an active filter, complying with the harmonic attenuation IEC61000-3-2 (Class A).
The power supply complies with the RoHS directive and is CE marked in accordance with the Low Voltage Directive.