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
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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: [phone]
West Coast: [phone]
Fax: [phone]
Email: [email protected]m
Europe:
Phone: [phone]
Fax: [phone]
Email: [email protected]
Asia & the rest of world:
Telephone: [phone] ext 6220
Fax: [phone]
Email: [email protected]
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