TEA1791T Philips Semiconductors, TEA1791T Datasheet
TEA1791T
Available stocks
Related parts for TEA1791T
TEA1791T Summary of contents
Page 1
... High system efficiency from no load to full load 2.3 Protection features I Undervoltage protection 3. Applications I The TEA1791T is intended for adapters. The device can also be used in all other discontinuous conduction mode systems and quasi-resonant flyback systems that demand a highly efficient and cost-effective solution. 4. Ordering information Table 1. Ordering information ...
Page 2
... SR MOSFET 5 not connected 6 not connected 7 not connected 8 supply voltage Rev. 01 — 3 February 2009 TEA1791T GreenChip synchronous rectifier controller 310 GND 014aaa700 n.c. TEA1791T 6 n.c. 5 n.c. 014aaa701 © NXP B.V. 2009. All rights reserved ...
Page 3
... NXP Semiconductors 7. Functional description www.datasheet4u.com 7.1 Introduction The TEA1791T is the controller for synchronous rectification to be used in discontinuous conduction mode and quasi-resonant flyback converters. 7.2 Start-up and UnderVoltage LockOut (UVLO) The IC leaves the undervoltage lockout state and activates the synchronous rectifier circuitry as soon as the voltage on the V drops below 8 ...
Page 4
... Primary current Secondary current V DRIVER Synchronous rectification signals < startup Rev. 01 — 3 February 2009 TEA1791T GreenChip synchronous rectifier controller ) and undervoltage lockout the driver output © NXP B.V. 2009. All rights reserved 310 014aaa057 ...
Page 5
... T < amb storage temperature junction temperature electrostatic discharge class 2 voltage human body model machine model charged device model Thermal characteristics Parameter thermal resistance from junction to ambient Rev. 01 — 3 February 2009 TEA1791T Min Max 0.4 +38 - 120 0 0.45 55 +150 20 +150 [1] - ...
Page 6
... DRIVER Short time Long time voltage on pin CC DRIVER = voltage on pin DRIVER = 2 V voltage on pin DRIVER = 9 hys Rev. 01 — 3 February 2009 TEA1791T GreenChip synchronous rectifier controller Min Typ Max 8.2 8.5 8.8 [ 0.95 - 340 310 ...
Page 7
... NXP Semiconductors 11. Application information www.datasheet4u.com A switched mode power supply with the TEA1791T consists of a primary side discontinuous conduction mode flyback controller, a transformer, and an output stage with a feedback circuit. In the output stage a MOSFET (Qsec) is used for low conduction losses. The MOSFET is controlled by the TEA1791T. ...
Page 8
... 0.49 0.25 5.0 4.0 0.25 1.27 0.36 0.19 4.8 3.8 0.019 0.0100 0.20 0.16 0.244 0.05 0.01 0.014 0.0075 0.19 0.15 0.228 REFERENCES JEDEC JEITA MS-012 Rev. 01 — 3 February 2009 TEA1791T GreenChip synchronous rectifier controller detail 6.2 1.0 0.7 1.05 0.25 0.25 0.1 5.8 0.4 0.6 0.039 ...
Page 9
... Revision history www.datasheet4u.com Table 6. Revision history Document ID Release date TEA1791T_1 20090203 TEA1791T_1 Product data sheet GreenChip synchronous rectifier controller Data sheet status Change notice Product data sheet - Rev. 01 — 3 February 2009 TEA1791T Supersedes - © NXP B.V. 2009. All rights reserved ...
Page 10
... Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. GreenChip — trademark of NXP B.V. http://www.nxp.com salesaddresses@nxp.com Rev. 01 — 3 February 2009 TEA1791T © NXP B.V. 2009. All rights reserved ...
Page 11
... Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2009. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Document identifier: TEA1791T_1 All rights reserved. Date of release: 3 February 2009 ...