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DS3680

QUAD TELEPHONE RELAY DRIVER

SLRS014C – MARCH 1986 – REVISED SEPTEMBER 1995

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

• Designed for –52-V Battery Operation

• 50-mA Output Current Capability

• Input Compatible With TTL and CMOS

• High Common-Mode Input Voltage Range

• Very Low Input Current

• Fail-Safe Disconnect 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 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.

IN +

IN –

15 kΩ

OUT

BAT GND

BAT NEG

schematic diagram (each driver)

1 IN+

1 IN–

2 IN–

2 IN+

3 IN+

3 IN–

4 IN–

BAT GND

1 OUT

2 OUT

3 OUT

4 OUT

BAT NEG

4 IN+

D OR N PACKAGE

(TOP VIEW)

symbol (each driver)

BAT GND

–

OUT

BAT NEG

IN +

IN –

All resistor values shown are nominal.

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.

Summary of content (11 pages)

PAGE 1
DS3680 QUAD TELEPHONE RELAY DRIVER SLRS014C – MARCH 1986 – REVISED SEPTEMBER 1995 • • • • • • • • D OR N PACKAGE (TOP VIEW) Designed for – 52-V Battery Operation 50-mA Output Current Capability Input Compatible With TTL and CMOS High Common-Mode Input Voltage Range Very Low Input Current Fail-Safe Disconnect Feature Built-in Output Clamp Diode Direct Replacement for National DS3680 and Fairchild µA3680 description 1 IN + 1 IN – 2 IN – 2 IN + 3 IN + 3 IN – 4 IN – 1 14 2 13 3 12 4 11 5 10 6 9
PAGE 2
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 BAT NEG, VBAT – (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 70 V to 0.5 V Input voltage range with respect to BAT GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 70 V to 20 V Input voltage range with respect to BAT NEG . . . . . . . . . .
PAGE 3
DS3680 QUAD TELEPHONE RELAY DRIVER SLRS014C – MARCH 1986 – REVISED SEPTEMBER 1995 switching characteristics VBAT– = –52 V, TA = 25°C PARAMETER ton toff TEST CONDITIONS Turn-on time VID = 3-V pulse, L = 1 H, Turn-off time MIN RL = 1 kΩ, See Figure 2 TYP MAX 1 10 UNIT µs 1 10 µs PARAMETER MEASUREMENT INFORMATION BAT GND II + VI IO Load – BAT NEG VO – 52 V – 52 V Figure 1.
PAGE 4
DS3680 QUAD TELEPHONE RELAY DRIVER SLRS014C – MARCH 1986 – REVISED SEPTEMBER 1995 APPLICATION INFORMATION 52-V Battery + – SN74XX 9 DS3680 1 2 3 4 5 6 8 7 K1 BAT NEG 1 IN + 1 IN – 13 2 IN + 1 OUT 2 IN – K2 3 IN + 3 IN – 12 4 IN + 2 OUT 4 IN – K3 ControlSignal Source 11 3 OUT K4 10 4 OUT K1 – K4 50-V Relay Coils – 50 mA MAX BAT GND 14 Figure 3.
PAGE 5
PACKAGE OPTION ADDENDUM www.ti.
PAGE 6
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device DS3680DR Package Package Pins Type Drawing SOIC D 14 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2500 330.0 16.4 Pack Materials-Page 1 6.5 B0 (mm) K0 (mm) P1 (mm) 9.0 2.1 8.0 W Pin1 (mm) Quadrant 16.
PAGE 7
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) DS3680DR SOIC D 14 2500 367.0 367.0 38.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.