概述

　　汽车电子立柱锁是汽车安全防盗系统的重要组成部分，当智能钥匙靠近车体，车门自动解锁并解除警戒，点火后，电子立柱锁主控MCU通过CAN/LIN与BCM及PEPS进行通讯验证，允许解锁。本方案介绍基于瑞萨电子RL78/F14实现汽车电子立柱锁控制应用，汽车等级，满足其智能精准控制及严格的EMC及安全需求。使系统运行更可靠，成本更优。

　　优势

　　· MELEXIS红外温度传感器MLX90615，高达0.2℃的医疗级精度，工厂校准。原厂可提供专业支持，降低设计难度，加快产品上市速度。满足国际耳温枪标准，相关客户批量应用，世强常备库存。

【MLX90615】

Melexis推出了可用性极强的MLX90615产品。这是全球第一款整合在超小TO-46封装中的高灵敏红外温度计，而此前TO-46常用于耳式温度计产品。此款性价比极高的超小型非接触式温度计TO-46封装中内置了红外感应器和信号调节芯片，使其能够准确的以数字形式显示测得温度。

MLX90615产品的感应元件是一款带有可感受目标红外辐射的微机械振膜晶片。Melexis的这种技术经过多年工业和汽车温度测量领域中的应用，已经得到了充分的证实。温度计中定制的信号调节芯片能够放大并数字化感应振膜上的热电偶产生的微小电压，同时芯片存储器中储存了工厂设定的刻度参数，能够用来准确的计算目标体的温度。数字形式显示的温度是完全线性的，并且会对环境温度进行补偿。高度的整合性使得MLX90615与过去红外产品相比具有更高的性价比。

MLX90615在信号调节芯片中使用了先进的低噪音放大器，一枚16-bitADC以及功能强大的DSP元件。温度计能适应从-40°C到85°C的广泛工作温度范围，目标的体表可操作温度为-40°C至115°C，测量分辨率保持在0.02°C。MLX90615产品在36°C至39°C的关键温度范围内绝对准确度达到了极高的±0.1°C。

Mlx90615使用3V电源电压，在正常工作中电流的消耗量小于1mA。感应器有节能“睡眠”模式，能够让当前电流消耗量低于2µA。Mlx90615符合AECQ100标准和绿色环保标准RoHS。遵照JEDEC020C它可以在最高260℃温度下焊接。

Melexis红外产品市场经理LucBuydens说：“这款新型智能红外温度计能够让我们的客户更为方便及高效地生产耳式温度计和其他要求高精确度的医用设备。在自我监控和可移动电子装置的应用中，它具有十分理想的功效，其小巧的外形和低功耗特性都具有很高的价值。

特性和益处：

Ø 小尺寸，低成本

Ø 高集成：内部集成了热电堆红外探头+放大+DSP数模转换，

Ø 出厂校准设置宽温度范围(生产过和免校准;节省专业设备，简化生产流程;)

Ø 高(医用)精度：在36°C至39°C的关键温度范围内绝对准确度达到了极高的

Ø SMBus兼容的数字接口;连续读数的客户定制PWM输出

Ø 3V电源电压，省电模式工作能耗仅1 mA

Ø 嵌入式发射率补偿

应用实例：

Ø 高精度非接触温度测量

Ø 手提式温度计

Ø 耳温计

Ø 家用温度控制

Ø 卫生保健

Ø 家畜监控

Ø 多重区域温度控制–可通过公用两线连接100传感器

MLX90615现货供应：

产品型号：

MLX90615SSG-DAG

MLX90615SSG-DAA

MLX90615SSG-DAA-000-TU

MLX90615SSG-DAG-000-TU

封装：TO-46

最少包装：55PCS/管

库存数量：10K

　　Features and Benefits

　　 Small size, low cost

       Easy to integrate

　　 Factory calibrated in wide temperature range: -40…85˚C for sensor temperature and

　　-40…115˚C for object temperature

　　 High accuracy of 0.5°C over wide temperature

　　range (0...+50°C for both TA and TO )

