DB Series
2:1 Input Voltage Range
Single, Dual, and Triple Outputs
FEATURES
UL E155800
TUV
● High Efficiency up to 90%
CB
● Fixed Switching Frequency
CE MARK
● Six-Sided Continuous Shield
● 2:1 Wide Input Voltage Range
● 40 Watts Maximum Output power
● Standard 2.02” x 2.02” x 0.4” Package
● International Safety Standard Approval
● Single, Dual, Dual Positive (Total Output Current 8A), and Triple Outputs Available
SPECIFICATIONS: DB Series
All specifications apply @ 25°C ambient unless otherwise noted
INPUT SPECIFICATIONS
OUTPUT SPECIFICATIONS (CONTINUED)
Input Voltage Range ............ 12V nominal input.......................... 9-18VDC
Minimum Load (See Note 2)...........Single & Dual Positive..................... 0%
24V nominal input........................ 18-36VDC
Dual & Triple ........................10% of FL
48V nominal input........................ 36-75VDC
Ripple/Noise (See Note 5)..............................................................see table
(20MHz -Measured with a 104pF/50V MLCC)
Under Voltage Lockout
12V nominal input........... DC-DC ON...........................................9VDC
DC-DC OFF.........................................8VDC
Transient Response Recovery Time ...................................................250us
(25% load step change)
24V nominal input........... DC-DC ON......................................17.8VDC
DC-DC OFF.......................................16VDC
PROTECTION SPECIFICATIONS
Over Voltage Protection ...................................1.5V Output.................3.9V
48V nominal input........... DC-DC ON.........................................36VDC
DC-DC OFF.......................................34VDC
(Zener diode clamp)
1.8V Output.................3.9V
2.5V Output.................3.9V
3.3V Output.................3.9V
5V Output....................6.2V
12V Output...................15V
15V Output...................18V
Input Filter.................................................................................... L-C Type
Input Voltage Variation......... dv/dt............................................ 5V/ms max
(Complies with ETS300 132 part 4.4)
Input Surge Voltage (100ms max) ............... 12V input ...................36VDC
24V input ...................50VDC
Over Load Protection (% of FL at nominal input) ....................... 150% max.
Short Circuit Protection......................................Hiccup, automatic recovery
Over Temperature Protection.......................................................115°C typ.
48V input .................100VDC
Input Reflected Ripple Current (See Note 6) ................................40mAp-p
(nominal Vin and full load)
Start Up Time (nominal Vin and constant resistive load)
GENERAL SPECIFICATIONS
Power Up................................................................................25ms typ.
Remote ON/OFF ....................................................................25ms typ.
Efficiency ........................................................................................see table
Switching Frequency (See Note 8)............................................300KHz typ.
Isolation Voltage (Input to Output).........................................1600VDC min.
Isolation Voltage (Input/Output to Case) ...............................1600VDC min.
Isolation Resistance ...............................................................109 ohms min.
Isolation Capacitance ............................................................. 1000pF max.
Remote ON/OFF (See Note 7)
DC-DC ON .....................................................Open or 3.5V < Vr < 12V
DC-DC OFF......................................................Short or 0V < Vr < 1.2V
Remote Off Input Current (nominal Vin) ...........................................2.5mA
OUTPUT SPECIFICATIONS
Output Voltage..............................................................................see table
ENVIRONMENTAL SPECIFICATIONS
Voltage Accuracy (nom Vin and full load).........Single & Dual............. ±1%
Triple (main) .............. ±1%
Operating Temperature ................................ -40°C to +85°C (with derating)
Storage Temperature ..........................................................-55°C ~ +105°C
Maximum Case Temperature........................................................... +100°C
Relative Humidity...................................................................5% to 95% RH
Temperature Coefficient................................................... ±0.02% / °C max.
(auxiliary)......... ±5%
Voltage Adjustability (See Note 1) ..................................................... ±10%
(Single & Dual Outputs only-not including Dual positive & triple)
Output Current ..............................................................................see table
Output Power........................................................................ 40 watts max.
Thermal Impedance (See Note 10)
Line Regulation (LL to HL at FL).................. Single & Dual.............. ±0.5%
Triple (main) .................. ±1%
Natural Convection............................................................9.2°C / Watt
Heat-Sink with 20LFM .........................................................7.6°C/Watt
Heat-Sink with 500LFM .......................................................2.8°C/Watt
Triple (auxiliary)............. ±5%
Load Regulation (See Note 3) ..................... Single......................... ±0.5%
Thermal Shock .................................................................... MIL-STD-810D
Vibration ................................10~55Hz, 10G, 30 minutes along X, Y, and Z
MTBF (See Note 9) .............................................................. 1.398 x 106 hrs
(10% to 100% FL)
Dual ............................... ±1%
Triple (main) .................. ±2%
(auxiliary)............. ±5%
Load Cross Regulation (See Note 4)....... Triple (main) ...................... ±1%
Dual/Triple (auxiliary)......... ±5%
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
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