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
– Load variation 10–100%
0.5 %
1.0 % max.
Min. load
no minimum load required
50 mVpk-pk max.
Ripple and noise (20 MHz Bandwidth)
Temperature coefficient
Short circuit protection
0.02 %/K
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
Isolation resistance
– Input/Output
– Input/Output
20 pF typ.
>10 Gohm (at 500 VDC)
2 µA
Pri-Sec leakage current (at 240VAC, 60Hz)
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
– CB test certificate according IEC 60601-1
– UL online certification to ES 60601-1
www.tracopower.com/products/thi3-cb60950.pdf
www.tracopower.com/products/thi3-cb60601.pdf
www.ul.com/database File: e188913 - QQHM2
General Specifications
Temperature ranges
– Operating
– Case temperature
– Storage
–40°C to +75°C
+95°C max.
–50°C to +125°C
Derating
2.78 %/K above 60°C
95 % rel. H max.
4000 m
Humidity (non condensing)
Altitude during operation
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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