ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：AS7420 SW
- Series：-
- Mfr：ams-OSRAM USA INC.
- Package：Bulk
- Type：-
- Topology：-
- Internal Switch(s)：-
- Number of Outputs：-
- Voltage - Supply (Min)：-
- Voltage - Supply (Max)：-
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：-
- Applications：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
Download product information
Overview
The AS3812A-ZQFT is a 16-channel LED driver IC designed for local dimming applications in LCD TV backlight panels. It integrates 16 independent PWM generators with programmable delay, period, and duty cycle to support local and scan dimming functions. The device features three free-configurable dynamic power feedback circuits, enabling compatibility with both white and RGB backlight configurations. Built-in safety mechanisms include thermal shutdown and open/short LED detection. All circuit parameters are programmable via I2C or SPI interfaces, allowing synchronization with the TV picture through external clock inputs.
Feature Summary
- Integrates 16 independent PWM generators for precise local and scan dimming control
- Supports dynamic power feedback for flexible white and RGB backlight implementations
- Includes built-in safety features such as thermal shutdown and LED fault detection
Applications
- LCD TV backlight panel drivers
- Local dimming systems
- RGB backlight configurations
Procurement Notes
Verify current availability status as the component may be subject to limited supply or special order requirements. Confirm package type and moisture sensitivity level prior to procurement. Ensure compliance with RoHS directives and check for any product discontinuance notifications from the manufacturer before finalizing design-in decisions.
Selection Notes
Select this component for designs requiring high-precision LED driving with integrated dimming capabilities. Consider the I2C/SPI interface for system integration flexibility. Evaluate the need for external synchronization inputs if video-synced dimming is required. Verify thermal management requirements due to integrated safety features and power dissipation characteristics.
Part Context
This part belongs to the AS369x series of LED lighting drivers from ams OSRAM. It is specifically engineered for advanced display backlighting solutions. The series emphasizes programmability and safety, catering to modern television and monitor manufacturing standards. Related parts in the family offer varying channel counts and current capabilities for different display sizes.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official datasheet or authorized distributors for cross-reference information regarding compatible alternatives or next-generation replacements.
