MCZ145010EG Freescale Semiconductor, MCZ145010EG Datasheet - Page 9

• Manufacturer Part Number: MCZ145010EG
• Description: IC SMOKE DETECT PHOTOELEC 16SOIC
• Manufacturer: Freescale Semiconductor
• Type: Smoke Detectorr

Specifications of MCZ145010EG

• Input Type: Logic
• Output Type: Voltage
• Current - Supply: 12µA
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Lead Free Status / Rohs Status: Details

Sensors
Freescale Semiconductor
detectors, the MC145010 can be placed in a calibration
mode. In this mode, certain device pins are controlled/
reconfigured as shown in
calibration mode, pin 16 (Test) must be pulled below the V
To facilitate checking the sensitivity and calibrating smoke
Auxiliary Alarm(S),
And/or Auto-dialer
Remote Alarm(S),
Escape Light(S),
MC145010(s),
**C4 should be 22 µF if B1 is a carbon battery. C4 could be reduced to 1 µF when an alkaline battery is used.
!
* C2 and R13 are used for coarse sensitivity adjustment. Typical values are shown.
† R9 is for fine sensitivity adjustment (optional). If fixed resistors are used, R8 = 12 k, R10 is 5.6 k to 10 k, and R9 is eliminated.
100 µF
When R9 is used, noise pickup is increased due to antenna effects. Shielding may be required.
Values for R4, R5, and C6 may differ depending on type of piezoelectric horn used.
1.0 k
R12
To Other
C5
+
CURRENT
CALIBRATION
5.0 k
8.2 k
4.7 k
R9
R10
R8
0.047 µF
†
Table
4700 pF
IR
C1
C2*
Q1
IR EMITTER
R13*
4.7 TO 22
5. To place the part in the
R11 250 k
IR Detector
D3
R14
560 Ω
D2
1 TO 22 µF
Figure 8. Typical Battery-Powered Application
C4**
1
2
3
4
5
6
7
8
C1
C2
Detect
Strobe
V
IRED
I/O
Brass
DD
+
9.0 V
B1
SS
MC145010
pin with 100 µA 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.
clock cycle and strobe is always on (active low). Also, Low
Battery and supervisory tests are disabled in this mode.
D1
In the calibration mode, the IRED pulse happens at every
Low-supply
Feedback
Silver
Reverse Polarity
OSC
Test
LED
Trip
V
R1
SS
Protection
Circuit
16
15
14
13
12
11
10
9
1500 pF
2.2 M
R5
100 k
100 k
R4
!
0.01 µF
C3
R1
!
SW1
C6
Pushbutton
!
Test
10 M
R2
R3
470
D4
Visible
LED
Horn
X1
MC145010
R6
100 k
R7
47 k
9