Package Information
| CAD Model: | View CAD Model |
| Pkg. Type: | 32 QFN |
| Pkg. Code: | |
| Lead Count (#): | 32 |
| Pkg. Dimensions (mm): | 5 x 5 |
| Pitch (mm): | 0.5 |
Environmental & Export Classifications
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| ECCN (US) | EAR99 |
| HTS (US) | 8542.39.0090 |
Product Attributes
| Lead Count (#) | 32 |
| Carrier Type | Tape & Reel |
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| Advanced Features | 10bit Analog dimming or 12bit individual dimming |
| Backlight for LCD Size (inches) | 24 - 135 |
| Brightness Control | SPI |
| Channels (#) | 16 |
| Controller / Integrated | Integrated |
| DC/DC Converter Interfaces (#) | 2 |
| Dimming Resolution (bits) | 12 |
| Fault Switch | Yes |
| ILED Average (Max) (mA) | 190 |
| ILED Peak (Max) (mA) | 190 |
| Input Voltage (Max) (V) | 5.5 |
| Input Voltage (Min) (V) | 4.5 |
| Input Voltage Range (V) | 4.5 - 5.5 |
| Integrated Diode | No |
| Interface | SPI |
| LED Current Accuracy (%) | 1 |
| LED Driver Channels (#) | 16 |
| Length (mm) | 5 |
| MOQ | 4000 |
| Operating Voltage Range (V) | 4.5 - 5.5 |
| Output Current Max/Channel (mA) | 190 |
| Output Voltage (Max) (V) | 30 |
| Parametric Category | Backlight LED Drivers |
| Pass Device | Integrated |
| Pitch (mm) | 0.5 |
| Pkg. Dimensions (mm) | 5 x 5 |
| Pkg. Type | 32 QFN |
| Published | Yes |
| Qty. per Reel (#) | 4000 |
| Qualification Level | Standard |
| Quiescent Current | NA |
| Supply Voltage (max) (V) | 30 - 30 |
| Temp. Range (°C) | -40 to +85°C |
| Total Current for DC/DC Lighting (mA) | 800 |
| Width (mm) | 5 |
Resources for AS3812
Description
The AS3812 LED driver for LCD backlighting integrates 16 highly accurate current sinks with digital control technology to improve brightness control for 4K and HDR LCD displays. Absolute current accuracy of better than ±1% combined with high resolution dimming control allows for the highest brightness uniformity across the panel.
The AS3812 offers 12-bit individual dimming control. This feature reduces power consumption and increases the contrast ratio through optimized local dimming. A single, 10-bit global dimming control also provides uniform brightness control over the full panel.
Enhanced DC/DC feedback control for up to two external DC/DC converters controlled by an SPI bus and a full array of protection features makes the AS3812 flexible and fully protected for any LCD display system.