KMP_7625XEN [MURATA]
EN Approved MAX250/251/253 Compatible Converter Transformers; EN认证MAX250 /二百五十三分之二百五十一兼容的转换器变压器
| 型号： | KMP_7625XEN |
| 厂家： | 
muRata |
| 描述： | EN Approved MAX250/251/253 Compatible Converter Transformers |
| 文件： | 总4页 (文件大小：145K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
76250ENC, 76253/XXENC
EN Approved MAX250/251/253 Compatible Converter Transformers
SELECTION GUIDE
Output
Voltage
Max. Output
Current
Isolation
Voltage
Input Voltage
Turns
Ratio
Order Code
V
-
V
-
mA
-
VDC
76250ENC
76253/35ENC
76253/55ENC
6000
6000
6000
1CT:1
1:√5
3.3
5.0
5.0
5.0
100
200
1:1.33
76250ENC CHARACTERISTICS
Parameter
FEATURES
ꢀRoHS compliant
Conditions
Min.
1.0
Typ.
2.0
35
Max.
Units
mH
μH
Primary Inductance, LP (1&5)
Leakage Inductance, LL (1&5)2
10kHz, 100mV
100kHz, 100mV
2.5
40
ꢀMaxim MAX250/MAX251/MAX253
compatible
Interwinding Capacitance, CWW (1&2) 100kHz, 100mV
1.5
1.0
3.0
2.0
pF
D.C. Resistance, RDC (1&5)
Volt-time Product, ET (1&5)
<0.1VDC
Ω
Vμs
ꢀBS EN 60950 approved
ꢀIsolation to 6kVDC
50
76253/35ENC CHARACTERISTICS
Parameter
ꢀToroidal construction
Conditions
Min.
140
700
Typ.
200
Max.
Units
μH
ꢀIndustry-standard pinout
ꢀUL 94 V-0 package materials
ꢀFully encapsulated
Primary Inductance, LP (1&5)
Secondary Inductance, LS (2&6)
Leakage Inductance, LL (1&5)2
100kHz, 250mV
100kHz, 250mV
100kHz, 250mV
1000
7.0
μH
5.0
2.7
0.4
35
μH
Interwinding Capacitance, CWW (1&2) 100kHz, 250mV
3.5
pF
ꢀCompatible with RoHS soldering systems
D.C. Resistance, RDC (1&5)
Volt-time Product, ET (1&5)
<0.1VDC
0.8
Ω
Vμs
ꢀBackward compatible with
Sn/Pb soldering systems
25
76253/55ENC CHARACTERISTICS
Parameter
Conditions
Min.
80
Typ.
Max.
150
267
10.0
3.5
Units
μH
DESCRIPTION
Primary Inductance, LP (1&5)
Secondary Inductance, LS (2&6)
Leakage Inductance, LL (1&5)2
100kHz, 250mV
100kHz, 250mV
100kHz, 250mV
The 76250ENC converter transformer is
specifically designed for use with Maxim
chipsets to provide isolated RS232 interfaces. A
carefully controlled turns ratio ensures consistent
performance whilst a toroidal construction
minimises EMI.
142
μH
7.0
2.7
0.5
40
μH
Interwinding Capacitance, CWW (1&2) 100kHz, 250mV
pF
D.C. Resistance, RDC (1&5)
Volt-time Product, ET (1&5)
<0.1VDC
0.9
Ω
Vμs
30
The 76253/XXENC converter transformers are
specifically designed for use with the MAX253
chip set to provide isolated power supplies. The
5V version can supply 1W and the 3.3V version
can supply 500mW. A centre tapped secondary
winding allows for full bridge, half bridge or
voltage doubling.
ABSOLUTE MAXIMUM RATINGS
0°C to 70°C
Operating free air temperature range 76250EN
Operating free air temperature range 76253/XXEN
Storage temperature range
-40°C to 85°C
-50°C to 125°C
300°C
Lead temperature 1.5mm from case for 10 seconds
Peak current, IPK 76250EN
300mA
The devices are fully approved to BS EN 60950 for
use in telecoms applications.
400mA
Peak current, IPK 76253/XXEN
6000VDC
Isolation voltage (flash tested for 1 second)
SOLDERING INFORMATION3
Peak wave solder temperature
Pin finish
300˚C for 10 seconds
Matte tin
All specifications typical at TA=25°C
1
2
3
Refer to mechanical dimensions for pin locations shown in brackets.
With pins 2 & 6 short circuited.
