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| 型号： | MCZ145010EGR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | IC SMOKE DETECT PHOTOELEC 16SOIC |
| 标准包装： | 1,000 |
| 类型： | 烟雾探测器 |
| 输入类型： | 光电 |
| 输出类型： | 电压 |
| 电流 - 电源： | 12µA |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 带卷 (TR) |
Sensors
10
Freescale Semiconductor
MC145010
Figure 9. Recommended PCB Layout
Table 5. 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 VDD.
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, two consecutive smoke detections are required for
ON (static high level) and two consecutive no-detections for “off” (static low level).
Pin 8
Pin 16
Pin 9
Pin 1
C1
R11
D2
R8
MOUNTED IN
CHAMBER
C2
R10
Do Not Run Any
Additional Traces
In This Region
C2
R14
NOTES:
Illustration is bottom view of layout using a Dip. Top view for SOIC layout is mirror image. Optional potentionmeter R9 is not illustrated.
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.
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