TEA1733T

Low voltage start-up flyback controller suitable for fixed frequency/CCM


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The TEA1733/38 family of IC´s are low cost Switched Mode Power Supply (SMPS) controller IC intended for flyback topologies. They operate in fixed frequency mode. To reduce ElectroMagnetic Interference (EMI), frequency jitter has been implemented. Slope compensation is integrated for Continuous Conduction Mode (CCM) operation.

Features and benefits

  • SMPS controller IC enabling low-cost applications
  • Large input voltage range (12 V to 30 V)
  • Very low supply current during start-up and restart (typically 10 μA)
  • Low supply current during normal operation (typically 0.5 mA without load)
  • Overpower or high/low line compensation
  • Adjustable overpower time-out
  • Adjustable overpower restart timer
  • Fixed switching frequency with frequency jitter to reduce EMI
  • Frequency reduction with fixed minimum peak current
  • Slope compensation for CCM operation
  • Low and adjustable OverCurrent Protection (OCP) trip level
  • Adjustable soft start operation
  • Two protection inputs (e.g. for input UVP and OVP, OTP and output OVP)
  • IC overtemperature protection

Applications

  • All applications requiring efficient and cost-effective PSU solutions up to 75 W
All information on this product information page is subject to the subsequent disclaimers:
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Show functional diagram

Block diagram: TEA1733LT, TEA1733T
Block diagram: TEA1733LT, TEA1733T

Demo boards

TEA1733DBTEA1733DB

TEA1733T 65W 19.5V Notebook adapter


Parametrics of this product

SymbolParameterConditionsMinTyp/NomMaxUnit
Vstartupstart-up voltage18.620.622.6V
foscoscillator frequency6266.571kHz
ICC(startup)start-up supply currentVCC < Vstartup51015µA
Tjjunction temperature-40150°C
VCCsupply voltagecontinuous-0.430V
VCCsupply voltaget < 100 ms35V
Vth(UVLO)undervoltage lockout threshold voltage11.212.213.2V

Package

Type numberPackageOutline versionReflow-/Wave solderingPackingProduct statusMarkingOrderable part number, (Ordering code (12NC))
TEA1733T/N1SO8
(SOT96-1)
sot096-1_poSO-SOJ-REFLOW
Wave_Soldering_Profile
Reel Pack, SMD, 13" Q1/T1ActiveStandard MarkingTEA1733T/N1,118
( 9352 897 82118 )

Pinning information

PinSymbolDescriptionSimplified outlineGraphic symbol
1VCCsupply voltagePinning diagram SOT96-1 (SO8)SOT96-1
2GNDground
3DRIVERgate driver output
4ISENSEcurrent sense input
5VINSENSEinput voltage protection input
6PROTECTgeneral purpose protection input
7CTRLcontrol input
8OPTIMERoverpower and restart timer

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateMSLMSL LF
TEA1733T/N1TEA1733T/N1,118TEA1733T/N1Always Pb-free11
Quality and reliability disclaimer

Quality and reliability disclaimer

Important Legal Notice on the product/generic quality information, No Warranty

NXP Semiconductors is providing this data for your convenience only. Please note however that NO WARRANTY, REPRESENTATION, GUARANTEE OR LEGALLY BINDING PRODUCT DESCRIPTION is provided by publishing this informational data, nor does NXP Semiconductors acknowledge or accept any liability related thereto. The documentation and data on NXP Semiconductors products can be found in the data sheets as officially published by NXP Semiconductors. For all purchase of products from NXP Semiconductors the NXP Semiconductors' General Terms and Conditions of Commercial Sale will apply.

NXP SEMICONDUCTORS PROVIDES THE DATA HEREUNDER “AS IS” WITHOUT WARRANTY WHATSOEVER. NXP SEMICONDUCTORS DOES NOT WARRANT OR REPRESENT THAT ANY DATA PROVIDED ON THIS WEBSITE IS CORRECT OR FIT FOR A PARTICULAR PURPOSE WHATSOEVER. IT IS PROVIDED WITHOUT ANY WARRANTY WHATSOEVER, WHETHER EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, COMPLETENESS NONINFRINGEMENT OF INTELLECTUAL PROPERTY OR OTHERWISE AND MAY BE CHANGED, MODIFIED OR DELETED BY NXP SEMICONDUCTORS AT ANY TIME.

