DC/DC Converters
THL 20WI Series, 20 Watt
Features
◆
Smallest encapsulated 20W converter!
Ultra compact size: 1.0” x 1.0” x 0.4”
Scheme
IEC 60950-1
CB
226037
◆
Shielded metal case with isolated
baseplate
◆
◆
◆
◆
◆
Ultrawide 4:1 input voltage ranges
Very high efficiency up to 90%
Output voltage adjustable
Remote On/Off control
Operating temp. range –40°C to +75°C
and up to +85°C with heat-sink
◆
I/O isolation voltage 1500 VDC
◆
Lead free design, RoHS compliant
◆
3-year product warranty
The THL 20WI series is the latest generation of dc-dc converter modules with highest
power density. The product achieves 20 Watt output power while it comes in a metal
case with dimensions of only 1.0”x 1.0”x 0.4”.
All models have an ultra wide 4:1 input voltage range and precisely regulated out-
put voltages. Highest efficiency of up to 90% makes this product very reliable and
applicable in temperature ranges of up to +75°C or +85°C with optional mounted
heat sink. Typical applications are in mobile equipments, instrumentation, distribut-
ed power architectures in communication and industrial electronics and everywhere
where space on the PCB is critical.
Models
Order code
THL 20-2410WI
THL 20-2411WI
THL 20-2412WI
THL 20-2413WI
THL 20-2415WI
THL 20-2422WI
THL 20-2423WI
THL 20-4810WI
THL 20-4811WI
THL 20-4812WI
THL 20-4813WI
THL 20-4815WI
THL 20-4822WI
THL 20-4823WI
18 – 75 VDC
(48 VDC nominal)
9 – 36 VDC
(24 VDC nominal)
Input voltage range
Output voltage
3.3 VDC
5.0 VDC
12 VDC
15 VDC
24 VDC
±12 VDC
±15 VDC
3.3 VDC
5.0 VDC
12 VDC
15 VDC
24 VDC
±12 VDC
±15 VDC
Output current max.
4500 mA
4000 mA
1670 mA
1340 mA
835 mA
±835 mA
±670 mA
4500 mA
4000 mA
1670 mA
1340 mA
835 mA
±835 mA
±670 mA
Efficiency typ.
87 %
89 %
89 %
89 %
88 %
89 %
89 %
88 %
89 %
89 %
90 %
88 %
89 %
89 %
http://www.tracopower.com
Page 1 of 4
DC/DC Converters
THL 20WI Series
Input Specifications
Input current at no load
(at nominal input voltage)
24 V single
24 V dual
48 V single
48 V dual
output
output
output
output
models:
models:
models:
models:
models:
models:
models:
models:
80 mA typ.
40 mA typ.
40 mA typ.
25 mA typ.
700 mA typ.
940 mA typ..
350 mA typ.
470 mA typ.
20 Watt
Input current at full load
(at nominal input voltage)
24 V; 3.3 VDC
24 V; other
48 V; 3.3 VDC
48 V; other
Start-up voltage
Surge voltage
(1 sec. max.)
Reflected input ripple current
Conducted noise
(input)
Recommended input fuse
(slow blow)
24 V models:
9 VDC
(or lower)
48 V models:
18 VDC
(or lower)
24 Vin models:
50 V max.
48 Vin models:
100 V max.
24 V models:
50 mAp-p typ.
48 V models:
30 mAp-p typ.
EN 55022 class A, FCC part 15, level A
with external components
(see application note)
24 V models:
5000 mA
48 V models:
2500 mA
±1 %
±10 %
for single output models only.
Trim up via resistor over Trim and -Vout
Trim down via resistor over Trim and +Vout
(Resistor values tba, 0 Ohm=max. adjustment)
– Input variation (Vmin – Vmax)
– Load variation
single
dual
single
dual
output
output
output
output
models:
models:
models:
models:
0.2 % max.
0.5 % max.
0.5 % max.
(0 – 100 % load)
1.0 % max.
(8 – 100 % balanced load)
Output Specifications
Voltage set accuracy
Output voltage adj. range
Regulation
Minimum load
single output models:
not required
dual output models:
8 % of rated max current
(operation at lower
load condition will not damage the converters.
However, they may not meet all listed specifications)
3.3 & 5.0 VDC models:
75 mVp-p typ.
12 & 15 VDC models:
100 mVp-p typ.
24 VDC models:
150 mVp-p typ.
Measured with a 1µF M/C and a 10µF T/C
±0.02 %/K
at 150 % of Iout max., foldback
indefinite, automatic recovery
300 µs typ.
