THL25 datasheet(2/4 Pages) TOUCHSTONE

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DC/DC Converters

THL 25 Series

25 Watt

Input Specifications

Input current at no load (at nominal input voltage)

12 Vin models: 80 mA typ.

24 Vin models: 55 mA typ.

48 Vin models: 40 mA typ.

Recommended input fuse (slow blow)

12 Vin models: 5000 mA

24 Vin models: 2500 mA

48 Vin models: 1250 mA

Start-up voltage

12 Vin models: 9 VDC (or lower)

24 Vin models: 18 VDC (or lower)

48 Vin models: 36 VDC (or lower)

Surge voltage (0.1 sec. max.)

12 Vin models: 25 V max.

24 Vin models: 50 V max.

48 Vin models: 100 V max.

Reflected input ripple current

12 Vin models: 80 mAp-p typ.

24 Vin models: 50 mAp-p typ.

48 Vin models: 30 mAp-p typ.

Conducted noise (input)

EN 55022 class A with external L/C

EN 55022 class B with external filter

see application note

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 (with external input capacitor)

EN 61000-4-4, ±2 kV, perf. criteria A

EN 61000-4-5, ±1 kV perf. criteria A

external input capacitor:

Nippon chemi-con KY 220 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 between Trim and -Vout

Trim down via resistor between Trim and +Vout

resistor values see application note

Regulation

– Input variation (Vmin – Vmax)

0.2 % max.

– Load variation

single output models: 0.2 % max. (0 – 100 % load)

dual output models: 1.0 % max. (0 – 100 % balanced load)

–Cross regulation

dual output models: 5.0 % max. (25 – 100 % asymmetrical load)

Minimum load

not required

Ripple and noise (20 MHz bandwidth)

3.3 & 5.0 VDC models: 100 mVp-p typ.

12 & 15 VDC models: 150 mVp-p typ.

Temperature coefficient

±0.02 %/K

Output current limitation

at 150 % of Iout max., hiccup

Short circuit protection

indefinite, automatic recovery

Over voltage protection

shutdown at +20% of nominal output

Transient response setting time

250 µs typ. (25% load step change)

Max. capacitive load

3.3 VDC models: 10’300 µF

5 VDC models: 6’800 µF

12 VDC models: 1’200 µF

15 VDC models: 750 µF

±12 VDC models: 680 µF (each output)

±15 VDC models: 380 µF (each output)

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