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参数资料
| 型号： | PWR40XX |
| 厂商： | C |
| 英文描述： | SERIES DC/DC CONVERTER |
| 中文描述： | 系列DC / DC变换器 |
| 文件页数： | 4/4页 |
| 文件大小： | 97K |
| 代理商： | PWR40XX |
PWR40XX 5/2001 REV E
Page 4
OUTPUT POWER
The PWR40XX series was designed to meet power require-
ments 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.
TYPICAL PERFORMANCE CURVES
T
A
= +25
°
C, rated input voltage, rated output current unless otherwise noted.
APPLICATION NOTES
SHORT CIRCUIT PROTECTION
To maintain low cost, the PWR40XX 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 I
2
t will vary with input voltage.
Input Voltage
Littlefuse
Part Number
5V
12V
15V
24V
229.015
229.500
229.375
229.250
TABLE I. Recommended Fuses (or Equivalent).
Any data, prices, descriptions or specifications presented herein are subject to revision by C&D Technologies, Inc. without notice. While such information is believed to be accurate as indicated herein, C&D
Technologies, Inc. makes no warranty and hereby disclaims all warranties, express or implied, with regard to the accuracy or completeness of such information. Further, because the product(s) featured herein
may be used under conditions beyond its control, C&D Technologies, Inc. hereby disclaims all warranties, either express or implied, concerning the fitness or suitability of such product(s) for any particular use or
in any specific application or arising from any course of dealing or usage of trade. The user is solely responsible for determining the suitability of the product(s) featured herein for user’s intended purpose and in
user’s specific application. C&D Technologies, Inc. does not warrant or recommend that any of its products be used in any life support or aviation or aerospace applications.
Power Electronics Division, United States
3400 E Britannia Drive, Tucson, Arizona 85706
Phone: 800.547.2537
Fax: 520.770.9369
Power Electronics Division, Europe
C&D Technologies (Power Electronics) Ltd.
132 Shannon Industrial Estate
,
Shannon, Co. Clare, Ireland
Tel: +353.61.474.133
Fax:+353.61.474.141
C&D Technologies, (NCL)
Tanners Drive Blakelands North
Milton Keynes MK14 5BU UK
Tel: +44 (0)1908 615232
Fax: +44 (0)1908 617545
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