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TEA1762T Datasheet

  • TEA1762T

  • GreenChip synchronous rectifier controller

  • 15頁(yè)

  • PHILIPS

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TEA1762T
GreenChip synchronous recti鏗乪r controller
Rev. 02 鈥?25 April 2007
Product data sheet
1. General description
The TEA1762T is a member of the new generation of Synchronous Recti鏗乪r (SR)
controller ICs for switched mode power supplies. Its high level of integration allows the
design of a cost-effective power supply with a very low number of external components.
The TEA1762T is a controller IC dedicated for synchronous recti鏗乧ation on the secondary
side of discontinuous conduction mode and quasi resonant 鏗倅back converters. Besides
electronics for synchronous recti鏗乧ation, it also has integrated circuitry for output voltage
and output current regulation.
The TEA1762T is fabricated in a Silicon On Insulator (SOI) process. This NXP SOI
process makes possible a wide range of operation.
2. Features
2.1 Distinctive features
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Combined synchronous recti鏗乧ation and primary feedback control functionality
Wide supply voltage range (8.6 V to 38 V)
High level of integration, resulting in a very low external component count
Wide opto output voltage range (3.5 V to 38 V)
Accurate internal voltage reference for voltage control (within 1 %)
Separate sense ground for accurate voltage sensing
High driver output voltage of 10 V to drive all MOSFET brands to the lowest R
DSon
Reference voltage output pin
2.2 Green features
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Low current consumption
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High system ef鏗乧iency from no load to full load
2.3 Protection features
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Undervoltage protection
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Internal over-temperature protection
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General purpose protection input pin

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