TEA1750T

GreenChip III SMPS control IC


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The GreenChip III is the third generation of green Switched Mode Power Supply (SMPS) controller ICs. The GreenChip III 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.

Features and benefits

  • Integrated PFC and flyback controller
  • Fixed boost PFC
  • On-chip high voltage start-up current source
  • Valley/zero voltage switching for both flyback and PFC
  • PFC Burst mode operation if a low load is detected at the flyback output
  • Frequency reduction to maintain high efficiency at low output power levels
  • Continuous mode protection by means of demagnetization detection
  • Accurate OverVoltage Protection (OVP) for both converters
  • Open control loop protection for both converters
  • General purpose input for latched protection
  • Adjustable output overpower protection for flyback converter

Applications

  • Cost-effective power supply solution for up to 250 W
All information on this product information page is subject to the subsequent disclaimers:
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Show functional diagram

Block diagram: SSL1750T, TEA1750T
Block diagram: SSL1750T, TEA1750T

Parametrics of this product

SymbolParameterConditionsMinTyp/NomMaxUnit
Vstartupstart-up voltage212223V
fsw(PFC)maxmaximum PFC switching frequency100125150kHz
fsw(fb)maxmaximum flyback switching frequency100125150kHz
Tjjunction temperature-40150°C
VHVvoltage on pin HV-0.4650V
VCCsupply voltage-0.438V
Vth(UVLO)undervoltage lockout threshold voltage141516V

Products / Packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
TEA1750T/N1/DGTEA1750T/N1/DG,5189352 872 68518Volume productionSOT109-1
(SO16) 		Reel Dry Pack, SMD, 13"Standard Marking

The variants in the table below are discontinued. See the table Discontinuation information at the bottom of this page for more information.

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
TEA1750T/N1TEA1750T/N1,5189352 829 67518Withdrawn
Replacement product		SOT109-1
(SO16) 		Reel Dry Pack, SMD, 13"Standard Marking

Pinning information

PinSymbolDescriptionSimplified outlineGraphic symbol
1VCCsupply voltagePin configuration for TEA1750T (SOT109-1)SOT109-1
2GNDground
3FBCTRLcontrol input for flyback
4FBAUXinput from auxiliary winding for demagnetization timing and overvoltage protection for flyback
5LATCHgeneral purpose protection input
6PFCCOMPfrequency compensation pin for PFC
7VINSENSEsense input for mains voltage
8PFCAUXinput from auxiliary winding for demagnetization timing for PFC
9VOSENSEsense input for PFC output voltage
10FBSENSEprogrammable current sense input for flyback
11PFCSENSEprogrammable current sense input for PFC
12PFCDRIVERgate driver output for PFC
13FBDRIVERgate driver output for flyback
14HVShigh voltage safety spacer, not connected
15HVShigh voltage safety spacer, not connected
16HVhigh voltage start-up and valley sensing of flyback part

Discontinuation information

Type numberOrdering code (12NC)Last-time buy dateLast-time delivery dateReplacement productDN NoticeStatusComments
TEA1750T/N193528296751831-Dec-1030-Jun-11TEA1750T/N1/DGDN 66
  • Multi source product
  • Standard availability
Standard End of Life. A change over to DG only.

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
TEA1750T/N1/DGTEA1750T/N1/DG,518TEA1750T/N1/DGAlways Pb-free33

The variants in the table below are discontinued. See the table Discontinuation information at the bottom of this page for more information.

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
TEA1750T/N1TEA1750T/N1,518Not availableAlways Pb-free23
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Discontinuation information

Type numberOrdering code (12NC)Last-time buy dateLast-time delivery dateReplacement productDN NoticeStatusComments
TEA1750T/N193528296751831-Dec-1030-Jun-11TEA1750T/N1/DGDN 66
  • Multi source product
  • Standard availability
Standard End of Life. A change over to DG only.

Documentation for this product

Ordering & availability

Type numberOrdering code(12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
TEA1750T/N1/DG9352 872 68518TEA1750T/N1/DG,518ASIAARROW ASIA PAC LTD2,5005/23/2012Buy online 
   ASIAWPI2,500250005/14/2012Buy online 
   NAMOUSER ELECTRONICS2,4315/24/2012Buy online 
   NAMOUSER ELECTRONICS2,4315/24/2012Buy online 
   NAFUTURE ELECTRONICS85/23/2012Buy online 
   EUFUTURE ELECTRONICS UK85/23/2012Buy online 
   ASIAFUTURE ELECTRONICS- ASIA85/23/2012Buy online 

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