Piezoelectric Horn Driver and Voltage Converter

/var/www/html/datasheet/sites/default/files/pdfhtml_dummy/22164A-html.html

R&E International

A Subsidiary of Microchip Technology Inc.

RE46C104

Piezoelectric Horn Driver and Voltage Converter

Product Specification

General Description

The RE46C104 is a piezoelectric horn driver with
voltage converter to provide maximum audibility in
low voltage applications. The feedback control pin is
designed for use with self-oscillating piezoelectric
horn but can also be used in direct drive
applications. The built-in charge pump voltage
converter provides increased supply voltage for the
horn drivers allowing outputs to swing from Vss to 2
x Vdd. A charge pump enable pin is provided to
minimize supply current when not in use.

Applications

Smoke detectors
CO Detectors
Personal Security Products
Electronic Toys

Features

•  Low Quiescent Current
•  Low Driver Ron
•  Wide Operating Voltage Range
•  Available in Standard Packaging or RoHS

Compliant Pb Free Packaging

Pin Configuration

N/C

FEED

CAP-

Vss

HRNEN

N/C

CAP+

N/C

Vdd

CPMPEN

HORNS

VPOS

N/C

HORNB

1

14

Absolute maximum ratings

Supply Voltage Vdd ........………………………………….......-.5V to +9.0V
Input voltage Range Vin ...…………………………………..... -.3V to VDD+.3V, except FEED
FEED Input Voltage Range Vinf …………………………...… -10V to +22V
Input Current Iin ..............…………………………………..... 10mA, except FEED
Operating Temperature .......………………………………….. 0 to 50

°C

Continuous Output Current (HornS, HornB, or Vpos)…..….. 30mA

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

DS22164A-page 1

/var/www/html/datasheet/sites/default/files/pdfhtml_dummy/22164A-html.html

RE46C104

Piezoelectric Horn Driver and Voltage Converter

R&E International

Product Specification

A Subsidiary of Microchip Technology

Inc.

DS22164A-page 2

Electrical Characteristics at TA = 25°C, VDD = 5V, Vss = 0V (unless otherwise noted).

Parameter

Test

Pin

Test Conditions

Limits

Min Typ Max

Units

Supply Voltage

Vdd

Operating

4.0 5.0 8.0

V

Standby Supply

Current

Vdd

Hrnen, Cpmpen = Vss

Feed = Vss ; Vdd = 5V

100 500

nA

Vdd

Hrnen, Cpmpen = Vss

Feed = Vss ; Vdd = 8V

500

nA

Supply Current

Vdd

Hrnen = Vss

Cpmpen = Vdd

No Loads; See note 1

200 500

uA

Input Leakage

Hrnen &

Cpmpen

Vin = Vdd or Vss

-100 100

nA

FEED

Feed = +22V

Cpmpen = Vdd

20 50

uA

FEED

Feed = -10V

Cpmpen = Vdd

-50 -15

uA

Input Voltage Low

Hrnen &

Cpmpen

1.0

V

Input Voltage High

Hrnen &

Cpmpen

2.3

V

Output Low Voltage

Horns or

Hornb

Iout = 16mA
Cpmpen = Vdd

0.3 0.5

V

Output High Voltage

Horns or

Hornb

Iout = -16mA
Cpmpen = Vdd

8.5 8.7

V

Vpos Output Voltage

Vpos

Iout = -16mA
Cpmpen = Vdd
Hrnen = Vss

8.9

V

Charge Pump

Oscillator Freq

Vpos

16

kHz

Charge Pump Power

Efficiency

Vpos

Iout = -16mA
C1=C2=10uF

85

%

Charge Pump

Voltage Conversion

Efficiency

Vpos

No Loads
C1=C2=10uF

95 99

%

/var/www/html/datasheet/sites/default/files/pdfhtml_dummy/22164A-html.html

RE46C104

Piezoelectric Horn Driver and Voltage Converter

R&E International

Product Specification

A Subsidiary of Microchip Technology

Inc.

Typical Application

DS22164A-page 3

Charge Pump Enable
Active High

RE46C104

Piezo

Horn Enable
Active High

R1

R2

C3

1

N/C

2

FEED

3

CAP-

4

VSS

5

CAP+

6

HRNEN

7

N/C

14

N/C

13

VDD

12

CPMPEN

11

HORNS

10

HORNB

9

VPOS

8

N/C

C1

C2

+5V

Note:
C1 = 10uF
C2 = 10uF
C3 = 1nF
R1 = 1.5Mohm
R2 = 200kohm

/var/www/html/datasheet/sites/default/files/pdfhtml_dummy/22164A-html.html

RE46C104

Piezoelectric Horn Driver and Voltage Converter

R&E International

Product Specification

A Subsidiary of Microchip Technology

Inc.

Functional Block Diagram

13

6

4

VDD

VSS

CPMPEN

CAP+

CAP-

HRNEN

HORNS

HORNB

FEED

VPOS

Level
Shifters

9

5

3

12

Substrate Logic

VDD

Oscillator
and Logic

2

11

10

VPOS

Level
Shifter

Notes:

1/ The supply current specification is an average under steady state conditions.

