方案概述

方案的车载空气净化器采用电晕放电法产生负氧离子来净化空气，这种产生方法相较于紫外线照射法、热离子发射法等，电晕放电法可控性更好，产出效率更高且经济环保。车载负氧离子发生器通过MCU控制负离子发生器模块产生电离负氧离子，负氧离子在电场和微风扇风力的作用下，源源不断地排出，从而形成含有大量负氧离子的清新空气。本方案采用高性价比的车规级LIN系统MCU及低价低功耗LDO，低价打造高质量小型车载空气净化器。

       优势

　　• 车规级16位MCU(R5F1096E)最高运行速度为32MHz，集成硬件乘除法器/MAC /DIV，车规级LIN系统，20-pin SSOP小封装，打造小体积车载空气净化器，且性价比超优，非常适合汽车前装市场;

【RL78/F12】

Features

> Minimum instruction execution time can be changed from high speed (0.03125 μs: @ 32 MHz operation with highspeed

on-chip oscillator) to ultra low-speed (30.5 μs: @ 32.768 kHz operation with subsystem clock)

> General-purpose register: 8 bits × 32 registers (8 bits × 8 registers × 4 banks)

> ROM: 8 to 64 KB, RAM: 0.5 to 4 KB, Data flash memory: 4 KB

> High-speed on-chip oscillator

• Select from 32 MHz (TYP.), 24 MHz (TYP.), 16 MHz (TYP.), 12 MHz (TYP.), 8 MHz (TYP.), 4 MHz (TYP.), and 1

MHz (TYP.)

> On-chip single-power-supply flash memory (with prohibition of block erase/writing function)

> Self-programming (with boot swap function/flash shield window function)

> On-chip debug function

> On-chip power-on-reset (POR) circuit and voltage detector (LVD)

> On-chip watchdog timer (operable with the dedicated internal low-speed on-chip oscillator)

> On-chip multiplier and divider/multiply-accumulator

• 16 bits × 16 bits = 32 bits (Unsigned or signed)

• 32 bits ÷ 32 bits = 32 bits (Unsigned)

• 16 bits × 16 bits + 32 bits = 32 bits (Unsigned or signed)

> On-chip key interrupt function

> On-chip clock output/buzzer output controller

> On-chip BCD adjustment

> I/O ports: 16 to 44 (N-ch open drain: 0 to 4)

> Timer

• 16-bit timer: 8 channels

• Watchdog timer: 1 channel

• Real-time clock: 1 channel

• Interval timer: 1 channel

• Wakeup timer: 1 channel

> Serial interface

• CSI: 0 to 8 channels

• UART/UART (LIN-bus supported): 1 to 5 channels

• I2

C/Simplified I2

C communication: 0 to 7 channels

> 8/10-bit resolution A/D converter (VDD = 1.8 to 5.5 V): 4 to 12 channels

> Power supply voltage: VDD = 1.8 to 5.5 V (J version), VDD = 2.7 to 5.5 V (K version)

> Operating ambient temperature: TA = −40 to +85°C (J version), TA = −40 to +125°C (K version)

　　• 超低价车规级12V转5V LDO电源模块(R1524N)，具有耐压高(50V)，功耗低(standby 模式下0.1uA)的特点，且输出可选(1.8V~9V)，温度线性度良好(±60 ppm/°C)，低价打造低功耗车载空气净化器。

【R1524 Series】

Low Supply Current 36V Input 200mA Voltage Regulator

Product Specifications

The R1524 Series are voltage regulators featuring 36 V input voltage (absolute maximum rating: 50 V), low supply current (Typ. 2.2 µA) and high output voltage accuracy. As a protection feature, this device consists of an Output Short-circuit Protection Circuit, an Overcurrent Protection Circuit, and a Thermal Shutdown Circuit.

This regulator can be used under high temperature environment. The R1524 is offered in a 5-pin SOT-23-5, a 5-pin SOT-89-5, a 6-pin HSOP-6J, and an 8-pin HSOP-8E package. It is also offered in a 6-pin DFN(PLP)1820-6 package for consumer and industrial applications. This regulator can be used under high temperature environment. It offers the maximum operating temperature of 105°C for consumer applications, and 125°C for industrial and automotive applications. This product for industrial applications is characterized to −50°C, and operates in a wide temperature range from low temperature to high temperature.

FEATURES

● Input Voltage Range (Maximum Rating) ················ 3.5 V to 36 V (50 V)

● Operating Temperature Range ···························· −40°C to 105°C

● Supply Current················································· Typ. 2.2 µA

● Standby Current··············································· Typ. 0.1 µA

● Dropout Voltage ··············································· Typ. 0.6 V (IOUT = 200 mA, VOUT = 5.0 V)

● Output Voltage Range ······································· 1.8 V / 2.5 V / 2.8 V / 3.0 V / 3.3 V / 3.4V /

5.0 V / 5.5 V / 6.0 V / 6.4 V / 8.0 V / 8.5 V / 9.0 V

*Contact Ricoh sales representatives for other voltages.

