双极性晶体管

二极管

ESD保护、TVS、滤波和信号调节ESD保护

MOSFET

氮化镓场效应晶体管(GaN FET)

绝缘栅双极晶体管(IGBTs)

模拟和逻辑IC

汽车应用认证产品(AEC-Q100/Q101)

Smoke / Fire detector

Building safety has become an increasingly important issue across the world, especially in taller buildings, with early and accurate fire detection being vital to enable residents to safely evacuate in time. Smoke detectors play a vital role in this regard. With 10-year sealed battery alarms, battery replacements and late-night battery chirps are eliminated for a decade. However that means systems must be extremely efficient and reliable, while at the same time driving designs towards smaller, cost-effective batteries.

Block diagram

Highlighted components are Nexperia focus products

Products: DC:DC / Battery 

Products: HMI / MMI

Design challenges

  • Low-cost, battery driven smoke / fire detectors are increasingly a regularory requirement across the world
  • Long lifetime requires low leakage Schottky rectifiers
  • Low Voltage Low Rds on MOSFETs in leaded SOT457 and leadless DFN2020 packages
  • Nexperia has a broad discretes portfolio which can be used for driving a discrete IR (highlighted) or PWM IR directly from the microcontroller

MOSFET and GaN FET Handbook

Drawing on over 20 years’ of experience, the MOSFET and GaN FET Application Handbook: A Power Design Engineer’s Guide brings together a comprehensive set of learning and reference materials relating to the use of MOSFETs and GaN FETs in real world systems.

Download your copy today 

Logic Application Handbook

Download Nexperia’s Logic Design Engineer’s Guide and get a better understanding of Logic products, their features and properties, timing and interfacing aspects as well as get an overview of application insights.

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