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UC3872DW-UC3872DWTR-UC3872DWTRG4-UC3872M-UC3872MG4 Fast Delivery,Good Price
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Partno Mfg Dc Qty AvailableDescript
UC3872DWTIN/a5761avaiResonant Lamp Ballast Controller
UC3872DWTRUNITRODE ?N/a42avaiResonant Lamp Ballast Controller
UC3872DWTRG4TIN/a2530avaiResonant Lamp Ballast Controller 16-SOIC 0 to 70
UC3872MTIN/a930avaiResonant Lamp Ballast Controller
UC3872MG4TI/BBN/a900avaiResonant Lamp Ballast Controller 16-SSOP 0 to 70
UC3872MTRTIN/a868avaiResonant Lamp Ballast Controller
UC3872MTRG4TIN/a1500avaiResonant Lamp Ballast Controller 16-SSOP 0 to 70


UC3872DW ,Resonant Lamp Ballast ControllerMAXIMUM RATINGSAnalog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . − 0.3 to +10 ..
UC3872DWTR ,Resonant Lamp Ballast ControllerFEATURES DESCRIPTION• Controls Different Types of Lamps: The UC3872 is a resonant lamp ballast cont ..
UC3872DWTRG4 ,Resonant Lamp Ballast Controller 16-SOIC 0 to 70features include a precision 1.2% reference, undervoltage lockout,and accurate minimum and maximum ..
UC3872M ,Resonant Lamp Ballast ControllerMAXIMUM RATINGSAnalog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . − 0.3 to +10 ..
UC3872MG4 ,Resonant Lamp Ballast Controller 16-SSOP 0 to 70+applicationUC1872INFOUC2872availableUC3872Resonant Lamp Ballast Controller
UC3872MTR ,Resonant Lamp Ballast Controllerfeatures include a precision 1.2% reference, undervoltage lockout,and accurate minimum and maximum ..
UN7231 ,Composite DeviceElectrical Characteristics T = 25°C ± 3°CaParameter Symbol Conditions Min Typ Max UnitCollector-ba ..
UN8231 ,Composite DeviceElectrical Characteristics T = 25°C ± 3°CaParameter Symbol Conditions Min Typ Max UnitCollector-ba ..
UN8231A ,Composite DeviceAbsolute Maximum Ratings T = 25°Ca+0.10 +0.10Parameter Symbol Rating Unit 0.45 0.45–0.05 –0.051.05 ..
UN9110 ,Silicon PNP epitaxial planer transistorTransistors with built-in ResistorUN9111/9112/9113/9114/9115/9116/9117/9118/9119/9110/911D/911E/911 ..
UN9110J ,Composite DeviceElectrical Characteristics T = 25°C ± 3°CaParameter Symbol Conditions Min Typ Max UnitCollector-ba ..
UN9111 ,Silicon PNP epitaxial planer transistorAbsolute Maximum Ratings (Ta=25˚C)n3 : CollectorParameter Symbol Ratings Unit SS–Mini Flat Type Pa ..


UC3872DW-UC3872DWTR-UC3872DWTRG4-UC3872M-UC3872MG4-UC3872MTR-UC3872MTRG4
Resonant Lamp Ballast Controller
UC1872
UC2872
UC3872
FEATURES
Controls Different Types of Lamps:
Cold Cathode Fluorescent, Neon, and
Gas Discharge Zero Voltage Switching (ZVS) of
Push-Pull Drivers Accurate Control of Lamp Current Variable Lamp Intensity Control 1μA Disable Current 4.5V to 24V Operation Open Lamp Detection Circuitry
DESCRIPTION

The UC3872isa resonant lamp ballast controller optimized for driving
cold cathode fluorescent, neon, and other gas discharge lamps. The res-
onant power stage developsa sinusoidal lamp drive voltage, and mini-
mizes switching loss and EMI generation. Lamp intensity adjustmentis
accomplished witha buck regulator, whichis synchronizedto the external
power stage’s resonant frequency. Suitable for automotive and battery
powered applications, the UC3872 draws only 1μA when disabled.
Soft start and open lamp detect circuitry have been incorporatedto mini-
mize component stresses. Open lamp detectionis enabledat the comple-
tionofa soft start cycle. The chipis optimized for smooth duty cycle
control to 100%.
Other features includea precision 1.2% reference, undervoltage lockout,
and accurate minimum and maximum frequency control.
Resonant Lamp Ballast Controller
BLOCK DIAGRAM
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