PWR4000C Ver la hoja de datos (PDF) - Murata Power Solutions
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PWR4000C Datasheet PDF : 4 Pages
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TYPICAL PERFORMANCE CURVES
T = +25°C, rated input voltage, rated output current unless otherwise noted.
A
APPLICATION NOTES
SHORT CIRCUIT PROTECTION
To maintain low cost, the PWR40xxC Series provides limited short-
circuit protection. To protect against continuous short circuits, a fuse is
required. It is recommended that the fuse be placed in series with the
input of the converter. The required I2 t will vary with input voltage.
Input Voltage
5V
12V
15V
24V
Littlefuse© Part Number
229.015
229.500
229.375
229.250
TABLE I. Recommended Fuses (or Equivalent)
OUTPUT POWER
The PWR40xxC series was designed to meet power requirements up
to 4W. Due to the nature of unregulated power supplies, a higher-than-
rated output voltage will result when less-than-rated power is used
(see Typical Performance Curves). This series has been designed to
run from no load to 4W without derating up to +70°C.
UNBALANCED LOADS
Unbalanced loads may be used on dual output models with each side
sourcing up to 200mA as long as the total power out is not more than
4W. With an unbalanced load, the output voltages will track within
5% of each other.
OUTPUT NOISE
The output noise can be reduced to less than 50mVp-p by adding a
low ESR 10μf tantalum capacitor across each output.
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
www.murata-ps.com email: sales@murata-ps.com ISO 9001 & ISO 14001 REGISTERED
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
notice.
© 2009 Murata Power Solutions, Inc.
USA:
Mansfield (MA), Tel: (508) 339 3000, email: sales@murata-ps.com
Canada: Toronto, Tel: (866) 740 1232, email: toronto@murata-ps.com
UK:
Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com
France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com
Germany: München, Tel: +49 (0)89-544334-0, email: ped.munich@murata-ps.com
Japan: Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com
Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com
China:
Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com
Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com
Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com
Page 4
TDC_PWR40_A02 04/2007
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