If you are creating a smoke detector, carbon monoxide (CO) detector or security application, we offer a large portfolio of low-power and cost-effective ICs with a variety of features to meet your design’s requirements. These mix-and-match solutions include low-power ionization and photoelectric smoke detector ICs, CO detector ICs and stand-alone horn driver ICs. Our global technical support team is also available to assist you with your smoke detector design.
Smoke Detector ICs
Complete Your Design with These Related Products
CO Detector ICs
These low-power companion devices provide all the necessary analog, interface, and power management functions to build a microcontroller-based CO or toxic gas detector, including:
- Power management system
- Boost regulator
- High-performance op amp
- Microcontroller voltage regulator
- Piezoelectric horn driver
- LED driver
- Bidirectional interconnect
Horn Driver ICs
Ranging from simple to more highly integrated solutions, our horn driver ICs can be used to drive piezoelectric horns in safety, security, toys and other applications.
- SOIC or PDIP package
- Low-voltage horn driving
- Low-current, low-power operation
- Charge pump
- Power good indicator
- Boost switcher
- LDO
- LED driver
- Low battery indicator
- Brownout detection
- Interconnect for sounding multiple connected units
- Photoelectric Smoke Detector ICs
- Ionization Smoke Detector ICs
- Ionization Smoke Detector Front Ends
- Co Detector ICs
- Horn Driver ICs
View All Parametrics
| Product | Status | Automotive Recommended | 5K Pricing | Horn Driver Alarm Pattern | Low Battery Detect | Chamber Test | Alarm Interconnect | Sensitivity Timer | Internal POR | Alternate Diagnostics Mode | Operating Temperature (°C) | Operating Voltage (Vdc) | Packages |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RE46C140 | In Production | No | $0.60 | NFPA Temporal | Yes | Yes | Yes | Yes | Yes | No | -25 to 75 | 6V to 12V | 16/PDIP, 16/PDIP 300mil, 16/SOIC |
| RE46C141 | In Production | No | $0.60 | NFPA Temporal | Yes | Yes | Yes | No | Yes | No | -25 to 75 | 6V to 12V | 16/PDIP, 16/SOIC |
| RE46C143 | In Production | No | $0.60 | Continuous Tone | Yes | Yes | Yes | No | Yes | No | -25 to 75 | 6V to 12V | 16/PDIP, 16/SOIC |
| RE46C144 | In Production | No | $0.60 | Continuous Tone | Yes | Yes | Yes | Yes | Yes | No | -25 to 75 | 6V to 12V | 16/PDIP, 16/PDIP 300mil, 16/SOIC |
| RE46C145 | In Production | No | $0.76 | NFPA Temporal | Yes | Yes | Yes | Yes | Yes | Yes | -25 to 75 | 6V to 12V | 16/PDIP, 16/SOIC |
| RE46C165 | In Production | No | Call for pricing | NFPA Temporal | Yes | Yes | Yes | Yes | Yes | Yes | -25 to 75 | 6V to 12V | 16/PDIP, 16/SOIC |
| RE46C166 | In Production | No | $0.71 | Continuous Tone | Yes | Yes | Yes | Yes | Yes | Yes | -25 to 75 | 6V to 12V | 16/PDIP, 16/SOIC |
| RE46C167 | In Production | No | Call for pricing | NFPA Temporal | Yes | Yes | Yes | Yes | Yes | Yes | -25 to 75 | 6V to 12V | 16/PDIP, 16/SOIC |
| RE46C168 | In Production | No | Call for pricing | Continuous Tone | Yes | Yes | Yes | Yes | Yes | Yes | -25 to 75 | 6V to 12V | 16/PDIP, 16/SOIC |
| RE46C190 | In Production Consider: RE46C191 | No | $0.94 | NFPA Temporal or Continuous Tone | Yes | Yes | Yes | Yes | Yes | No | -10 to 60 | 2V to 5V | 16/SOIC |
