MAXIC Tech MT7853BS

MT7853BS is a high power factor, non-isolated LED driver IC that achieves full-cycle sensing through a floating ground, high-side sensing, buck switching power supply architecture. The IC operates in quasi-resonant mode, simultaneously improving efficiency and EMI performance. An integrated high-voltage supply circuit eliminates the need for external startup resistors and supply diodes; a built-in compensation circuit removes the COMP pin and external compensation capacitors; and an integrated THD compensation circuit meets lower total harmonic distortion requirements. The IC incorporates multiple protection features, including OVP, OCP, and over-temperature compensation, all with auto-recovery capability for enhanced system reliability. In addition, an integrated 650V high-voltage MOSFET simplifies the peripheral circuitry.

• Single-stage power factor correction (PF > 0.9)
• High-voltage supply, no external startup resistor or supply circuit required
• Built-in compensation circuit, no external COMP capacitor required
• Integrated THD compensation circuit, total harmonic distortion < 15%
• High-order harmonic distortion suppression
• High-accuracy LED output current (±3%)
• Excellent line and load regulation (±2%)
• Quasi-resonant operation mode
• Multiple protection mechanisms
• SOP7 package

• E14/E27/PAR30/PAR38/GU10 luminaires
• T8/T10 LED tubes
• Other LED driver applications