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。

　　器件优势

　　• 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

　　【车载空气净化器】

       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。

　　车载空气净化器产品特点

　　1)多重功效，超效净化

　　空气净化器拥有多重净化功能：负离子+超级活性炭。能够主动净化车内每个部位，能够有效杀害空气中的有害病菌、细菌，祛除灰尘、烟尘及异味。

　　2)杀菌抗病，拒绝流感

　　负离子能够有效的预防疾病，杀菌，改善肺功能，促进新陈代谢。茶树精油，是几个世纪以来澳洲土著居民的消炎杀菌灵药，它通过破坏细菌、病毒的细胞组织及能量源，能有效消灭车内的细菌病毒。

　　3)天然香薰，提神醒脑

　　柠檬茶树精油是澳洲独有的一种植物，稀有、珍贵。清新的柠檬香带有木质低调，提神醒脑，舒解压力，令人心情舒畅愉快。

　　4)加湿美肤，干燥不在

　　适当的湿度是健康生活的必备条件，开车的过程中容易因空调造成干燥、皮肤紧绷。喉咙咽干的现象。安程悠乐森空气净化器的加湿功能可改善干燥的车内环境，保持肌肤水润嫩滑，同时还能降低空气中的浮尘颗粒，去除静电。

　　5)空气接触，便捷易用

　　贴心空气触控设计，按键简单、易懂，轻松触动健康生活。简约杯型设计，放在汽车水杯位上，直接插在点烟器使用即可，不需要占用额外空间。实用轻巧，随取随用。

　　6)时尚设计，便捷应用

　　空气净化器产品外观设计前沿时尚，瓶盖采用施华洛世奇元素点缀而成，光彩夺目。为爱车带来独特装饰，尽享奢华品味。更有10款星座幸运颜色可选，满足不同个性要求。