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 numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
TEA1733T/DB/65WTEA1733T/DB/65W,599352 913 02598DevelopmentSOT96-1
(SO8) 		Standard Marking
TEA1733T/DB/65WPRINTTEA1733T/DB/65WPRI9352 911 45598DevelopmentSOT96-1
(SO8) 		Standard Marking
TEA1733T/N1TEA1733T/N1,1189352 897 82118Volume productionSOT96-1
(SO8) 		Tape reel smdStandard Marking
TEA1733T/DB/65W/SLIMTEA1733T/DB/65W/SL9352 913 03598DevelopmentSOT96-1
(SO8) 		Standard Marking
TEA1733T/DB/DSP12/5VTEA1733T/DB/DSP12/9352 911 44598DevelopmentSOT96-1
(SO8) 		Standard Marking

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

Outline drawing

Package VersionPackage NamePackage DescriptionReference CodesIssue Date
SOT96-1SO8plastic small outline package; 8 leads; body width 3.9 mmMS-012 (JEDEC); 076E03 (IEC); 2003-02-18

Related documents

Leaflet

Other type

Reflow soldering

Selection guide

Wave soldering

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
TEA1733T/DB/65WTEA1733T/DB/65W,59Not availableNANA
TEA1733T/DB/65WPRINTTEA1733T/DB/65WPRINot availableNANA
TEA1733T/N1TEA1733T/N1,118TEA1733T/N1Always Pb-free11
TEA1733T/DB/65W/SLIMTEA1733T/DB/65W/SLNot availableNANA
TEA1733T/DB/DSP12/5VTEA1733T/DB/DSP12/Not availableNANA
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.

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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.

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Documentation for this product

File nameTitleTypeFormatDate
TEA1733TGreenChip SMPS control ICData sheetpdf2013-01-29
AN10868GreenChip TEA1733 series fixed frequency flyback controllerApplication notepdf2010-11-24
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
TEA1733T_LT_P_LP_JAGreenChip III SMPS control ICOther typepdf2013-01-29
UM10385GreenChip 65 W TEA1733(L)T demoboardUser manualpdf2010-06-02
UM10421GreenChip 65 W TEA1733LT/T printer reference boardUser manualpdf2010-12-17

Ordering & availability

Type numberOrdering code (12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
TEA1733T/DB/65W9352 913 02598TEA1733T/DB/65W,59      not available
TEA1733T/DB/65WPRINT9352 911 45598TEA1733T/DB/65WPRI      not available
TEA1733T/N19352 897 82118TEA1733T/N1,118ASIAARROW ASIA PAC LTD32,5001/31/2013Buy online 
   ASIAWPI2,500250005/21/2013Buy online 
   NANewark element141,57515/21/2013Buy online 
   NADIGI-KEY CORPORATION1,2805/21/2013Buy online 
   NAMOUSER ELECTRONICS7835/21/2013Buy online 
   EUFarnell Europe110105/21/2013Buy online 
   NANEWARK/ELEMENT14985/21/2013Buy online 
   JAPANCHIP ONE STOP5005/21/2013Buy online 
   ASIAElement 1410121/05/2013Buy online 
TEA1733T/DB/65W/SLIM9352 913 03598TEA1733T/DB/65W/SL      not available
TEA1733T/DB/DSP12/5V9352 911 44598TEA1733T/DB/DSP12/      not available

Sample

Sample orders normally take 2-4 days for delivery.
If you do not have a direct account with NXP our network of global and regional distributors is available and equipped to support you with NXP samples. As a NXP customer you also have the option to order samples via our sales organisation.

Demo boards

TEA1733DB
TEA1733DB

TEA1733T 65W 19.5V Notebook adapter

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