OB3375 Overview
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.
OB3375 Key Features
- Low system cost and high efficiency
- Quasi-Resonant buck topology operation
- Programmable CC regulation
- PWM and PWM to analog bination
- Zero voltage signal detected to improve
- LED+/LED- short circuit protection
- LED-/GND short circuit protection
- LED open loop protection
- Cycle-by-cycle current limiting
- Built-in leading edge blanking (LEB)