DC/DC Converter
TEF Series 3 Watt
Input Specifications
Input current no load 5 Vin models:60mA typ.
12 Vin models:15mA typ.
20 Vin models: 25mA typ.
24 Vin models: 7mA typ.
48 Vin models: 6mA typ.
Input current full load 5 Vin models:720mA typ.
12 Vin models:310mA typ.
20 Vin models: 180mA typ.
24 Vin models: 140mA typ.
48 Vin models: 70mA typ.
Surge voltage (1 sec. max.) 5 Vin models:7.5V max.
12 Vin models:15V max.
24 Vin models:30V max.
Input filter Pi-Filter
Output Specifications
Voltage set accuracy± 3 %
Regulation– Input variation Vin min. to Vin max.± 0.5 % max.
– Load variation 10 – 90 %;single output:± 1.0 % max.
dual output:± 2.0 % max.
Ripple and noise (20 MHz Bandwidth)80 mVpk-pk max.
T emperature coefficient± 0.02 % / °C
Short circuit protection continuous
Capacitive load– Single output models2200 μF max.
– Dual output models2200 μF max.
General Specifications
T emperature ranges– Operating–25 °C ... +75 °C
– Case+ 95 °C
– Storage–40 °C ... +115 °C
Humidity (non condensing)95 % rel H max.
Reliability, calculated MTBF (MIL-HDBK-217E)>1’000’000 h @ 25 °C
Isolation voltage– Input/Output1’000 VDC
– Input/Case1’000 VDC
– Output/Case500 VDC
Isolation capacity– Input/Output500 pF typ.
Isolation resistance– Input/Output>1‘000 M Ohm
Switching frequency25 – 85 KHz (depending on load)ations All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
Rev. 12/00
Jenatschstrasse 1 ? CH-8002 Zurich ? Switzerland