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UBA3070

Selection guide

Datasheet

UBA3070
(Product Specification)
02-Dec-08, 13 pages, 78 kB

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UBA3070 - LED backlight driver IC

General description
Features
Products/packages
Quality/reliability/chemical content
Pricing/ordering/availability
Samples
Discontinued information
Applications
Block diagrams/pinning
Design support
Parametrics/similar products
Print/email
Disclaimers
All information hereunder is subject to the subsequent disclaimers

General description

The UBA3070 driver IC is the first member of a first generation of power-efficient LED backlight driver ICs.

Highly efficient, flexible and reliable LED drivers can easily be designed using the UBA3070 control IC.

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Features

  • Switch-mode buck controller that drives strings of LEDs up to 600 V power-efficiently
  • Controller with power-efficient boundary conduction mode of operation:
    • No reverse recovery losses in freewheel diode
    • Zero current switching for turn-on of switch
    • Zero voltage or valley switching for turn-on of switch
    • Minimal required inductance value and size
  • Direct Pulse Width Modulation (PWM) dimming available
  • Fast transient response through cycle-by-cycle current control, thereby:
    • Preventing over or undershoots in the LED current
    • Enabling efficient PWM dimming by quickly turning the converter on and off and thereby removing the need for extra dim switches and high-side drivers
  • Single loosely controlled input voltage required for all LED strings in RGB backlights
  • No binning on LED forward voltage required
  • Protections:
    • Undervoltage lockout
    • Leading edge blanking
    • Overcurrent
    • Overtemperature
  • Low cost LED driver solution:
    • No Schottky diode required because of zero-current switching
    • No dim switch and high-side driver required for PWM dimming
    • Smaller inductor possible compared to fixed-frequency continuous conduction mode controllers

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Products/packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
UBA3070T/N1UBA3070T/N1,1189352 856 92118Volume productionSOT96-1
(SO8) 		Tape reel smdStandard Marking

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Quality/reliability/chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree Conversion dateRHFIRF (FIT)MTBF (hours)MSL
UBA3070T/N1UBA3070T/N1,118UBA3070T_N1
Always Pb-free

Quality and reliability disclaimer

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Pricing/ordering/availability

Type numberOrdering code(12NC)Orderable part numberIndicative price/unit($)RegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
UBA3070T/N19352 856 92118  UBA3070T/N1,118  NAARROW ELECTRONICS118 11/19/2009Buy onlinenot available
    NADIGI-KEY CORPORATION465 11/20/2009Buy online 
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Applications

  • The UBA3070 is typically suited as a high voltage LED backlighting application in LCD televisions and monitors (See Figure 1)

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Block diagrams/pinning

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Design support

Application Notes

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Parametrics/similar products

Type numberPackageDescriptionPackage reference codeVhs [max](V)Remark
UBA3070T/N1SOT96-1
(SO8)		LED backlight driver ICSO8650.0buck


Similar products
UBA3070 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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