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DC/DC Converters
THN 15WI Series, 15 Watt
Features
◆ Smallest encapsulated 15W Converter!
Ultra compact size: 1.0” x 1.0” x 0.4”
◆ Shielded metal case with isolated
baseplate
◆ Ultrawide 4:1 input ranges 9-36 VDC
or 18-75VDC
◆ Output voltage Trim
◆ I/O- isolation voltage 1500 VDC
◆ Very high efficiency up to 87%
◆ Operating temp. range : -40°C to +85°C
◆ Remote On/Off control
◆ Industry standard pinout
◆ 3-year product warranty The THN-15WI series is the latest generation of high performance dc-dc converter
modules setting new standards concerning power density. This product with 15W
comes in a encapsulated, shielded metal package with dimensions of only 1.0”x
1.0”x 0.4” and occupies 50% (!) less board space.
All models have ultra wide 4:1 input voltage range and precisely regulated output
voltages. Advanced circuit design provides high efficiency up to 87% which allows
a operating temperature range of –40°c to +85°C (with derating) Further features
include remote On/Off, trimable output and Basic Insulation. This product is fully
compliant to RoHS directive. Typical applications for these converters are battery
operated equipment, mobile instrumentation, distributed power architectures in
communication and industrial electronics and everywhere where space on PCB is
critical.
Order code Input voltage range Output voltage Output current max. Efficiency typ.
THN 15-2410WI 3.3 VDC 4‘000 mA 86 %
THN 15-2411WI 5.0 VDC 3‘000 mA 86 %
THN 15-2412WI 9 – 36 VDC 12 VDC 1‘300 mA 87 %
THN 15-2413WI (24 VDC nominal) 15 VDC 1’000 mA 87 %
THN 15-2421WI ± 5 VDC ± 1’500 mA 85 %
THN 15-2422WI ± 12 VDC ± 625 mA 87 %
THN 15-2423WI ± 15 VDC ± 500 mA 88 %
THN 15-4810WI 3.3 VDC 4‘000 mA 86 %
THN 15-4811WI 5.0 VDC 3‘000 mA 86 %
THN 15-4812WI 18 – 75 VDC 12 VDC 1‘300 mA 87 %
THN 15-4813WI (48 VDC nominal) 15 VDC 1’000 mA 87 %
THN 15-4821WI ± 5 VDC ± 1’500 mA 85 %
THN 15-4822WI ± 12 VDC ± 625 mA 86 %
THN 15-4823WI ± 15 VDC ± 500 mA 87 %
Models
CB
Scheme
UL 60950-1UL 60950-1
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All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
DC/DC Converters
THN 15WI Series 15 Watt
Input Specifications
Input current at no load 24 Vin; 3.3 VDC models: 50 mA typ.
24 Vin; 5 VDC models: 70 mA typ..
24 Vin; other models: 20 mA typ.
48 Vin; 3.3 & 5 VDC models: 40 mA typ.
48 Vin; other models: 15 mA typ.
Input current at full load 24 Vin; 3.3 VDC models: 690 mA typ.
24 Vin; other models: 770 mA typ..
48 Vin; 3.3 VDC models: 340 mA typ.
48 Vin; other models: 380 mA typ.
Start-up voltage / 24 Vin models: 9 VDC /8 VDC
under voltage shut down 48 Vin models: 18 VDC /16 VDC
Surge voltage 24 Vin models: 50 V max.
(100 msec. max.) 48 Vin models: 100 V max.
Reflected input ripple current 30 mA typ.
Conducted noise (input) EN 55022 level A, FCC part 15, level A
with external capacitor
see application note.
Output Specifications
Voltage set accuracy ±1 %
Output voltage adj. range ±10 % only for single output models.
see application note.
Regulation – Input variation (Vmin – Vmax) single output models: 0.2 % max.
dual output models: 0.5 % max.
– Load variation (0 – 100 %) single output models: 0.2 % max.
dual output models balanced load: 1.0 % max.
dual output models unbalanced load (25% /100%): 5.0 % max.
Minimum load not required
Ripple and noise (20 MHz bandwidth) 100 mVpk-pk max. with external capacitor
see application note.
Temperature coefficient ±0.02 %/K
Output current limitation at 150 % of Iout max., foldback
Short circuit protection indefinite (automatic recovery)
Over voltage protection 3.3 VDC models: 3.7 – 5.4 Vout
5 VDC models: 5.6 – 7.0 Vout
12 VDC models: 13.5 – 19.6 Vout
15 VDC models: 16.8 – 20.5 Vout
Start up time (nominal Vin and constant resistive load) 30 ms typ. (for power on and remote on)
Transient response setting time (25% load step change) 250 µs typ.
Max. capacitive load 3.3 & 5 VDC models: 1000 µF
12 VDC models: 330 µF
15 VDC models: 220 µF
±5 VDC models: ±500 µF
±12 VDC models: ±150 µF
±15 VDC models: ±100 µF
Application note
Download: www.tracopower.com/products/thn15wi_application.pdf
Page 3 of 3
J
enatschstrasse 1 · CH-8002 Zurich · Switzerland
Tel. +41 43 311 45 11 · Fax +41 43 311 45 45 · info@traco.ch · www.tracopower.com
DC/DC Converters
THN 15WI Series 15 Watt
General Specifications
Temperature ranges – Operating –40 °C to +85 °C (with derating)
– Case temperature +105 °C max.
– Storage –55 °C to +125 °C
Power derating 2.2 %/K above 60°C
Thermal inpedance – Natural convection 18.2 °C/W
Humidity (non condensing) 5 % to 95 % rel H max.
Reliability, calculated MTBF (MIL-HDBK-217F, @ +25°C, ground benign) >560’000 h
Isolation voltage (60sec) – Input/Output 1’500 VDC
Isolation capacity – Input/Output 1000 pF typ.
Isolation resistance – Input/Output (500 VDC) >1’000 MOhm
Remote On/Off – On: 3.0 ... 15 VDC or open circuit
– Off: 0 ... 1.2 VDC or short circuit pin 6 and pin 2
– Off idle current: 2.5 mA
Switching frequency (fixed) 400 kHz typ. (pulse width modulation PWM)
Vibration and thermal shock MIL-STD-810E
Safety standards UL /cUL 60950-1, EN 60950-1, IEC 60950-1
Safety approvals – UL/cUL www.ul.com -> certifications -> File E188913
Physical Specifications
Case material nickel coated copper
Baseplate non conductive FR4
Potting material epoxy (UL 94V-0 rated)
Weight 15 g (0.53 oz)
Soldering temperature max. 265 °C / 10sec.
Outline Dimensions
Dimensions in [mm], () = Inch
Pin diameter ø 1.0 (0.04)
Pin pitch tolerances: ±0.35 (0.014)
Tolerances: ±0.5 (0.02)
Rev. 07/08
Specifications can be changed any time without notice.
25.4
25.4
Bottom view
20.32
7.62
5.6
(0.3)
(0.22)
(0.8)
(1.0)
(1.0)
5.08
(0.2)
9.9
(0.39)
1
2
3
6
5
2.5
(0.1)
4
10.16
(0.4)
2.5
(0.1)
10.16
(0.4)
Pin Single Dual
1+Vin (Vcc) +Vin (Vcc)
2–Vin (GND) –Vin (GND)
3+ Vout + Vout
4Trim Common
5–Vout –Vout
6Remote On/Off
Pin-Out
