http://www.tracopower.com

DC/DC Converters

THI 3 Series

3 Watt

Input Specifications

Input current no load / full load

5 Vin models: 130 mA / 1000 mA typ.

12 Vin models: 60 mA / 420 mA typ.

24 Vin models: 40 mA / 210 mA typ.

Surge voltage (1 sec. max.)

5 Vin models: 7.5 V max.

12 Vin models: 15 V max.

24 Vin models: 30 V max.

Recommanded input fuse (slow blow)

5 Vin models: 2 A

12 Vin models: 1 A

24 Vin models: 0.5 A

Input filter

Pi-Filter

Conducted noise

EN 55022, class A and FCC level A

Output Specifications

Voltage set accuracy

±4 %

Voltage balance (dual output models)

4 % max.

Regulation

– Input variation

0.5 %

– Load variation 10–100%

1.0 % max.

Min. load

no minimum load required

Ripple and noise (20 MHz Bandwidth)

50 mVpk-pk max.

Temperature coefficient

±0.02 %/K

Short circuit protection

continuous (automatic recovery)

Capacitive load

single output models: 470 µF max.

dual output models: 220 µF max. (each output)

Isolation / Safety Standards

I/O isolation voltage

– to meet ES/IEC/EN 60601-1

4000 VACrms, rated for 300 Vrms working

(50Hz, 60sec.)

voltage, 2 x MOOP

Isolation capacitance

– Input/Output

20 pF typ.

Isolation resistance

– Input/Output

>10 Gohm (at 500 VDC)

Pri-Sec leakage current (at 240VAC, 60Hz)

2 µA

Safety standards

IEC/EN 60950-1, IEC/EN 60601-1 3rd Edition,

ANSI/AAMI ES60601-1 and CAN/CSA-C22.2

No. 60601-1, Medical Electrical Equipment -

Part 1: General Requirements for Basic Safety

and Essential Performance

Safety approvals

– CB test certificate according IEC 60950-1

www.tracopower.com/products/thi3-cb60950.pdf

– CB test certificate according IEC 60601-1

www.tracopower.com/products/thi3-cb60601.pdf

– UL online certification to ES 60601-1

www.ul.com/database File: e188913 - QQHM2

General Specifications

Temperature ranges

– Operating

–40°C to +75°C

– Case temperature

+95°C max.

– Storage

–50°C to +125°C

Derating

2.78 %/K above 60°C

Humidity (non condensing)

95 % rel. H max.

Altitude during operation

4000 m

Reliability, calculated MTBF (MIL-HDBK-217F, at +25°C, ground benign)

>1 Mio h

Switching frequency

25 – 60 kHz (PFM)

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

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