The instantaneous current will exceed this value when C1 and C2 charge-up initially (after charge
pump is enabled) and during subsequent recharging of C1 and C2.

DS22164A-page 4

/var/www/html/datasheet/sites/default/files/pdfhtml_dummy/22164A-html.html

RE46C104

Piezoelectric Horn Driver and Voltage Converter

R&E International

Product Specification

A Subsidiary of Microchip Technology

Inc.

Information contained in this publication regarding device
applications and the like is provided only for your convenience and
may be superseded by updates. It is your responsibility to ensure
that your application meets with your specifications. MICROCHIP
MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY
KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL,
STATUTORY OR OTHERWISE, RELATED TO THE
INFORMATION, INCLUDING BUT NOT LIMITED TO ITS
CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY
OR FITNESS FOR PURPOSE

.

Microchip disclaims all liability

arising from this information and its use. Use of Microchip devices in
life support and/or safety applications is entirely at the buyer’s risk,
and the buyer agrees to defend, indemnify and hold harmless
Microchip from any and all damages, claims, suits, or expenses
resulting from such use. No licenses are conveyed, implicitly or
otherwise, under any Microchip intellectual property rights.

Trademarks

The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, K

EE

L

OQ

, K

EE

L

OQ

logo,

MPLAB, PIC, PICmicro,

PICSTART, rfPIC, SmartShunt and UNI/O are registered
trademarks of Microchip Technology Incorporated in the U.S.A.
and other countries.

FilterLab, Hampshire, Linear Active Thermistor, MXDEV, MXLAB,
SEEVAL, SmartSensor and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, CodeGuard,
dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, In-Circuit Serial Programming,
ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB Certified logo,
MPLIB, MPLINK, mTouch, nanoWatt XLP, PICkit, PICDEM,
PICDEM.net, PICtail, PIC

32

logo, PowerCal, PowerInfo,

PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total
Endurance, TSHARC, WiperLock and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.

SQTP is a service mark of Microchip Technology Incorporated in
the U.S.A.

All other trademarks mentioned herein are property of their
respective companies.

Printed on recycled paper.

Microchip received ISO/TS-16949:2002 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California and
India. The Company’s quality system processes and procedures are for its
PIC

®

MCUs and dsPIC

®

DSCs, K

EE

L

OQ

®

code hopping devices, Serial

EEPROMs, microperipherals, nonvolatile memory and analog products. In
addition, Microchip’s quality system for the design and manufacture of
development systems is ISO 9001:2000 certified.

DS22164A-page 5

/var/www/html/datasheet/sites/default/files/pdfhtml_dummy/22164A-html.html

R&E International

A Subsidiary of Microchip Technology Inc.

RE46C104

Piezoelectric Horn Driver and Voltage Converter

Product Specification

General Description

The RE46C104 is a piezoelectric horn driver with
voltage converter to provide maximum audibility in
low voltage applications. The feedback control pin is
designed for use with self-oscillating piezoelectric
horn but can also be used in direct drive
applications. The built-in charge pump voltage
converter provides increased supply voltage for the
horn drivers allowing outputs to swing from Vss to 2
x Vdd. A charge pump enable pin is provided to
minimize supply current when not in use.

Applications

Smoke detectors
CO Detectors
Personal Security Products
Electronic Toys

Features

•  Low Quiescent Current
•  Low Driver Ron
•  Wide Operating Voltage Range
•  Available in Standard Packaging or RoHS

Compliant Pb Free Packaging

Pin Configuration

N/C

FEED

CAP-

Vss

HRNEN

N/C

CAP+

N/C

Vdd

CPMPEN

HORNS

VPOS

N/C

HORNB

1

14

Absolute maximum ratings

Supply Voltage Vdd ........………………………………….......-.5V to +9.0V
Input voltage Range Vin ...…………………………………..... -.3V to VDD+.3V, except FEED
FEED Input Voltage Range Vinf …………………………...… -10V to +22V
Input Current Iin ..............…………………………………..... 10mA, except FEED
Operating Temperature .......………………………………….. 0 to 50

°C

Continuous Output Current (HornS, HornB, or Vpos)…..….. 30mA

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

DS22164A-page 1

/var/www/html/datasheet/sites/default/files/pdfhtml_dummy/22164A-html.html

RE46C104

Piezoelectric Horn Driver and Voltage Converter

R&E International

Product Specification

A Subsidiary of Microchip Technology

Inc.

DS22164A-page 2

Electrical Characteristics at TA = 25°C, VDD = 5V, Vss = 0V (unless otherwise noted).

