THN20WI datasheet(2/4 Pages) TOUCHSTONE

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DC/DC Converters

THN 20WI Series

20 Watt

Input Specifications

Input current at no load (at nominal input voltage)

24 V models: 6 mA typ.

48 V models: 4 mA typ.

Input current at full load (at nominal input voltage)

24 V; 3.3 VDC models: 760 mA typ.

24 V; other models: 980 mA typ..

48 V; 3.3 VDC models: 380 mA typ.

48 V; other models: 490 mA typ.

Start-up voltage / under voltage shut down

24 Vin models: 9 VDC / 8 VDC

48 Vin models: 18 VDC / 16 VDC

Surge voltage (1 sec. max.)

24 Vin models: 50 V max.

48 Vin models: 100 V max.

Reflected input ripple current

30 mAp-p typ.

Conducted noise (input)

EN 55022 class A, FCC part 15, level A

without external components

ESD (electrostatic discharge)

EN 61000-4-2, air ±8 kV, contact ±6 kV,

perf. criteria A

Radiated immunity

EN 61000-4-3, 10 V/m, perf. criteria A

Fast transient / Surge

EN 61000-4-4, ±2 kV, perf. criteria A

EN 61000-4-5, ±2 kV perf. criteria A

With external input capacitor e.g. Nippon

chemi-con KY 200 µF, 100 V, ESR 48 mOhm

Conducted immunity

EN 61000-4-6, 10 Vrms, perf. criteria A

Output Specifications

Voltage set accuracy

±1 %

Output voltage adj. range

±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)

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)

3.3 & 5.0 VDC models: 75 mVp-p typ.

other models: 100 mVp-p typ.

Measured with a 1µF M/C and a 10µF T/C

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

250 µs typ. (25% load step change)

Max. capacitive load

3.3 VDC models: 10’000 µF

5 VDC models: 5’000 µF

12 VDC models: 850 µF

15 VDC models: 700 µF

±12 VDC models: 500 µF (each output)

±15 VDC models: 350 µF (each output)

THN20WI Datasheet(PDF) 2 Page - Touchstone Semiconductor Inc

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