Delta Electronics Q48DM User Manual

r

t

FEATURES

 High efficiency: 88.5% @ 3.3V/12A &

1.2V/25A
 Size: 57.9mm×36.8mm×9.7 mm
(2.28” ×1.45” ×0.38”)

 Industry standard footprint and pinout
 Flexible current allocation on each output
 Low voltage output (O/P 2) starts up first
 Output 2 can be adjusted (trim)
 Fixed frequency operation
 Input UVLO, Output OCP, OVP, OTP
 No minimum load required
 1500V Isolation and basic insulation
 ISO 9001, TL 9000, ISO 14001, QS9000,

OHSAS18001 certified manufacturing
facility

 UL/cUL 60950-1 (US & Canada), and TUV

(EN60950-1) - pending

Delphi Series Q48DM, 75W Quarter Brick,
Dual Output DC/DC Power Modules:

3.3V/12A and 1.2V/25A

The Delphi Series Q48DM Quarter Brick, 48V input, dual output,
isolated DC/DC converters are the latest offering from a world leade
in power system and technology and manufacturing — Delta
Electronics, Inc. This product family provides up to 75 watts of dual
positive regulated outputs with a flexible combination of output current
and in a very cost effective industry standard footprint. Both outpu
channels can be used independently. There is a trim function to be
used with the second output voltage (the lower output voltage). 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 Q48DM converters meet all safety requirements with basic
insulation.

OPTIONS

 Positive On/Off logic

 Heatsink available for extended

operation

APPLICATIONS

 Telecom / DataCom
 Wireless networks
 Optical network equipment
 Server and data storage
 Industrial / Test Equipment

PRELIMINARY DATABRIEF
DB_Q48DM_02142008

1

Delta Electronics, Inc.

SPECIFICATIONS

GENERAL SPECIFICATIONS OUTPUT SPECIFICATIONS

Input Voltage
Switching Frequency Line Regulation Typical (3.3V) 350KHz Typical ±0.5%
Isolation Voltage In/Out 1500V Load Regulation Typical ±1.5%
Isolation Capacitance Typical 1500 pF Ripple & Noise Typical 50 mV
Isolation Resistance
MTBF Over Voltage Bellcore (3.3V) TBD Typical 135%
Size Voltage Trim (2.28” ×1.45” ×0.38”) 57.9 x 36.8 x 9.7 mm For Vout2 ±10%

36~75V Voltage Accuracy Typical ±1.5%

Minimum 10M Ohms Current Limits Typical 140%

PART NUMBERING SYSTEM

Q 48 D M 3R3 12 N N F A

Product

Type

Q - Quarter

Brick

Input

Voltage

48V D - Dual Output M - 75W

Number of

Outputs

Product

Series

Platform

Output

Voltage 1

3R3 - 3.3V 12 - 1.2V N - Negative N - 0.150” A - Standard

Output ON/OFF

Voltage 2

Logic

Pin

Length

R - 0.170” P - Positive

Option Code

F - RoHS 6/6
(Lead Free)

Functions

MODEL LIST

MODEL NAME INPUT

Q48DM3R312NN A 36V~75V 2.4A 3.3V/12A 1.2V/25A 88.5%

* Note: Total output power should not exceed 75 watts and maximum output current for high output is 12A, for low output is 25A.

OUTPUT

*

EFF @ Full Load

MECHANICAL DRAWING

CONTACT: www.delta.com.tw/dcdc

USA: Europe: Asia & the rest of world:

Telephone: Telephone: [phone] Telephone: [phone] ext 6220
East Coast: [phone] Fax: [phone] Fax: [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. H owever, no responsibility is assumed b y 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.

Email:

[e-mail]

Email:

[e-mail]

2