YCL NAD-20C Datasheet

Date: Sep 19,2003 31

18Watts 3.3V & 5V output Power Supply

Model No.: NAD-20C

Feature:

l 90 to 264Vac universal input range.
l UL, CSA, TUV, CB safety approval.
l EMI/RFI meet VDE & FCC limit B.
l Low cost & compact size.
l Input with inlet socket.
l 18 Watts in 109.85 ×52×32.5 mm size.
l 2 Year Warranty.

Specifications: typical at nominal line, full load at 25° C.

Input Specifications: General Specifications:

Input voltage: 90 to 264Vac Efficiency: 70% typical at full load
Input Frequency: 47 Hz to 63Hz Hold-up time: 15ms @ 115Vac full load

EMI/RFI: VDE & FCC Class B limits Input inrush current: 20A at 115Vac

40A at 230Vac

Earth leakage: 0.2mA max @ 115Vac

0.4mA max @ 230Vac

Dielectric Withstand:
Input/output: 3000Vac

Input/Ground: 1500Vac

Output Specifications:

Output Rating: Vo1: +5V/1A

Vo2: +3.3V/4A

Output Voltage Accuracy: ± 5% max.

¬Safety approval: UL UL60950
CSA C22.2 NO.60950
TUV EN60950
CB IEC950

Line Regulation: ± 1% max.

Switching frequency: 30kHz
Weight: 180g(5.3Oz)

Load Regulation: ± 3% max.

(Full to half load)

MTBF: 100,000hours(MIL-HDBK-217F)

Environmental Specifications: Transient Response: ± 1% max.dev.

(Full to half load) 500uS recovery

Operating temperature: 0 to +50 °C
Temperature Coefficient: ± 0.04% /°C Storage temperature: -20 to +85°C
Ripple & Noise: 50mVp-p max Humidity: 5 to 95 % RH non-condensing

Vibration: 2.4G , 5 to 500Hz Protections: a. Over voltage protection

b. Over power protection

c. Short circuit protection

Cooling: Free air convection
Note:

1. Vibration test: Three orthogonal axes, random vibration, 10 minutes for each axis.

2. Maximum output power is 18W.

3. At least 20% of load is required to obtain stable regulation.

4. Ripple & noise test method is measured at output terminal across a 0.1uF ceramic cap

& a 10uF tantalum or electrolytic cap in parallel with a 20MHz bandwidth oscilloscope
directly.

¬ Please refer the safety approval status on appendix 1, For latest safety approval status

Please consult YCL or visit" www.ycl.com.tw

Date: Sep 19,2003 32

18Watts 3.3V &5V output Power Supply
Model No.: NAD-20C

Dimensions: mm± 0.5mm

PIN

Function PIN

Function
1 +5V 4 COM
2 +3.3V 5 COM
3 +3.3V

l AC input socket: Super com SC-9R, Inalways 0714, Rongfeng SS-7B or equivalent.
l DC output mating connector is Molex 67280-0500 ,Ever 2532-05K or equivalent.