- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄359155 > MCZ145011DW (飛思卡爾半導(dǎo)體(中國(guó))有限公司) Photoelectric Smoke Detector IC with I/O For Line-Powered Applications PDF資料下載
參數(shù)資料
| 型號(hào)： | MCZ145011DW |
| 廠商： | 飛思卡爾半導(dǎo)體(中國(guó))有限公司 |
| 英文描述： | Photoelectric Smoke Detector IC with I/O For Line-Powered Applications |
| 中文描述： | 光電感煙探測(cè)器芯片與I /線路O型供電應(yīng)用 |
| 文件頁(yè)數(shù)： | 10/12頁(yè) |
| 文件大小： | 253K |
| 代理商： | MCZ145011DW |
Sensors
10
Freescale Semiconductor
MC145011
CALIBRATION
To facilitate checking the sensitivity and calibrating smoke
detectors, the MC145011 can be placed in a calibration
mode. In this mode, certain device pins are controlled/
reconfigure as shown in
Table 5
. To place the part in the
calibration 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 rate is increased
to one for every OSC cycle. Also, Strobe is always active low.
Figure 9. Recommended PCB Layout
Table 5. Configuration of Pins in the Calibration Mode
Pin
Description
Comment
7
I/O
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
.
15
LOW-SUPPLY TRIP
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.
10
FEEDBACK
Driving this input high enables hysteresis (10% gain increase) in the photo amp; pin 15 must be low.
12
OSC
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.
9
SILVER
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.
8
BRASS
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 bottomview of layout using a DIP. Top view for SOIC layout is mrror image.
Optional potentiometer R9 is not included.
Drawing is not to scale.
Leads on D1, R11, R8, and R10 and their associated traces must be kept as short as possible.
This practice mnimzes noise pick up.
Pin 3 must be decoupled fromall other traces.
Pin 8
Pin 16
Pin 9
Pin 1
C1
R11
D2
R8
MOUNTED IN
CHAMBER
C
R
Do Not Run Any
Additional Traces
In This Region
C
R14
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MCZ145017EG | Low-Power CMOS Ionization Smoke Detector IC with Temporal Pattern Horn Driver |
| MCZ146010EG | Low Power CMOS Photoelectric Smoke Detector IC |
| MCZ146012EG | Low Power CMOS Photoelectric Smoke Detector IC |
| MCZ33099CEG | Adaptive Alternator Voltage Regulator |
| MCZ33198EF | Automotive High-Side TMOS Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCZ145012EG | 功能描述:煙霧報(bào)警器 PHOTO SMKE DET/NFPA TONE 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(hào)類型: |
| MCZ145012EG/R2 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Photoelectric Smoke Detector IC with I/O and Temporal Pattern Horn Driver |
| MCZ145012EGR2 | 功能描述:煙霧報(bào)警器 PHOTO SMKE DET/NFPA 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(hào)類型: |
| MCZ145017EG | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Low-Power CMOS Ionization Smoke Detector IC with Temporal Pattern Horn Driver |
| MCZ145017EGR2 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Low-Power CMOS Ionization Smoke Detector IC with Temporal Pattern Horn Driver |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。