NCP1370BDR2G

The NCP1370BDR2G from ON Semiconductor is a highly integrated PWM current mode controller designed for isolated flyback and non-isolated constant current topologies, specifically targeting LED TV backlights and general lighting applications.

This controller operates in quasi-resonant mode for high efficiency and provides precise LED constant current regulation with a typical accuracy of ±1%. It features primary side sensing, eliminating the need for an opto-coupler, and supports both analog and digital dimming, which can be combined for enhanced precision. The device includes a programmable peak current limit for design flexibility and a standby mode with reduced current consumption.

Key electrical features include a wide VCC range, a totem pole driver with a 12V gate clamp, and line feed-forward for improved regulation accuracy. Robust protection features are built-in, such as LED open circuit protection, VCC over voltage protection, secondary diode short protection, output short circuit protection, shorted current sense pin fault detection, brown-out protection, VCC under voltage lockout, and thermal shutdown.

The NCP1370BDR2G is supplied in an 8-SOIC package suitable for surface mounting. Its operating temperature range is -40°C to 125°C (TJ). This component is Pb-free and Halide-free, meeting MSL1 requirements.