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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
IO1
IODIR
IO2
LBST
PG
HRNEN
VSS
1
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
VDD
Vin
Vinfd
Vio2
Vio1
Iin
TA
Icon
TSTG
TJ
VALUE
12
-.3 to Vdd +.3
-10 to +22
-.3 to VREG+.3
-.3 to Vdd + 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 610.992.0727
Facsimile 610.992.0734
E-mail: [email protected]
Page 1 of 8
DS-RE46C109-011207
This datasheet contains PROPRIETARY and CONFIDENTIAL information.
RE46C109
Voltage Regulator, Voltage Converter and Piezoelectric Horn Driver
Product Specification
R&E International
Electrical Characteristics at TA=27°C, Vdd=9V, Vss=0V (unless otherwise noted).
Parameter
Supply Voltage
Quiescent Supply
Current
Supply Current
Input Leakage
Output Leakage
Input Voltage Low
Input Voltage
High
Output Low Voltage
Output High
Voltage
VPOS RMS Output
Voltage
Charge pump
Oscillator Frequncy
Charge pump
Power Efficiency
Charge pump
Voltage Efficiency
Low Battery
Interface
VREG Voltage
VREG Line
Regulation
VREG Load
Regulation
Brownout
Threshold
Brownout Pull
Down Current
Symbol
Vdd
Idd1
Idd2
Iin
Iihf
Iilf
Iout
Vil
Vih
Vol1
Vol2
Vol3
Voh1
Voh2
Vvpos
CPf
CPpe
CPve
Lbv
Vreg
Vregln
Vregld
Vbvt
Ibt
Conditions
Operating
HRNEN, LBST, IODIR, FEED,
REGSEL=VSS, No Loads
LBST, IODIR, FEED =VSS
HRNEN=VDD, No Loads
All Inputs except FEED, Vin=VDD
or VSS
FEED=+22V
MIN
6
-100
FEED=-10V
PG = 5.0v
All Inputs except FEED
All Inputs Except FEED
HORNB or HORNS; Iout=16mA;
IO2, Iout=100uA;
IODIR=Vil , IO1=Vil
PG, Iout=5.0mA;
HORNB or HORNS; Iout=-16mA
IO2, Iout=-100uA;
IODIR=Vil , IO1=Vih
VPOS; Iout=-16mA;
HRNEN=VDD
-50
2.3
Vpos-.5
Vreg -.5
10.7
VPOS; Iout=-16mA, C1=1uF
C2=10uF; Vdd=6.5v
VPOS; No Loads, C1=1uF
C2=10uF; Vdd=6.0v
LBAT; LBST=Vdd
VREG; Iout<50mA; HRNEN=VSS
VREG; Vdd=6V to 12V; VREG
Iout=10mA; HRNEN = VSS; Note 3
VREG; Iout=0 to -50mA;
HRNEN=VSS; Note 3
Falling Edge of VDD; Note 1
95
.17 *Vdd
2.85
4.5
Vdd=4.5V, Vreg=2v
15
Limits
TYP MAX
12
4.7 6.5
350
100
20 50
-15
1.0
1
.3
.3
.5
Vpos-.3
Vreg -.3
.5
.5
11.8 12.7
150
85
99
.2*Vdd
3
.23*Vdd
3.15
50
90
5.0 5.5
25
UNITS
V
uA
uA
nA
uA
uA
uA
V
V
V
V
V
V
V
V
kHz
%
%
V
V
mV
mV
V
mA
Telephone 610.992.0727
Facsimile 610.992.0734
E-mail: [email protected]
Page 2 of 8
DS-RE46C109-011207
This datasheet contains PROPRIETARY and CONFIDENTIAL information.
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