NPX20S C&D Technologies., NPX20S Datasheet

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NPX20S

Manufacturer Part Number
NPX20S
Description
Isolated 20w Single Output Dc/dc Converters
Manufacturer
C&D Technologies.
Datasheet
1.NPX20S.pdf (8 pages)
FEATURES
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DESCRIPTION
The NPX20 series of open frame DC/DC con-
verters is available in three industry standard
footprints, two surface mount land patterns and
a through hole DIP footprint. Planar magnetic
and synchronous-rectifier design offer effi-
ciencies from 76% at 1.8V. The series offers
features including no load operation, input
undervoltage shutdown, over current protection,
short-circuit protection, and thermal shutdown.
Standard variants include output voltage adjust-
ment and remote on/off control. The product
has been recognized by Underwriters Laboratory
(UL) to UL 60950 for basic insulation, file number
E179522 applies.
www.murata-ps.com
RoHS compliant
Under voltage lock out
Synchronous rectifier technology
Full 6 Amp output current
Remote on/off & output trim
Minimum 76% efficiency at 1.8V
Over voltage, current & temperature
Operation to zero load
UL 60950 recognised
protection
www.murata-ps.com/rohs
For full details go to
　
1. A four pin version D4C is also available, please refer to mechanical dimensions, package style 3.
2. A minimum load of 5% may be required to meet ripple and noise speculation with +V
3. A 33µF low ESR capacitor, specified as C3 in the recommended EMC filter on page 2, must be connected to the input of the NPX20 to
ensure that the part is supplied by a low impedance source.
SELECTION GUIDE
Order Code
NPX20S24018DC
NPX20S24018MC
NPX20S24018PMC
NPX20S24025DC
NPX20S24025MC
NPX20S24025PMC
NPX20S24033DC
NPX20S24033MC
NPX20S24033PMC
NPX20S48018DC
NPX20S48018MC
NPX20S48018PMC
NPX20S48025DC
NPX20S48025MC
NPX20S48025PMC
NPX20S48033DC
NPX20S48033MC
NPX20S48033PMC
INPUT CHARACTERISTICS
Parameter
Voltage range
Under voltage lock out
Input standby current
Power consumption
Reflected ripple current
OUTPUT CHARACTERISTICS
Parameter
Voltage set point error
Overall voltage envelope
Line regulation
Load regulation
Ripple & noise
Voltage trim range
Transient response
Start delay
Overcurrent protection
Overvoltage protection
All specifications typical at T
3
2
1
1
1
1
1
1
A
=25°C, nominal input voltage and rated output current unless otherwise specified.
Input Voltage
Conditions
Continuous operation 24V I/P types
Continuous operation 48V I/P types
Turn On Threshold NPX20S24XXXC
Turn Off Threshold NPX20S24XXXC
Turn On Threshold NPX20S48XXXC
Turn Off Threshold NPX20S48XXXC
Zero load
For measurement method see page 3
Conditions
Substrate temperature -40°C to +85°C
BW = 0 to 20MHz with 1µF ceramic
& 10µF tantalum capacitors
NPX20SXX018
All other types
Peak deviation (50-100% & 100-50% swing)
Settling time (within 1% V
From remote on/off NPX20S24XXXC
From remote on/off NPX20S48XXXC
From application of V
From application of V
Nom.
24
24
24
24
24
24
24
24
24
48
48
48
48
48
48
48
48
48
V
Isolated 20W Single Output DC/DC Converters
Voltage
Output
Technical enquiries - email: mk@murata-ps.com, tel:
1.8
1.8
1.8
2.5
2.5
2.5
3.3
3.3
3.3
1.8
1.8
1.8
2.5
2.5
2.5
3.3
3.3
3.3
IN
IN
V
NPX20S24XXXC
NPX20S48XXXC
OUT NOM
)
Current
Output
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
A
IN
Output Power
<24V.
NPX20 Series
-10.0
Min.
Min.
-2.0
-3.0
-5.0
18
36
16
11
30
25
Max.
10.8
10.8
10.8
15.0
15.0
15.0
19.8
19.8
19.8
10.8
10.8
10.8
15.0
15.0
15.0
19.8
19.8
19.8
W
KDC_NPX20C.G03 Page 1 of 8
Typ.
Typ.
600
300
800
110
1.4
2.0
5.0
5.0
24
48
17
16
32
32
40
10
Efficiency
Min.
+44 (0)1908 615232
76
76
76
80
80
80
83
84
84
78
78
78
81
81
81
84
84
84
%
+10.0
+10.0
Max.
Max.
+2.0
+3.0
16.5
34.5
20.0
100
140
1.0
5.0
36
75
18
35
Package
mA p-p
mV p-p
Style
%V
%V
%V
%V
%V
Units
Units
%I
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
mA
mV
mV
ms
µs
W
V
V
OUT
OUT
OUT
OUT
OUT
OUT

