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FAN3240 数据表(PDF) 1 Page - Fairchild Semiconductor

部件名 FAN3240
功能描述  The FAN324x family includes dual high-current relay drivers designed to drive dual-coil polarized latching...
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

FAN3240 数据表(HTML) 1 Page - Fairchild Semiconductor

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March 2013
© 2012 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN3240 / FAN3241 • Rev. 1.0.1
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.
Product
tQUAL
tMAX
OUT Mode
FAN3240
15 ms
150 ms
tOUT = tIN
FAN3241
1 ms
30 ms
tOUT = tMAX
Figure 1.
Typical Application Diagram


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