TDN 3WI Series, 3 Watt
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All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
Input Specifications
Input current at no load 12 Vin models: 40 mA typ.
24 Vin models: 25 mA typ.
48 Vin models: 14 mA typ.
Surge voltage (1 s max.) 12 Vin models: 25 V max.
24 Vin models: 50 V max.
48 Vin models: 100 V max.
Reflected ripple current 20 mAp-p typ.
Input filter internal capacitor
Conducted noise EN 55032 class A or class B with external
components (see supporting documents)
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 all models: Nippon chemi-con KY 220µF/100V
Conducted immunity EN 61000-4-6, 10 Vrms, perf. criteria A
Power frequency magnetic field EN 61000-4-8, 100 A/M, perf. criteria A
External input fuse required 12 Vin models: 1.6 A (slow blow)
24 Vin models: 0.8 A (slow blow)
48 Vin models: 0.5 A (slow blow)
Output Specifications
Voltage set accuracy ±1 % max.
Voltage balance (dual output models) 1 % max.
Regulation – Input variation 0.2 % max.
– Load variation 0 – 100 % single output: 1 % max.
dual output: 1 % max. (balanced load)
cross regulation - dual output: 5 % max. (asymmetrical load 25 % / 100 %)
Temperature coefficient ±0.02 %/K typ.
Ripple and noise (20 MHz Bandwidth) 50 mVp-p typ.
Start up time – Power ON 10 ms typ. / 20 ms max.
(constant resistive load) – Remote ON 10 ms typ. / 20 ms max.
Transient response (25% load step change) 500 µs typ.
Short circuit protection continuous, automatic recovery
Capacitive load – Single output 3.3 VDC models: 4700 F max.
5.0 VDC models: 2530 F max.
9.0 VDC models: 1470 F max.
12 VDC models: 1220 F max.
15 VDC models: 1000 F max.
24 VDC models: 470 F max.
– Dual output ±5.0 VDC models: 1470 F max. (each output)
±12 VDC models: 680 F max. (each output)
+15 VDC models: 470 F max. (each output)
General Specifications
Temperature ranges – Operating (natural convection: 20 LFM, 0.1m/s) –40°C to +70°C (without derating)
– Case temperature +105°C max.
– Storage temperature –55°C to +125°C
Derating 2.9%/K above 70°C
Humidity (non condensing) 5 – 95 % rel H max.