DB Series
2:1 Input Voltage Range
40 Watt DC/DC Converter
Single, Dual, and Triple Outputs
FEATURES
●
High Efficiency up to 90%
●
Fixed Switching Frequency
●
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
UL E155800
TUV
CB
CE MARK
SPECIFICATIONS:
DB Series
All specifications apply @ 25°C ambient unless otherwise noted
INPUT SPECIFICATIONS
Input Voltage Range ............ 12V nominal input .......................... 9-18VDC
24V nominal input ........................ 18-36VDC
48V nominal input ........................ 36-75VDC
Under Voltage Lockout
12V nominal input........... DC-DC ON ...........................................9VDC
DC-DC OFF .........................................8VDC
24V nominal input........... DC-DC ON ......................................17.8VDC
DC-DC OFF .......................................16VDC
48V nominal input........... DC-DC ON .........................................36VDC
DC-DC OFF .......................................34VDC
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
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)
Power Up................................................................................25ms typ.
Remote ON/OFF ....................................................................25ms typ.
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 (CONTINUED)
Minimum Load (See Note 2)........... Single & Dual Positive..................... 0%
Dual & Triple ........................ 10% of FL
Ripple/Noise (See Note 5)..............................................................see table
(20MHz -Measured with a 104pF/50V MLCC)
Transient Response Recovery Time ...................................................250us
(25% load step change)
PROTECTION SPECIFICATIONS
Over Voltage Protection ................................... 1.5V Output................. 3.9V
(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
Over Load Protection (% of FL at nominal input) ....................... 150% max.
Short Circuit Protection...................................... Hiccup, automatic recovery
Over Temperature Protection .......................................................115°C typ.
GENERAL SPECIFICATIONS
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 ...............................................................10 ohms min.
Isolation Capacitance ............................................................. 1000pF max.
9
OUTPUT SPECIFICATIONS
Output Voltage ..............................................................................see table
Voltage Accuracy (nom Vin and full load) .........Single & Dual............. ±1%
Triple (main) .............. ±1%
(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.
Line Regulation (LL to HL at FL).................. Single & Dual.............. ±0.5%
Triple (main) .................. ±1%
Triple (auxiliary) ............. ±5%
Load Regulation (See Note 3) ..................... Single......................... ±0.5%
(10% to 100% FL)
Dual ............................... ±1%
Triple (main) .................. ±2%
(auxiliary) ............. ±5%
Load Cross Regulation (See Note 4) ....... Triple (main) ...................... ±1%
Dual/Triple (auxiliary)......... ±5%
ENVIRONMENTAL SPECIFICATIONS
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.
Thermal Impedance (See Note 10)
Natural Convection ............................................................ 9.2°C / Watt
Heat-Sink with 20LFM ......................................................... 7.6°C/Watt
Heat-Sink with 500LFM ....................................................... 2.8°C/Watt
