DS3680 Datasheet | Texas Instruments

Feature - Built-in Output Clamp Diode - Direct Replacement for National DS3680 and Fairchild µA3680 description The 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 m A 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 mon-mode input range of ± 20 V referenced to battery ground. The mon-mode input voltages for the four drivers can be different, so a wide range of input elements can be acmodated. The high-impedance inputs are patible 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 plementary 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. DS3680 QUAD TELEPHONE RELAY DRIVER SLRS014C - MARCH 1986 - REVISED SEPTEMBER 1995 D OR N PACKAGE (TOP VIEW) 1 IN + 1 1 IN - 2 2 IN - 3 2 IN + 4 3 IN + 5 3 IN - 6 4 IN - 7 14 BAT GND 13 1 OUT 12 2 OUT 11 3 OUT 10 4 OUT 9 BAT NEG 8 4 IN + symbol (each driver) BAT GND IN + + - - BAT NEG schematic diagram (each driver) IN + 15 kΩ BAT GND - All resistor values shown are nominal. OUT BAT NEG PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. - POST OFFICE BOX 655303 DALLAS, TEXAS 75265 Copyright © 1995, Texas Instruments Incorporated 1 DS3680 QUAD TELEPHONE RELAY DRIVER SLRS014C - MARCH 1986 - REVISED SEPTEMBER 1995 absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage range at...