Delta Electronics Delphi Series L48DB User manual

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. All models are fully protected from
abnormal input/output voltage, current, and temperature conditions. The
Delphi Series converters meet all safety requirements with basic
insulation.
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
OPTIONS
Negative On/Off logic
Short pin lengths available
APPLICATIONS
Telecom / DataCom
Wireless networks
Optical network equipment
Server and data storage
Industrial / Test Equipment
1
PRELIMILARY DATABRIEF
DB_L48DB_05052008
Delta Electronics, Inc.

2
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 Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Length Option Code
L - 2”x1.6” 48 -
36~75V
D - Dual
Output
B - Bipolar
Output
120 - 12V 01 - 1.25A N - Negative
P - Positive
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: [email protected]
Europe:
Telephone: [phone]
Fax: [phone]
Email: [e-mail]
Asia & the rest of world:
Telephone: [phone] ext 6220
Fax: [phone]
Email: [email protected]
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.