參數(shù)資料
型號(hào): MC14468
廠商: Motorola, Inc.
英文描述: LONIZATION SMOKE DETECTOR IC WITH INTERCONNECT
中文描述: 電離煙霧報(bào)警器集成電路互連
文件頁(yè)數(shù): 3/8頁(yè)
文件大?。?/td> 266K
代理商: MC14468
3
Motorola Sensor Device Data
TIMING PARAMETERS
(C = 0.1
μ
F, R
bias
= 8.2 M
, V
DD
= 9.0 V, T
A
= 25
°
C, See Figure 6)
Characteristics
Symbol
Min
Typ#
Max
Units
Oscillator Period
No Smoke
Smoke
t
CI
1.34
32
1.67
40
2.0
48
s
ms
Oscillator Rise Time
t
r
8.0
10
12
ms
Horn Output
(During Smoke)
On Time
Off Time
PW
on
PW
off
120
60
160
80
208
104
ms
ms
LED Output
Between Pulses
On Time
t
LED
PW
on
32
8.0
40
10
48
12
s
ms
Horn Output
(During Low Battery)
On Time
Between Pulses
t
on
t
off
8.0
32
10
40
12
48
ms
s
# Data labelled “Typ’’ is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
Figure 1. Block Diagram
+
V
DD
LOW BATTERY
COMPARATOR
POWER–ON
RESET
+
V
DD
45 K
3
280 K
7
12
13
325 K
+
15
DETECT INPUT
14
LO–Z
16
HI–Z
V
DD
V
DD
8
11
10
5
LOW V SET
1
DETECT
COMPARATOR OUT
ALARM
LOGIC
DETECT
COMPARATOR
I/O
2
OSC
AND
TIMING
SILVER
BRASS
GUARD
AMP
STROBE OUT
4
LED
FEEDBACK
TO OTHER UNITS
V
DD = PIN 6
V
SS = PIN 9
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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