| RE46C191 | In Production | No | $0.94 | NFPA Temporal or Continuous Tone | Yes | Yes | Yes | Yes | Yes | No | -10 to 60 | 2V to 5V | 16/SOIC, 20/SSOP |
| RE46C194 | In Production | No | $0.88 | NFPA Temporal or Continuous Tone | Yes | Yes | Yes | Yes | Yes | No | 0 to 60 | 2V to 5V | 16/SOIC |
| RE46C200 | In Production | No | $0.81 | NFPA Temporal or Continuous Tone | Yes | Yes | Yes | Yes | Yes | No | -10 to 60 | 7V to 12V | 14/PDIP, 14/SOIC |
| RE46C201 | In Production | No | $0.81 | NFPA Temporal or Continuous Tone | Yes | Yes | Yes | Yes | Yes | No | -10 to 60 | 7V to 12V | 14/SOIC |
View All Parametrics
| Product | Status | Automotive Recommended | 5K Pricing | Horn Driver Alarm Pattern | Low Battery Detect | Reverse Battery Protection | Alarm Interconnect | Sensitivity Timer | Powerup Low Battery Test | Operating Temperature (°C) | Packages |
|---|---|---|---|---|---|---|---|---|---|---|---|
| RE46C120 | In Production | No | $0.59 | NFPA Temporal or Continuous Tone | Yes | Yes | No | No | No | -10 to 60 | 16/PDIP |
| RE46C121 | In Production | No | $0.54 | NFPA Temporal | Yes | Yes | Yes | No | No | -10 to 60 | 16/PDIP |
| RE46C122 | In Production | No | $0.57 | NFPA Temporal | Yes | Yes | Yes | Yes | Yes | -10 to 60 | 16/PDIP |
| RE46C126 | In Production | No | $0.59 | Continuous Tone | Yes | Yes | Yes | No | No | -10 to 60 | 16/PDIP |
| RE46C127 | In Production | No | $0.63 | Continuous Tone | Yes | Yes | Yes | Yes | No | -10 to 60 | 16/PDIP |
| RE46C129 | In Production | No | Call for pricing | Continuous Tone | Yes | Yes | Yes | No | Yes | -10 to 60 | 16/PDIP |
| RE46C152 | In Production | No | $0.54 | NFPA Temporal or Continuous Tone | Yes | Yes | Yes | Yes | Yes | -10 to 60 | 16/PDIP |
| RE46C162 | In Production | No | Call for pricing | NFPA Temporal or Continuous Tone | Yes | Yes | Yes | Yes | Yes | -10 to 60 | 16/PDIP |
| RE46C163 | In Production | No | Call for pricing | NFPA Temporal or Continuous Tone | Yes | Yes | Yes | Yes | Yes | -10 to 60 | 16/PDIP |
| RE46C180 | In Production | No | $0.83 | NFPA Temporal or Continuous Tone | Yes | No | Yes | Yes | Yes | -10 to 60 | 16/SOIC, 16/PDIP |
| RE46C181 | In Production | No | $0.90 | NFPA Temporal | Yes | No | Yes | Yes | Yes | -10 to 60 | 16/PDIP |
View All Parametrics
| Product | Status | 5K Pricing | Number of Outputs | Vpos to Vneg Differential Voltage (V) Min Value | Over Voltage Lockout (OVLO) | Power GOOD | Int/Ext FET | Applications | Junction Temp. Range (°C) | Product type | Latch off | UNLO | Auto Retry | FAULT | POR | No of PWRGD | Foldback Current Limit | Oja (C/W) | Packages |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MCP18480 | In Production | $4.59 | 1 | -0.3 to +15.0 V | adjustable threshold | adjustable polarity/adjustable delay | External | 48V Telecom/Datacom Optical Switch Bus/Backplane | -40°C to +85°C | adjustable threshold | 20/PDIP, 20/SSOP | ||||||||
| MIC2085 | Mature Product | $3.63 | Low Voltage (<16V) | Yes | Yes | Yes | Yes | 112 | 16/QSOP | ||||||||||
| MIC2342 | In Production | $5.04 | Compact-PCI/PCI-X/PCI-Express | Yes | 4 | 4 | 76.8 | 48/TQFP | |||||||||||
