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.

© 2009 Microchip Technology Inc.

DS22164A-page 4