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MC14468

Features: • Ionization Type with OnChip FET Input Comparator• Piezoelectric Horn Driver• Guard Outputs on Both Sides of Detect Input• InputProduction Diodes on the Detect Input• LowBattery Trip Point, Internally Set, can be Altered Via External Resistor• Detect ...

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SeekIC No. : 004415344 Detail

MC14468: Features: • Ionization Type with OnChip FET Input Comparator• Piezoelectric Horn Driver• Guard Outputs on Both Sides of Detect Input• InputProduction Diodes on the Detect Inp...

MC14468 Data Sheet

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Part Number:
MC14468
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/27

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Product Details

Description



Features:

• Ionization Type with OnChip FET Input Comparator
• Piezoelectric Horn Driver
• Guard Outputs on Both Sides of Detect Input
• InputProduction Diodes on the Detect Input
• LowBattery 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
• PowerOn Reset Prevents False Alarms on Battery Change


Pinout

Connection Diagram


Specifications

Rating Symbol Value Unit
DC Supply Voltage VDD -0.5 to +12 V
Input Voltage, All Inputs Except Pin 8 VIN -0.25 to VDD + 0.25 V
DC Current Drain per Input Pin, Except Pin 15 = 1 mA Iin 10 mA
DC Current Drain per Output Pin Iout 30 mA
Operating Temperature Range IDD -10 to + 60 °C
Storage Temperature Range Tstg 55 to +125 °C
Reverse Battery Time tRB 5.0 s
* Maximum Ratings are those values beyond which damage to the device may occur.


Description

The MC14468, 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. MC14468 is designed to operate in smoke detector systems that comply with UL217 and UL268 specifications.


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