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FAN3241 数据表(PDF) 1 Page - Fairchild Semiconductor |
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FAN3241 数据表(HTML) 1 Page - Fairchild Semiconductor |
1 / 19 page May 2014 © 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN3240 / FAN3241 • Rev. 1.0.2 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 both outputs are prevented from being on at the same time. Under-Voltage Lockout (UVLO) function disables the outputs until the supply voltage is within the operating range. The FAN324x has two separate driver channels with non-inverting logic. One enable / disable pin allows shutdown of both channels, independent of the input signals. Internal thermal shutdown function is provided for thermal protection. The FAN324x is available in an Lead (Pb)-Free 8-lead SOIC package. 3 Relay Open +SUPPLY A B C 4 Relay Close Processor 5 7 OUT1 OUT2 100 k Ω 100 k Ω 10 V ~ 60.0 V IN1 IN2 VS EN 1 Timer / Filter / Protection TSD 2 Regulator Osc 5VB 8 Internal Bias EN EN Ref 6 GND UVLO Product tQUAL tMAX OUT Mode FAN3240 15 ms 150 ms tOUT = tIN FAN3241 1 ms 30 ms tOUT = tMAX Figure 1. Typical Application Diagram |
类似零件编号 - FAN3241 |
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类似说明 - FAN3241 |
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