The CS (Current Sense) pin monitors the voltage across a resistor in series with the LEDs to maintain constant brightness.
Ensure the external MOSFET isn't shorted and the VCC capacitor is healthy. 8682l ic datasheet
The 8682L operates as a Pulse Width Modulation (PWM) controller. It is designed to drive external MOSFETs to regulate current through LED strings. It is widely used in LED TVs and commercial lighting due to its high efficiency and robust protection features. Key Features Operates across various DC rails. PWM Dimming: Supports precise brightness control. The CS (Current Sense) pin monitors the voltage
The OVP pin monitors the output rail; if the LED string breaks, the IC shuts down to prevent a voltage spike. Troubleshooting Tips It is designed to drive external MOSFETs to
The 8682L usually comes in a small-outline package (SOP-8 or similar). While you should always verify with the manufacturer’s markings, the standard pin functions are as follows: Pin Number Description Main power supply input. GATE Output to the gate of the external MOSFET. GND System ground. CS Current sense input for monitoring LED current. OVP Over-voltage protection threshold input. EN/DIM Enable and PWM dimming control pin. COMP Compensation pin for stability loops. VCC Internal regulator output/bypass capacitor. Technical Specifications
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