描述 Description

The NCV8501 is a family of precision micropower voltage regulators with 150mA output current capability. The family has output voltage options for adjustable, 2.5 V, 3.3 V, 5.0 V, 8.0 V, and 10 V that are accurate within ±2.0%. Maximum dropout voltage reaches 0.6 V at full load. Low quiescent current is a feature drawing only 90μA with a 100μA load. This part is ideal for all battery operated microprocessor equipment. Microprocessor control logic includes an active RESET (with DELAY), and a flag monitor which can be used to provide an early warning signal to the microprocessor of a potential impending RESET signal. The use of the flag monitor allows the microprocessor to finish any signal processing before the RESET shuts the microprocessor down.The active RESET circuit operates correctly at an output voltage as low as 1.0 V. The RESET function is activated during the power up sequence or during normal operation if the output voltage drops outside the regulation limits.The regulator is protected against reverse battery, short circuit, and thermal overload conditions. The device can withstand load dump transients making it suitable for use in automotive environments.

特性 Features

? Output Voltage Options: Adjustable, 2.5 V, 3.3 V, 5.0 V, 8.0 V, 10 V with +/-2% accuracy / 150mA Output Current
? Tight regulation limits
? Reset with Adjustable Delay Reset
? MPU control - design flexibity
? Enable
? Lower quiescent current when shut down allowing low standby battery drain
? Early Warning through Flag/Monitor Leads or General Use Comparator
? System benefits and design flexibility
? Fault Protections+60 V Peak Transient Voltage-15 V Reverse VoltageShort CircuitThermal Overload
? Limit number of external components:Robust load dump toleranceReverse battery protectionSelf protectionSelf protection
? AEC-Q100 Qualified

應用 Application

? Body and Chassis
? Engine Control Unit
? Powertrain
? Automotive

簡介

NCV8501屬于集成電路（IC）的線性+開關穩(wěn)壓器。由制造生產的NCV8501穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個最小量，并且在工作時會將輸入端的任何多余電壓轉換為熱量。對于大多數應用而言，雖然這種穩(wěn)壓器的效率低于開關模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應用。