(25% load step change)
3.3
5
12
15
24
±12
±15
VDC
VDC
VDC
VDC
VDC
VDC
VDC
models:
models:
models:
models:
models:
models:
models:
10’300 µF
6’800 µF
1’200 µF
750 µF
300 µF
680 µF
(each output)
380 µF
(each output)
Ripple and noise
(20 MHz bandwidth)
Temperature coefficient
Output current limitation
Short circuit protection
Transient response setting time
Max. capacitive load
http://www.tracopower.com
Page 2 of 4
DC/DC Converters
THL 20WI Series
General Specifications
Temperature ranges
–
–
–
–
Operating (convection cooling 50 LFM, 0.25 m/s)
Operating with heat sink (natural convection 20 LFM)
Case temperature
Storage
models:
models:
models:
models:
models:
models:
models:
models:
models:
models:
–40°C to +75°C
(with derating)
–40°C to +85°C
(with derating)
+105°C max.
–50°C to +125°C
2.5 %/K above +64°C
2.7 %/K above +68°C
2.2 %/K above +60°C
2.0 %/K above +55°C
2.2 %/K above +60°C
3.3 %/K above +70°C
3.2 %/K above +74°C
3.1 %/K above +67°C
2.7 %/K above +63°C
3.1 %/K above +67°C
18.2°C/W
15.8°C/W
95 % rel H max.
>346’000 h
1500 VDC
1500 pF typ.
>1000 MOhm
3.5 ... 15 VDC or open circuit
0 ... 1.2 VDC or short circuit pin 6 and pin 2
8 mA
330 kHz typ.
(pulse width modulation PWM)
5‘000 m max.
(16‘400 ft)
approved
UL/cUL 60950-1, IEC/EN 60950-1
www.tracopower.com/products/thl20wi-cb.pdf
www.tracopower.com/products/thl20wi-csa.pdf
www.tracopower.com/products/thl20wi-reach.pdf
RoHS directive 2002/95/EC
metal
non conductive FR4
epoxy
(UL 94V-0 rated)
15 g
(0.53 oz)
max. 260°C / 10sec.
– CB test certificate according IEC 60950-1
– CSA certificate for UL/cUL 60950-1
– Reach
– RoHS
– Input/Output
– Input/Output
– Input/Output (500 VDC)
– On:
– Off:
– Off idle current:
20 Watt
Load derating
– without heat sink
24 V; 3.3 VDC
(convection cooling 50 LFM, 0.25 m/s)
48 V; 3.3 VDC
5, 12 & 15 VDC single output
24 VDC output
dual output
– with heat sink
24 V; 3.3 VDC
48 V; 3.3 VDC
5, 12 & 15 VDC output
24 VDC output
dual output
Thermal inpedance
Humidity
(non condensing)
Reliability, calculated MTBF
(MIL-HDBK-217F, at +25°C, ground benign)
Isolation voltage
(60sec.)
Isolation capacitance
Isolation resistance
Remote On/Off
– Natural convection
– Natural convection with heat sink
Switching frequency
(fixed)
Altitude during operation
Safety standards
(designed to meet)
Safety approvals
Environmental compliance
Physical Specifications
Casing material
Baseplate
Potting material
Weight
Soldering temperature
Application note :
www.tracopower.com/products/thl20wi-application.pdf
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
http://www.tracopower.com
Page 3 of 4
DC/DC Converters
THL 20WI Series
Outline Dimensions
20 Watt
7.62
(0.3)
5.08
(0.2)
Pin-Out
Pin
1
25.4
(1.0)
Single
+Vin (Vcc)
–Vin (GND)
+Vout
Trim
–Vout
Dual
+Vin (Vcc)
–Vin (GND)
+Vout
Common
–Vout
6
20.32
(0.8)
2
1
Bottom view
5
4
10.16
(0.4)
2
3
4
5
6
3
10.16
(0.4)
6.0
(0.24)
10.2
(0.4)
2.5
(0.1)
(0.1)
2.5
Remote On/Off
25.4
(1.0)
Dimensions in [mm], () = Inch
Pin diameter ø 1.0 (0.04)
Pin pitch tolerances: ±0.25 (±0.01)
Tolerances: ±0.5 (±0.02)
Heat-Sink (Option)
Order code: THL-HS1
(cont.: heat-sink, thermal pad, 2 clamps)
Material:
Aluminum
Finish:
Anodic treatment (black)
Weight:
4 g (0.14 oz) without converter
Thermal impedance after assembling: 15.8 K/W
31.0
(1.22)
max.
Note:
The product label on converter has to be re-
moved before mounting the heat-sink.
For volume orders converters will be sup-
plied with heat-sink already mounted. Please
contact factory for quotation.
Separate heat-sinks are only available for
prototypes and small quantity orders.
16.3
(0.64)
Heat-sink
Thermal pad
Clamp
Converter
17.5
(0.69)
max.
Specifications can be changed any time without notice.
Rev. 06/12.1
Jenatschstrasse 1 · CH-8002 Zurich · Switzerland
Tel. +41 43 311 45 11 · Fax +41 43 311 45 45 · info@traco.ch · www.tracopower.com
Page 4 of 4
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