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Smoke Detector IC MC

Smoke Detector IC MC

(Smoke Detector IC)MC145010DW D/C:(Smoke Detector IC)MC145010DW Package:(Smoke Detector IC)MC145010DW SOP, 16 Lead SOICW Model Number:(Smoke Detector IC)MC145010DW Type:Drive IC, Smoke Detector Brand Name:Original Brand The MC145010 is an advanced smoke detector component containingsophisticated very-low-power analog and digital circuitry. The IC is used with aninfrared photoelectric chamber. Detection is accomplished by sensing scatteredlight from minute smoke particles or other aerosols. When detection occurs, apulsating alarm is sounded via on-chip push-pull drivers and an externalpiezoelectric transducer. The variable-gain photo amplifier allows direct interface to IR detectors(photodiodes). Two external capacitors, C1 and C2, C1 being the larger, determinethe gain settings. Low gain is selected by the IC during most of the standby state.Medium gain is selected during a local-smoke condition. High gain is used duringpush button test. During standby, the special monitor circuit which periodicallychecks for degraded chamber sensitivity uses high gain, also. The I/O pin, in combination with VSS, can be used to interconnect up to 40 unitsfor 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/Odriver, thereby signaling remote smoke to the interconnected units. Additionally, theI/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 checksusing a pulsed load current from the LED pin. The trip point is set using two externalresistors. The supply for the MC145010 can be a 9 V battery.A visible LED flash accompanying a pulsating audible alarm indicates a local-smoke condition. A pulsating audible alarm with no LED flash indicates a remote-smoke condition. A beep or chirp occurring virtually simultaneously with an LEDflash indicates a low-supply condition. A beep occurring half-way between LEDflashes indicates degraded chamber sensitivity. A low-supply condition does notaffect the smoke detection capability if VDD ≥ 6 V. Therefore, the low-supplycondition and degraded chamber sensitivity can be further distinguished byperforming a push button (chamber) test.

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Details

(Smoke Detector IC)MC145010DW

20CM*20CM*20CM

D/C:(Smoke Detector IC)MC145010DW

Package:(Smoke Detector IC)MC145010DW SOP, 16 Lead SOICW

Model Number:(Smoke Detector IC)MC145010DW

Type:Drive IC, Smoke Detector

Brand Name:Original Brand

Place of Origin:Guangdong, China (Mainland)

Temp. Range:-55 to +125°C

Case No:751G-04

Operating Voltage Range:6 to 12 V

Operating Temperature Range:- 10 to 60°C

Average Supply Current:12 uA

Chip Complexity:2000 FETs, 12 NPNs, 16 Resistors, and 10 Capacitors

Application:an advanced smoke detector component containing

Shipping by:DHL\Fedex\EMS\TNT


The  MC145010 is an advanced smoke detector component containingsophisticated very-low-power analog and digital circuitry. 

The IC is used with aninfrared photoelectric chamber. 

Detection is accomplished by sensing scatteredlight from minute smoke particles or other aerosols. 

When detection occurs, apulsating alarm is sounded via on-chip push-pull drivers and an externalpiezoelectric transducer.

The variable-gain photo amplifier allows direct interface to IR detectors(photodiodes). 

Two external capacitors, C1 and C2, C1 being the larger, determinethe gain settings. 

Low gain is selected by the IC during most of the standby state.Medium gain is selected during a local-smoke condition. 

High gain is used duringpush button test. During standby, the special monitor circuit which periodicallychecks for degraded chamber sensitivity uses high gain, also.

The I/O pin, in combination with VSS, can be used to interconnect up to 40 unitsfor 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/Odriver, thereby signaling remote smoke to the interconnected units. 

Additionally, theI/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 checksusing a pulsed load current from the LED pin. 

The trip point is set using two externalresistors. 

The supply for the MC145010 can be a 9 V battery.A visible LED flash accompanying a pulsating audible alarm indicates a local-smoke condition. 

A pulsating audible alarm with no LED flash indicates a remote-smoke condition. 

A beep or chirp occurring virtually simultaneously with an LEDflash indicates a low-supply condition.

A beep occurring half-way between LEDflashes indicates degraded chamber sensitivity. 

A low-supply condition does notaffect the smoke detection capability if VDD ≥ 6 V. 

Therefore, the low-supplycondition and degraded chamber sensitivity can be further distinguished byperforming a push button (chamber) test.



(Smoke Detector IC)MC145010DW




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As one of the leading manufacturers and suppliers of Smoke Detector IC MC in Shenzhen, China, All New Semi Co has been dedicated to Smoke Detector IC MC designing and editing for over 10 years. Our products of equipment can be wildly used in networking, smart home project, etc. If you are interested in it, please feel free to get customized bulk product made in China with us.
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