DBW24S33-33 Datasheet, PDF (1/3 Pages) Wall Industries,Inc. – Single and Dual Outputs 40 Watt DC/DC Converter 4:1 Ultra Wide Input Voltage Range

DBW Series
Single and Dual Outputs
40 Watt DC/DC Converter
4:1 Ultra Wide Input Voltage Range
FEATURES
● High Efficiency up to 88%
● RoHS Directive Compliant
● Fixed Switching Frequency
● Six-Sided Continuous Shield
● 40 Watts Maximum Output power
● Single and Dual Outputs Available
● 4:1 Ultra Wide Input Voltage Range
● Standard 2.02” x 2.02” x 0.4” Package
SPECIFICATIONS: DBW 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
Under Voltage Lockout
24V nominal input........... DC-DC ON ..........................................9 VDC
DC-DC OFF ........................................8 VDC
48V nominal input........... DC-DC ON ........................................18 VDC
DC-DC OFF ......................................16 VDC
Input Filter ....................................................................................... Pi Type
Input Voltage Variation......... dv/dt ............................................ 5V/ms max
(Complies with ETS300 132 part 4.4)
Input Surge Voltage (100ms max) ............... 24V input ...................50VDC
48V input .................100VDC
Input Reflected Ripple Current (nominal Vin and FL) ...................20mAp-p
Start Up Time (nominal Vin and constant resistive load)
Power Up..............................................................................20ms max.
Remote ON/OFF ..................................................................20ms max.
Remote ON/OFF (See Note 4)
Positive Logic ................ DC-DC ON ................Open or 3V < 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 3V < Vr < 12V
Remote Off Input Current (nominal Vin) ..............................................3mA
OUTPUT SPECIFICATIONS
Output Voltage ..............................................................................see table
Voltage Accuracy (nom Vin and full load) ........................................... ±1%
Voltage Adjustability (See Note 1) ..................................................... ±10%
Output Current ..............................................................................see table
Output Power ........................................................................ 40 watts max.
Line Regulation (LL to HL at FL)....................................................... ±0.2%
Load Regulation (See Note 2) ..................... Single Output............. ±0.5%
(min. load to 100% load)
Dual Output ................... ±1%
Load Cross Regulation (See Note 3) ........... Dual Output ................... ±5%
Minimum Load (See Note 8) .........................................................see table
Ripple/Noise (See Note 9) ............................................................see table
Transient Response Recovery Time..................................................250us
(25% load step change)
UL
TUV
CB
CE MARK
PROTECTION SPECIFICATIONS
Over Voltage Protection ................................... 3.3V Output................. 3.9V
(Zener diode clamp)
5V Output.................... 6.2V
12V Output................... 15V
15V Output................... 18V
±12V Output............... ±15V
±15V Output............... ±18V
Over Load Protection (% of FL at nominal input) ....................... 150% max.
Short Circuit Protection...................................... Hiccup, automatic recovery
Over Temperature Protection .......................................................110°C typ.
GENERAL SPECIFICATIONS
Efficiency ........................................................................................see table
Switching Frequency .................................................................300KHz typ.
Isolation Voltage (Input to Output)......................................... 1600VDC min.
Isolation Voltage (Input/Output to Case) ............................... 1600VDC min.
Case Grounding (connect case to -Vin with decoupling Y cap) ........... TBD
Isolation Resistance ...............................................................10⁹ ohms min.
Isolation Capacitance ............................................................. 1500pF max.
ENVIRONMENTAL SPECIFICATIONS
Operating Ambient Temperature ............. -40°C to +55°C (without derating)
+55°C to +105°C (with derating)
Storage Temperature .......................................................... -55°C ~ +125°C
Maximum Case Temperature ........................................................... +105°C
Relative Humidity...................................................................5% to 95% RH
Temperature Coefficient ................................................... ±0.02% / °C max.
Thermal Impedance (See Note 6)
Without Heat-Sink.............................................................. 9.2°C / Watt
With Heat-Sink..................................................................... 7.6°C/Watt
Thermal Shock .................................................................... MIL-STD-810D
Vibration ................................10~55Hz, 10G, 30 minutes along X, Y, and Z
MTBF (See Note 5) ........Bellcore TR-NWT-000332............ 1.105 x 10⁶ hrs
MIL-STD-217F ............................. 1.511 x 10⁵ hrs
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax [phone]