RT8487 Overview
Description
The RT8487 is a Boundary mode high PF floating buck constant LED current output controller with an internal gate driver. The RT8487 features a ZCS detector which keeps system operating in BCM and obtaining excellent power efficiency, better EMI performance.
Key Features
- Support High Power Factor and THDi Consideration Applications
- Programmable Constant LED Current with Highly Precision Current Regulation
- Extremely Low Quiescent Current Consumption and 1µA Shutdown Current
- True Low System BOM Cost and Economical Floating Buck Converter Solution
- Unique Programmable AND Pin for ZVS Setting to Achieve Best Power Efficiency
- Universal Input Voltage Range with Off-Line Topology
- Built-in Over Thermal Protection
- Built-in Over Voltage Protection
- Output LED String Open Protection
- Output LED String Short Protection
