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RE46C191 Datasheet(PDF) 6 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) 6 Page - Microchip Technology

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RE46C191
DS20005225H-page 6
 2013-2023 Microchip Technology Inc. and its subsidiaries
Low Battery Alarm
Voltage
VLB1
VDD
2.05
2.1
2.15
V
Falling edge,
2.1V nominal selected
VLB2
VDD
2.15
2.2
2.25
V
Falling edge,
2.2V nominal selected
VLB3
VDD
2.25
2.3
2.35
V
Falling edge,
2.3V nominal selected
VLB4
VDD
2.35
2.4
2.45
V
Falling edge,
2.4V nominal selected
VLB5
VDD
2.45
2.5
2.55
V
Falling edge,
2.5V nominal selected
VLB6
VDD
2.55
2.6
2.65
V
Falling edge,
2.6V nominal selected
VLB7
VDD
2.65
2.7
2.75
V
Falling edge,
2.7V nominal selected
VLB8
VDD
2.75
2.8
2.85
V
Falling edge,
2.8V nominal selected
Low Battery
Hysteresis
VLBHYST
VDD
—
100
—
mV
IRCAP Turn-On
Voltage
VTIR1
IRCAP
3.6
4.0
4.4
V
Falling edge, VBST = 5V,
IOUT = 20 mA
IRCAP Turn-Off
Voltage
VTIR2
IRCAP
4.0
4.4
4.8
V
Rising edge, VBST = 5V,
IOUT = 20 mA
DC ELECTRICAL CHARACTERISTICS (CONTINUED)
DC Electrical Characteristics: Unless otherwise indicated, all parameters apply at TA = -10°C to +60°C, VDD = 3V, 
VBST = 4.2V, Typical Application (unless otherwise noted)(1,2,3)
Parameter
Symbol
Test
Pin
Min.
Typ.
Max.
Units
Conditions
Note 1: Wherever a specific VBST value is listed under test conditions, the VBST is forced externally with the 
inductor disconnected and the DC-DC converter NOT running.
2: Typical values are for design information only.
3: Limits over the specified temperature range are not production tested and are based on characterization
data. Unless otherwise stated, production test is at room temperature with guardbanded limits.
4: Not production tested.



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