Datasheet Details
| Part number | AS3834 |
|---|---|
| Manufacturer | austriamicrosystems |
| File Size | 1.54 MB |
| Description | 4 channel high-precision LED controller |
| Datasheet |
 AS3834 Datasheet
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General Description
The AS3834 is a 4 channel high precision LED controller with PWM inputs 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.
Key Features
- include under-voltage and thermal shutdown as well as open and short LED detection. 2 Key Features 4 channel LED controller Step-up controller optimized for 2D/3D mode Supply voltage range: 12V to 50V Output current up to 270mA per channel Absolute current accuracy +/- 0.8% Channel to channel accuracy+/- 0.6% 4 separated PWM inputs Open LED detection and disconnect Short LED protection and auto-turnoff Undervoltage shutdown Temperature shutdown Temperature supervision of external BJT BJT Beta c.