Datasheet

http://www.tracopower.com
DC/DC Converters
TMDC 20 Series 20 Watt
Input Specifications
Input current at no load (nominal input voltage) 24 Vin models: 70 mA typ
48 Vin models: 35 mA typ.
Surge voltage (100 msec. max.) 24 Vin models: 50 V max.
48 Vin models: 100 V max.
Start up time 30 ms max.
Conducted noise (input) EN 55022 class A, FCC part 15 class A
without external components
Start-up voltage / under voltage shut down 24 Vin models: 9 VDC max./ 7.5 VDC typ.
48 Vin models: 18 VDC max./ 16 VDC typ.
ESD
(electrostatic discharge) EN 61000-4-2, air ±8 kV, contact ±4 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
Conducted immunity EN 61000-4-6, 10 Vrms, perf. criteria A
Output Specifications
Voltage set accuracy ±2.0 % max.
Regulation – Input variation Vin min. to Vin max. 0.5 % max.
– Load variation 0 – 100 % 0.5 % max.
Minimum load not required
Temperature coefficient ±0.02 %/K
Ripple and noise (20 MHz Bandwidth) 5.1 VDC models: 100 mVpk-pk. typ.
12 & 24 VDC models: 150 mVpk-pk typ.
48 VDC models: 200 mVpk-pk. typ.
Transient response (alignment to 1% at load step change 75% to 100% ) 250 µs typ.
Over voltage protection 120 % of Vout (Zener diode clamp)
Output current limitation at 150% of Iout max.
Short circuit protection hiccup mode, automatic recovery
Capacitive load 5.1 VDC models: 6’800 µF max.
12.0 VDC models: 1’160 µF max.
24.0 VDC models: 300 µF max.
48.0 VDC models: 75 µF max.
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
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