For further information, please visit www.murata-ps.com/rohs
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232
KMP_7625XENC_B03 Page 1 of 4
76250ENC, 76253/XXENC
EN Approved MAX250/251/253 Compatible Converter Transformers
TYPICAL CHARACTERISTICS (VOLTAGE CURVES)
VOLTAGE CURVES
76253/35ENC
76253/55ENC
10
10
8
8
6
4
2
0
6
4
2
0
0
20
40
60
80
100
100
100
0
100
200
300
400
400
100
Output Current (mA)
Output Current (mA)
EFFICIENCY CURVES
76253/35ENC
76253/55ENC
100
80
60
40
20
0
100
80
60
40
20
0
0
20
40
60
80
0
100
200
300
Output Current (mA)
Output Current (mA)
VOLTAGE DEVIATION
76253/35ENC
76253/55ENC
110
105
110
105
100
95
100
95
90
90
-50 -25
0
25
50
75
-50 -25
0
25
50
75
Temperature (ºC)
Temperature (ºC)
All curves are derived from testing with the Maxim MAX235 IC using the circuit shown in application note MPAN-03 (download at http://www.murata-ps.com/data/apnotes/mpan-03.pdf).
www.murata-ps.com
Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232
KMP_7625XENC_B03 Page 2 of 4
76250ENC, 76253/XXENC
EN Approved MAX250/251/253 Compatible Converter Transformers
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
15.00 (0.59)
1
3
5
2
12.00
2.54
12.50
15.00
(0.59)
(0.472)
(0.1)
(0.492)
4*
6
76250ENC
XYYWW
7.50
(0.295)
4.10
(0.161)
Ø0.56 0.05
(Ø0.022 0.002)
10.16 (0.4)
2.42 (0.095)
Pin Connections 76250EN (Top View)
Primary Secondary
Pin Connections 76253/XXEN (Top View)
Primary
Secondary
1
3
5
1
3
5
2
6
2
4
6
* 76250EN Pin not fitted.
Unless otherwise stated all dimensions in mm (inches) 0.25mm ( 0.01).
All pins on a 2.54mm (0.1") pitch and within 0.25mm (0.01") of true position.
TUBE DIMENSIONS
RECOMMENDED FOOTPRINT DETAILS
ꢃꢂꢊꢃꢃꢂꢍꢇꢄꢅꢃꢂꢃꢀꢁꢃꢂꢃꢃꢊꢈꢄꢄꢄ
2.54 (0.100)
3ꢃꢂꢉꢇꢄꢅꢃꢂꢃꢌꢃꢈ
ꢍꢉꢂꢃꢃꢄ
ꢅꢃꢂꢊꢊꢆꢈ
ꢋꢂꢃꢃꢄ
ꢅꢃꢂꢌꢍꢇꢈ
ꢉꢂꢃꢃ
ꢅꢃꢂꢀꢉꢊꢈ
x6 HOLES*
Ø1.00+0.15-0.00 (Ø0.039+0.006-0.000)
ꢀꢁꢂꢃꢃꢄꢅꢃꢂꢆꢁꢇꢈ
Tube length: 480 2.00mm (18.90 0.079"). Tube quantity: 30
Tube material: Antistatic coated clear pvc.
Holes may be omitted for variants with fewer than 6 pins.
Unless otherwise stated all dimensions in mm (inches) 0.25 (0.01).
All pins on a 2.54 (0.1) pitch and within 0.25 (0.01) of true position.
Unless otherwise stated all dimensions in mm (inches) -0.00 +0.50 (-0.00 +0.020).
www.murata-ps.com
Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232
KMP_7625XENC_B03 Page 3 of 4
76250ENC, 76253/XXENC
EN Approved MAX250/251/253 Compatible Converter Transformers
TECHNICAL NOTES
ISOLATION VOLTAGE
REPEATED HIGH-VOLTAGE ISOLATION TESTING
‘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.
It is well known that repeated high-voltage isolation testing of a barrier component can
actually degrade isolation capability, to a lesser or greater degree depending on materi-
als, construction and environment. We therefore strongly advise against repeated high
voltage isolation testing, but if it is absolutely required, that the voltage be reduced by
20% from the specified test voltage.
All products in this series are 100% production tested at their stated isolation voltage.
This series is recognised by the British Standards Institution to a working voltage of
300Vrms for Reinforced Insulation systems.
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
Murata Power Solutions, Inc.
France:
Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com
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 REGISTERED
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
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
Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com
notice.
© 2008 Murata Power Solutions, Inc.
www.murata-ps.com
Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232
KMP_7625XENC_B03 Page 4 of 4
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