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

APPLICATIONS

 Datacom / Networking

 Wireless Networks

 Optical Network Equipment

 Server and Data Storage

 Industrial/Testing Equipment

SPECIFICATIONS

GENERAL SPECIFICATIONS

OUTPUT SPECIFICATIONS

Input Voltage 38~55V

olta

e Set Point T

ical 11.85

Switching Frequency Typical 200KHz Load Re

ulation T

ical 370mV

Isolation Voltage In/Out 2250V Total Out

ut Ran

e8.8V~13.7V

Isolation Capacitance Typical 1000pF Ri

le & Noise T

ical 80 mV

Isolation Resistance Minimum 10M ohm OCP T

ical 130% of load

Size 2.50” x 1.25” x 0.45” 63.5 x 31.8 x 11.4mm OTP T

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: (888) 335 8201

West Coast: (888) 335 8208

Fax: (978) 656 3964

Email: [email protected]

Europe:

Telephone: +41 31 998 53 11

Fax: +41 31 998 53 53

Email: DCDC@delta-es.tw

Asia & the rest of world:

Telephone: +886 3 4526107 x 6220

Fax: +886 3 4513485

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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