Datasheet
http://www.tracopower.com
Input Specifications
Input current at no load 24 Vin models: 35 mA typ.
48 Vin models: 25 mA typ.
Input current at full load 24 Vin models: 1000 mA typ.
48 Vin models: 500 mA typ.
Surge voltage 24 Vin models: 50 V max.
(100 msec. max.) 48 Vin models: 100 V max.
Conducted noise (input) EN 55022 level A, FCC part 15, level A
ESD (input) EN 61000-4-2, perf. criteria B
Fast transient (input) EN 61000-4-4, perf. criteria B
Surge (input) EN 61000-4-5, perf. criteria B
Output Specifications
Voltage set accuracy ± 2 %
Output voltage adjustment ± 10 %
Regulation – Input variation Vin min. to Vin max. ± 0.2 % max.
– Load variation 25 – 100%:
single output models: ± 0.5 % max.
dual output models: ± 3 % max.
– Load cross variation 25 % / 100 % ± 5 % max.
Temperature coefficient ± 0.02 % /K
Ripple and noise (20 MHz Bandwidth) single output models: 75 mVpk-pk max.
dual output models: 100 mVpk-pk max.
Start up time (nominal Vin and constant resistive load) 20 ms typ.
Transient Response (25% load step change) 500 µs typ.
Short circuit protection indefinite (automatic recovery)
Over load protection 150% of Iout max typ. foldback
Over voltage protection 5 Vout models: 6.2 V
12 Vout models: 15 V
15 Vout models: 18 V
Minimum load (only for dual output models) 10% of rated max current
(operation at lower load
condition will not damage these converters, however,
they may not meet all listed specifications)
Capacitive load 5 Vout models / ± 5 Vout models: 6’800 µF max. / ± 3’400 µF max.
12 Vout models / ±12 Vout models: 2’200 µF max. / ± 680 µF max.
15 Vout models / ±15 Vout models: 755 µF max. / ± 450 µF max.
General Specifications
Temperature ranges – Operating – 40 °C ... + 85 °C
– Case temperature + 100 °C max.
– Storage – 55 °C ... + 105 °C
Thermal impedance – with heat-sink TEN-HS2 8.24 K /watt
– without heat-sink 10 K /watt
Derating see graphs on page 3 to 5
Humidity (non condensing) 95 % rel H max.
Reliability, calculated MTBF (MIL-HDBK-217 E) > 440’000 h @ + 25°C
Isolation (Input/Output) – Voltage 1‘500 VDC
– Capacity 300 pF max.
– Resistance > 1‘000 M Ohm
DC/DC Converters
TEN 20WI 20 Watt
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
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