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RE46C167 데이터시트 PDF




Microchip Technology에서 제조한 전자 부품 RE46C167은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 RE46C167 자료 제공

부품번호 RE46C167 기능
기능 CMOS Photoelectric Smoke Detector ASIC
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RE46C167 데이터시트, 핀배열, 회로
RE46C165/6/7/8
CMOS Photoelectric Smoke Detector ASIC
with Interconnect, Timer Mode and Alarm Memory
Features
• Temporal Horn Pattern or Continuous Tone
• Alarm Memory
• Sensitivity Control Times:
- 9 minutes (RE46C165/6)
- 1.2 minutes (RE46C167/8)
• I/O Filter and Charge Dump
• Interconnect up to 40 Detectors
• Internal Power-on Reset (POR)
• >2000V ESD Protection (HBM) on All Pins
• Low Quiescent Current Consumption (<8 µA)
• Internal Low Battery Detection and Chamber Test
• RoHS Compliant Lead-Free Packaging
Description
The RE46C165/6/7/8 devices are low-power, CMOS
photoelectric type, smoke detector ICs. With minimal
external components, these circuits will provide all the
required features for a photoelectric type smoke
detector.
Each design incorporates a gain-selectable photo
amplifier for use with an infrared emitter/detector pair.
An internal oscillator strobes power to the smoke
detection circuitry for 100 µs, every 10 seconds, to
keep standby current to a minimum. If smoke is
sensed, the detection rate is increased to verify an
alarm condition. A High-Gain mode is available for
push button chamber testing.
A check for a low battery condition and chamber
integrity is performed every 43 seconds when in
standby. The temporal horn pattern supports the
NFPA 72 emergency evacuation signal.
An interconnect pin allows multiple detectors to be
connected so when one unit alarms, all units will sound.
A charge dump feature will quickly discharge the
interconnect line when exiting a local alarm. The
interconnect input is also digitally filtered.
An internal timer allows for single button, push-to-test
to be used for a Reduced Sensitivity mode.
An alarm memory feature allows the user to determine
if the unit has previously entered a local alarm
condition.
Utilizing low-power CMOS technology, the
RE46C165/6/7/8 was designed for use in smoke
detectors that comply with Underwriters Laboratory
Specification UL217 and UL268.
2010-2016 Microchip Technology Inc.
DS20002251B-page 1




RE46C167 pdf, 반도체, 판매, 대치품
RE46C165/6/7/8
NOTES:
DS20002251B-page 4
2010-2016 Microchip Technology Inc.

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RE46C167 전자부품, 판매, 대치품
RE46C165/6/7/8
AC ELECTRICAL CHARACTERISTICS
AC Electrical Characteristics: Unless otherwise indicated, all parameters apply at TA = -25° to +75°, VDD = 9V,
Typical Application (unless otherwise noted), VSS = 0V.
Parameter
Symbol
Test
Pin
Min.
Typ.
Max. Units Clocks
Conditions
Oscillator Time Base (COSC, ROSC)
Oscillator Period
Oscillator Tolerance
TPOSC
TTOLOSC
9
9
LED Indication (LED)
LED On Time
LED Period
TON1
TPLED0
TPLED1
TPLED2
TPLED3
11
11
11
11
11
TPLED4 11
Alarm Memory LED
Pulse Train (3x)
Off Time
Alarm Memory LED
Timer Period
TOFLED 11
TLALED 11
9.38 10.42 11.46 ms
-10 0 10 %
1 Operating (Note 1)
1 Operating
9.4 10.4 11.5
LED IS NOT ON
38 43 47
450 500 550
9.6 10.7 11.7
ms
s
s
ms
s
225 250 275 ms
1.2 1.3 1.5
s
1
4096
48
1024
24
127
Operating
Remote alarm only
Standby, no alarm
Local alarm condition
Timer mode, no local alarm
(Note 4)
Timer mode, no local alarm
(Note 4)
Alarm memory set,
LED enabled
21.5 23.9 26.3 Hours 8257536 Alarm memory set
Detection (STROBE, IRED)
STROBE On Time
TSTON 4 9.4 10.4 11.5 ms
1 Smoke test, chamber test
IRED On Time
TIRON
6
94 104 114 µs
0.01 Operating/DIAG (Note 1)
Note 1: TPOSC and TIRON are 100% production tested. All other timing is verified by functional testing.
2: See the timing diagram for Horn Temporal Pattern in Figure 3-2.
3: See the timing diagram for Horn Continuous Pattern in Figure 3-3.
4: During Timer mode, the LED period is 10.5 seconds. The LED period will return to 43 seconds at the
conclusion of the Timer mode.
2010-2016 Microchip Technology Inc.
DS20002251B-page 7

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