Delta Electronics Delphi Q48SX User manual

Delta Electronics, Inc.

FEATURES

 High efficiency: 90.5% @ 3.3V/35A

 Industry standard quarter brick footprint

 Size: 57.9x36.8x9.5mm(2.28”x1.45”x0.37”)

(w/o heatspreader)

57.9x36.8x12.7mm(2.28”x1.45”x0.50”)

(with heatspreader)

 Fixed frequency operation

 Input UVLO, Output OTP, OCP, OVP

 Output voltage trim +10%, -20%

 Monotonic startup into normal and pre-biased

loads

 Outstanding dynamic response:

30mV for 25% load step

 Very low output ripple

 No minimum load required

 Basic insulation

 Frequency synchronization from external

signal

 ISO 9001, TL 9000, ISO 14001, QS 9000,

OHSAS 18001 certified manufacturing facility

 UL/cUL 60950 (US & Canada), TUV

(EN60950) and CE mark pending

DATABRIEF

DB_Q48SX_10272005

APPLICATIONS

 Telecom/Datacom

 Wireless Networks

 Optical Network Equipment

 Server and Data Storage

 Industrial/Test Equipment

 Medical Systems

OPTIONS

 Surface mount version

 Positive on/off logic

Delphi Series Q48SX, 35A Quarter Brick

DC/DC Power Modules: 48V in, 3.3V and 5.0V out

The Delphi Series Q48SX (XENATM 100), Quarter Brick, 48V input,

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

world leader in power systems technology and manufacturing ―Delta

Electronics, Inc. The Q48SX product family provides up to 125 watts of

power or 35A of output current in an industry standard quarter brick

footprint and pinout. The open frame construction is optimized for

convection cooling over a wide operational ambient temperature range.

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. The output trim pin also serves as a

synchronization function that can greatly reduce output ripple/noise

when multiple Q48SX modules are used and linked together. This is a

big boost to those applications that are extremely noise sensitive. All

Q48SX models are fully protected from abnormal input/output voltage,

current, and temperature conditions. The Delphi Series converters meet

all safety requirements with basic insulation.

SPECIFICATIONS

GENERAL SPECIFICATIONS OUTPUT SPECIFICATIONS

Input Voltage 36~75V

Voltage Accuracy Typical (3.3V) ±1%

Switching Frequency Typical (3.3V) 300KHz Line Regulation Typical (3.3V) ±0.05%

Isolation Voltage In/Out 1500 Vdc

Load Regulation Typical (3.3V) ±0.05%

MTBF Bellcore (3.3V) 1.9M hours Ripple & Noise Typical (3.3V) 18 mV

OTP Typical 110°C Current Limits Typical (3.3V) 110%

Size (w/o heatspreader) (2.28”x1.45”x0.37”) 57.9x36.8x9.5mm Voltage Trim +10%, -20%

Size (with heatspreader) (2.28”x1.45”x0.50”) 57.9x36.8x12.7mm

PART NUMBERING SYSTEM

Q 48 S X 3R3 35 N R A

Type of

Product Input

Voltage Number of

Outputs Product

Series Output

Voltage Output

Current ON/OFF

Logic Pin

Length/type Option Code

Q – Quarter

Brick

48V S - Single X – Xena 3R3 – 3.3V

050 – 5.0V

25 – 25A

35 – 35A

N – Negative

P – Positive

R – 0.170”

N – 0.145”

K – 0.110”

M - SMD

Space-RoHS 5/6

F- RoHS 6/6

(Lead Free)

A – Standard

H - Heatspreader

MODEL LIST

MODEL NAME INPUT OUTPUT EFF @ 100% LOAD

Q48SX3R335NR A 36V~75V 4.2A 3.3V 35A 90.5%

Q48SX05025NR A 36V~75V 4.5A 5.0V 25A 91.0%

MECHANICAL DRAWING

CONTACT: www.delta.com.tw/dcdc

USA:

Telephone:

East Coast: (888) 335 8201

West Coast: (888) 335 8208

Fax: (978) 656 3964

Email: [email protected]m

Europe:

Phone: +41 31 998 53 11

Fax: +41 31 998 53 53

Email: [email protected]

Asia & the rest of world:

Telephone: +886 3 4526107 ext 6220

Fax: +886 3 4513485

Email: [email protected]

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