The RE46C318 is a CMOS piezoelectric horn driver IC with built-in boost converter. It is intended for use in a 3-V battery or battery-backed applications. The circuit features a DC-to-DC boost converter and a driver circuit suitable for driving a piezoelectric horn. The RE46C318 is compatible with the RE46C117 and offers lower stand-by current.
Features
• 3 V operation
• Low quiescent current
• 10 V boost converter
• Low horn driver on-resistance
• Compatible with RE46C117 and RE46C317
