- 亚博电竞菠菜
- Power Management
- xinyabo体育
- Audio
- Sensors
- Lighting
- Custom Mixed-Signal ICs (ASICs)
- Power Conversion
- Power Switching
- Memory
- Silicon IP
- GreenPAK Configurable Mixed-Signal
- Timing
- Communications
- IO-Link
- Industrial and Automotive ASICs
- Industrial Edge Computing
- IOX Expansion Module
- IzoT Commissioning Tool (CT)
- IzoT Net Server
- IzoT SDK 2
- IzoT ShortStack SDK
- LNS DDE Server
- LON Upgrade
- LonScanner FX Protocol Analyzer
- Smart Edge Platform
- SmartServer IoT
- SmartServer IoT™ Partner Program
- SmartServer™ IoT Edge Server
- U10 USB Network Interface
- U20 USB Network Interface
- U60 DIN USB Expansion Modules
- U60 FT USB Network Interface Module
- U70 PL-20 USB Network Interface
- Current Control
- Motor Control
- Display
- Modules
- Longevity Program
- Product Selector
- Document Search
- 亚博国际官网平台网址
- Application Solution Diagrams
- Connected Health
- Connected Consumer
- Connected rechargeable E-cigarette
- True Wireless Stereo
- USB Type-C ANC Headset
- Beacon, Tracker, Findable
- DECT Ambient Noise Cancellation (ANC) Headset
- Rechargeable E-Cigarette
- Game Controller
- Feature-rich Rechargeable E-Cigarette
- Rechargeable Game Controller
- Bluetooth ANC Headset
- Toothbrush
- Electric MP3 toothbrush
- Voice RCU
- Animal Tracker / Location Tracker
- POS Terminals
- Wall-to-Battery & Direct Charging
- Smart Home
- Smart Appliances
- Industrial & Infrastructure
- Smart Lighting
- Wearables
- Configurable Mixed-signal IC Solutions
- Smart Home
- Home Appliances
- Networking
- Automotive
- Industrial
- Smart Meters
- SoC PMIC Solutions
- Communications
- Connected Medical
- Transportation
- Application Solution Diagrams
- Support
- 亚博全网
You are here
AS3812
AS3812 LED Driver
Highly Accurate 16-Channel Integrated Current Sinks for LED Backlighting in 4K Ultra HD and HDR LCD Display Applications
A team of engineers is ready to answer your questions
Individual and Global Dimming Capable for Uniform Brightness Control
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 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.
Features
- 16-channel LED driver with internal current sink MOSFET
- Integrated current setting resistors for lower BOM cost
- 30V maximum output voltage per channel
- Highly accurate absolute current accuracy of ±1%
- Individual 12-bit PWM for each output and one 10-bit global analog dimming control
- Improves contrast ratio and saves power via local dimming
- Comprehensive protection features:
- Individual LED short protection
- 外部复位输入——输出到系统tem is ready
- Register Lock/Unlock
- LED open-fault detection
- Over-temperature protection
Features
- SPI daisy-chain interface simplifies design when supporting more than 16 LED strings
- 3 SPI communication protection modes in one LED driver
- Internal PLL ensures jitter-free operation even with noisy VSYNC signal
亚博国际官网平台网址
- LCD Backlighting for Ultra HD/4K HDR TVs
- HDR Notebooks/Monitor Displays
Block Diagrams
Functional Block Diagram
Typical Applications Diagram
Resources
| Date | Version | |
|---|---|---|
| AS3812 Product Summary | 19/12/2019 | Rev. 1.01 |
For technical support or information on how to buy, contact us directly.
Need technical help?
Visit our support web site to:
- Get help from Dialog experts online.
- Search the forums.
- Access software, drivers, tools & utilities.