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TEA1750T/N1/DG,518

Description
IC PFC CONTROLLER 16SO
CategoryPower/power management    The power supply circuit   
File Size164KB,29 Pages
ManufacturerNXP
Websitehttps://www.nxp.com
Environmental Compliance
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TEA1750T/N1/DG,518 Overview

IC PFC CONTROLLER 16SO

TEA1750T/N1/DG,518 Parametric

Parameter NameAttribute value
Source Url Status Check Date2013-06-14 00:00:00
Brand NameNXP Semiconductor
Is it Rohs certified?conform to
Parts packaging codeSOP
package instruction3.90 MM, PLASTIC, MS-012, SOT-109-1, SOP-16
Contacts16
Manufacturer packaging codeSOT109-1
Reach Compliance Codecompliant
Is SamacsysN
Base Number Matches1
TEA1750
GreenChip III SMPS control IC
Rev. 02 — 15 December 2008
Product data sheet
1. General description
The GreenChip III is the third generation of green Switched Mode Power Supply (SMPS)
controller ICs. The TEA1750 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 applies
to quasi-resonant operation at high power levels, quasi-resonant operation with valley
skipping, as well as to reduced frequency operation at lower power levels. At low power
levels, the PFC switches over to burst mode control to maintain high efficiency. In burst
mode, soft-start and soft-stop functions are added to eliminate audible noise.
During low power conditions, the flyback controller switches to frequency reduction mode
and limits the peak current to 25 % of its maximum value. This will ensure high efficiency
at low power and good standby power performance while minimizing audible noise from
the transformer.
The proprietary high voltage BCD800 process makes direct start-up possible from the
rectified universal mains voltage in an effective and green way. A second low voltage
Silicon On Insulator (SOI) IC is used for accurate, high speed protection functions and
control.
The TEA1750 enables highly efficient and reliable supplies with power requirements up to
250 W, to be designed easily and with the minimum number of external components.
2. Features
2.1 Distinctive features
I
Integrated PFC and flyback controller
I
Universal mains supply operation (70 V AC to 276 V AC)
I
High level of integration, resulting in a very low external component count and a
cost-effective design
2.2 Green features
I
On-chip start-up current source
2.3 PFC green features
I
Valley/zero voltage switching for minimum switching losses (patented)
I
Frequency limitation to reduce switching losses
I
Burst mode operation if a low load is detected at the flyback output (patented)

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Is it Rohs certified? conform to conform to
package instruction 3.90 MM, PLASTIC, MS-012, SOT-109-1, SOP-16 SOP, SOP16,.25
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