NCV97400中文资料Automotive Multi-Output Power Management IC (PMIC) for Safety Applications数据手册ONSEMI规格书

描述 Description

The NCV97400 is a 4−output monolithic regulator consisting of 3 buck regulators and 1 boost regulator with supervisory functions including window voltage monitoring on all outputs and a window watchdog timer. This product is ideal for ADAS (Advanced Driver Assistance Systems) applications and utilizes an independent voltage reference and an adjustable independent oscillator to realize the supervisory features.

A 40 V non−synchronous buck regulator converts the battery supply voltage to a 3.3 V output, and delivers up to 3 A (peak). This output rail may be used as the input voltage for the 2 synchronous secondary buck converters and the non−synchronous secondary boost converter. Each secondary buck is adjustable and can be set from 2.5 V to 0.8 V with 2 A peak current limit and can be supplied by up to 3.6 V from a separate supply. The secondary boost output voltage is fixed and is intended to supply a low current 5.0 V rail for In−Vehicle Networking circuits (IVN).

All internal MOSFETs are N−channel devices, and bootstrap circuits are used to drive high side MOSFETs. All 4 SMPS outputs use peak current mode control with internal slope compensation. The IC incorporates an internal regulator that supplies charge to the low−voltage gate drivers.

The NCV97400 is a functional safety solution that reduces the time required to develop safety systems that comply with the International Standards Organization (ISO) 26262. The device includes a range of integrated safety features such as dedicated feedback references, output voltage monitoring, and window watchdog timer.

特性 Features

• 3 Enabled Buck Converters
• 1 Boost Converter for IVN Supply
• Wide Input of 4.1 to 40 V with Undervoltage Lockout (UVLO)
• Fixed, 2 MHz Base Switching Frequency
• Pseudo−random Spread Spectrum for Improved EMI
• Window Watchdog with Independent References
• Cycle−by−cycle Current Limit Protection
• External Frequency Synchronization
• NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable
• QFN Package with Wettable Flanks (pin edge plating)
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant

应用 Application

• Safety Applications
• ADAS (Advanced Driver Assistance Systems)
• Body Electronics
• Telematics
• Automotive

简介

NCV97400属于集成电路（IC）的特殊用途稳压器。由制造生产的NCV97400特殊用途稳压器该系列产品用于电源控制、某种形式的转换，适用于特定的复杂应用。因此，各种产品特性集差异较大，包括空燃比传感器接口、汽车交流发电机电压调节、DDR 端接、液体透镜控制、摩托车转向信号控制、热电 (peltier) 冷却器控制、压电触觉控制、阀门控制、小型发动机管理等。