RE46C317/18
Piezoelectric Horn Driver with Boost Converter
Features: Description: The RE46C317/18 are CMOS piezoelectric horn driver
ICs with built-in boost converter. They are intended for
use in 3V battery or battery-backed applications. The
circuits feature a boost converter and a driver circuit
suitable for driving a piezoelectric horn. 3V Operation
Low Quiescent Current
10V Boost Converter
Low Horn Driver On-Resistance
Compatible with RE46C117 The RE46C317/18 are compatible with the RE46C117
device and offer lower standby current. Applications: The RE46C317 has three valid states of Horn Enable
(tri-state, low and high), while the RE46C318 has only
two valid states, low and high. Smoke Detectors
CO Detectors
Personal Security Products
Electronic Toys Package Types
RE46C317/18
PDIP, SOIC
FEED 1 8 HRNEN VDD 2 7 HORNS LX 3 6 HORNB VSS 4 5 VO Typical Application
RE46C317/18 R1 C4 1.5M R2 HRNEN VDD HORNS LX HORNB High 200K
1 nF FEED RE46C317 Only Tri-state Low L1
RE46C318 Only 10 ОјH …
