NCV8871数据手册集成电路（IC）的PMIC-稳压器-DCDC开关式控制器规格书PDF

描述 Description

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.

特性 Features

• Peak Current Mode Control with Internal Slope Compensation
• Good transient response over a wide input voltage and load range
• 1.2 V 2% Reference voltage
• Accurate voltage regulation
• Wide Input Voltage Range of 3.2 V to 40 Vdc, 45 V Load Dump
• Works in a wide variety of applications
• Input undervoltage lockout (UVLO)
• Disables start up in undervoltage conditions
• Internal SoftStart
• Decreases inrush current
• Low quiescent current in sleep mode
• Very low off current
• Cycle-by-cycle current limit protection
• Protects against over current conditions
• Hiccup-mode short-circuit protection (SCP)
• Protects against short circuit faults
• Thermal shutdown (TSD)
• Thermally protects IC

应用 Application

• Start-Stop systems
• SEPIC (Non-inverting Buck Boost)
• Direct Gas Injection
• Automotive Systems

简介

NCV8871属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由制造生产的NCV8871DC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。