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TEA1742T

NXP Semiconductors
Part Number TEA1742T
Manufacturer NXP Semiconductors
Description GreenChip PFC controller
Published May 4, 2009
Detailed Description TEA1742T GreenChip PFC controller Rev. 01 — 10 February 2009 www.datasheet4u.com Objective data sheet 1. General descr...
Datasheet PDF File TEA1742T PDF File

TEA1742T
TEA1742T


Overview
TEA1742T GreenChip PFC controller Rev.
01 — 10 February 2009 www.
datasheet4u.
com Objective data sheet 1.
General description The TEA1742T is a controller for Power Factor Correction (PFC).
Its high level of integration allows the design of a cost-effective power supply with a very low number of external components.
The special built-in green functions provide high efficiency at all power levels.
This applies to quasi-resonant operation at high power levels and quasi-resonant operation with valley skipping.
The TEA1742T enables highly efficient and reliable supplies with power requirements of up to 500 W, to be designed easily and with the minimum number of external components.
2.
Features 2.
1 Distinctive features I Universal mains supply operation (70 V (AC) to 276 V (AC)) I Dual boost PFC with accurate output voltage (NXP patented) I High level of integration, resulting in a very low external component count and a cost-effective design I Low start-up supply voltage 2.
2 Green features I Valley/zero voltage switching for minimum switching losses (NXP patented) I Frequency limitation to reduce switching losses I High ohmic resistive dividers possible to minimize losses 2.
3 Protection features I I I I I I Safe restart mode for system fault conditions Continuous mode protection by means of demagnetization detection (NXP patented) Accurate OverVoltage Protection (OVP) Open control loop protection IC OverTemperature Protection (OTP) Low and adjustable OverCurrent Protection (OCP) trip level NXP Semiconductors TEA1742T GreenChip PFC controller 3.
Applications www.
datasheet4u.
com I The device can be used in all applications that require an efficient and cost-effective PFC solution up to 500 W.
PC power supplies in particular can benefit from the high level of integration and high efficiency 4.
Ordering information Table 1.
Ordering information Package Name TEA1742T SO8 Description plastic small outline package; 8 leads; body width 3.
9 mm Version SOT96-1 Type number TE...



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