The BP1386 is a deep dimmable step-down LED constant current controller that uses hysteresis control, specifically designed for LED applications such as 0-10V dimming and PWM dimming for DC inputs below 80V.

The PWM pin accepts signals for analog-to-digital hybrid dimming. When the PWM duty cycle is above 10%, it utilizes analog dimming for continuous current changes. Below 10%, it switches to digital dimming with an internal frequency of 3.7kHz, achieving a dimming depth as low as 1%. The ADIM pin allows for setting the maximum LED output current between 33% and 100%.

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