FAN3241

FAN3240 / FAN3241 — Smart Dual-Coil Relay Drivers May 2014 FAN3240 / FAN3241 Smart Dual-Coil Relay Drivers Features  8-V to 60-V Operation Range for use with 12-V, 24-V or 48-V Relays  Strong DC Current to Break through Welded Contacts without using External Switches  Integrated Linear Regulator for Isolated or Non-Isolated Meter Power Designs  Accurate Input Filter Time and XOR input protection  Accurate maximum output pulse width  Two output operating modes – follows input width or maximum value  3.3-V or 5-V Square-Wave Logic Input Signals  Enable Pin for Operational Flexibility  Internal Thermal Shutdown Protection  Rated from –40°C to +105°C Ambient Applications  Smart E-Meters, Energy Generation & Distribution, Building and Home Control, Industrial dual-coil relay Driving Applications Description The FAN324x family includes dual high-current relay drivers designed to drive dual-coil polarized latching relays that connect and disconnect power in smart electronic meters and solar inverter applications. The output of the FAN324x is rated for operation with supply voltage range from 8 V to 60 V. The filter / timer block prevents inadvertent switching from noisy input signals by providing input-pulse qualification (tQUAL) and maximum output pulse width limit (tMAX). The output can operate in follow-input mode or maximum width mode. These parameters are factory adjustable and additional configurations are available. XOR input protection is also provided so that...