DB48T3.3-12-31 Wall Industries, DB48T3.3-12-31 Datasheet

DB48T3.3-12-31

Manufacturer Part Number

DB48T3.3-12-31

Description

2:1 Input Voltage Range 40 Watt Dc/dc Converter Single, Dual, and Triple Outputs

Manufacturer

Wall Industries

Datasheet

1.DB48T3.3-12-31.pdf (4 pages)

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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

SPECIFICATIONS: DB Series

All specifications apply @ 25°C ambient unless otherwise noted

INPUT SPECIFICATIONS

Input Voltage Range ............ 12V nominal input .......................... 9-18VDC

Under Voltage Lockout

Input Filter .................................................................................... L-C Type

Input Voltage Variation......... dv/dt ............................................ 5V/ms max

Input Surge Voltage (100ms max) ............... 12V input ...................36VDC

Input Reflected Ripple Current (See Note 6) ................................40mAp-p

Start Up Time (nominal Vin and constant resistive load)

Remote ON/OFF (See Note 7)

Remote Off Input Current (nominal Vin) ...........................................2.5mA

OUTPUT SPECIFICATIONS

Output Voltage ..............................................................................see table

Voltage Accuracy (nom Vin and full load) .........Single & Dual............. ±1%

Voltage Adjustability (See Note 1) ..................................................... ±10%

Output Current ..............................................................................see table

Output Power ........................................................................ 40 watts max.

Line Regulation (LL to HL at FL).................. Single & Dual.............. ±0.5%

Load Regulation (See Note 3) ..................... Single......................... ±0.5%

Load Cross Regulation (See Note 4) ....... Triple (main) ...................... ±1%

(nominal Vin and full load)

(Single & Dual Outputs only-not including Dual positive & triple)

(10% to 100% FL)

12V nominal input........... DC-DC ON ...........................................9VDC

24V nominal input........... DC-DC ON ......................................17.8VDC

48V nominal input........... DC-DC ON .........................................36VDC

Power Up................................................................................25ms typ.

Remote ON/OFF ....................................................................25ms typ.

DC-DC ON .....................................................Open or 3.5V < Vr < 12V

DC-DC OFF......................................................Short or 0V < Vr < 1.2V

24V nominal input ........................ 18-36VDC

48V nominal input ........................ 36-75VDC

DC-DC OFF .........................................8VDC

DC-DC OFF .......................................16VDC

DC-DC OFF .......................................34VDC

(Complies with ETS300 132 part 4.4)

Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833

Dual/Triple (auxiliary)......... ±5%

603-778-2300 www.wallindustries.com Fax 603-778-9797

24V input ...................50VDC

48V input .................100VDC

Triple (main) .................. ±1%

Triple (auxiliary) ............. ±5%

Dual ............................... ±1%

Triple (main) .................. ±2%

Triple (main) .............. ±1%

(auxiliary) ............. ±5%

(auxiliary) ......... ±5%

OUTPUT SPECIFICATIONS (CONTINUED)

Minimum Load (See Note 2)........... Single & Dual Positive..................... 0%

Ripple/Noise (See Note 5)..............................................................see table

Transient Response Recovery Time ...................................................250us

PROTECTION SPECIFICATIONS

Over Voltage Protection ................................... 1.5V Output................. 3.9V

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

Isolation Capacitance ............................................................. 1000pF max.

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)

Thermal Shock .................................................................... MIL-STD-810D

Vibration ................................10~55Hz, 10G, 30 minutes along X, Y, and Z

MTBF (See Note 9) .............................................................. 1.398 x 10

(25% load step change)

(Zener diode clamp)

Natural Convection ............................................................ 9.2°C / Watt

Heat-Sink with 20LFM ......................................................... 7.6°C/Watt

Heat-Sink with 500LFM ....................................................... 2.8°C/Watt

UL E155800

TUV

CE MARK

(20MHz -Measured with a 104pF/50V MLCC)

Dual & Triple ........................ 10% of FL

Single, Dual, and Triple Outputs

40 Watt DC/DC Converter

2:1 Input Voltage Range

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

DB Series

ohms min.

hrs

Related parts for DB48T3.3-12-31

DB48T3.3-12-31 Summary of contents

Page 1

... Load Regulation (See Note 3) ..................... Single......................... ±0.5% (10% to 100% FL) Load Cross Regulation (See Note 4) ....... Triple (main) ...................... ±1% Dual/Triple (auxiliary)......... ±5% Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 OUTPUT SPECIFICATIONS (CONTINUED) Minimum Load (See Note 2)........... Single & Dual Positive..................... 0% Ripple/Noise (See Note 5)..............................................................see table Transient Response Recovery Time ...

Page 2

... DB48S15-40 ±12 VDC DB48D12-40 (36 – 75 VDC) ±15 VDC DB48D15-40 3 VDC DB48D3.3-5-33 3.3 / ±12 VDC DB48T3.3-12-31 DB48T3.3-15-31 3.3 / ±15 VDC 5 / ±12 VDC DB48T5-12-40 DB48T5-15- ±15 VDC Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 SAFETY & EMC Approvals and Standards .................. IEC60950-1, UL60950-1, EN60950-1 Conducted Emissions ...

Page 3

... Typical value at nominal input voltage and full load. 15. Test at minimum Vin and constant resistive load. DERATING CURVES & EFFICIENCY GRAPHS Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 C: Nippon chemi-con KMF series, 220µF/100V slave (3.3Vo) 500KHz 603-778-2300 www.wallindustries.com Fax 603-778-9797 ...

Page 4

... NC No Pin 5 -Sense +Output (Note 1) 6 +Sense Com (Note 1) 7 +Output Com 8 -Output -Output 9 Trim Trim Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 DUAL POSITIVE TRIPLE +Input +Input -Input -Input CTRL CTRL 3.3V +AUX 3.3V RTN (Com) Com NC -AUX NC +Output 5V -Output (Com) ...

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