MC145011P Freescale Semiconductor, MC145011P Datasheet

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MC145011P

Manufacturer Part Number
MC145011P
Description
IC SMOKE DETECT PHOTOELEC 16-DIP
Manufacturer
Freescale Semiconductor
Type
Smoke Detectorr
Datasheet

Specifications of MC145011P

Input Type
Logic
Output Type
Logic
Current - Supply
12µA
Mounting Type
Through Hole
Package / Case
16-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Interface
-
Freescale Semiconductor
Technical Data
© Freescale Semiconductor, Inc., 2006. All rights reserved.
Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as may be required, to
permit improvements in the design of its products.
Photoelectric Smoke Detector IC
with I/O For Line-Powered
Applications
sophisticated very-low-power analog and digital circuitry. The IC is used with an in-
frared photoelectric chamber. Detection is accomplished by sensing scattered light
from minute smoke particles or other aerosols. When detection occurs, a pulsating
alarm is sounded via on-chip push-pull drivers and an external piezoelectric trans-
ducer.
diodes). Two external capacitors C1 and C2, C1 being the larger, determine the
gain settings. Low gain is selected by the IC during most of the standby state. Me-
dium gain is selected during a local-smoke condition. High gain is used during push
button test. During standby, the special monitor circuit which periodically checks for
degraded chamber sensitivity uses high gain, also.
for common signaling. An on-chip current sink provides noise immunity when the I/
O is an input. A local-smoke condition activates the short-circuit-protected I/O driv-
er, thereby signaling remote smoke to the interconnected units. Additionally, the I/
O pin can be used to activate escape lights, enable auxiliary or remote alarms, and/
or initiate auto-dialers.
ing a load current from the LED pin. The trip point is set using two external resistors.
The supply for the MC145011 must be a dc power source capable of supplying 35
mA continuously and 45 mA peak. When the MC145011 is in standby, an external
LED is continuously illuminated to indicate that the device is receiving power.
cal-smoke condition. A pulsating audible alarm with the LED illuminated indicates
a remote-smoke condition. A beep or chirp indicates a low-supply condition or de-
graded chamber sensitivity. A low-supply condition does not affect the smoke de-
tection capability if V
chamber sensitivity can be distinguished by performing a push button (chamber)
test. This circuit is designed to operate in smoke detector systems that comply with
UL217 and UL268 specifications.
Features
The CMOS MC145011 is an advanced smoke detector component containing
The variable-gain photo amplifier allows direct interface to IR detectors (photo-
The I/O pin, in combination with VSS, can be used to interconnect up to 40 units
While in standby, the low-supply detection circuitry conducts periodic checks us-
An extinguished LED accompanied by a pulsating audible alarm indicates a lo-
Operating Voltage Range: 6 to 12 V
Operating Temperature Range: -10 to 60°C
Average Standby Supply Current (Visible LED Illuminated): 20 mA
Power-On Reset Places IC in Standby Mode (Non-Alarm State)
Electrostatic Discharge (ESD) and Latch Up Protection Circuitry on All Pins
Chip Complexity: 2000 FETs, 12 NPNs, 16 Resistors, and 10 Capacitors
Pb-Free Packaging Designated by Suffix Code ED
DD
MCZ145011DW
MC145011ED
MC145011P
≥ 6 V. Therefore, the low-supply condition and degraded
Device
ORDERING INFORMATION
SOIC Package
Plastic Dip
Package
LINE-POWERED APPLICATIONS
STROBE
DETECT
BRASS
DETECTOR IC WITH I/O FOR
PHOTOELECTRIC SMOKE
Figure 1. Pin Connections
IRED
VDD
C1
C2
I/O
ED SUFFIX (PB-FREE)
MC145011
1
2
3
4
5
6
7
8
PLASTIC SOIC
CASE 751G-04
PLASTIC DIP
CASE 648-08
DW SUFFIX
P SUFFIX
Rev. 5.0, 11/2006
16
15
14
13
12
11
10
9
TEST
LOW-SUPPLY
TRIP
VSS
R1
OSC
LED
FEEDBACK
SILVER
MC145011

Related parts for MC145011P

MC145011P Summary of contents

Page 1

... Chip Complexity: 2000 FETs, 12 NPNs, 16 Resistors, and 10 Capacitors • Pb-Free Packaging Designated by Suffix Code ED ORDERING INFORMATION Device MC145011P MC145011ED MCZ145011DW 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., 2006. All rights reserved. ...