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NPX20S Summary of contents

Page 1

... Continuous operation 24V I/P types Voltage range 3 Continuous operation 48V I/P types Turn On Threshold NPX20S24XXXC Turn Off Threshold NPX20S24XXXC Under voltage lock out Turn On Threshold NPX20S48XXXC Turn Off Threshold NPX20S48XXXC Input standby current Power consumption Zero load Reflected ripple current For measurement method see page 3 ...

Page 2

... A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” The NPX20S series has been recognized by Underwriters Laboratory to UL 60950 Basic Insulation class, and may be used as part of safety isolation scheme, provided that the out- put is maintained within SELV limits and the input is connected to a TNV or SELV supply. The isolation test voltage represents a measure of immunity to transient voltages. The part can be expected to function with several hundred volts offset applied continuously across the isolation barrier ...

Page 3

... For further information, please visit www.murata-ps.com/rohs NPX20 Series Isolated 20W Single Output DC/DC Converters 1.8 2.5 5100 5100 2000 2000 1.224 1.224 0.576 1.276 + OUT R DOWN NPX20S TRIM - V OUT = 48V IN Technical enquiries - email: mk@murata-ps.com, tel: KDC_NPX20C.G03 Page 3.3 5100 2000 1.224 2.076 +44 (0)1908 615232 ...

Page 4

... CHARACTERISITCS CURVES – NPX20S24018 EFFICIENCY VS OUTPUT CURRENT TYPICAL TRANSIENT RESPONSE CHARACTERISITCS CURVES – NPX20S24025 EFFICIENCY VS OUTPUT CURRENT TYPICAL TRANSIENT RESPONSE www.murata-ps.com Isolated 20W Single Output DC/DC Converters OUTPUT RIPPLE & NOISE THERMAL DERATING Output load change: 50-100% & 100-50% OUTPUT RIPPLE & NOISE ...

Page 5

... CHARACTERISITCS CURVES – NPX20S24033 EFFICIENCY VS OUTPUT CURRENT TYPICAL TRANSIENT RESPONSE CHARACTERISITCS CURVES – NPX20S48018 EFFICIENCY VS OUTPUT CURRENT TYPICAL TRANSIENT RESPONSE www.murata-ps.com Isolated 20W Single Output DC/DC Converters OUTPUT RIPPLE & NOISE THERMAL DERATING Output load change: 50-100% & 100-50% OUTPUT RIPPLE & NOISE ...

Page 6

... CHARACTERISITCS CURVES – NPX20S48025 EFFICIENCY VS OUTPUT CURRENT TYPICAL TRANSIENT RESPONSE CHARACTERISITCS CURVES – NPX20S48033 EFFICIENCY VS OUTPUT CURRENT TYPICAL TRANSIENT RESPONSE www.murata-ps.com Isolated 20W Single Output DC/DC Converters OUTPUT RIPPLE & NOISE THERMAL DERATING Output load change: 50-100% & 100-50% OUTPUT RIPPLE & NOISE ...

Page 7

MECHANICAL DIMENSIONS SURFACE MOUNT “M” PACKAGE STYLE 1 (BOTTOM VIEW) 0.197 (5.00) 0.197 (5.00) 0.220 (5.59) 0.637 (16.18 1.010 0.910 (25.65) (23.11 0.220 (5.59) 0.197 (5.00) 2.015 (51.18) 0.334 (8.50) Weight 14.2g SURFACE MOUNT “PM” ...

Page 8

MECHANICAL DIMENSTIONS (continued) THROUGH HOLE PACKAGE STYLE 3 (BOTTOM VIEW) 0.2 (5.08) 1.004 (25.65) Weight: 13.9g All pins on a 0.1 (2.54) pitch and within ±0.01 (0.25) of true position. Unless otherwise stated all dimensions are in inches (mm) ±0.01 ...

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