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This literature is subject to all applicable copyright laws and is not for resale in any manner.FAN3240 / FAN3241 Smart Dual-Coil Relay Drivers May 2014 FAN3240 / FAN3241 Smart Dual-Coil Relay Drivers Features Description 8-V to 60-V Operation Range for use with 12-V, The FAN324x family includes dual high-current relay 24-V or 48-V Relays drivers designed to drive dual-coil polarized latching Strong DC Current to Break through Welded relays that connect and disconnect power in smart Contacts without using External Switches electronic meters and solar inverter applications. Integrated Linear Regulator for Isolated or The output of the FAN324x is rated for operation with Non-Isolated Meter Power Designs supply voltage range from 8 V to 60 V. The filter / timer Accurate Input Filter Time and XOR input protection block prevents inadvertent switching from noisy input signals by providing input-pulse qualification (t ) and Accurate maximum output pulse width QUAL maximum output pulse width limit (t ). The output can MAX Two output operating modes follows input width operate in follow-input mode or maximum width mode. or maximum value These parameters are factory adjustable and additional 3.3-V or 5-V Square-Wave Logic Input Signals configurations are available. XOR input protection is also provided so that both outputs are prevented from Enable Pin for Operational Flexibility being on at the same time. Under-Voltage Lockout Internal Thermal Shutdown Protection (UVLO) function disables the outputs until the supply voltage is within the operating range. Rated from 40C to +105C Ambient The FAN324x has two separate driver channels with Applications non-inverting logic. One enable / disable pin allows shutdown of both channels, independent of the input Smart E-Meters, Energy Generation & Distribution, signals. Internal thermal shutdown function is provided Building and Home Control, Industrial dual-coil for thermal protection. The FAN324x is available in an relay Driving Applications Lead (Pb)-Free 8-lead SOIC package. +SUPPLY 10 V ~ 60.0 V VS 8 EN 1 UVLO Ref 5VB 2 Regulator OUT1 7 EN Internal Bias TSD A GND B 6 Osc Relay Open 3 C IN1 100 k Timer / OUT2 Processor Filter / 5 Protection EN IN2 4 Relay Close Product t t OUT Mode QUAL MAX 100 k FAN3240 15 ms 150 ms t = t OUT IN FAN3241 1 ms 30 ms t = t OUT MAX Figure 1. Typical Application Diagram 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN3240 / FAN3241 Rev. 1.0.2