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BL5918: Descriptionbl5918; File Size216KB，6 Pages; ManufacturerSHANGHAI

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BL59A18

离子型烟雾检测电路

离子型烟雾检测电路 BL59A18

烟雾检测

BL59A18 是一款用于离子型烟雾报警器中的烟雾探测芯片。通过与离子室和外围简

单电路的配合½用，½有烟雾存在时可产生特定的报警声光。同时该电路还具备通过

I/O 口互联实现区域共同报警的功½，以及½电压报警等功½。

特点

单片 CMOS 集成电路

电源电压范围½：6V-12V

½功耗，最大电源电流：8uA

工½温度范围：－10½60℃；

℃

检测输入端两侧有用于减少输入传输路径上的漏电流的保护输出端

可通过 I/O 脚与最多

个报警单元互连以实现共同报警

各引脚½具有 ESD 和 Latch Up 保护功½

封装½式为16 引线双列直插

管脚排列 (封装½式为16 脚DIP 封装)

Det.Comp.

Out

I/O

LowV Set

Strobe

LED

Vdd

Timing

Res.

Feedback

Guard1

DetectInput

Guard2

Sensitivity

Set

Osc Cap.

HORN1

HORN2

Vss

Figure 1

管脚排列

http://www.belling.com.cn

-1-

8/15/2006

Wrote by 2006

Total

6 Pages

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