Datasheet
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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 (nominal input) 24 Vin; 3.3 & 5 VDC models: 50 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 (nominal input) 24 Vin models: 770 mA typ.
48 Vin models: 380 mA typ.
Input voltage variation (dv/dt) 5 V/ms, max.
(complies with ETS300 132 part 4.4)
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.
Conducted noise (input) EN 55022 level A, FCC part 15, level A
with external capacitor.
See application note:
www.tracopower.com/products/thn15wi_application.pdf
Output Specifications
Voltage set accuracy ± 1 %
Regulation
– Input variation Vin min. to Vin max 0.2% max.
– Load variation (0 – 100 %) 0.2% max.
Minimum load 0% of rated max. load
Ripple and noise (20 MHz bandwidth) 100 mVpk-pk max.
with external capacitor
(see Note 1)
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 Vout models:
3.7 – 5.4 Vout
5 Vout models: 5.6 – 7.0 Vout
12 Vout models: 13.5 – 19.6 Vout
15 Vout models: 16.8 – 20.5 Vout
Start-up time 30ms max.
(at power on and remote on)
Transient response setting time (25% load step chang) 250 µs typ.
Max. capacitive load
3.3 & 5 VDC models: 1000 µF
12 VDC models: 330 µF
15 VDC models: 220 µF
General Specifications
Temperature ranges – Operating –40 °C ... +85 °C (with derating)
– Case temperature +105 °C max.
– Storage –55 °C ... +125 °C
Power derating 3 %/K above 70°C
Reliability, calculated MTBF (MIL-HDBK-217F ground benign) >560’000h @ +25°C
Isolation voltage (60sec) – Input/Output 1’500 VDC
Isolation capacity
– Input/Output 1000 pF typ.
Isolation resistance – Input/Output (500 VDC) >10 GOhm
Application notes can be downloaded under:
www.tracopower.com/products/thn15wi_application.pdf