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High-Performance Power and Hall-Effect Sensor ICs
Smoke Detector ICs 
| Part Number | Sensor Type | Reduced Sensitivity Timer | Horn Pattern | Supply Voltage (VDC) | Reverse Battery Protection | Temperature Range (°C) | Packages | Features |
|---|---|---|---|---|---|---|---|---|
| A5303 | Photo | Yes | Temporal (T3) | 2.3 to 5.5 | — | -20 to 85 | TSSOP-20 | |
| A5348 | Ion | Yes | Continuous Pulsing | 6 to 12 | Yes | -10 to 60 | DIP-16 | |
| A5349 | Ion | Yes | Continuous Pulsing | 6 to 12 | — | -10 to 60 | DIP-16 | For AC-powered application only |
| A5364 | Ion | — | Temporal (T3) | 6 to 12 | Yes | -10 to 60 | DIP-16 | |
| A5367 | Ion | Yes | Temporal (T3) | 6 to 12 | Yes | -10 to 60 | DIP-16 | |
| A5358 | Photo | Yes | Continuous Pulsing | 6 to 12 | — | -25 to 75 | DIP-16, SOIC-16 | Warns on degraded chamber sensitivity |
| A5366 | Photo | Yes | Temporal (T3) | 6 to 12 | — | -25 to 75 | DIP-16, SOIC-16 | Warns on degraded chamber sensitivity |
Common features
All devices include:
- Maximum supply current of 9 µA at 9 V supply
- Piezo horn driver
- Interconnect feature: alarm condition on one interconnected device causes alarm indication on all other interconnected devices
- Low battery alert signal