R&E International
RE46C116
DC to DC Converter, Voltage Regulator and Piezoelectric Horn Driver
Preliminary Product Specification
General Description
The RE46C116 is intended for use in 3V or 4.5V
battery or battery-backed applications. The circuit
features a DC-to-DC up-converter and driver circuit
suitable for sounding a piezoelectric horn, a 3.3V
regulator for microprocessor voltage regulation and
an I/O for communication with interconnected units.
Features
•
•
•
•
•
•
Low Quiescent Current
10V Up Converter
Low Horn Driver Ron
Voltage Regulation to 3.3V
Low Battery Detection
Available in Standard Packaging or RoHS
Compliant Pb Free Packaging
Preliminary Pin Configuration
IODIR
IO1
VDD
IO2
Vss2
LX
VSS
1
2
3
4
5
6
7
14
13
12
11
10
9
8
FEED
HRNEN
HORNS
HORNB
VO
REGOUT
LBOUT
14 Lead 300 mil PDIP
Telephone 610.992.0727
Page 1 of 7
Facsimile 610.992.0734
This datasheet contains PROPRIETARY information.
E-mail: rande@randeint.com
DS-RE46C116-012407
RE46C116
DC to DC Converter, Voltage Regulator
and Piezoelectric Horn Driver
Preliminary Product Specification
R&E International
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Input Voltage Range Except FEED
FEED Input Voltage Range
Input Current except FEED
Operating Temperature
Storage Temperature
Junction Temperature
Continuous Operating Current
(HornS, HornB, Vreg)
SYMBOL
V
DD
VO
V
in
V
infd
I
in
T
A
T
STG
Tj
I
O
VALUE
5
14
-.3 to V
dd
+.3
-10 to +22
10
-40 to 85
-55 to 125
150
40
UNITS
V
V
V
V
mA
°C
°C
°C
mA
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 charge.
Telephone 610.992.0727
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Facsimile 610.992.0734
This datasheet contains PROPRIETARY information.
E-mail: rande@randeint.com
DS-RE46C116-012407
RE46C116
DC to DC Converter, Voltage Regulator
and Piezoelectric Horn Driver
Preliminary Product Specification
R&E International
Electrical Characteristics
Limits apply at Vdd=3V, Vss=Vss2=0V, Creg=10uF, Cvo=10uF, T
A
=27°C, unless otherwise noted.
Parameter
Supply Voltage
Standby Supply
Current
Quiescent Supply
Current
Quiescent Ivo
Input Leakage
Symbol
Vdd
Iddstby
Iddq
Ivoq
Iin
Iihf
Iilf
Operating
Test Conditions
HRNEN=Vss; Other inputs low; No
loads; DC-DC Running; IO2=Float
HRNEN=Vss; Other inputs low; No
loads; VO=5V; IO2=Float
HRNEN=Vss; Other inputs low; No
loads; VO=5V; IO2=Float
All Inputs except FEED
Vin=VDD or VSS
FEED=+22V; VO=10V
FEED=-10V; VO=10V
All Inputs except FEED and IO1
FEED Input; VO=10V
All Inputs Except FEED and IO1
FEED Input; VO=10V
HORNB or HORNS; Iout=16mA;
LBOUT; Iout=100uA
IO2, Iout=100uA; IODIR=0V
HORNB or HORNS; VO=10V;
Iout=-16mA; Vdd=HRNEN=3V
LBOUT; Iout=-100uA; Vdd<Vlbat
IO2, Iout=-100uA; IODIR=0V
IO1, Iout=-4mA; IODIR=Vih
HRNEN=3V: Iout=10mA
HRNEN=Vss; Iout=10mA
HRNEN=Vss; Iload= 10mA
HRNEN=Vss; Iload=100uA
T
A
=0 to 50°C
Iout<20mA
Iout=0 to 20mA; HRNEN=3V
Iout=0 to 20mA; HRNEN=Vss
Falling edge of VO
VO=3.0V; Vreg=2.0V
Min
2.0
Limits
Typ
22
8
10
Max
5.0
Units
V
uA
12
15
100
uA
uA
nA
uA
uA
V
V
V
V
V
V
V
V
V
V
V
V
V
%
%
V
-100
-50
20
-15
50
1
3
Input Voltage Low
Input Voltage High
Vil
Vih
Vol1
Vol2
Vol3
Voh1
2.3
7
.3
.3
.3
9.5
Vreg-.5
Vreg-.5
Output Low Voltage
.5
.5
.5
9.7
Vreg-.3
Vreg-.3
5
Output High Voltage
VO Output Voltage
VO Efficiency
Low Battery
Threshold
VREG Voltage
VREG Load
Regulation
Brownout Threshold
Brownout Pull down
VREG over voltage
clamp
Voh2
Voh3
Voh4
Vvo1
Vvo2
Voeff1
Voeff2
Vlbat
Vreg1
Vregld1
Vregld2
Vobvt
Ibt
Vcl1
IO1ih1
IO1ih2
IO1ioh1
IO1ioh2
IO1iol1
10
4
85
75
2.4
3.1
3.3
50
50
3.6
40
4
3.5
20
3.75
V
mV
mV
V
mA
V
uA
uA
mA
mA
mA
4.25
60
150
IODIR=0V, IO1=1V
IODIR=0V, IO1=17V
25
-4
-5
-5
10
3
IO1 Output Current
IODIR, IO2=Vih, IO1=3V
IODIR, IO2=Vih, IO1=Vss
IO dump current
IODIR= Vih, IO2=0V, IO1=1V
IODIR=0V
IODIR=0V
Facsimile 610.992.0734
-16
IO1 Alarm Voltage
Telephone 610.992.0727
Page 3 of 7
IO1vih
IO1vil
1.5
V
V
E-mail: rande@randeint.com
DS-RE46C116-012407
This datasheet contains PROPRIETARY information.
RE46C116
DC to DC Converter, Voltage Regulator
and Piezoelectric Horn Driver
Preliminary Product Specification
R&E International
Electrical Table Notes:
1/ The brown-out threshold voltage is the VO voltage at which the regulator and horn will be disabled. At VO voltages below the
brown-out threshold Regout will be pulled to Vss.
2/ In normal operation, the regulator will provide high-side current of up to 20mA, but current sinking capability is typically under 1uA.
The overvoltage clamp is intended to limit the voltage at Regout when it is pulled up by an external source.
3/ The limits shown are 100% tested at 25C only. Test limits are guard-banded based on temperature characterization to guarantee
compliance at temperature extremes.
Interconnect Logic Truth Table
IODIR
1
1
0
0
Input
0
1
IO2
Output
Input
IO1
Output
0
1
0
1
0
1
Telephone 610.992.0727
Page 4 of 7
Facsimile 610.992.0734
This datasheet contains PROPRIETARY information.
E-mail: rande@randeint.com
DS-RE46C116-012407
RE46C116
DC to DC Converter, Voltage Regulator
and Piezoelectric Horn Driver
Preliminary Product Specification
R&E International
Functional Block Diagram
Telephone 610.992.0727
Page 5 of 7
Facsimile 610.992.0734
This datasheet contains PROPRIETARY information.
E-mail: rande@randeint.com
DS-RE46C116-012407
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