Catalog
Non-Synchronous Boost Controller, Automotive Grade
Key Features
• Peak Current Mode Control with Internal Slope Compensation
• 1.2 V 2% Reference voltage
• Wide Input Voltage Range of 3.2 V to 40 Vdc, 45 V Load Dump
• Input undervoltage lockout (UVLO)
• Internal SoftStart
• Low quiescent current in sleep mode
• Cycle-by-cycle current limit protection
• Hiccup-mode short-circuit protection (SCP)
• Thermal shutdown (TSD)
Description
AI
The NCV8871 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, hiccup-mode short-circuit protection and thermal shutdown. Additional features include low quiescent current sleep mode and externally-synchronizable switching frequency.