Datasheet

http://www.tracopower.com Page 2 of 3
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
DC/DC Converters
TMR 2WI Series 2 Watt
Input Specifications
Input current at no load (nominal input) 24 Vin models: 20 mA typ.
48 Vin models: 15 mA typ.
Input current at full load (nominal input) 24 Vin models: 110 mA typ.
48 Vin models: 55 mA typ.
Surge voltage (100 msec. max.) 24 Vin models: 50 V max.
48 Vin models: 100 V max.
Reverse voltage protection 0.5 A max.
Input Filter capacitor type
Start up time < 1ms
(at nominal input and resistive load)
Output Specifications
Voltage set accuracy ± 2 %
Regulation
– Input variation Vin min. to Vin max. 0.5 % max.
– Load variation 10 – 100 % single output models: 0.75 % max.
dual output models: 1.0% max. (balanced load)
Temperature coefficient ± 0.1 %/°C
Ripple and noise (20 MHz Bandwidth) 50 mVpk-pk max
Transient Response (25% load step change) 300 µs typ.
Short circuit protection constant current
(automatic recovery)
Capacitive load
3.3 VDC / 5 VDC models: 2’200 µF max. / 1’000 µF max.
12 VDC / 15VDC models: 170 µF max. / 110 µF max.
±5 VDC / ±12 VDC models: 470 µF max. / 100 µF max.
(each output)
±15 VDC models: 47 µF max. (each output)
General Specifications
Temperature ranges – Operating – 40 °C ... + 75 °C (no derating)
– Case temperature +100 °C max.
– Storage – 55 °C ... + 105 °C
Humidity (non condensing) 95 % rel. H max.
Reliability, calculated MTBF (MIL-HDBK-217F ground benign) > 1 Mio h @ 25°C
Isolation voltage (60 sec) – Input/Output 1’500 VDC
Isolation capacitance –
Input/Output 500 pF max.
Isolation resistance –
Input/Output (500 VDC) > 1‘000 M Ohm
Switching frequency 100 to 650 kHz (PFM)
Remote On/Off control –
On: <0.6 VDC or open
–
Off: 2.7...15 VDC
–
Off stand by input current 0.2 mA max.
Case material non-conductive plastic
Potting material epoxy, UL94V-0 - rated
Weight 6.5g (0.23oz)