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BL59A66 데이터시트 PDF




BELLING에서 제조한 전자 부품 BL59A66은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 BL59A66 기능
기능 Smoke Detector
제조업체 BELLING
로고 BELLING 로고


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BL59A66 데이터시트, 핀배열, 회로
BL59A66 datasheet
1. Introduction:
The BL59A66 is a low-current BiCMOS circuit providing all of the features for a photoelectric
type smoke detector. BL59A66 can be used in conjunction with an infrared photoelectric chamber to
sense scattered light from smoke particles. Special features are incorporated in the design to facilitate
calibration and testing of the finished detector.
2.1 Applied Area:
Photoelectric Type Smoke Detector System
2.2 Features:
2.2.1 6 V to 12 V Operating Voltage Range
2.2.2 Internal Timer & Control for Reduced Sensitivity
2.2.3 Supply Voltage current0~10uA
2.2.4 Operating Temperature Range:-2575
2.2.5 Power-ON Reset
2.2.6 ESD and Latch-up Protection Circuitry on All Pins
2.2.7 Piezoelectric Horn Driver
2.2.8 Interconnect Up to 50 Detectors
2.2.9 Continuous Modulated Tone Output For a Local or Remote Alarm Condition
2.3 FUNCTIONAL BLOCK DIAGRAM
2.4 Pin Description
2.5 Pin function




BL59A66 pdf, 반도체, 판매, 대치품
VIC Common Mode Voltage
C1C2Detect
Vref Smoke Comparator Ref. Volt.
Any Alarm Condition
Any Alarm Condition
5TYPICAL APPLICATION
VDD-4 VDD-2 V
VDD-3.7 VDD-3.3 V
6Calibration Mode Description
For sensitive detecting and calibrating smoke system, BL59A66 could set calibration Mode.
If TEST=VSS-1V, and draining 100uA current from the pin. After one period, BL59A66 is in
calibration ModeIf TEST pin is high impedance condition with one period, Bl59A66 exit
calibration Mode. The following table is shown the relative descriptions of calibration Mode.
PIN Symbol
7:I/O
15:LS SET
10:FEEDBACK
12:OSC
8:BRASS
11:LED
Function
This pin is disabled as an output. A logic high on this pin places the photo
amplifier output on pin 1 or pin 2 as determined by pin 15. The amplifier output
appears as pulses.
If the I/O pin is high, this pin controls the amplifier gain capacitor. If pin 15 is
low, normal gain is selected and the amplifier output is on pin 1. If pin 15 is
high, supervisory gain is selected and the amplifier output is on pin 2.
If pin 7 is high and pin 15 is low (normal gain), taking this pin to a high logic
level increases the amplifier gain by ~10% (hysteresis).
This pin may be driven by an external clock source.
This pin is reconfigured as the smoke integrator output. Three consecutive
smoke detections will cause this pin to go high and three consecutive no smoke
detections cause this pin to go low.
This pin becomes a low-battery indicator. The open-drain NMOS output is
normally OFF. If VDD falls below the low battery threshold, the output turns
on.

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관련 데이터시트

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Photo Smoke Detector Control IC

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BELLING
BL59A66

Smoke Detector

BELLING
BELLING

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