Package Information
| CAD Model: | View CAD Model |
| Pkg. Type: | QFN |
| Pkg. Code: | LKY |
| Lead Count (#): | 32 |
| Pkg. Dimensions (mm): | 3.99 x 3.99 x 9.00 |
| Pitch (mm): | 0.4 |
Environmental & Export Classifications
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| ECCN (US) | EAR99 |
| HTS (US) | 8542.39.0090 |
| RoHS (RAA239101A2GNP#HA0) | Download |
Product Attributes
| Lead Count (#) | 32 |
| Carrier Type | Reel |
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| Pb Free Category | Pb-Free 100% Matte Tin Plate w/Anneal-e3 |
| Country of Assembly | MALAYSIA |
| Country of Wafer Fabrication | TAIWAN |
| Adj. Analog Gain | 2 - 160 |
| Automotive Qual. | No |
| Function | Photoelectric AFE |
| Interface | SPI, GPIO |
| Length (mm) | 4 |
| MOQ | 6000 |
| Pitch (mm) | 0.4 |
| Pkg. Dimensions (mm) | 4.0 x 4.0 x 9.00 |
| Pkg. Type | QFN |
| Qualification Level | Standard |
| Requires Terms and Conditions | Does not require acceptance of Terms and Conditions |
| Resolution (bits) | 10 |
| Sample Rate Max (KHz) | 100 |
| Supply Voltage (V) | 9 - 9, 3 - 5 |
| Temp. Range (°C) | -40 to +125°C |
| Thickness (mm) | 9 |
| Width (mm) | 4 |
Resources for RAA239101
Description
The RAA239101 is a low-power Analog Front-End (AFE) IC; combined with a microcontroller, photoelectric emitter/detector(s), horn, and minimal external components, it forms a complete smoke detector.
The IC operates from a 3V to 5V or 9V battery and has an LDO to provide power to a microcontroller. The battery-check feature can be used to signal an alarm when the battery is low.
The RAA239101 provides a driver that can switch between two LEDs to pulse the smoke detection LED emitters with a DAC adjustable current. Two photodiode receiver channels with programmable gain amplification using an ADC allow the detection of smoke by sensing the LED light scattered off of smoke in a detection chamber.