       High (medical) accuracy calibration

       Measurement resolution of 0.02°C

       SMBus compatible digital interface

       Power saving mode

　　 Customizable PWM output for continuous

　　 reading

　　 Embedded emissivity compensation

        3V supply voltage

　　 Applications Examples

　　 High precision non-contact temperature

　　measurements

　　Hand-held thermometers

       Ear thermometers

　　Home appliances with temperature control

       Healthcare

　　Livestock monitoring

　　Multiple zone temperature control – up to 127

　　      sensors can be read via common 2 wires

　　· RENESAS的16bit RL78内核，具有高速处理性能与最低的功耗，内置POR电路和LVD电路，无需外挂专用复位及电源监控芯片，外围设计电路简单，节省成本;内置数据存储器，无需外挂EEPROM，节约成本;支持ATUOSAR，提供MCAL，符合中高端车系统要求;专用3相互补PWM输出，电机控制，精准高效;常备库存，比同资源的其他竞争对手产品有约10%价格优势。

      【RL78】

RL78 Family

The RL78 Family 16-bit microcontrollers are the convergence of the high CPU performance of the 78K0R and the superb on-chip

functions of the R8C and the 78K, and offer a comprehensive lineup

of 10-128 pin and 1-512 KB products for the 8/16-bit market.

Realizing industry-leading low power consumption at 46 μA/MHz

consumption during normal operation and 0.57 μA/MHz during clock

operation, you can expect greatly improved power efficiency using

RL78 microcontrollers. Built-in features such as a high-precision

(±1%) high-speed on-chip oscillator, background operation data flash capable of 1 million rewrites, temperature sensor, and interface ports for multiple power supplies help reduce system costs and size.

Family Lineup

RL78/G1x

The RL78/G1x (general purpose group) is a true low power MCU series within the RL78 Family.

RL78/L1x

The RL78/L1x microcontroller family is a peripheral rich family of true low power microcontrollers integrating LCD controller/driver, suitable for industrial and consumer LCD display applications. RL78/L1x offer unique display driver functionality to reduce system power consumption.

RL78/H1x

The RL78/H1x microcontroller family is a peripheral rich family of true low power microcontrollers integrating analoig functions, suitable for healthcare applications.

RL78/I1x

The RL78/I1x microcontrollers are part of the RL78 microcontroller family with rich analog integration and support high temperature operation. RL78/I1x is ideal for application specific solutions but also suitable for many general purpose application In the mass market with tough environment operation.

RL78/F1x

The RL78/F1x microcontrollers are suitable for automotive applications. As the successors of both the 78K0R and R8C, they realize low power consumption and are equipped with built-in functions suitable for automotive applications such as CAN communications, advanced timer, and safety functions.

RL78/D1x (Automotive Only)

Renesas is introducing the RL78/D1x as an optimized solution for the BRICs and low-end instrument cluster markets. The RL78/D1x is the successor of 78K0/Dx2 or UPD78082x microcontrollers and suited for car instrument cluster, built-in car instrument cluster dedicated features such as Sound Generator, Stepper Motor Controller/Driver and LCD Segment Controller/Driver etc.

Road Map

RL78 Family Features

Learn more about the features of the RL78 Family that offer true low power & low voltage operation, high quality & safety, and broad scalability.

Development Environment for the Renesas RL78 Family MCUs

Renesas Electronics supports all aspects of application development for the RL78 Family with products such as the integrated development environments e² studio and CS+, real-time OSes, and programming tools.

　　· KYOCERA京瓷汽车级无源晶体 ,8-16MHZ汽车级晶体 ，标准封装3225,小尺寸还有2016封装,主流汽车主控RENESAS,NXP,TI,ATMEL等主流厂家官方推荐晶振型号,汽车级AEC-Q200认证,工作温度:-40-150℃,全球唯一能从材料端-陶瓷底座-导电胶-封装最终产品的晶体厂家，可以为中国客户免费做电容匹配，保证设计应用更可靠。

　　· LITTELFUSE TVS(CAN总线保护)满足200-500W不同功率应用，低箝位电压和泄露电流低，符合AEC-Q101汽车电子认证标准, CAN总线保护最佳之选，常用型号有批量备货，可快速供货。