FAN7346M
数据手册.pdf4通道LED电流平衡控制器 4-Channel LED Current Balance Controller
Description
The FAN7346 is an LED current-balance controller that controls 4-LED arrays to maintain equal LED current.
The FAN7346 has a high withstanding voltage, so is suitable for edge-type LED BLU and LED Lighting. To minimize components between primary to secondary, the FAN7346 generates a new integrated feedback signal.
Features
Linear Balance Control for 4-Channel LED Arrays
Wide LED String Voltage Range: 100V
Wide VCCVoltage: 10.5V to 35V
External Linear Regulation Switch: MOSFET or BJT
Internal Voltage Regulator for Feedback
Monitoring Drain-Source Voltage of External Switch
Precision Current Accuracy Trimmed to 1.5%
Supports External PWM Dimming - Positive
Supports Wide Dimming Ratio: 0.5%~100%
Adaptive Linear Regulation Method
Generate Integrated Feedback Signal for Primary Controller Current Feedback + PWM Dimming
High Efficiency by Primary Side Direct Feedback
Thermal Shutdown Auto-Recovery
Over-Voltage Regulation
Channel Individual Open-LED Protection
Channel Individual Short-LED Protection
Channel Individual Over-Current Protection
Error Flag Output
28-Pin SOIC
Applications
LED BLU for LCD TV
LED BLU for LCD Monitor
LED Lighting