Delta Electronics Q48SB User manual

OPTIONS
 Positive On/Off logic
 Heatsink available for extended
operation
 OTP and OCP mode (Auto restart
or latch)
PRELIMINRY DATABRIEF
DB_Q48SB12020NVFA_08312007
Delphi Series Q48SB, 240W Bus Converter
DC/DC Power Modules: 48V in, 12V/20A out
The Delphi Series Q48SB, 48V input, single output, vertically
mounted quarter brick, 240W bus converter is the latest offering from
a world leader in power systems technology and manufacturing —
Delta Electronics, Inc. This product family supports intermediate bus
architectures and powers multiple downstream non-isolated point-of-
load (POL) converters and devices. The Delphi Series Q48SB
operates from a nominal 48V input and provides up to 240W of
power or 20A of output current in an industry standard vertically
mounted quarter brick footprint. Typical efficiency for the 12V/20A
module is 96%. With optimized component placement, creative
design topology, and numerous patented technologies, the Q48SB
bus converter delivers outstanding electrical and thermal
performance. An optional heatsink is available for harsh thermal
requirements.
FEATURES
 Input voltage range: 38V~55V
 High efficiency: 96.0% @ 12V/20A
 Size: 63.5mm x 31.8mm x 11.4mm
(2.50” x 1.25” x 0.45”)
 Industry standard pinout
 Fully protected: Input UVLO, OVP, Output
OCP and OTP
 Parallelable for higher output power
 2250V isolation
 Basic insulation
 Monotonic startup
 No minimum load required
 ISO 9001, TL 9000, ISO 14001, QS 9000,
OHSAS 18001 certified manufacturing
facility
 UL/cUL 60950 (US & Canada), and TUV
(EN60950) - pending
 CE mark meets 73/23/EEC and 93/68/EEC
- pending
1
APPLICATIONS
 Datacom / Networking
 Wireless Networks
 Optical Network Equipment
 Server and Data Storage
 Industrial/Testing Equipment

2
SPECIFICATIONS
GENERAL SPECIFICATIONS
OUTPUT SPECIFICATIONS
Input Voltage 38~55V
V
olta
g
e Set Point T
yp
ical 11.85
Switching Frequency Typical 200KHz Load Re
g
ulation T
yp
ical 370mV
Isolation Voltage In/Out 2250V Total Out
p
ut Ran
g
e8.8V~13.7V
Isolation Capacitance Typical 1000pF Ri
pp
le & Noise T
yp
ical 80 mV
Isolation Resistance Minimum 10M ohm OCP T
yp
ical 130% of load
Size 2.50” x 1.25” x 0.45” 63.5 x 31.8 x 11.4mm OTP T
yp
ical 118°C
PART NUMBERING SYSTEM
Q 48 S B 120 20 N V F A
Type of
Product Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Length Option Code
Q - Quarter
Brick
38V~55V S - Single B - Bus
Converter 120 - 12V
20 - 20A N- Negative
V-Vertical F- RoHS 6/6
(Lead Free)
A - Standard Functions
MODEL LIST
MODEL NAME INPUT OUTPUT EFF @ 100% LOAD
Q48SB12020NVFA 38V~55V 6A 12V 20A 96%
MECHANICAL DRAWING
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] x 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.