Thermal Shock .................................................................... MIL-STD-810D
Vibration ................................10~55Hz, 10G, 30 minutes along X, Y, and Z
MTBF (See Note 9) .............................................................. 1.398 x 10 hrs
6
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
DB Series
2:1 Input Voltage Range
40 Watt DC/DC Converter
Single, Dual, and Triple Outputs
SPECIFICATIONS (CONTINUED)
All specifications apply @ 25°C ambient unless otherwise noted
PHYSICAL SPECIFICATIONS
Weight .................................................................................... 60g (2.11 oz)
Dimensions ................. 2.02 x 2.02 x 0.40 inches (51.3 x 51.3 x 10.2 mm)
Case Material ............................................................ Nickel-coated copper
Base Material .................................................... Non-conductive black FR4
Potting material ................................................................Epoxy (UL94-V0)
Shielding .................................................................................... six – sided
SAFETY & EMC
(See Note 11)
Approvals and Standards .................. IEC60950-1, UL60950-1, EN60950-1
Conducted Emissions................. EN55022 ...................................... Class A
Radiated Emissions.................... EN55022 ...................................... Class A
ESD ............................................ EN61000-4-2.....................Perf. Criteria B
Radiated Immunity...................... EN61000-4-3..................... Perf. Criteria A
Fast Transient............................. EN61000-4-4.....................Perf. Criteria B
Surge .......................................... EN61000-4-5.....................Perf. Criteria B
Conducted Immunity................... EN61000-4-6.................... Perf. Criteria A
Due to advances in technology, specifications subject to change without notice
OUTPUT VOLTAGE / CURRENT RATING CHART
Model Number
DB12S1.5-12
DB12S1.8-14
DB12S2.5-20
DB12S3.3-26
DB12S5-40
DB12S12-40
DB12S15-40
DB12D12-40
DB12D15-40
DB12D3.3-5-33
DB12T3.3-12-31
DB12T3.3-15-31
DB12T5-12-40
DB12T5-15-40
DB24S1.5-12
DB24S1.8-14
DB24S2.5-20
DB24S3.3-26
DB24S5-40
DB24S12-40
DB24S15-40
DB24D12-40
DB24D15-40
DB24D3.3-5-33
DB24T3.3-12-31
DB24T3.3-15-31
DB24T5-12-40
DB24T5-15-40
DB48S1.5-12
DB48S1.8-14
DB48S2.5-20
DB48S3.3-26
DB48S5-40
DB48S12-40
DB48S15-40
DB48D12-40
DB48D15-40
DB48D3.3-5-33
DB48T3.3-12-31
DB48T3.3-15-31
DB48T5-12-40
DB48T5-15-40
Input Range
Output Voltage
1.5 VDC
Output Current
8000mA
8000mA
8000mA
8000mA
8000mA
Output
(13)
(14)
Input Current
Efficiency
Ripple & Noise
84%
50mVp-p
1250mA
50mVp-p
1538mA
82%
50mVp-p
2083mA
84%
50mVp-p
2683mA
86%
50mVp-p
4065mA
86%
Max Capacitive
Load
45000µF
37700µF
27000µF
21000µF
13600µF
2360µF
1510µF
±1200µF
±750µF
11000 / 6800µF
13000 / ±330µF
13000 / ±110µF
6800 / ±330µF
6800 / ±110µF
45000µF
37700µF
27000µF
21000µF
13600µF
2360µF
1510µF
±1200µF
±750µF
11000 / 6800µF
13000 / ±330µF
13000 / ±110µF
6800 / ±330µF
6800 / ±110µF
45000µF
37700µF
27000µF
21000µF
13600µF
2360µF
1510µF
±1200µF
±750µF
11000 / 6800µF
13000 / ±330µF
13000 / ±110µF
6800 / ±330µF
6800 / ±110µF
(15)
12VDC
(9 – 18 VDC)
1.8 VDC
2.5 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
±12 VDC
±15 VDC
3.3 / 5 VDC
3.3 / ±12 VDC
3.3 / ±15 VDC
5 / ±12 VDC
5 / ±15 VDC
1.5 VDC
3333mA
2666mA
±1800mA
±1400mA
4A / 4A (total 8A)
(12)
6000mA / ±400mA
6000mA / ±300mA
6000mA / ±400mA
6000mA / ±300mA
8000mA
8000mA
8000mA
8000mA
8000mA
75mVp-p
75mVp-p
120mVp-p
150mVp-p
100mVp-p
50 / 75mVp-p
50 / 75mVp-p
50 / 75mVp-p
50 / 75mVp-p
50mVp-p
50mVp-p
50mVp-p
50mVp-p
50mVp-p
4065mA
