datasheet4u.com

900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Freescale Semiconductor Electronic Components Datasheet

MC145018 Datasheet

Low-Power CMOS Ionization Smoke Detector IC

No Preview Available !

MC145018 pdf
Archived by Freescale Semiconductor, Inc., 2009
Freescale Semiconductor
Technical Data
Low-Power CMOS
Ionization Smoke Detector IC with
Interconnect and Temporal
Horn Driver
The MC145018, when used with an ionization chamber and a small number
of external components, will detect smoke. When smoke is sensed, an alarm is
sounded via an external piezoelectric transducer and internal drivers. This circuit
is designed to operate in smoke detector systems that comply with UL217 and
UL268 specifications.
Features
• Ionization Type with On-Chip FET Input Comparator
• Piezoelectric Horn Driver
• Guard Outputs on Both Sides of Detect Input
• Input-Protection Diodes on the Detect Input
• Low-Battery Trip Point, Internally Set, can be Altered Via External Resistor
• Detect Threshold, Internally Set, can be Altered Via External Resistor
• Pulse Testing for Low Battery Uses LED for Battery Loading
• Comparator Output for Detect
• Internal Reverse Battery Protection
• Strobe Output for External Trim Resistors
• I/O Pin Allows Up to 40 Units to be Connected for Common Signaling
• Supports NFPA 72, ANSi 53.41, and ISO 8201
Audible Emergency Evacuation Signals
• Power-On Reset Places IC in Standby Mode
• Pb-Free Packaging Designated by Suffix Code ED
ORDERING INFORMATION
Device
Case No.
MC145018P
MC145018ED
648-08
Package
Plastic Dip
MC145018
Rev. 4.1, 09/2006
MC145018
IONIZATION SMOKE DETECTOR
IC WITH INTERCONNECT AND
TEMPORAL HORN DRIVER
P SUFFIX
ED SUFFIX (PB-FREE)
PLASTIC DIP
CASE 648-08
DETECT
COMP. OUT
I/O
LOW V SET
STROBE
OUT
LED
VDD
TIMING
RESISTOR
FEEDBACK
1
2
3
4
5
6
7
8
16 GUARD HI-Z
15 DETECT INPUT
14 GUARD LO-Z
13 SENSITIVITY SET
12 OSC CAPACITOR
11 SILVER
10 BRASS
9 VSS
Figure 1. Pin Assignment
Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as may be required,
to permit improvements in the design of its products.
© Freescale Semiconductor, Inc., 2007. All rights reserved.


Freescale Semiconductor Electronic Components Datasheet

MC145018 Datasheet

Low-Power CMOS Ionization Smoke Detector IC

No Preview Available !

MC145018 pdf
Archived by Freescale Semiconductor, Inc., 2009
VDD VDD
To Other Units
I/O FEEDBACK
28
45 K
LOW V SET
DETECT
COMP. OUT
3
1
SENSITIVITY 13
SET
325 K
STROBE OUT 4
Low Battery
+ Comparator
-
280 K
Detect
+ Comparator
-
15
Guard
Amp
+
Detect
Input
Lo-Z VDD
14
-
Alarm
Logic
Power-on
Reset
HI-Z
16
OSC
And
Timing
11
SILVER
10
BRASS
5 LED
VDD = Pin 6
VSS = Pin 9
12 7
VDD
Figure 2. Block Diagram
Table 1. Maximum Ratings(1)
(Voltages referenced to VSS)
Rating
DC Supply Voltage
Input Voltage, All Inputs Except Pin 8
DC Current Drain per Input Pin, Except Pin 15 = 1 mA
DC Current Drain per Output Pin
Operating Temperature Range
Storage Temperature Range
Reverse Battery Time
Symbol
VDD
VIN
I
I
TA
TSTG
tRB
Value
0.5 to + 15
0.25 to VDD + 0.25
10
30
10 to + 60
55 to + 125
5.0
Unit
V
V
mA
mA
°C
°C
s
1. Maximum Ratings are those values beyond which damage to the device may occur.
This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields; however, it is advised that
normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this high impedance circuit. For
proper operation it is recommended that Vin and Vout be constrained to the range VSS (Vin or Vout) VDD.
MC145018
2
Sensors
Freescale Semiconductor


Part Number MC145018
Description Low-Power CMOS Ionization Smoke Detector IC
Maker Freescale Semiconductor
Total Page 8 Pages
PDF Download
MC145018 pdf
MC145018 Datasheet PDF
[partsNo] view html
View PDF for Mobile








Similar Datasheet

1 MC145010 Photoelectric Smoke Detector IC Freescale Semiconductor
Freescale Semiconductor
MC145010 pdf
2 MC145011 Photoelectric Smoke Detector IC Freescale Semiconductor
Freescale Semiconductor
MC145011 pdf
3 MC145011 Photoelectric Smoke Detector with I/O Motorola
Motorola
MC145011 pdf
4 MC145012 Photoelectric Smoke Detector IC Freescale Semiconductor
Freescale Semiconductor
MC145012 pdf
5 MC145017 Low-Power CMOS Ionization Smoke Detector IC Freescale Semiconductor
Freescale Semiconductor
MC145017 pdf
6 MC145018 LONIZATION SMOKE DETECTOR IC WITH INTERCONNECT AND TEMPORAL HORN DRIVER Motorola
Motorola
MC145018 pdf
7 MC145018 Low-Power CMOS Ionization Smoke Detector IC Freescale Semiconductor
Freescale Semiconductor
MC145018 pdf
8 MC14501UB Triple Gate Motorola
Motorola
MC14501UB pdf





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy