DC/DC PWM调光方案

The OB3375X is a high efficiency LED power switch designed for white LEDS and for large LCDS backlight. OB3375X is built-in a quasi-resonant control method buck DC/DC converter. The controller implements a peak current mode control scheme and an internal transconductance amplifier to accurately cont • Low system cost and high efficiency\r\n\r\n• Quasi-Resonant buck topology operation\r\n\r\n• Programmable CC regulation\r\n\r\n• PWM and PWM to analog combination dimming\r\n\r\n• Zero voltage signal detected to improve efficiency and EMI performance\r\n\r\n• LED+/LED- short circuit protection\r\n;

OB

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