FAN7346M

4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