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General description

The UBA2021 is a high-voltage IC intended to drive and control Compact Fluorescent Lamps (CFL) or fluorescent TL-lamps. It contains a driver circuit for an external half-bridge, an oscillator and a control circuit for starting up, preheating, ignition, lamp burning and protection.

Features

  • Adjustable preheat and ignition time
  • Adjustable preheat current
  • Adjustable lamp power
  • Lamp temperature stress protection at higher mains voltages
  • Capacitive mode protection
  • Protection against a too-low drive voltage for the power MOSFETs.

Products/packages

Type numberNorth American Type numberOrdering code (12NC)Product statusPackagePackingMarkingChemical contentLeadfree conversion date
UBA2021P/N2UBA2021PN9352 634 34112Volume productionSOT27-1
(DIP14)
TubeStandard MarkingUBA2021P/N2
Always Pb-free
UBA2021T/N29352 112 50112DevelopmentSOT108-1
(SO14)
TubeStandard MarkingUBA2021T/N2
week 35, 2004
UBA2021T/N2UBA2021T/N2-T9352 112 50518Volume productionSOT108-1
(SO14)
Reel Dry Pack, SMD, 13"Standard MarkingUBA2021T/N2
week 11, 2004
UBA2021T/N2UBA2021T/N29352 112 50512Volume productionSOT108-1
(SO14)
Tube Dry PackStandard MarkingUBA2021T/N2
week 11, 2004
UBA2021T/N2UBA2021TD-T9352 112 50118DevelopmentSOT108-1
(SO14)
Reel Pack, SMD, 13"Standard MarkingUBA2021T/N2
week 35, 2004

Pricing/ordering/availability

Type numberOrdering code(12NC)Indicative price/unit($)RegionDistributorIn stockInventory dateBuy onlineSamples
UBA2021P/N29352 634  34112  0.8900NAAVNET ELECTRONICS MARKETING1,0907/4/2008 Buy online Order samples
   NAARROW ELECTRONICS6277/4/2008 Buy online  
UBA2021T/N29352 112  50112       not available
UBA2021T/N29352 112  50518  1.0400NAMOUSER ELECTRONICS2,4957/6/2008 Buy online Order samples
UBA2021T/N29352 112  50512  1.0400NADIGI-KEY CORPORATION3,4036/29/2008 Buy online not available
UBA2021T/N29352 112  50118  0.8900     not available

Applications


Related applications
CFL
HF-TL

Block diagrams/pinning

Technical documents

Application Notes

AN98091_1; CFL 13W demo PCB with UBA2021 for integrated lamp-ballast designs (19-Oct-98)
AN98099; HF-TL Ballast with UBA2021 for TLD58W Lamp (14-Aug-02)
AN99066; CFL 13W demo PCB with UBA2021 for integrated lamp-ballast designs (11-Jan-00)

Support Documents

75014014; Managing a brighter world with lighting power and control solutions (2005-06-14)
75009193; The natural selection in today's analog world (2001-12-01)

Parametrics/similar products

Type numberPackageREMARKSSupply
voltage(V)
Operating
temp.(Cel)
Type of light
UBA2021P/N2SOT27-1
(DIP14)
adjustable pre heat current 630 -40~150 CFL / HFTL
UBA2021T/N2SOT108-1
(SO14)
adjustable pre heat current 630 -40~150 CFL / HFTL

Similar products

UBA2021 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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