| MIC2582 | In Production | $2.46 | Low Voltage (<16V) | Yes | Yes | 163 | 8/SOIC | ||||||||||||
| MIC2583 | In Production | $2.88 | Low Voltage (<16V) | Yes | Yes | Yes | 1 Active High | 112 | 16/QSOP | ||||||||||
| MIC2583R | In Production | $2.88 | Low Voltage (<16V) | Yes | Yes | Yes | 1 Active High | 112 | 16/QSOP | ||||||||||
| MIC2584 | In Production | $4.69 | Low Voltage (<16V) | Yes | Yes | Yes | 99.1 | 16/TSSOP | |||||||||||
| MIC2585-2 | In Production | Call for pricing | Low Voltage (<16V) | Yes | Yes | Yes | 2 Active High | 83.8 | Please call for package information | ||||||||||
| MIC2587 | In Production | $2.85 | High Voltage (>16V) | Yes | 1 Active Low | Yes | 160 | 8/SOIC | |||||||||||
| MIC2591B | In Production | $12.64 | Compact-PCI/PCI-X/PCI-Express | Yes | 2 | 1 Active Low | 56.5 | 48/TQFP |
View All Parametrics
| Product | Status | Automotive Recommended | 5K Pricing | VDD Range (V) | Nominal Boost Voltage(V) | Voltage Regulator | Brown Out | Horn Driver | LED Driver | Interconnect | OP Amp Offset (mV) | OP Amp Bandwidth kHz | Reference Voltage (mV) | Operating Temperature (°C) | Packages |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RE46C800 | In Production | No | $0.72 | 2V to 12V | 9.8 | 3.3V | Yes | Yes | Yes | Yes | 1.00 | 10.00 | 300.00 | -10 to 60 | 20/SSOP |
| RE46C803 | In Production | No | $0.70 | 2V to 3V | 9.7 | 3.3V | No | Yes | Yes | No | 1.00 | 10.00 | 300.00 | -10 to 60 | 20/SSOP |
View All Parametrics
| Product | Status | Automotive Recommended | 5K Pricing | Operating Voltage (Vdc) | LED Driver | Voltage Regulator | Low Battery Detection | Interconnect | Power Good | Brown Out | Charge Pump | Inductive Boost | Operating Temperature (°C) | Packages |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RE46C100 | In Production | No | $0.33 | 6V to 16V | No | No | No | No | No | No | No | -40 to 85 | 8/DFN, 8/SOIC, 8/PDIP | |
| RE46C101 | In Production | No | $0.37 | 6V to 16V | Yes | No | No | No | No | No | No | 0 to 50 | 8/PDIP, 8/SOIC | |
| RE46C104 | In Production | No | $0.71 | 4V to 8V | No | No | No | No | No | Yes | No | 0 to 50 | 14/SOIC, 14/PDIP | |
| RE46C105 | In Production | No | $0.71 | 6V to 12V | Yes | 3.3V or 5V | Yes | No | No | Yes | No | No | -40 to 85 | 14/SOIC 150mil, 14/PDIP 300mil, 14/SOIC, 14/PDIP |
| RE46C107 | In Production | No | $0.84 | 2V to 5V | Yes | 3V or 3.3V | Yes | No | No | Yes | No | Yes | 0 to 50 | 16/SOIC 150mil, 16/SOIC, 16/PDIP |
| RE46C108 | In Production | No | $0.60 | 6V to 12V | No | 3.3V or 5V | No | No | No | Yes | No | No | -40 to 85 | 8/SOIC, 8/PDIP |
| RE46C109 | In Production | No | $1.15 | 6V to 12V | No | 3V | Yes | Yes | Yes | Yes | Yes | No | -40 to 85 | 16/SOIC, 16/PDIP |
| RE46C117 | In Production | No | $0.84 | 2V to 5V | No | No | No | No | Yes | No | Yes | 0 to 50 | 8/SOIC, 8/PDIP | |
| RE46C119 | In Production | No | $1.15 | 6V to 12V | No | 3V | Yes | Yes | Yes | No | Yes | No | -40 to 85 | 16/SOIC 150mil, 16/SOIC, 16/PDIP |
| RE46C317 | In Production | No | $0.72 | 2V to 5V | No | No | No | No | No | No | Yes | -10 to 60 | 8/SOIC, 8/PDIP | |
| RE46C318 | In Production | No | $0.72 | 2V to 5V | No | No | No | No | No | No | Yes | -10 to 60 | 8/SOIC, 8/PDIP |
