Product Summary

The TEA1761T is a Synchronous Rectifier (SR) controller IC 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 TEA1761T is a controller IC dedicated for synchronous rectification on the secondary side of discontinuous conduction mode and quasi resonant flyback converters. Besides electronics for synchronous rectification, it also has integrated circuitry for output voltage and output current regulation. The TEA1761T is fabricated in a Silicon On Insulator (SOI) process. This NXP SOI process makes possible a wide range of operation

Parametrics

TEA1761T absolute maximum ratings: (1)supply voltage: -0.4 to +38 V; (2)voltage on pin OPTO: -0.4 to +38 V; (3)voltage on pin SRSENSE: 120 V; (4)voltage on pin VSENSE: -0.4 to +5 V; (5)voltage on pin ISENSE: -0.4 to +5 V; (6)current on pin: 12 mA; (7)current on pin DRIVER: -0.8 to +3 A; (8)current on pin SRSENSE: -3 mA; (9)total power dissipation: 0.45 W; (10)storage temperature: -55 to +150 ℃; (11)junction temperature: -20 to +150 ℃.

Features

TEA1761T features: (1)Combined synchronous rectification and primary feedback control functionality; (2)Wide supply voltage range (8.6 V to 38 V); (3)High level of integration, resulting in a very low external component count; (4)Wide opto coupler output voltage range (3.5 V to 38 V); (5)Accurate internal voltage reference for voltage control (within 1 %); (6)High driver output voltage of 10 V to drive all MOSFET brands to the lowest RDSon.

Diagrams

TEA1761T block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TEA1761T/N2,118
TEA1761T/N2,118
NXP Semiconductors
DC/DC Switching Controllers SYN Rectifier Controller 8-Pin
Data Sheet
0-1: $0.67
1-25: $0.65
25-100: $0.62
100-250: $0.59
TEA1761T/N2/DG,118
TEA1761T/N2/DG,118
NXP Semiconductors
DC/DC Switching Controllers 2.7A 0.45W 10%
Data Sheet
0-1: $0.83
1-25: $0.76
25-100: $0.66
100-250: $0.58