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参数资料
| 型号： | 76253/35ENC |
| 厂商： | Murata Power Solutions Inc |
| 文件页数： | 1/4页 |
| 文件大小： | 0K |
| 描述： | XFRMR 3.3V IN/5V OUT MAX253 EN |
| 产品培训模块： | Magnetics Offering |
| 产品目录绘图： | 7625xENC Series Top 7625xENC Series Side |
| 标准包装： | 30 |
| 变压器类型： | 隔离和数据接口（封装式） |
| 电感： | 200µH |
| 匝数比 - 主:副： | 1 : 2.24 |
| 安装类型： | 通孔 |
| 尺寸/尺寸： | 15.00mm L x 15.00mm W |
| 高度 - 座高（最大）： | 12.50mm |
| 其它名称： | 811-1284-5 |
www.murata-ps.com
SELECTION GUIDE
76250ENC, 76253/XXENC
EN Approved MAX250/251/253 Compatible Converter Transformers
Order Code
76250ENC
76253/35ENC
76253/55ENC
Input Voltage
V
-
3.3
5.0
Output
Voltage
V
-
5.0
5.0
Max. Output
Current
mA
-
100
200
Isolation
Voltage
V DC
6000
6000
6000
Turns
Ratio
1CT:1
1:√5
1:1.33
FEATURES
RoHS compliant
76250ENC CHARACTERISTICS
Parameter
Primary Inductance, L P (1&5)
Conditions
10kHz, 100mV
Min.
1.0
Typ.
2.0
Max.
2.5
Units
mH
Maxim MAX250/MAX251/MAX253
Leakage Inductance, L L (1&5)
2
100kHz, 100mV
35
40
μH
compatible
Interwinding Capacitance, C WW (1&2)
100kHz, 100mV
1.5
3.0
pF
BS EN 60950 approved
Isolation to 6kV DC
D.C. Resistance, R DC (1&5)
Volt-time Product, E T (1&5)
<0.1V DC
50
1.0
2.0
Ω
Vμs
Toroidal construction
76253/35ENC CHARACTERISTICS
Industry-standard pinout
UL 94 V-0 package materials
Fully encapsulated
Compatible with RoHS soldering systems
Backward compatible with
Sn/Pb soldering systems
Parameter
Primary Inductance, L P (1&5)
Secondary Inductance, L S (2&6)
Leakage Inductance, L L (1&5) 2
Interwinding Capacitance, C WW (1&2)
D.C. Resistance, R DC (1&5)
Volt-time Product, E T (1&5)
Conditions
100kHz, 250mV
100kHz, 250mV
100kHz, 250mV
100kHz, 250mV
<0.1V DC
Min.
140
700
25
Typ.
200
1000
5.0
2.7
0.4
35
Max.
7.0
3.5
0.8
Units
μH
μH
μH
pF
Ω
Vμs
76253/55ENC CHARACTERISTICS
DESCRIPTION
The 76250ENC converter transformer is
speci?cally 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.
Parameter
Primary Inductance, L P (1&5)
Secondary Inductance, L S (2&6)
Leakage Inductance, L L (1&5) 2
Interwinding Capacitance, C WW (1&2)
D.C. Resistance, R DC (1&5)
Volt-time Product, E T (1&5)
Conditions
100kHz, 250mV
100kHz, 250mV
100kHz, 250mV
100kHz, 250mV
<0.1V DC
Min.
80
142
30
Typ.
7.0
2.7
0.5
40
Max.
150
267
10.0
3.5
0.9
Units
μH
μH
μH
pF
Ω
Vμs
The 76253/XXENC converter transformers are
speci?cally designed for use with the MAX253
ABSOLUTE MAXIMUM RATINGS
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.
The devices are fully approved to BS EN 60950 for
use in telecoms applications.
For full details go to
Operating free air temperature range 76250EN
Operating free air temperature range 76253/XXEN
Storage temperature range
Lead temperature 1.5mm from case for 10 seconds
Peak current, I PK 76250EN
Peak current, I PK 76253/XXEN
Isolation voltage (?ash tested for 1 second)
SOLDERING INFORMATION 3
Peak wave solder temperature
Pin ?nish
All speci?cations typical at T A =25°C
1 Refer to mechanical dimensions for pin locations shown in brackets.
2 With pins 2 & 6 short circuited.
3 For further information, please visit www.murata-ps.com/rohs
0°C to 70°C
-40°C to 85°C
-50°C to 125°C
300°C
300mA
400mA
6000V DC
300?C for 10 seconds
Matte tin
www.murata-ps.com/rohs
www.murata-ps.com/support
KMP_7625XENC_B04 Page 1 of 4
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