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Options: Positive Logic and Negative Logic Remote ON/OFF, Industrial Temperature
APPLICATIONS
SPECIFICATIONS:
KR/KRW Series
All specifications apply @ 25擄C ambient unless otherwise noted
INPUT SPECIFICATIONS
Input Voltage Range
KR .............................. 12V nominal input .............................. 9-18VDC
24V nominal input ............................ 18-36VDC
48V nominal input ............................ 36-75VDC
KRW ........................... 24V nominal input .............................. 9-36VDC
48V nominal input ............................ 18-75VDC
Input Filter ....................................................................................... Pi Type
Input Surge Voltage (100ms max) ....... 12V input ..........................36 VDC
24V input ..........................50 VDC
48V input ........................100 VDC
Input Reflected Ripple Current (nom. Vin and FL)........................20mAp-p
Start Up Time (nom. Vin and constant resistive load)..............450ms max.
Remote ON/OFF (Option) (See Note 6)
(Positive Logic)............... DC-DC ON .............Open or 3.5V < Vr < 12V
DC-DC OFF .............Short or 0V < Vr < 1.2V
(Negative Logic) ............. DC-DC ON ...............Short or 0V < Vr < 1.2V
DC-DC OFF ...........Open or 3.5V < Vr < 12V
Input Current of Remote Control Pin (nominal Vin) ........... -0.5mA ~ +1mA
Remote Off State Input Current (nominal Vin) ..................................2.5mA
GENERAL SPECIFICATIONS
Efficiency ........................................................................................see table
Switching Frequency
KR..........................................................................................300KHz typ.
KRW ......................................................................................200KHz typ.
Isolation Voltage (Input to Output)......................................... 1600VDC min.
Isolation Resistance ...............................................................10 ohms min.
Isolation Capacitance ................................................................ 300pF max.
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ENVIRONMENTAL SPECIFICATIONS
Operating Temperature
Standard .................................................... -25擄C ~ +85擄C (with derating)
鈥淚鈥?suffix (See Note 7)................................. -40擄C ~ +85擄C (non-derating)
鈥淚鈥?suffix (KRW series)................................ -40擄C ~ +85擄C (with derating)
Storage Temperature .......................................................... -55擄C ~ +105擄C
Maximum Case Temperature ............................................................. 100擄C
Relative Humidity...................................................................5% to 95% RH
Thermal Impedance (See Note 8)
Natural Convection ............................................................. 12擄C / Watt
Natural Convection with Heat-Sink..................................... 10擄C / Watt
Thermal Shock ..................................................................... MIL-STD-810F
Vibration ................................10~55Hz, 10G, 30 minutes along X, Y, and Z
MTBF (See Note 1) .......................................................... 3.145 x 10 hours
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OUTPUT SPECIFICATIONS
Output Voltage ..............................................................................see table
Voltage Accuracy (nominal Vin and full load) ...................................... 鹵1%
Output Current ..............................................................................see table
Output Power ......................................................................... 6 Watts max.
Line Regulation (LL to HL at FL)....................................................... 鹵0.2%
Load Regulation (no load to full load) .......... Single Output.............. 鹵0.2%
Dual Output ................... 鹵1%
Cross Regulation (Dual) (Asymmetrical load 25% / 100% FL) ............ 鹵5%
Minimum Load ....................................................................................... 0%
Ripple/Noise (20 MHz BW) ...........................................................50mVp-p
Temperature Coefficient ................................................. 鹵0.02% / 擄C max.
Transient Response Recovery Time
25% load step change.................................................... (Single) 200us
FL to HL 鹵1% error band
(Dual) 200us
PHYSICAL SPECIFICATIONS
Weight ..................................................................................... 27g (0.95 oz)
Dimensions....................... 2.0 x 1.0 x 0.40 inches (50.8 x 25.4 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
Approvals and Standards .................. IEC60950-1, UL60950-1, EN60950-1
EMI .....................................EN55022 .............................................. Class A
ESD ....................EN61000-4-2鈥︹€?.
Air 鹵 8KV 鈥︹€?Perf. Criteria B
Contact 鹵 6KV
PROTECTION SPECIFICATIONS
Over Load Protection (% of full load at nom. input) .................... 170% typ.
Short Circuit Protection. ............................Continuous, automatic recovery
Radiated Immunity..............EN61000-4-3............... 10V/m Perf. Criteria A
Fast Transient.....................EN61000-4-4................. 鹵2KV Perf. Criteria B
Surge (See Note 9).............EN61000-4-5................. 鹵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
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