TEA1753T 데이터 시트보기 (PDF) - NXP Semiconductors.
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TEA1753T
NXP Semiconductors.
TEA1753T Datasheet PDF : 32 Pages
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TEA1753T
HV start-up DCM/QR flyback controller with integrated
DCM/QR PFC controller
Rev. 3 — 24 August 2012
Product data sheet
1. General description
The TEA1753T is the third generation of green Switched Mode Power Supply (SMPS)
controller ICs. The TEA1753T combines a controller for Power Factor Correction (PFC)
and a flyback controller. 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
efficiency applies to quasi-resonant operation at high-power levels, quasi-resonant
operation with valley skipping, as well as reduced frequency operation at lower power
levels. At low-power levels, the PFC switches off to maintain high efficiency.
During low-power conditions, the flyback controller switches to frequency reduction mode
and limits the peak current to an adjustable minimum value. This mode ensures high
efficiency at low-power and good standby power performance while minimizing audible
noise from the transformer.
The controller is switched to the power-down mode for no-load operation. In this mode,
the controller is shut down for very low standby power applications.
The TEA1753T is a Multi-Chip Module, (MCM), containing two chips. The proprietary
high-voltage BCD800 process which makes direct start-up possible from the rectified
universal mains voltage in an effective and green way. The second low voltage
Silicon On Insulator (SOI) is used for accurate, high-speed protection functions and
control.
The TEA1753T enables the design of highly efficient and reliable supplies with power
requirements of up to 250 W using the minimum number of external components.
Remark: All values provided throughout this data sheet are typical values unless
otherwise stated.
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