76253/55EN

The 78253 series of converter transformers are specifically designed for use with the MAX253 chip set to provide isolated power supplies.
76253/55EN
DC Resistance Max 250
DC Resistance Secondary Max 362
Isolation Voltage 445
Leakage Inductance Max 205
Primary Inductance Typical 280
Series Headline EN Approved MAX250/251/253 Compatible Converter Transformers
Series Description The 76250ENC converter transformer is specifi 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. The 76253/XXENC converter transformers are specifi cally 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. The devices are fully approved to BS EN 60950 for use in telecoms applications.
Turn Ratio 1:1.3
Volt-Time Product 120
DC Resistance Max
250
DC Resistance Secondary Max
362
Isolation Voltage
445
Leakage Inductance Max
205
Primary Inductance Typical
280
Series Headline
EN Approved MAX250/251/253 Compatible Converter Transformers
Series Description
The 76250ENC converter transformer is specifi 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. The 76253/XXENC converter transformers are specifi cally 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. The devices are fully approved to BS EN 60950 for use in telecoms applications.
Turn Ratio
1:1.3
Volt-Time Product
120