THN20 Datasheet, PDF (2/4 Pages) Touchstone Semiconductor Inc – DC/DC Converters

DC/DC Converters
THN 20 Series 20 Watt
Input Specifications
Input current at no load (at nominal input voltage)


12 V models: 10 mA typ
24 V models: 6 mA typ.
48 V models: 4 mA typ.
Input current at full load (at nominal input voltage)
12 V; 3.3 VDC models:
12 V; other models:
24 V; 3.3 VDC models:
24 V; other models:
48 V; 3.3 VDC models:
48 V; other models:
1510 mA typ.
1960 mA typ.
755 mA typ.
970 mA typ..
375 mA typ.
485 mA typ.
Start-up voltage / under voltage shut down


12 Vin models: 9 VDC / 8 VDC
24 Vin models: 18 VDC / 16 VDC
48 Vin models: 36 VDC / 33 VDC
Surge voltage (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 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 adjustment 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:
dual output models:
– Load variation (0 – 100%) single output models:
dual output models balanced load:
dual output models unbalanced load (25% /100%):
0.2 % max.
0.5 % max.
0.2 % max.
1.0 % max.
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:
5 VDC models:
12 VDC models:
15 VDC models:
3.7 – 5.4 Vout
5.6 – 7.0 Vout
13.5 – 19.6 Vout
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)
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