Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833

603-778-2300 www.wallindustries.com Fax 603-778-9797

YFW15 Ultra Wide Series

Single and Dual Output

15 Watt DC/DC Converter

4:1 Wide Input Voltage Range

Rev B

FEATURES

● UL60950-1 Licensed

● 15 Watts Output Power

● Output Current up to 3A

● High Efficiency up to 82%

● Fixed Switching Frequency

● Six-Sided Continuous Shielding

● 4:1 Ultra Wide Input Voltage Range

● Standard 2.0 x 1.6 x 0.4 Inch Package

● ISO9001 Certified Manufacturing Facilities

● Compliant to RoHS EU Directive 2002/95/EC

SPECIFICATIONS: YFW15 Ultra Wide Series

All specifications apply @ 25°C ambient unless otherwise noted

INPUT SPECIFICATIONS

Input Voltage Range ............ 24V nominal input ...........................9-36VDC

48V nominal input ........................ 18-75VDC

Input Filter ....................................................................................... Pi Type

Input Surge Voltage (100ms max) ....... 24V input ...........................50VDC

48V input .........................100VDC

Input Reflected Ripple Current (nominal Vin and full load) ...........20mAp-p

Start Up Time (nominal Vin and constant resistive load) .............20ms typ.

Remote ON/OFF (Note 7)

(Positive Logic)............... DC-DC ON.............Open or 3.5V < Vr < 12V

DC-DC OFF .............Short or 0V < Vr < 1.2V

Input Current of Remote Control Pin (nominal Vin) ........ -0.5mA ~ +0.5mA

Remote Off Input Current (nominal Vin) ............................................20mA

OUTPUT SPECIFICATIONS

Output Voltage ..............................................................................see table

Voltage Accuracy (nominal Vin and full load) ...................................... ±1%

Voltage Adjustability........................................................................... ±10%

Output Current ..............................................................................see table

Output Power ........................................................................ 15 watts max.

Line Regulation (LL to HL at FL)....................................................... ±0.2%

Load Regulation (min load to full load) ........ Single.......................... ±0.5%

Dual ............................... ±1%

Cross Regulation (Dual) (Asymmetrical load 25% / 100% FL) ............ ±5%

Minimum Load (Note 6) ................................................................see table

Ripple/Noise (20 MHz BW) .......................................................... 75mVp-p

Temperature Coefficient ................................................. ±0.02% / °C max.

Transient Response Recovery Time (25% load step) ...................... 250µs

GENERAL SPECIFICATIONS

Efficiency.......................................................................................see table

Switching Frequency................................................................270KHz typ.

Isolation Voltage (Input to Output) ....................................... 1600VDC min.

Isolation Resistance............................................................. 10

Isolation Capacitance............................................................... 300pF max.

PROTECTION SPECIFICATIONS

Over Voltage Protection .......................5V output................................. 6.2V

(zener diode clamp)

12V output................................ 15V

15V output................................ 18V

Over Load Protection (% of full load at nominal input) ............... 150% max.

Short Circuit Protection...................................... Hiccup, automatic recovery

ENVIRONMENTAL SPECIFICATIONS

Operating Temperature ................................ -40°C ~ +85°C (with derating)

Storage Temperature .......................................................... -55°C ~ +105°C

Maximum Case Temperature ............................................................. 100°C

Relative Humidity...................................................................5% to 95% RH

Thermal Impedance (Note 8)

Natural Convection ............................................................. 10°C / Watt

Natural Convection with Heat-Sink.................................. 8.24°C / Watt

Thermal Shock ..................................................................... MIL-STD-810F

Vibration ................................10~55Hz, 10G, 30 minutes along X, Y, and Z

MTBF (Note 1)......................................................................2.041 X 10

PHYSICAL SPECIFICATIONS

Weight ..................................................................................... 48g (1.69 oz)

Dimensions....................... 2.0 x 1.6 x 0.40 inches (50.8 x 40.6 x 10.2 mm)

Case Material ..............................................................Nickel-coated copper

Base Material...................................................Non-conductive black plastic

Potting material..................................................................Epoxy (UL94-V0)

Shielding......................................................................................... six-sided

SAFETY & EMC

Safety Standard Pending.............................................................UL60950-1

EM ......................................EN55022 .............................................. Class A

ESD ....................EN61000-4-2 ...... ..

............... Criteria B

Radiated Immunity..............EN61000-4-3............... 10V/m Perf. Criteria A

Fast Transient.....................EN61000-4-4................. ±2KV Perf. Criteria B

Surge (See Note 9).............EN61000-4-5................ .±1KV Perf. Criteria B

Conducted Immunity...........EN61000-4-6............ 10 Vrms Perf. Criteria A

Due to advances in technology, specifications subject to change without notice

APPLICATIONS

● Measurement

● Wireless Network

● Telecom/Datacom

● Industry Control System

● Semiconductor Equipment

Air

± 8KV

Contact ± 6KV