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Photoelectric Smoke Detector AFE IC

封装信息

CAD 模型: 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

环境和出口类别

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
ECCN (US) EAR99
HTS (US) 8542.39.0090
RoHS (RAA239101A2GNP#HA0) 下载

产品属性

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

描述

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.