NPX20S24033DC [MURATA]
DC-DC Regulated Power Supply Module, 1 Output, 19.8W, Hybrid, ROHS COMPLIANT PACKAGE-6;
| 型号： | NPX20S24033DC |
| 厂家： | 
muRata |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, 19.8W, Hybrid, ROHS COMPLIANT PACKAGE-6 |
| 文件： | 总8页 (文件大小：594K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NPX20 Series
s
20W Single Output DC/DC Converters
ION GUIDE
Output Power Efficiency
Input Voltage
(Nom.)
Output Output
Voltage Current
Recommended
Alternatives
(click for data sheet)
Package
Style
Max.
W
Min.
%
Order Code
V
V
A
NPX20S24018DC1
NPX20S24018MC
NPX20S24018PMC
NPX20S24025DC1
NPX20S24025MC
NPX20S24025PMC
NPX20S24033DC1
NPX20S24033MC
NPX20S24033PMC
NPX20S48018DC1
NPX20S48018MC
NPX20S48018PMC
NPX20S48025DC1
NPX20S48025MC
NPX20S48025PMC
NPX20S48033DC1
NPX20S48033MC
NPX20S48033PMC
24
24
24
24
24
24
24
24
24
48
48
48
48
48
48
48
48
48
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
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
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
76
76
76
80
80
80
83
84
84
78
78
78
81
81
81
84
84
84
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
UWR-1-8/6000-D24ACT-C
UWR-2-5/6000-D24ACT-C
NPH25S2403EIC
FEATURES
ꢀRoHS compliant
UWR-1-8/6000-D48ACT-C
UWR-2-5/6000-D48ACT-C
NPH25S4803EIC
ꢀ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
protection
INPUT CHARACTERISTICS
Parameter
Conditions
Min.
18
Typ.
24
Max.
36
Units
V
ꢀOperation to zero load
ꢀUL 60950 recognised
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
Voltage range3
36
48
75
16
17
18
11
16
16.5
35
DESCRIPTION
Under voltage lock out
V
30
32
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.
25
32
34.5
Input standby current
Power consumption
Reflected ripple current
1.4
mA
W
Zero load
1.0
For measurement method see page 3
40
mA p-p
OUTPUT CHARACTERISTICS
Parameter
Voltage set point error
Overall voltage envelope
Line regulation
Conditions
Min.
-2.0
-3.0
Typ.
Max.
+2.0
+3.0
5.0
Units
%VOUT
%VOUT
mV
Substrate temperature -40°C to +85°C
2.0
Load regulation
20.0
mV
BW = 0 to 20MHz with 1μF ceramic
& 10μF tantalum capacitors
Ripple & noise2
100
mV p-p
%VOUT
NPX20SXX018
All other types
-5.0
+10.0
+10.0
Voltage trim range
Transient response
-10.0
Peak deviation (50-100% & 100-50% swing)
Settling time (within 1% VOUT NOM)
10
600
5.0
%VOUT
μs
From remote on/off NPX20S24XXXC
From remote on/off NPX20S48XXXC
From application of VIN NPX20S24XXXC
From application of VIN NPX20S48XXXC
5.0
Start delay
ms
300
800
110
Overcurrent protection
Overvoltage protection
%IOUT
140
%VOUT
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 +VIN <24V.
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.
For full details go to
www.murata-ps.com/rohs
All specifications typical at T
A
=25°C, nominal input voltage and rated output current unless otherwise specified.
www.murata-ps.com
Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232
2010/02/08 KDC_NPX20C.I01 Page 1 of 8
NPX20 Series
Isolated 20W Single Output DC/DC Converters
GENERAL CHARACTERISTICS
Parameter
Switching frequency
Conditions
Min.
Typ.
350
Max.
0.5
Units
kHz
Module on (open collector input)
Module off
Remote on/off
MTTF
V
-1.0
mA
kHrs
MIL HDBK 217F
487000
ABSOLUTE MAXIMUM RATINGS
Input voltage, 24V input types1
Input voltage, 48V input types1
Output voltage
40V
80V
-0.5V / +VOUT
-0.5V / +VOUT
0.5V
Output trim control
Remote On/Off
ISOLATION CHARACTERISTICS
Parameter
Isolation test voltage
Resistance
Conditions
Flash tested for 1 second
VISO = 500VDC
Min.
1500
1
Typ.
Max.
