Delta Electronics Delphi Q48DM User manual

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.

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

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 1Delta Electronics, Inc.

DB_Q48DM_02142008

SPECIFICATIONS

GENERAL SPECIFICATIONS OUTPUT SPECIFICATIONS

Input Voltage

36~75V Voltage Accuracy Typical ±1.5%

Switching Frequency Line RegulationTypical (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 Minimum 10M Ohms Current Limits Typical 140%

MTBF Over VoltageBellcore (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%

PART NUMBERING SYSTEM

Q 48 D M 3R3 12 N N F A

Product

Type Input

Voltage Number of

Outputs Product

Series Output

Voltage 1 Output ON/OFF

Logic Pin

Length Option Code

Voltage 2

Q - Quarter

Brick 48V D - Dual Output M - 75W

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

Functions

F - RoHS 6/6

R - 0.170”P - Positive (Lead Free)

MODEL LIST OUTPUT *

MODEL NAME INPUT EFF @ Full Load

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.

MECHANICAL DRAWING

CONTACT: www.delta.com.tw/dcdc

USA: Europe: Asia & the rest of world:

Telephone: Telephone: +41 31 998 53 11 Telephone: +886 3 4526107 ext 6220

East Coast: (888) 335 8201 Fax: +41 31 998 53 53 Fax: +886 3 4513485

West Coast: (888) 335 8208

Fax: (978) 656 3964

Email: [email protected]

Email: DCDC@delta-es.tw

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.

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