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參數(shù)資料
| 型號： | MC145010 |
| 廠商： | Motorola, Inc. |
| 英文描述： | Photoelectric Smoke Detector With I/O(帶I/O口的光電煙霧檢測器) |
| 中文描述： | 光電感煙探測器的I / O（帶的I / O口的光電煙霧檢測器） |
| 文件頁數(shù)： | 10/12頁 |
| 文件大?。?/td> | 234K |
| 代理商： | MC145010 |
10
Motorola Sensor Device Data
CALIBRATION
To facilitate checking the sensitivity and calibrating smoke
detectors, the MC145010 can be placed in a calibration
mode. In this mode, certain device pins are controlled/recon-
figured as shown in Table 1. To place the part in the calibra-
tion mode, pin 16 (Test) must be pulled below the V
SS
pin
with 100
μ
A continuously drawn out of the pin for at least one
cycle on the OSC pin. To exit this mode, the Test pin is
floated for at least one OSC cycle.
In the calibration mode, the IRED pulse happens at every
clock cycle and strobe is always on (active low). Also, Low
Battery and supervisory tests are disabled in this mode.
Table 1. Configuration of Pins in the Calibration Mode
Description
Pin
Comment
I/O
7
Disabled as an output. Forcing this pin high places the photo amp output on pin 1 or 2, as determined by
Low–Supply Trip. The amp’s output appears as pulses and is referenced to V
DD
.
Low–Supply Trip
15
If the I/O pin is high, pin 15 controls which gain capacitor is used. Low: normal gain, amp output on pin 1.
High: supervisory gain, amp output on pin 2.
Feedback
10
Driving this input high enables hysteresis (10% gain increase) in the photo amp; pin 15 must be low.
OSC
12
Driving this input high brings the internal clock high. Driving the input low brings the internal clock low. If
desired, the RC network for the oscillator may be left intact; this allows the oscillator to run similar to the
normal mode of operation.
Silver
9
This pin becomes the smoke comparator output. When the OSC pin is toggling, positive pulses indicate
that smoke has been detected. A static low level indicates no smoke.
Brass
8
This pin becomes the smoke integrator output. That is, 2 consecutive smoke detections are required for
“on” (static high level) and 2 consecutive no–detections for “off” (static low level).
NOTES:Illustration is bottom view of layout using a DIP. Top view for SOIC layout is mirror image.
Optional potentiometer R9 is not included.
Drawing is not to scale.
Leads on D2, R11, R8, and R10 and their associated traces must be kept as short as possible.
This practice minimizes noise pick up.
Pin 3 must be decoupled from all other traces.
Figure 6. Recommended PCB Layout
DO NOT RUN ANY
ADDITIONAL TRACES
IN THIS REGION
PIN 8
PIN 16
PIN 9
PIN 1
C1
R14
R11
D2
R8
CHAMBER
C
R
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC145010DW | 功能描述:IC SMOKE DETECT WITH I/O 16SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關(guān)文件:Automotive Product Guide 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:管件 |
| MC145010DWR2 | 制造商:Rochester Electronics LLC 功能描述:SMOKE DET, PHOTO WITH I/O - Bulk |
| MC145010ED | 功能描述:煙霧報警器 PHOTO SM DETECTOR RoHS:否 制造商:ELMOS Semiconductor 描述/功能:Smoke detector controller 感應(yīng)方式:Photoelectric 工作電源電壓:24 V 輸出信號類型: |
| MC145010EG | 功能描述:光電傳感器 SMOKE DET PHOTO WITH I/ RoHS:否 制造商:Omron Industrial 感應(yīng)方式:Retroreflective 感應(yīng)距離:2 m 光源:Infrared LED 放大器類型: 連接:Prewired Cable 輸出配置:Light ON |
| MC145010EGR2 | 功能描述:光電傳感器 SMOKE DET PHOTO RoHS:否 制造商:Omron Industrial 感應(yīng)方式:Retroreflective 感應(yīng)距離:2 m 光源:Infrared LED 放大器類型: 連接:Prewired Cable 輸出配置:Light ON |
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