Units
VDC
GΩ
pF
Capacitance
65
ENVIRONMENTAL CHARACTERISTICS
Parameter
Conditions
Min.
-40
Typ.
Max.
85
Units
°C
Substrate temperature
Storage
Full load
Absolute Max. internal temperature
Operates at substrate temperature
-40
125
°C
Thermal protection
100
°C
EMC FILTERING AND SPECTRA
EMC FILTER AND VALUES
$ꢁ
$ꢁ
%$
$ꢂ
$ꢀ
%$
$ꢁ
$ꢁ
C1 4.7μF 100V Polyester capacitor
C2 4.7nF 250 VAC Y rated
C3 33μF ESR <0.7 Ω 100V Electrolytic capacitor
Recommended EMC filter should reduce conducted emissions below EN 55022 curve B Quasi-peak average limit.
TECHNICAL NOTES
ISOLATION VOLTAGE
‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage,
applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
Murata Power Solutions NPX20 series of dc/dc converters are all 100% production tested at their stated isolation voltage. This is 1500V DC for 1 second.
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; but then the circuitry on both sides of the barrier must be regarded
as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user accessible circuitry according to safety standard
requriements.
REPEATED HIGH-VOLTAGE ISOLATION TESTING
It is well known that repeated high-voltage testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials, construc-
tion and environment. While manufactured parts can withstand several times the stated test voltage, any material is susceptible to eventual degradation when subjected to very
high applied voltages, thus implying that the number of tests should be strictly limited. We therefore strongly advise against repeated high voltage testing, but if it is absolutely
requried, that the voltage be reduced by 20% from the specified test voltage.
1. Absolute maximum value for 30 seconds. Prolonged operation may damage the product.
www.murata-ps.com
Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232
2010/02/08 KDC_NPX20C.I01 Page 2 of 8
NPX20 Series
Isolated 20W Single Output DC/DC Converters
APPLICATION NOTES
OUTPUT VOLTAGE ADJUSTMENT
The trim resistor equations are:
Where:
VNOM
G
1.8
2.5
3.3
51
2000
1.224
.6
5100
2000
1.224
1.276
5100
2000
1.224
2.076
R
R
DOWN
=
=
(VOUT - L) x G - H
VNOM - VOUT
H
UP
G x L
- H
L
VOUT - L - K
K
TRIM UP
TRIM DOWN
+VIN
+VOUT
+VIN
+VOUT
RDOWN
TRIM
NPX20S
NPX20S
TRIM
RUP
-VOUT
-VOUT
When the output voltage is trimmed up, output current must be derated so that the maximum output power (shown in the selection table) is not exceeded.
INPUT REFLECTED RIPPLE CURRENT
Input reflected ripple current is measured with the following components connected to the power supply and across the input of the NPX20 DC/DC converter.
A 33μF low ESR (<0.7Ω) capacitor is connected across the input of the NPX. A large bulk capacitor 220μF (<100mΩ) is connected across the power supply,
followed by a series filter inductor of 12μH measured using current probe, scale 1mV/mA.
TYPICAL INPUT REFLECTED RIPPLE CURRENT VIN = 24V
TYPICAL INPUT REFLECTED RIPPLE CURRENT VIN = 48V
RoHS COMPLIANCE INFORMATION
This series is compatible with RoHS soldering systems with a peak reflow solder temperature of
245ºC. The pin termination finish on this product series is Matte Tin over Nickel Preplate. The series
is backward compatible with Sn/Pb soldering systems. This series has a Moisture Sensitivity Level
(MSL) 1.
