Catalog
Non-Synchronous Boost Controller, Automotive Grade
Key Features
• Peak Current Mode Control with Internal Slope Compensation
• 0.2 V 2% Reference Voltage for Constant Current Loads
• Wide Input Voltage Range of 3.2 V to 45 V
• Input Undervoltage Lockout
• Internal Soft Start
• Low Quiescent Current in Sleep Mode
• Cycle by Cycle Current Limit Protection
• Hiccup Mode Overcurrent Protection
• Thermal Shutdown
Description
AI
The NCV8873 is an adjustable output non-synchronous boost controller which drives an external N-channel MOSFET. The device uses peak current mode control with internal slope compensation. The IC incorporates an internal regulator that supplies charge to the gate driver. Protection features include internally-set soft-start, undervoltage lockout, cycle-by-cycle current limiting and thermal shutdown. Additional features include low quiescent current sleep mode and externally-synchronizable switching frequency.