NCV887711D1R2G

The NCV887711D1R2G from On Semiconductor is a non-synchronous boost controller IC. It is engineered to provide a stable output voltage during automotive start-stop events and battery voltage sags, driving an external N-channel MOSFET. The device utilizes peak current mode control with internal slope compensation.

Key electrical specifications include a wide input voltage range of 2 V to 40 V, withstanding up to 45 V during load dump conditions. It operates with a maximum duty cycle of 83% and a switching frequency of 170 kHz. The controller offers features such as cycle-by-cycle current limiting and thermal shutdown for protection. In sleep mode, it exhibits low quiescent current, typically less than 12 µA.

This boost controller is housed in an 8-SOIC package with surface mount mounting type. The operating temperature range is -40°C to 150°C (TJ). Its design is suitable for applications requiring regulated voltage through cranking and start-stop operation in vehicles.

Protection features include cycle-by-cycle current limiting and thermal shutdown. Additional features include low quiescent current sleep mode operation. The NCV8877 is enabled when the supply voltage drops below the wake up threshold. Boost Operation is initiated when the supply voltage drops below the regulation set point.