Page 2

... Archived by Freescale Semiconductor, Inc., 2009 AMP DETECT 12 OSC OSC Timing 13 R1 Logic 16 TEST 4 STROBE 15 LOW-SUPPLY TRIP (1) Table 1. Maximum Ratings (Voltages referenced Parameter DC Supply Voltage DC Input Voltage OSC, LOW-SUPPLY TRIP DC Input Current, per Pin DC Output Current, per Pin DC Supply Current, V and V Pins ...

Page 3

... Archived by Freescale Semiconductor, Inc., 2009 Table 2. Electrical Characteristics (T = -10 to 60°C Unless Otherwise Indicated, Voltages Referenced Characteristic Power Supply Voltage Range Supply Threshold Voltage, Low-Supply Alarm Average Operating Supply Current, Excluding the Visible LED Current (per Package) Peak Supply Current, Excluding the Visible LED Current ...

Page 4

... Archived by Freescale Semiconductor, Inc., 2009 Table 3. AC Electrical Characteristics (Reference Timing Diagram Figure 6 and C3 = 1500.0 pF 10.0 MΩ) No. Characteristic (1) 1 Oscillator Period 2 LED Status STROBE Pulse Width 6 IRED Pulse Period IRED Pulse Width 10 IRED Rise Time IRED Fall Time 11 SILVER and BRASS Modulation Period ...

Page 5

... Archived by Freescale Semiconductor, Inc., 2009 (Continued) Table 4. Pin Description Pin No. Pin Name 4 STROBE This output provides a strobed, regulated voltage referenced to V ± 0.2% °C maximum from - 10° to 60°C. The supply-voltage coefficient (line regulation) is ± 0.2%/V maximum from Strobe is tied to external resistor string R8, R9, and R10. ...

Page 6

... Archived by Freescale Semiconductor, Inc., 2009 1.04 1.02 1.00 0.98 0.96 6.0 7.0 VDD, Power Supply Voltage (V) Figure 3. AC Characteristics versus Supply 1.02 1.01 1.00 0. 0.98 - NOTE: Includes external component variations. See Figure 4. AC Characteristics versus Temperature 1.03 1.02 1.01 1.00 0.99 ...

Page 7

... Archived by Freescale Semiconductor, Inc., 2009 Sensors Freescale Semiconductor Figure 6. Standby Timing Diagram MC145011 7 ...

Page 8

... Archived by Freescale Semiconductor, Inc., 2009 MC145011 8 Figure 7. Smoke Timing Diagram Sensors Freescale Semiconductor ...

Page 9

... Archived by Freescale Semiconductor, Inc., 2009 μF 0.047 μF C2* V+ 4700 pF R14 560 Ω R8 8.2 k R11 250 k † R10 D1 4 DETECTOR R12 Emitter + C5 100 μ R13* Current 4 Other MC145011(S), Escape Light (S), Auxiliary Alarm (S), Remote Alarm (S), And/or Auto-dialer Values for R4, R5, and C6 may differ depending on type of piezoelectric horn used. ...

Page 10

... Archived by Freescale Semiconductor, Inc., 2009 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 Table 5 ...

Page 11

... ANODE 0. 10.55 8X 10.05 PIN'S NUMBER 16 1 PIN 1 INDEX 7.6 B 7.4 5 0.75 ˚ X45 0.25 Sensors Freescale Semiconductor PACKAGE DIMENSIONS NOTES SEATING PLANE STYLE 2: PIN 1. COMMON DRAIN 2. COMMON DRAIN 3. COMMON DRAIN 4. COMMON DRAIN 5. COMMON DRAIN 6. COMMON DRAIN 7. COMMON DRAIN 8. COMMON DRAIN 9. GATE 10 ...

Page 12

... Freescale Semiconductor product could create a situation where personal injury or death may occur. Should Buyer ...

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