Features
- 16-channel LED driver
- Output voltage only limited by external transistor
- Output current only limited by external transistor
- Linear current setting using 10-bit DAC
- Current accuracy ±0.5% at VDAC = 250mV
AS3820 Functional Block Diagram
Description
The AS3820 is a 16-channel precision LED for use in LCD-backlight panels. Dynamic power feedback controls the external power supply to guarantee the best efficiency.
Built-in safety features include thermal shutdown as well as open and short LED detection. The device is programmable via a serial interface.
Parameters
| Attributes | Value |
|---|---|
| Channels (#) | 16 |
| Integrated Diode | No |
| Interface | SPI |
| Fault Switch | No |
| Over Voltage Protection | No |
Applications
- LED backlighting for LCD - TV sets and monitors
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