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TMR3
(Rev.:2007)

DC/DC Converters

TRACO Electronic AG 

DC/DC Converters

TMR 3 Series

3 Watt

Input Specifications

Input current at full load (nominal input voltage)

4.5–9 Vin models:

9-–18 Vin models:

18–36 Vin models:

36–75 Vin models:

820 mA max.

330 mA max.

170 mA max.

85 mA max.

Surge voltage (100 msec. max.)

4.5–9 Vin models:

9-–18 Vin models:

18–36 Vin models:

36–75 Vin models:

15 V max.

36 V max.

50 V max.

100 V max.

Input voltage variation (dv/dt) 5 V/ms, max.

(complies with ETS300 132 part 4.4)

Input filter capacitor type (see application note for

compliance to EN 55022 class A/B)

Start up time < 1ms at nominal input and resistive load

Output Specifications

Voltage set accuracy ± 1 % max

Regulation

– Input variation Vin min. to Vin max. 0.2 % max.

– Load variation 5 – 100%

single output models: 0.5 % max.

dual output models: 1.0 % max. balanced load

– Load variation 0 – 100%

single output models: 1.0 % max.

dual output models: 1.0 % max. balanced load

– Load cross regulation 25/100% 5.0 % max. (dual output models)

Minimum load 0% of rated max. load

Temperature coefficient 0.1 %/K

Ripple and noise (20 MHz Bandwidth) 75 mVpk-pk max.

Start up time

(constant resistive load)

– Power On 30 ms typ.

– Remote On 30 ms typ.

Transient response setting time (25% load step change) 500 µs typ.

Temperature coefficient ± 0.1 %/°C

Short circuit protection continuous, automatic recovery

Capacitive load

3.3 VDC / 5 VDC output models:

12 VDC / 15 VDC output models:

±5 VDC / ±15 VDC output models:

±15 VDC output models:

1‘760 µF max. / 1’000 µF max.

170 µF max. / 110 µF max.

± 470 µF max. / ± 100 µF max.

± 47 µF max.

General Specifications

Temperature ranges

– Operating – 40 °C ... + 70 °C (no derating)

– Case temperature +100 °C max.

– Storage – 55 °C ... + 125 °C

Load derating 3.5 %/K above 70°C

Humidity (non condensing) 95 % rel. H max.

Reliability, calculated MTBF (MIL-HDBK-217F ground benign) >2.4 Mio h @ 25°C

Isolation voltage (60 sec) – Input/Output 1’500 VDC

Isolation capacity

– Input/Output 1000 pF max.

Isolation resistance

– Input/Output (500 VDC) >10 GOhm

Switching frequency 100 kHz (PWM)

Remote On/Off

– On: open or high impedance

– Off: 2...4 mA current applied via 1KOhm resistor

– Off stand by input current

2.5 mA max.

All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.

http://www.tracopower.com

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