LCC250 Data Sheet
Environmental Specications
Operating temperature Suffix 4P (Conduction): -40 °C to +85 °C Baseplate Temperature
Suffix 7P (Convection): -40 °C to +85 °C Ambient Temperature
Storage temperature -40 °C to +85 °C
Humidity 10% to 100% (Condensing & Non-Condensing)
Altitude Operating: 13,000 feet
Non-Operating: 50,000 feet
Shock IEC68-2-27
Vibration IEC68-2-6 / IEC721-3-2
Ingress protection IP64 Rated
MTBF (calculated) > 780,000 hours at 100% load; Low line; Telcordia SR-332
Electrical Specications
Output
Output rating 12 V @ 20.8 A
24 V @ 10.4 A
48 V @ 5.2 A
Set point ±0.2% Factory set point
Total regulation range ±2% Line/Load/Temperature
Rated load 250 W maximum
Minimum load 0 A Load No loss of regulation
Capacitive load 0 - 330 μF/Amp
Output voltage overshoot No overshoot/undershoot outside the regulation band during
on or off cycle
Constant output voltage adjustment range 12 V: +10 / -10%
24 V: +14.6 / -15%
48 V: +15% / -15%
Adjust via VR2
Constant output current adjustment range +0 / -50% Adjust via VR1
CC mode supported from Vo nominal down to 80% Vo
Output ripple and noise 1% 0 to 330 μF/Amp
Transient response ±5% Vo max transient;
recovery < 500 μs max
50% Load Step @ 1 A/μs
Step Load verified at: 50% to 100% Load; 90 - 264 Vac
input; Capacitive load from 0 to 330 μF/Amp
Remote sense Capable of Stable Offset of ±0.5 Vdc at output
cable termination
+SENSE (Red Wire); -SENSE (Black Wire)
Output On/Off Remote On/Off referenced to secondary side.
Positive or Negative logic user selectable via CN2.
Factory default is Positive logic
On/Off (Orange Wire); On/Off Return (White Wire)
Overcurrent protection (OCP) ≤ 150% Io Auto-recovery
Overvoltage protection (OVP) 110% to 135% Vo Latching mode; Requires input AC recycle
Overtemperature protection (OTP) Auto-recovery; hiccup mode
Output isolation 3000 Vac Input to Output
1500 Vac Input to Ground
500 Vac Output to Ground