DS3680N ,Quad Negative Voltage Relay Drivermaximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage ra ..
DS3686 ,Dual Positive Voltage Relay Driverapplicationstransistor protection.The outputs are Darlington connected transistors, which al-low hi ..
DS3687 ,Negative Voltage Relay DriverapplicationsConnectionDiagramsMetalCanPackage Dual-In-LinePackageTL/F/5823–1TopViewPin4isinelectric ..
DS3691M ,RS-422/RS-423 Line Drivers With TRI-STATE Outputsfeatures 4 buffered outputs• TRI-STATE Outputs in RS-422 Modewith high source and sink current capa ..
DS3691MX ,RS-422/RS-423 Line Drivers With TRI-STATE OutputsElectrical Characteristics” provide conditions for actual device operation.Note3: Unless otherwise ..
DS3691N ,RS-422/RS-423 Line Drivers With TRI-STATE OutputsFeaturesn Dual RS-422 line driver with mode pin low, or quadThe DS1691A/DS3691 are low power Schott ..
EC103D1 ,SCR
EC103D1 ,SCR
EC103D1 ,SCR
EC2-12NU ,COMPACT AND LIGHTWEIGHT, SMALL MOUNTING SIZE, HIGH BREAKDOWN VOLTAGE
EC2-24 ,COMPACT AND LIGHTWEIGHT, SMALL MOUNTING SIZE, HIGH BREAKDOWN VOLTAGE
EC2-24NU ,COMPACT AND LIGHTWEIGHT, SMALL MOUNTING SIZE, HIGH BREAKDOWN VOLTAGE
DS3680-DS3680D-DS3680N
Quad Negative Voltage Relay Driver
Very Low Input Current Fail-Safe Disconnect Feature Built-in Output Clamp Diode Direct Replacement for National DS3680and Fairchild m A3680
descriptionThe DS3680 telephone relay driver is a monolithic
integrated circuit designed to interface –48-V
relay systems to TTL or other systems in
telephone applications. It is capable of sourcing
up to 50 mA from standard –52-V battery power.
To reduce the effects of noise and IR drop between
logic ground and battery ground, these drivers are
designed to operate with a common-mode input
range of ±20 V referenced to battery ground. The
common-mode input voltages for the four drivers
can be different, so a wide range of input elements
can be accommodated. The high-impedance
inputs are compatible with positive TTL and
CMOS levels or negative logic levels. A clamp
network is included in the driver outputs to limit
high-voltage transients generated by the relay coil
during switching. The complementary inputs
ensure that the driver output is off as a fail-safe
condition when either output is open.
The DS3680 is characterized for operation from
0°C to 70°C.
15 kW
BAT GND
schematic diagram (each driver)2 IN–
2 IN+
3 IN+
3 IN–
4 IN–
2 OUT
3 OUT
4 OUT
BAT NEG
4 IN+
symbol (each driver)
BAT GND OUTAll resistor values shown are nominal.
