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
APPLICATIONS
● Measurement
● 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
● Wireless Network
● Telecom/Datacom
● Industry Control System
● Semiconductor Equipment
SPECIFICATIONS: YFW15 Ultra Wide Series
All specifications apply @ 25°C ambient unless otherwise noted
INPUT SPECIFICATIONS
PROTECTION SPECIFICATIONS
Input Voltage Range ............ 24V nominal input...........................9-36VDC
48V nominal input........................ 18-75VDC
Over Voltage Protection .......................5V output.................................6.2V
(zener diode clamp)
12V output................................15V
15V output................................18V
Input Filter....................................................................................... Pi Type
Over Load Protection (% of full load at nominal input)............... 150% max.
Short Circuit Protection......................................Hiccup, automatic recovery
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.
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
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
Thermal Impedance (Note 8)
Natural Convection.............................................................10°C / Watt
Natural Convection with Heat-Sink..................................8.24°C / Watt
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%
Thermal Shock ..................................................................... MIL-STD-810F
Vibration ................................10~55Hz, 10G, 30 minutes along X, Y, and Z
MTBF (Note 1)......................................................................2.041 X 106 hrs
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
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
SAFETY & EMC
Safety Standard Pending.............................................................UL60950-1
EM ......................................EN55022 ..............................................Class A
GENERAL SPECIFICATIONS
Air
± 8KV
............... Criteria B
ESD ....................EN61000-4-2........
Efficiency.......................................................................................see table
Switching Frequency................................................................270KHz typ.
Isolation Voltage (Input to Output) .......................................1600VDC min.
Isolation Resistance............................................................. 109 ohms min.
Isolation Capacitance............................................................... 300pF max.
Contact ± 6KV
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
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797