Delta Electronics L48DB User Manual

FEATURES

 High efficiency: 86%@ ±12V/1.25A

 Size: 49.6mm x 39.4mm x 9.5mm

(1.95”x1.55”x0.37”)

 Industry standard pin out

 Fixed frequency operation

 Input UVLO, Output OCP, OVP, OTP

 2250V isolation

 Basic insulation

 No minimum load required

 Adjustable output voltage

 ISO 9001, TL 9000, ISO 14001, QS9000,

OHSAS18001 certified manufacturing

facility

 UL/cUL 60950-1 (US & Canada), and

TUV (EN60950-1) - pending

Delphi Series L48DB, 30W 2”x1.6” Dual Output
DC/DC Power Modules: 48V in, ±12.0V, 1.25A Output

The Delphi Series L48DB, 2”x1.6”, 48V input, positive and negative bipolar

dual output, and isolated DC/DC converters are the latest offering from a

world leader in power system and technology and manufacturing ― Delta

Electronics, Inc. This product family provides positive and negative bipolar

output (output voltage is 12V) and up to 30 watts of power in an industry

standard quarter brick package size. Both output channels can be used

independently. With creative design technology and optimization of

component placement, these converters possess outstanding electrical

and thermal performance, as well as extremely high reliability under highly

stressful operating conditions.

abnormal input/output voltage, current, and temperature conditions. The

Delphi Series converters meet all safety requirements with basic

insulation.

All models are fully protected from

OPTIONS

 Negative On/Off logic

 Short pin lengths available

APPLICATIONS

 Telecom / DataCom

 Wireless networks

 Optical network equipment

 Server and data storage
 Industrial / Test Equipment

PRELIMILARY DATABRIEF

DB_L48DB_05052008

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Delta Electronics, Inc.

SPECIFICATIONS

GENERAL SPECIFICATIONS OUTPUT SPECIFICATIONS

Input Voltage 36~75V Voltage Accuracy Typical ±1.5%
Switching Frequency Typical 330KHz Line Regulation Typical (balance load) ±0.2%
Isolation Voltage In/Out 2250V Load & Cross Regulation Typical (balance load) ±1%
Isolation Capacitance Typical 1500 pF Ripple & Noise Typical 40 mV
Isolation Resistance Minimum 10M Ohms Current Limits Typical 150%
MTBF Bellcore TBD Over Voltage Typical 133%
Size (1.95”x1.55”x0.37”) 49.6 x 39.4 x 9.5mm Voltage Trim +10%, -10%

PART NUMBERING SYSTEM

L 48 D B 120 01 P S F A

Type of

Product

L - 2”x1.6” 48 -

Input

Voltage

36~75V

Number of

Outputs

D - Dual

Output

Product

Series

B - Bipolar

Output

Output

Voltage

120 - 12V

Output

Current

01 - 1.25A N - Negative

ON/OFF

Logic

P - Positive

Pin Length Option Code

S - 0.190”
R - 0.170”

F- RoHS 6/6

(Lead Free)

Space - RoHS 5/6

A - Standard

Functions

MODEL LIST

MODEL NAME INPUT OUTPUT Efficiency @ Full Load

L48DB12001PS A 36V~75V 1.2A ± 12.0V 1.25A 86%

MECHANICAL DRAWING Open Frame Version

CONTACT: www.delta.com.tw/dcdc

USA:

Telephone:
East Coast: [phone]
West Coast: [phone]
Fax: [phone]
Email: [e-mail]

WARRANTY

Delta offers a two (2) year limited warranty. Complete warranty information is listed on our web site or is available upon request from
Delta.

Information furnished by Delta is believed to be accurate and reliable. However, no responsibility is assumed by Delta for its use, nor
for any infringements of patents or other rights of third parties, which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Delta. Delta reserves the right to revise these specifications at any time, without notice.

Europe:

Telephone: [phone]
Fax: [phone]
Email: [e-mail]

Asia & the rest of world:

Telephone: [phone] ext 6220
Fax: [phone]
Email: [e-mail]

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