Parameter

Test

Pin

Test Conditions

Limits

Min Typ Max

Units

Supply Voltage

Vdd

Operating

4.0 5.0 8.0

V

Standby Supply

Current

Vdd

Hrnen, Cpmpen = Vss

Feed = Vss ; Vdd = 5V

100 500

nA

Vdd

Hrnen, Cpmpen = Vss

Feed = Vss ; Vdd = 8V

500

nA

Supply Current

Vdd

Hrnen = Vss

Cpmpen = Vdd

No Loads; See note 1

200 500

uA

Input Leakage

Hrnen &

Cpmpen

Vin = Vdd or Vss

-100 100

nA

FEED

Feed = +22V

Cpmpen = Vdd

20 50

uA

FEED

Feed = -10V

Cpmpen = Vdd

-50 -15

uA

Input Voltage Low

Hrnen &

Cpmpen

1.0

V

Input Voltage High

Hrnen &

Cpmpen

2.3

V

Output Low Voltage

Horns or

Hornb

Iout = 16mA
Cpmpen = Vdd

0.3 0.5

V

Output High Voltage

Horns or

Hornb

Iout = -16mA
Cpmpen = Vdd

8.5 8.7

V

Vpos Output Voltage

Vpos

Iout = -16mA
Cpmpen = Vdd
Hrnen = Vss

8.9

V

Charge Pump

Oscillator Freq

Vpos

16

kHz

Charge Pump Power

Efficiency

Vpos

Iout = -16mA
C1=C2=10uF

85

%

Charge Pump

Voltage Conversion

Efficiency

Vpos

No Loads
C1=C2=10uF

95 99

%

/var/www/html/datasheet/sites/default/files/pdfhtml_dummy/22164A-html.html

RE46C104

Piezoelectric Horn Driver and Voltage Converter

R&E International

Product Specification

A Subsidiary of Microchip Technology

Inc.

Typical Application

DS22164A-page 3

Charge Pump Enable
Active High

RE46C104

Piezo

Horn Enable
Active High

R1

R2

C3

1

N/C

2

FEED

3

CAP-

4

VSS

5

CAP+

6

HRNEN

7

N/C

14

N/C

13

VDD

12

CPMPEN

11

HORNS

10

HORNB

9

VPOS

8

N/C

C1

C2

+5V

Note:
C1 = 10uF
C2 = 10uF
C3 = 1nF
R1 = 1.5Mohm
R2 = 200kohm

/var/www/html/datasheet/sites/default/files/pdfhtml_dummy/22164A-html.html

RE46C104

Piezoelectric Horn Driver and Voltage Converter

R&E International

Product Specification

A Subsidiary of Microchip Technology

Inc.

Functional Block Diagram

13

6

4

VDD

VSS

CPMPEN

CAP+

CAP-

HRNEN

HORNS

HORNB

FEED

VPOS

Level
Shifters

9

5

3

12

Substrate Logic

VDD

Oscillator
and Logic

2

11

10

VPOS

Level
Shifter

Notes:

1/ The supply current specification is an average under steady state conditions.

The instantaneous current will exceed this value when C1 and C2 charge-up initially (after charge
pump is enabled) and during subsequent recharging of C1 and C2.

DS22164A-page 4

/var/www/html/datasheet/sites/default/files/pdfhtml_dummy/22164A-html.html

RE46C104

Piezoelectric Horn Driver and Voltage Converter

R&E International

Product Specification

A Subsidiary of Microchip Technology

Inc.

Information contained in this publication regarding device
applications and the like is provided only for your convenience and
may be superseded by updates. It is your responsibility to ensure
that your application meets with your specifications. MICROCHIP
MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY
KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL,
STATUTORY OR OTHERWISE, RELATED TO THE
INFORMATION, INCLUDING BUT NOT LIMITED TO ITS
CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY
OR FITNESS FOR PURPOSE

.

Microchip disclaims all liability

arising from this information and its use. Use of Microchip devices in
life support and/or safety applications is entirely at the buyer’s risk,
and the buyer agrees to defend, indemnify and hold harmless
Microchip from any and all damages, claims, suits, or expenses
resulting from such use. No licenses are conveyed, implicitly or
otherwise, under any Microchip intellectual property rights.

Trademarks

The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, K

EE

L

OQ

, K

EE

L

OQ

logo,

MPLAB, PIC, PICmicro,

PICSTART, rfPIC, SmartShunt and UNI/O are registered
trademarks of Microchip Technology Incorporated in the U.S.A.
and other countries.

FilterLab, Hampshire, Linear Active Thermistor, MXDEV, MXLAB,
SEEVAL, SmartSensor and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, CodeGuard,
dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, In-Circuit Serial Programming,
ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB Certified logo,
MPLIB, MPLINK, mTouch, nanoWatt XLP, PICkit, PICDEM,
PICDEM.net, PICtail, PIC

32

logo, PowerCal, PowerInfo,

PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total
Endurance, TSHARC, WiperLock and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.

SQTP is a service mark of Microchip Technology Incorporated in
the U.S.A.

All other trademarks mentioned herein are property of their
respective companies.

Printed on recycled paper.

Microchip received ISO/TS-16949:2002 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California and
India. The Company’s quality system processes and procedures are for its
PIC

®

MCUs and dsPIC

®

DSCs, K

EE

L

OQ

®

code hopping devices, Serial

EEPROMs, microperipherals, nonvolatile memory and analog products. In
addition, Microchip’s quality system for the design and manufacture of
development systems is ISO 9001:2000 certified.

DS22164A-page 5

Maker

Microchip Technology Inc.

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Piezoelectric Horn Driver and Voltage Converter Datasheet

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