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RE46C191 Datasheet(PDF) 8 Page - Microchip Technology

Part # RE46C191
Description  CMOS Low-Voltage Photoelectric Smoke Detector ASIC with Interconnect and Timer Mode
PDF  44 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

RE46C191 Datasheet(HTML) 8 Page - Microchip Technology

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RE46C191
DS20005225H-page 8
 2013-2023 Microchip Technology Inc. and its subsidiaries
Smoke Test Period
with Continuous Horn
Pattern
TPER0B
IRED
10
10.7
11.4
s
Standby, no alarm
TPER1B
IRED
2.5
2.7
2.9
s
Standby (after one valid
smoke sample)
TPER2B
IRED
1.25
1.33
1.41
s
Standby (after two
consecutive valid smoke
samples)
TPER3B
IRED
1.25
1.33
1.41
s
Local alarm (after three
consecutive valid smoke
samples)
TPER4B
IRED
313
333
353
ms
Push button test
TPER5B
IRED
10
10.7
11.4
s
In remote alarm
Chamber Test Period
TPCT1
IRED
40
43
46
s
Standby, no alarm
Long-Term Drift
Sample Period
TLTD
IRED
400
430
460
s
Standby, no alarm,
long-term drift enabled
Low Battery
Low Battery Sample
Period
TPLB1
VDD
320
344
368
s
RLED on
TPLB2
VDD
80
86
92
s
RLED off
Horn Operation
Low Battery Horn
Period
THPER1
HB
40
43
46
s
Low battery, no alarm
Chamber Fail Horn
Period
THPER2
HB
40
43
46
s
Chamber failure
Low Battery Horn
On Time
THON1
HB
9.8
10.4
11.0
ms
Low battery, no alarm
Chamber Fail Horn
On Time
THON2
HB
9.8
10.4
11.0
ms
Chamber failure
Chamber Fail
Off Time
THOF1
HB
305
325
345
ms
Failed chamber,
no alarm, 3x chirp
Alarm On Time
with Temporal Horn
Pattern
THON2A
HB
470
500
530
ms
Local or remote alarm
(Note 1)
Alarm Off Time
with Temporal Horn
Pattern
THOF2A
HB
470
500
530
ms
Local or remote alarm
(Note 1)
THOF3A
HB
1.4
1.5
1.6
s
Local or remote alarm
(Note 1)
Alarm On Time
with Continuous
Horn Pattern
THON2B
HB
235
250
265
ms
Local or remote alarm
(Note 1)
Alarm Off Time
with Continuous
Horn Pattern
THOF2B
HB
78
83
88
ms
Local or remote alarm
(Note 1)
AC ELECTRICAL CHARACTERISTICS (CONTINUED)
AC Electrical Characteristics: Unless otherwise indicated, all parameters apply at TA = -10° to +60°C, VDD = 3V, 
VBST = 4.2V, Typical Application (unless otherwise noted) (Notes 1 through 4).
Parameter
Symbol Test Pin
Min.
Typ.
Max.
Units
Conditions
Note 1: See timing diagram for Horn Pattern (Figure 5-2).
2: TPCLK and TIRON are 100% production tested. All other AC parameters are verified by functional testing.
3: Typical values are for design information only.
4: Limits over the specified temperature range are not production tested and are based on characterization
data.



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