2010 Bel Fuse Inc. Specifications subject to change without notice. 091110
18
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
Bel Fuse Ltd.
Bel Fuse Europe Ltd.
206 Van Vorst Street
8F/ 8 Luk Hop Street
Preston Technology Management Centre
Jersey City, NJ 07302
San Po Kong
Marsh Lane, Suite G7, Preston
Tel
201-432-0463
Kowloon, Hong Kong
Lancashire, PR1 8UD, U.K.
Fax 201-432-9542
Tel 852-2328-5515
Tel 44-1772-556601
www.belfuse.com
Fax 852-2352-3706
Fax 44-1772-888366
www.belfuse.com
ISOLATED DC/DC CONVERTERS
24 Vdc Input
12 Vdc /20 A Output
Sep. 11, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Revision History
Date
Revision
Changes Detail
Approval
2008-07-22
PA
First release
XQ Han
2009-04-03
PB
Update mechanical drawing
XQ Han
2009-10-29
PC
Update input current, no load input current, remoted off input current,
Input reflected ripple current, turn on voltage threshold, turn off voltage
threshold, line regulation, output ripple and noise, output DC current
limit, turn on time, transient response, efficiency, efficiency curve,
switching frequency, over voltage protection and weight
XF Jiang
2010-09-11
D
1. Change fixed frequency from 500kHZ to 307kHZ.
2. Change max value of remote on/off from 12V to 18V; Add input
transient voltage in absolute maximum ratings.
3. Update no load input current, remote off input current, input
reflected ripple current in input specifications.
4. Change typical value of pipple and noice(pk-pk) from 80mV to
100mV; Update load regulation, line regulation, regulation over
ambient temperature, turn on time, short circuit surge transient and
transient response; Add rise time, output DC current limit, ripple and
noise(pk-pk) under worse case in output specifications.
5. Change min value of efficiency from 93% to 94%; Update switching
frequency, over temperature protection, over voltage protection,
isolation capacitance and FIT; Add input to case isolation voltage,
output to case isolation voltage and isolation resistance in general
specifications.
6. Update TD, NR, TR, efficiency data and output trim equations; Add
startup&shutdown, remote on/off, remote sense, OCP, OVP, OTP,
UVLO, fundamental circuit diagram, safety&EMC and layout.
XF Jiang
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.