Any use of the data provided hereunder is at your own risk.

IN NO EVENT SHALL NXP SEMICONDUCTORS, BE LIABLE FOR ANY DIRECT, SPECIAL, INDIRECT, CONSEQUENTIAL, PUNITIVE, OR INCIDENTAL DAMAGES (INCLUDING WITHOUT LIMITATION DAMAGES FOR LOSS OF BUSINESS, BUSINESS INTERRUPTION, LOSS OF USE, LOSS OF DATA OR INFORMATION, AND THE LIKE) ARISING OUT OF THE USE OF THE DATA, WHETHER OR NOT BASED ON TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY, BREACH OF CONTRACT, BREACH OF WARRANTY OR ANY OTHER THEORY, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. NOTWITHSTANDING ANY DAMAGES THAT YOU MIGHT INCUR FOR ANY REASON WHATSOEVER (INCLUDING, WITHOUT LIMITATION, ALL DAMAGES REFERENCED ABOVE AND ALL GENERAL DAMAGES), THE ENTIRE LIABILITY OF NXP SEMICONDUCTORS, AND YOUR EXCLUSIVE REMEDY FOR ALL OF THE FOREGOING SHALL BE LIMITED TO ACTUAL DAMAGES INCURRED BY YOU BASED ON REASONABLE RELIANCE UP TO ONE DOLLARS (US$1.00). THE FOREGOING LIMITATIONS, EXCLUSIONS AND DISCLAIMERS SHALL APPLY TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, EVEN IF ANY REMEDY FAILS OF ITS ESSENTIAL PURPOSE.

Your use of this data, and all consequences of such use, is solely your responsibility. You must perform sufficient engineering and additional qualification testing in order to properly evaluate your application and determine whether a candidate NXP Semiconductors device is suitable for use in that application.

NXP Semiconductors' products are specifically designed and manufactured to be used within the electrical, thermal, mechanical and other parameters set forth in NXP Semiconductors' data sheets. Quality and reliability data provided by NXP Semiconductors, such as MTBF, MSL and FIT, is intended to be a non-binding estimate of product performance based upon diffusion process, history only. It does not imply that any performance levels reflected in such data can be met if the product is operated outside the conditions expressly stated in the latest published data sheet for a device or in your application.

The RoHS data provided hereunder is preliminary and non binding for NXP Semiconductors. NXP Semiconductors does not accept any liability related to this data.

NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage nor for any other use that is not explicitly agreed between the parties. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk.

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Documentation for this product

File nameTitleTypeFormatDate
TEA1733TGreenChip SMPS control ICData sheetpdf2013-07-11
AN10868GreenChip TEA1733 series fixed frequency flyback controllerApplication notepdf2013-05-22
Data_sheet_AN10868_JAAN10868 - GreenChip TEA1733 シリーズ 固定周波数フライバック コントローラ japanese versionApplication notepdf2011-02-25
75017052NXP GreenChip flyback controllers TEA173xBrochurepdf2011-03-15
001aan129GreenChip logoLogogif2012-04-20
UM10385GreenChip 65 W TEA1733(L)T demoboardUser manualpdf2010-06-02
UM10421GreenChip 65 W TEA1733LT/T printer reference boardUser manualpdf2010-12-17
SOT96-1_118SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packingpdf2013-04-19
SOT96-1_115Tape reel SMD; standard product orientation 12NC ending 115Packingpdf2012-11-23
Wave_Soldering_ProfileWave Soldering ProfileWave solderingpdf2013-09-30
SOT96-1_518SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending, 518 or Y Ordering code (12NC) ending 518Packingpdf2014-06-02
SO-SOJ-REFLOWFootprint for reflow solderingReflow solderingpdf2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave solderingpdf2009-10-08
sot096-1_poplastic small outline package; 8 leads; body width 3.9 mmOutline drawingpdf2009-10-08

Ordering & availability

Type numberOrdering code (12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
TEA1733T/N19352 897 82118TEA1733T/N1,118NADigiKey4,533112/19/2014Buy online 
   NAMouser Electronics2,66212/19/14Buy online 
   NANewark element141,463250013/12/2014Buy online 
   ASIAChip One Stop2512/19/2014Buy online 

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Demo boards

TEA1733DBTEA1733DB

TEA1733T 65W 19.5V Notebook adapter

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