RE46C108S8TF

Description

• Piezoelectric horn driver with a voltage regulator

• Can operate at 3.3V or 5V

• Intended for applications requiring a 9V horn driver with a low voltage logic supply

• Housed in an 8-Pin SOIC surface mount package

• Product Status: In Production

Features

• Low quiescent current

• Low horn driver R_on (on-resistance)

• Voltage regulation to 3.3V or 5V

• Horn feedback control pin for use with self-oscillating piezoelectric horns

• Can also be used in direct drive applications

• Available in DIP and SOIC packaging

• Available in standard packaging or RoHS compliant Pb-free packaging

• CMOS technology with ESD protection

Key Specifications (Typical @ T_A = 25°C, V_DD = 9V, V_SS = 0V unless noted)

• Operating Voltage Range: 6.0V to 13.8V

• Standby Supply Current: 4 µA max

• Input Leakage Current (Hrnen, Resel): ±100 nA max

• FEED Input Leakage Current (@ +22V): 20 µA to 50 µA

• FEED Input Leakage Current (@ -10V): -50 µA to -15 µA

• Input Low Voltage (Hrnen, Regsel): 1.0V max

• Input High Voltage (Hrnen, Regsel): 2.3V min

• Output Low Voltage (HornS or HornB, I_out = 16mA): 0.3V typ.

• Continuous Output Current (HornS and HornB): 30 mA max

• Continuous Output Current (REGOUT): 55 mA max

• Operating Temperature Range: -40°C to +85°C

• Package / Case: 8-SOIC (0.154", 3.90mm Width)

Applications

• Smoke detectors

• CO detectors

• Personal security products

• Electronic toys

Note: All parameters are subject to the official Microchip RE46C108 datasheet. Specifications are typical values and may vary with operating conditions.