4015mA
4444mA
4321mA
3416mA
3063mA
3000mA
4024mA
3963mA
649mA
86%
87%
85%
85%
85%
84%
84%
86%
86%
81%
24VDC
(18 – 36 VDC)
1.8 VDC
2.5 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
±12 VDC
±15 VDC
3.3 / 5 VDC
3.3 / ±12 VDC
3.3 / ±15 VDC
5 / ±12 VDC
5 / ±15 VDC
1.5 VDC
3333mA
2666mA
±1800mA
±1400mA
4A / 4A (total 8A)
(12)
6000mA / ±400mA
6000mA / ±300mA
6000mA / ±400mA
6000mA / ±300mA
8000mA
8000mA
8000mA
8000mA
8000mA
75mVp-p
75mVp-p
120mVp-p
150mVp-p
100mVp-p
50 / 75mVp-p
50 / 75mVp-p
50 / 75mVp-p
50 / 75mVp-p
50mVp-p
50mVp-p
50mVp-p
50mVp-p
50mVp-p
759mA
1016mA
1325mA
1961mA
2048mA
1985mA
2169mA
2108mA
1689mA
1512mA
1481mA
1989mA
1958mA
321mA
375mA
508mA
655mA
969mA
1000mA
992mA
1084mA
1054mA
823mA
747mA
732mA
982mA
967mA
83%
86%
87%
89%
88%
89%
87%
87%
86%
85%
85%
87%
87%
82%
84%
86%
88%
90%
89%
89%
87%
87%
88%
86%
86%
88%
88%
48VDC
(36 – 75 VDC)
1.8 VDC
2.5 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
±12 VDC
±15 VDC
3.3 / 5 VDC
3.3 / ±12 VDC
3.3 / ±15 VDC
5 / ±12 VDC
5 / ±15 VDC
3333mA
2666mA
±1800mA
±1400mA
4A / 4A (total 8A)
(12)
6000mA / ±400mA
6000mA / ±300mA
6000mA / ±400mA
6000mA / ±300mA
75mVp-p
75mVp-p
120mVp-p
150mVp-p
100mVp-p
50 / 75mVp-p
50 / 75mVp-p
50 / 75mVp-p
50 / 75mVp-p
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
DB Series
2:1 Input Voltage Range
40 Watt DC/DC Converter
Single, Dual, and Triple Outputs
NOTES
1. For single output: Maximum output deviation is 10% inclusive of remote sense and trim. If remote sense is not being used, the
+Vsense should be connected to its corresponding +OUTPUT and likewise the -Vsense should be connected to its corresponding
–OUTPUT.
2. Dual and triple outputs require a minimum 10% loading on the output to maintain specified regulation. Operation under no-load condition
will not damage these devices, however they may not meet all listed specifications.
3. Load regulation for triple output:
Main output (V1): 10% to 100% with 10% to 100% balanced on auxiliaries.
Auxiliary outputs (V2 and V3): 10% to 100% balanced on all outputs.
4. Cross regulation for dual output: asymmetrical load 25% / 100% FL
Cross regulation for triple output:
Main output 100% load, auxiliary 100%, other auxiliary25% to 100%.
Auxiliary outputs (V2 and V3): main output 100% load, auxiliary 100%, other auxiliary 25% to 100% or main output 25% auxiliary 25%,
other auxiliary 25% to 100%.
5. The models of DBXXD3.3-5-33 are specified with 1µF ceramic output capacitors.
6. Please add an external filter at converter input terminals when measuring input reflected ripple, as in Figure 1.
L: Simulated source impedance of 12µH.
C: Nippon chemi-con KMF series, 220µF/100V
7. The ON/OFF control pin voltage is referenced to the negative input.
8. Switching frequency for dual outputs: master (5Vo) 300KHz
10. Heat sink is optional. Please call factory for ordering details.
11. An external filter capacitor is required for EMC testing. The capacitor should be capable of handing 1A ripple current for 12V/24V/48V
models. We suggest: Nippon chemi-con KMF series, 220µF/100V, ESR 90mΩ.
12. Any condition of dual output (3.3V / 5V) rated Iout current, not to exceed 8A of total output current.
13. Maximum value at nominal input voltage and full load.
14. Typical value at nominal input voltage and full load.
15. Test at minimum Vin and constant resistive load.
slave (3.3Vo) 500KHz
9. BELLCORE TR-NWT-000332. Case I: 50% Stress, Temperature at 40ºC. (Ground fixed and controlled environment).
Figure 1
DERATING CURVES & EFFICIENCY GRAPHS
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
stm32/stm8
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