For further information, please visit www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232
2010/02/08 KDC_NPX20C.I01 Page 3 of 8
NPX20 Series
Isolated 20W Single Output DC/DC Converters
CHARACTERISITCS CURVES – NPX20S24018
EFFICIENCY VS OUTPUT CURRENT
OUTPUT RIPPLE & NOISE
TYPICAL TRANSIENT RESPONSE
THERMAL DERATING
Output load change:
50-100% & 100-50%
CHARACTERISITCS CURVES – NPX20S24025
EFFICIENCY VS OUTPUT CURRENT
OUTPUT RIPPLE & NOISE
TYPICAL TRANSIENT RESPONSE
THERMAL DERATING
Output load change:
100-50% & 50-100%
www.murata-ps.com
Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232
2010/02/08 KDC_NPX20C.I01 Page 4 of 8
NPX20 Series
Isolated 20W Single Output DC/DC Converters
CHARACTERISITCS CURVES – NPX20S24033
EFFICIENCY VS OUTPUT CURRENT
OUTPUT RIPPLE & NOISE
TYPICAL TRANSIENT RESPONSE
THERMAL DERATING
Output load change:
50-100% & 100-50%
CHARACTERISITCS CURVES – NPX20S48018
EFFICIENCY VS OUTPUT CURRENT
OUTPUT RIPPLE & NOISE
TYPICAL TRANSIENT RESPONSE
THERMAL DERATING
Output load change:
50-100% & 100-50%
www.murata-ps.com
Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232
2010/02/08 KDC_NPX20C.I01 Page 5 of 8
NPX20 Series
Isolated 20W Single Output DC/DC Converters
CHARACTERISITCS CURVES – NPX20S48025
EFFICIENCY VS OUTPUT CURRENT
OUTPUT RIPPLE & NOISE
TYPICAL TRANSIENT RESPONSE
THERMAL DERATING
Output load change:
50-100% & 100-50%
CHARACTERISITCS CURVES – NPX20S48033
EFFICIENCY VS OUTPUT CURRENT
OUTPUT RIPPLE & NOISE
TYPICAL TRANSIENT RESPONSE
THERMAL DERATING
Output load change:
50-100% & 100-50%
www.murata-ps.com
Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232
2010/02/08 KDC_NPX20C.I01 Page 6 of 8
NPX20 Series
Isolated 20W Single Output DC/DC Converters
MECHANICAL DIMENSIONS
SURFACE MOUNT “M” PACKAGE STYLE 1 (BOTTOM VIEW)
0.347 (8.81)
0.197 (5.00)
0.197 (5.00)
0.197 (5.00)
PIN CONNECTIONS
0.220 (5.59)
0.637
(16.18)
.
(1.27)
Pin
1
Function
+VOUT
1
2
9
3
4
6
1.010 0.910
(25.65) (23.11)
2
-VOUT
0.062
.58)
3
No Connection
Trim
10
8
7
4
5
No Connection
No Connection
No Connection
On/Off
0.220 (5.59)
0.197 (5.00)
0.197 (5.00)
0.091 (2.30)
6
7
2.015 (51.18)
8
9
-VIN
0.334
(8.50)
10
+VIN
0.063 (1.60)
Weight 14.2g
SURFACE MOUNT “PM” PACKAGE STYLE 2 (BOTTOM VIEW)
0.197 (5.00)
0.17 (4.32)
0.055
(1.397)
PIN CONNECTIONS
0.197 (5.00)
0.17 (4.32)
Pin
1
Function
1
8
2
3
4
+VOUT
-VOUT
1.165 1.055
(29.59) (26.80)
2
0.062
(1.58)
3
Trim
7
6
5
4
No Connection
No Connection
On/Off
0.17 (4.32)
0.197 (5.00)
0.197 (5.00)
0.091 (2.30)
5
6
1.915 (48.64)
7
-VIN
0.334
(8.50)
8
+VIN
0.063 (1.60)
Weight 14.5g
Unless otherwise stated all dimensions are in inches (mm) 0.01 (0.25).
www.murata-ps.com
Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232
2010/02/08 KDC_NPX20C.I01 Page 7 of 8
NPX20 Series
Isolated 20W Single Output DC/DC Converters
MECHANICAL DIMENSTIONS (continued)
THROUGH HOLE PACKAGE STYLE 3 (BOTTOM VIEW)
+VOUT
On/Off
+VIN
*
0.2 (5.08)
1.004
(25.65)
0.80 (20.32)
0.2 (5.08)
-VIN
Trim
-OUT
0.39 (10.01)
0.2 (5.08)
0.105 (2.67)
.
(15.43)
0.8
(20.32)
2.015 (51.18)
0.364 (9.25)
0.161 (4.1)
0.04 (1.04)
Ø
0.04 (0.90)
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 (0.25).
* Pins not fitted on D4C, four pinout version.
TRAY DIMENSIONS
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Quantity: 10
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 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.
www.murata-ps.com/locations
Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232
2010/02/08 KDC_NPX20C.I01 Page 8 of 8
相关型号：
NPX20S48018DC
DC-DC Regulated Power Supply Module, 1 Output, 10.8W, Hybrid, ROHS COMPLIANT PACKAGE-6
MURATA
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