BP1386

Overview
The BP1386 is a deep dimmable step-down LED constant current controller that uses hysteresis control, which is particularly suitable for LED constant current applications such as 0-10V dimming and PWM dimming for DC inputs below 80V. The PWM pin of the BP1386 can accept PWM dimming signals for analog-to-digital hybrid dimming. When the PWM duty cycle is greater than 10%, analog dimming is used and the output current changes continuously. When the PWM duty cycle is less than 10%, digital dimming is used, and the output current is chopped by the PWM signal with an internal frequency of about 3.7kHz, and the dimming depth can be as low as 1%.

The ADIM pin of BP1386 can accept DC signals to set the maximum LED output current, with a setting range of about 33%~100%.

BP1386 has built-in frequency jitter function, improving system EMI.

BP1386 is packaged in SOP-8.

Features

• Input voltage up to 80V
• ADIM and PWM dual dimming interfaces, ADIM output current adjustable range 33%~100%, PWM dimming depth as low as 1% hysteresis control mode, constant current accuracy ≤+3%
• Quick start speed for dimming
• High precision 5V reference voltage
• Maximum operating frequency 1MHZ
• Overheating regulation
• Package: SOP-8

Application areas

• 0-10V dimming, wireless intelligent dimming
• LCD backlighting
• Dimmable LED lights

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