RE46C800 datasheet(1/24 Pages) MICROCHIP

Part #	RE46C800

Description	Carbon Monoxide Detector Companion IC

PDF	24 Pages

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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 2013 Microchip Technology Inc.

DS25172A-page 1

RE46C800

Features:

• Low Quiescent Current

• Operation from 2V or 12V

• 9.8V Boost Regulator

• Horn Driver

•LED Driver

• 3.3V Regulated Voltage for Microcontroller

Operation

• Internal Operational Amplifiers:

- ±1 mV Input Offset Voltage

- Rail-to-rail Input and Output

- 10 kHz Gain Bandwidth Product

- Unity Gain Stable

• Bidirectional Alarm Interconnect

Applications:

•CO Detector

• Toxic Gas Detector

• Heat Detector

Description:

The RE46C800 is a low-power CMOS carbon monoxide

detector companion IC. The RE46C800 provides all of

the analog, interface, and power management functions

for a microcontroller-based CO or toxic gas detector. It

is intended for use in both 3V and 9V battery or battery-

backed applications. It features a boost regulator and

horn driver circuit suitable for driving a piezoelectric

horn, a 3.3V regulator for microcontroller voltage

regulation, an LED driver, an operational amplifier and

an IO for communication with interconnected units.

Package Types

1

2

3

4

20

19

18

17

VDD

INP

VSS

LX

HRNEN

HB

HS

FEED

RE46C800

SSOP

5

6

7

8

9

10

INN

VREF

OPOUT

9VDET

ACDET

LEDEN

IO1

IO2

16

15

14

13

12

11

LEDPWR

VBST

VREG

IODIR

Carbon Monoxide Detector Companion IC

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RE46C800 Datasheet(PDF) 1 Page - Microchip Technology

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