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| 型号： | MC145011P |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC SMOKE DETECT PHOTOELEC 16-DIP |
| 标准包装： | 25 |
| 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： | 通孔 |
| 封装/外壳： | 16-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 16-PDIP |
| 包装： | 管件 |
MC145011
Rev. 5.0, 11/2006
Freescale Semiconductor
Technical Data
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.
Archived by Freescale Semiconductor, Inc., 2009
Archive
Information
Archive
Information
Photoelectric Smoke Detector IC
with I/O For Line-Powered
Applications
The CMOS MC145011 is an advanced smoke detector component containing
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.
The variable-gain photo amplifier allows direct interface to IR detectors (photo-
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.
The I/O pin, in combination with VSS, can be used to interconnect up to 40 units
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.
While in standby, the low-supply detection circuitry conducts periodic checks us-
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.
An extinguished LED accompanied by a pulsating audible alarm indicates a lo-
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 VDD ≥ 6 V. Therefore, the low-supply condition and degraded
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
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
ORDERING INFORMATION
Device
Package
MC145011P
Plastic Dip
MC145011ED
MCZ145011DW
SOIC Package
MC145011
P SUFFIX
ED SUFFIX (PB-FREE)
PLASTIC DIP
CASE 648-08
DW SUFFIX
PLASTIC SOIC
CASE 751G-04
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
C1
C2
DETECT
STROBE
VDD
IRED
I/O
BRASS
TEST
LOW-SUPPLY
TRIP
VSS
R1
OSC
LED
FEEDBACK
SILVER
Figure 1. Pin Connections
PHOTOELECTRIC SMOKE
DETECTOR IC WITH I/O FOR
LINE-POWERED APPLICATIONS
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| MC14578P | IC SMOKE COMPARATOR MPWR 16-DIP |
| MC14600P | IC ALARM GENERAL MONO 16-DIP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC145012DW | 功能描述:IC SMOKE DETECT WITH I/O 16SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 传感器和探测器接口 系列:- 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 类型:触控式传感器 输入类型:数字 输出类型:数字 接口:JTAG，串行 电流 - 电源:100µA 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 |
| MC145012DWR2 | 制造商:Rochester Electronics LLC 功能描述:PHOTO SMKE DET/NFPA TONE - Bulk 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
| MC145012ED | 功能描述:烟雾报警器 SM DETECTOR W/NFPA TONE RoHS:否 制造商:ELMOS Semiconductor 描述/功能:Smoke detector controller 感应方式:Photoelectric 工作电源电压:24 V 输出信号类型: |
| MC145012EG | 功能描述:光电传感器 PHOTO SMKE DET/NFPA TONE RoHS:否 制造商:Omron Industrial 感应方式:Retroreflective 感应距离:2 m 光源:Infrared LED 放大器类型: 连接:Prewired Cable 输出配置:Light ON |
| MC145012EGR2 | 功能描述:光电传感器 PHOTO SMKE DET/NFPA TONE RoHS:否 制造商:Omron Industrial 感应方式:Retroreflective 感应距离:2 m 光源:Infrared LED 放大器类型: 连接:Prewired Cable 输出配置:Light ON |
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