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DC/DC Converters

THM 3WI Series

3 Watt

Input Specifications

Input current at no load

5 Vin models: 20 mA typ.

24 Vin models: 6 mA typ.

48 Vin models: 4 mA typ.

Start-up voltage / under voltage shut down

5 Vin models: 4.5 VDC / 4.0 VDC typ.

24 Vin models: 9.0 VDC / 8.0 VDC typ.

48 Vin models: 18 VDC / 16 VDC typ.

Surge voltage (1 sec. max.)

5 Vin models: 16 VDC max.

24 Vin models: 50 VDC max.

48 Vin models: 100 VDC max.

Conducted noise

EN 55022 class 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 (with external input capacitor / diode)

EN 61000-4-4, ±2 kV, perf. criteria A

EN 61000-4-5, ±2 kV perf. criteria A

– external input capacitor:

5 Vin models: Nippon chemi-con KY 1000 µF/ 25 V and

reverse diode (Vishay V10P45) in parallel

24 Vin models: Nippon chemi-con KY 470 µF/ 50 V

48 Vin models: Nippon chemi-con KY 330 µF/ 100 V

Conducted immunity

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

External input fuse required (recommended values, slow blow type) 5 Vin models: 2.5 A

24 Vin models: 1.5 A

48 Vin models: 1 A

Output Specifications

Voltage set accuracy

±1.0 % max.

Regulation

– Input variation

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: 5.0 % max.

Minimum load

not required

Start up time

30 mS

Ripple and noise (20 MHz Bandwidth)

3.3 & 5.0 VDC models: 30 mVp-p typ. with cap. 10µF/25V X7R MLCC

12 & 15 VDC models: 40 mVp-p typ. with cap. 10µF/25V X7R MLCC

24 VDC models: 50 mVp-p typ. with cap. 4.7µF/50V X7R MLCC

Transient response (25% load step change)

250 µs typ.

Current limitation

150 % Iout nominal typ. (hiccup mode)

Short circuit protection

continuous (automatic recovery)

Over voltage protection

3.3 VDC output models: 3.7 – 5.4 VDC

5 VDC output models: 5.6 – 7.0 VDC

12 VDC output models: 13.5 – 19.6 VDC

15 VDC output models: 18.3 – 22.0 VDC

24 VDC output models: 29.1 – 32.5 VDC

Capacitive load

3.3 VDC output models: 1050 µF max.

5 VDC output models: 750 µF max.

12 VDC output models: 130 µF max.

15 VDC output models: 100 µF max.

24 VDC output models: 39 µF max.

±5 VDC output models: 430 µF max. (each output)

±12 VDC output models: 75 µF max. (each output)

±15 VDC output models: 56 µF max. (each output)

All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.

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