Datasheet Summary
High performance buck LED driver
GENERAL DESCRIPTION
The OB3375 is a high efficiency LED driver designed for white LEDS and for large LCDS backlight. OB3375 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 control the output current over a wide input and load conditions. The transconductance amplifier reference is set by internal reference voltage and the duty cycle at HPWM pin. Low frequency LPWM dimming input that can accept an external control signal with a duty ratio of 1%-100%. OB3375 offers prehensive protection Features to protect the...