TI-105 is a stand-alone sensor integrated controller, compromising a 5 V linear voltage regulator, a photoamplifier, two generators (8192 Hz and 4 MHz), a ROM, an error correction circuit and a digital unit.
The device’s programmable coefficients:
- Photoamplifier gain
- Measurements period (default mode)
- Measurements period (preparation to fire mode)
- Visible LED operation time
- IR LED operation time
- Measurements preparation time
- Number of successive “positive” measurements before switching into fire mode
- Standby time at loop reset
- Audio-frequency generator coefficients
Features
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Power supply range: 7-18 V
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Current consumption: 5 uA
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Battery state control
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Programmable measurement cycle time
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Programmable gain
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Optical smoke density calibration
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Low power protection
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ROM correction (one defective bit recovery)
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Two bits defect indication
