UM2900 Datasheet | UMEC INTERNATIONAL

UMEC International Corporation UM2900 SERIES - 50 Watt DC/DC Converters - 2:1 Input Range - 40-50 W Isolated Output - High-Density - Remote on/off Control - Design meet EN60950 - Ro HS pliant SPECIFICATIONS All specifications are typical at nominal line, full load and 25°C unless otherwise noted. INPUT SPECIFICATIONS Input Voltage Range, 24V ……..…………………….. 18-36V 48V …….……………………… 36-72V Input Filter …….…………………………………… Pi Network OUTPUT SPECIFICATIONS Voltage Accuracy1, Single Output ………………... ±2%max. Triple Output +5V ……..…….. ±2%max. Transient Response2 Auxiliaries ….… ±5% max. Single, 25% step Load Change ……….….… <500u sec. External Trim Adj. Range ……….…………………… +10% Short Circuit Protection …….……………………. Continuous Line Regulation3 Single Output…………..…… ±0.5% max. Triple Output +5V …………… ±0.5% max. Auxiliaries ….… ±2% max. Load Regulation4 Single Output …..……………. ±1% max. Triple Output +5V …………..… ±2% max. Ripple and Noise, 20MHz BW5 …………… 100m V p-p max. Auxiliaries ………….….. 200m V p-p max. GENERAL SPECIFICATIONS Efficiency ….…………….…………………………. See Table Isolation Voltage, Input/Output .………………..…. 1500VDC Input/Case ……………….…….. 1500VDC Switch Frequency ……………..…………………….. 250KHz Isolation Resistance ………….……….……. 108 Ohms min. Case Grounding ………………... Capacity Coupled to Input Operating Temperature Range …………… -25°C to +100°C Storage Temperature Range …....……….. -40°C to +105°C EMI/RFI ……………….……. Five-Sided Continuous Shield Dimensions ….…………………….……… 2.2- 2.2- 0.5 inches (55.88- 55.88- 12.7 mm) Case Material ……..………………… Black Coated metal Weight …………………………………………………..….. 80g NOTE 1. Defined at the static output regulation at 25°C,including initial setting accuracy, Line voltage within stated limits and load current within stated limits. 2. di/dt=0.1A/1u S ,Tc=25°C; load change=0.5 Io max. to 0.75 Io max. and 0.75 Io max. to 0.5 Io max. 3. Measured from high line to low line. 4. Single: from full load to 1/4 load, Triple: from full load to 1/2 load with...