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AS3833

austriamicrosystems
Part Number AS3833
Manufacturer austriamicrosystems
Description 6 channel high-precision LED controller
Published Sep 26, 2016
Detailed Description Technical coantmesntAsGtill valid Datasheet AS3833 6 channel high-precision LED controller for 3D-LCD backlight with i...
Datasheet PDF File AS3833 PDF File

AS3833
AS3833

Overview
Technical coantmesntAsGtill valid Datasheet AS3833 6 channel high-precision LED controller for 3D-LCD backlight with integrated step-up controller 1 General Description The AS3833 is a 6 channel high precision LED controller with PWM input for driving external bipolar transistors in LCD-backlight panels, optimized for 2D and 3D operation.
The integrated step-up controller provides the necessary output voltage for the LED string supply.
The SMPS feedback control optimizes the power efficiency by adjusting the LED string supply voltage.
Build in safety features include under-voltage and thermal shutdown as well as open and short LED detection.
2 Key Features 6 channel LED controller Step-up controller optimized for 2D/3D mode Supply voltage range: 12V to 50V Output current up to 250mA per channel Absolute current accuracy +/- 0.
8% Channel to channel accuracy+/- 0.
6% 1 PWM input with internal phase shift Open LED detection and disconnect Short LED protection and auto-turnoff Undervoltage shutdown Temperature shutdown Temperature supervision of external BJT BJT Beta compensation SMPS feedback control DCDC Softstart Function Over Voltage Protection (OVP) Package SOIC-28 Package TQFP-32 Figure 1.
AS3833 3 Applications LED backlighting for 3D-LCD backlight TV sets and monitors www.
austriamicrosystems.
com/AS3833 Revision 1.
8 1 - 20 Technical coantmesntAsGtill valid AS3833 Datasheet - Contents Contents 1 General Description .
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1 2 Key Features .
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1 3 Applications .
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1 4 P...


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