● Output Voltage Accuracy···································· ±0.6% (Ta = 25°C)

● Output Voltage Temperature-Drift Coefficient ·········· Typ. ±60 ppm/°C

● Line Regulation················································ Typ. 0.01%/V (VSET + 1 V ≤ VIN ≤ 36 V)

● Built-in Output Short-circuit Protection Circuit ········· Typ. 80 mA

● Built-in Over-current Protection Circuit ·················· Typ. 350 mA

● Built-in Thermal Shutdown Circuit ························ Thermal Shutdown Temperature: Typ. 160°C

● Ceramic capacitors are recommended

to be used with this device ································ COUT = 0.1 μF or more

● Packages ······················································· SOT-23-5, SOT-89-5, HSOP-6J,DFN(PLP)1820-6, HSOP-8E

APPLICATIONS

● Power source for home appliances such as refrigerators, rice cookers, and electric hot-water pot.

● Power source for notebook PCs, digital TVs, cordless phones, and private LAN system.

● Power source for office equipment machines such as copiers, printers, facsimiles, scanners, and projectors.

APPLICATION INFORMATION

C1 (CIN), C2 (COUT) : 0.1 µF

TYPICAL CHARACTERISTICS

R1524x090B Dropout Voltage vs. Output Current

　　• 超低价车规级12V转5V LDO电源模块(R1524N)，具有耐压高(50V)，功耗低(standby 模式下0.1uA)的特点，且输出可选(1.8V~9V)，温度线性度良好(±60 ppm/°C)，低价打造低功耗车载空气净化器。

R1524 Series

Low Supply Current 36V Input 200mA Voltage Regulator

Product Specifications

The R1524 Series are voltage regulators featuring 36 V input voltage (absolute maximum rating: 50 V), low supply current (Typ. 2.2 µA) and high output voltage accuracy. As a protection feature, this device consists of an Output Short-circuit Protection Circuit, an Overcurrent Protection Circuit, and a Thermal Shutdown Circuit.

This regulator can be used under high temperature environment. The R1524 is offered in a 5-pin SOT-23-5, a 5-pin SOT-89-5, a 6-pin HSOP-6J, and an 8-pin HSOP-8E package. It is also offered in a 6-pin DFN(PLP)1820-6 package for consumer and industrial applications. This regulator can be used under high temperature environment. It offers the maximum operating temperature of 105°C for consumer applications, and 125°C for industrial and automotive applications. This product for industrial applications is characterized to −50°C, and operates in a wide temperature range from low temperature to high temperature.

FEATURES

APPLICATION INFORMATION

C1 (CIN), C2 (COUT) : 0.1 µF

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　　车载空气净化器，又叫车用空气净化器、汽车空气净化器，是指专用于净化汽车内空气中的PM2.5、有毒有害气体(甲醛、苯系物、TVOC等)、异味、细菌病毒等车内污染的空气净化设备。

　　车载净化器也叫车用净化器或车载空气净化器,通常由高压产生电路负离子发生器、微风扇、空气过滤器等系统组成。 它的工作原理如下：机器内的微风扇(又称通风机)使车内空气循环流动，污染的空气通过机内的PM2.5过滤网和活性炭滤芯后将各种污染物过滤或吸附，然后经过装在出风口的负离子发生器(工作时负离子发生器中的高压产生直流负高压)，将空气不断电离，产生大量负离子，被微风扇送出，形成负离子气流，达到清洁、净化空气的目的。

　　滤网型车载空气净化器

　　滤网型车载空气净化器可以有效净化汽车内的灰尘、甲醛、苯、细菌等有害物质。

　　静电集尘型车载空气净化器

　　静电集尘型车载空气净化器是需要与其它器材配合才能达到高效的净化效果，因为静电集尘型车载空气净化器并不能完全吸附并消除异味，也无法完全分解有毒化学气体。同时，其净化效果和净化效率会随着悬浮微粒的累积增加而递减，需要经常清洗集尘板以恢复其效果与效率，故维护成本较高。

　　臭氧车载空气净化器

　　臭氧车载空气净化器是工作原理是产生出来臭氧来净化车内空气，以达到改善车内空气质量的效果。虽然，臭氧对细菌有一定的效果，特别是针对胺、烟碱、细菌等。但在使用此类型车载空气净化器时，要适当注意车厢内臭氧的浓度，因为臭氧如果浓度过高时，会产生二次污染，对人体健康产生危害。

　　净离子群车载空气净化器

　　净离子群车载空气净化器使用净离子群发生器喷洒出独特、安全的净离子群,去除甲醛、苯、细菌、异味以及过敏原等;轿车专用车技，运用康达效应，使净离子群到达车厢内的每一角落，净化不遗角落;使用约长达17，500小时才需要换离子发生器。

　　水过滤车载空气净化器

　　水过滤 的原理主要模拟大自然的降雨过程，通常降雨的时候会产生雷电，这时候会有大量的臭氧产生，会对空气中的病毒和细菌进行杀灭，同时雨水对空气中的颗粒物进行湿沉降，所以雨后我们呼吸到的空气都是非常清新的没有污染的。水过滤车载空气净化器主要是通过涡轮风扇直接吸入到风槽里面这时银离子和负离子对空气进行杀菌消毒，然后再将空气排入水槽里面进行湿沉降，最后通过涡轮抽风机将水槽里面经过净化的空气排出，排出去的空气因为经过了水的湿沉降，所以空气中含有一定的水分，相当于一个自然的空气加湿器