RE46C109 Datasheet, PDF (1/8 Pages) Microchip Technology – Voltage Regulator, Voltage Converter and Piezoelectric Horn Driver

R&E International
RE46C109
Voltage Regulator, Voltage Converter and Piezoelectric Horn Driver
Product Specification
General Description
The RE46C109 is intended for use in applications
where low voltage regulation and a high voltage
horn driver are required. The circuit features a
voltage boost converter/regulator and driver circuit
suitable for driving a piezoelectric horn. The horn
enable pin activates the boost converter and horn
driver circuit. Supply current is 6.5uA maximum
when the boost regulator and horn driver are not in
use. A 3V regulator is also provided for
microprocessor voltage regulation. Low battery
detection and signaling are also available.
Interconnect pins are provided to allow
communication in multiple unit environments. A
power good pin monitors the status of the regulator
output.
Applications
Smoke detectors
CO Detectors
Personal Security Products
Electronic Games
Hand Held Instruments
Features
• Low Quiescent Current
• 12V Boost Regulator
• Low Horn Driver Ron
• 3V Regulator, Other Options Available
• Low Battery Detection Interface
• Power Good and Brownout Circuits
• Device interconnection
• Available in DIP and SOIC packages
• Available in Standard Packaging or RoHS
Compliant Pb Free Packaging
Pin Configuration
VDD
1
IO1
IODIR
IO2
LBST
PG
HRNEN
VSS
16 ^VPOS
CAP+
CAP-
VREG
LBAT
HORNB
HORNS
FEED
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Input Voltage Range Except FEED, IO1, IO2
FEED Input Voltage Range
IO2 Input Voltage Range
IO1 (as input) Voltage Range
Input Current except FEED
Operating Temperature
Continuous Operating Current (Horn or VPOS)
Storage Temperature
Maximum Junction Temperature
SYMBOL
V_DD
V_in
V_infd
V_io2
V_io1
I_in
T_A
I_con
T_STG
T_J
VALUE
12
-.3 to V_dd +.3
-10 to +22
-.3 to VREG+.3
-.3 to V_dd + 6
10
-40 to 85
50
-55 to 125
125
UNITS
V
V
V
V
V
mA
°C
mA
°C
°C
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are
stress ratings only and operation at these conditions for extended periods may affect device reliability.
This product utilizes CMOS technology with static protection; however proper ESD prevention procedures should be used
when handling this product. Damage can occur when exposed to extremely high static electrical charges.
Telephone [phone]
Facsimile 610.992.0734
E-mail: [e-mail]
Page 1 of 8
DS-RE46C109-011207
This datasheet contains PROPRIETARY and CONFIDENTIAL information.