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 7 8 BAT GND 1 OUT 2 OUT 3 OUT 4 OUT BAT NEG 4 IN + symbol (each driver) 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. BAT GND IN + + IN – – OUT BAT NEG schematic diagram (each driver) IN + 15 kΩ BAT GND IN – The DS3680 is characterized for operation from 0°C to 70°C. OUT BAT NEG All resistor values shown are nominal. Copyright 1995, Texas Instruments Incorporated 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 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 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 70 V Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 20 V Output current, IO: Resistive load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 100 mA Inductive load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 50 mA Inductive output load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 H Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C NOTES: 1. All voltages are with respect to BAT GND, unless otherwise specified. 2. Differential input voltages are at the noninverting input terminal IN + with respect to the inverting input terminal IN –. DISSIPATION RATING TABLE TA ≤ 25°C POWER RATING DERATING FACTOR ABOVE TA = 25°C TA = 70°C POWER RATING D 950 mW 7.6 mW/°C 608 mW N 1150 mW 9.2 mW/°C 736 mW PACKAGE recommended operating conditions Supply voltage, VBAT – Input voltage, either input High-level differential input voltage, VIDH Low-level differential input voltage, VIDL MIN MAX UNIT – 10 – 20† – 60 V 20 V 2 † – 20 20 V 0.8 V Operating free-air temperature, TA 0 70 °C † The algebraic convention, in which the less positive (more negative) limit is designated minimum, is used in this data sheet for input voltage levels. electrical characteristics over recommended operating free-air temperature range, VBAT– = –52 V (unless otherwise noted) PARAMETER TEST CONDITIONS IIH High level input current (into IN + ) High-level VID = 2 V VID = 7 V IIL Low level input current (into IN + ) Low-level VID = 0.4 V VID = – 7 V VO(on) On-stage output voltage IO = 50 mA, IO(off) O( ff) Off stage output current Off-stage VO = VBAT – IR Clamp diode reverse current VOK Output clamp voltage VO = 0 IO = 50 mA IO = – 50 mA, All drivers on IBAT(on) On-state battery current IBAT(off) Off-state battery current ‡ All typical values are at TA = 25°C. 2 All drivers off POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MIN TYP‡ MAX 40 100 375 1000 0.01 5 –1 – 100 VID = 2 V VID = 0.8 V – 1.6 – 2.1 –2 – 100 Inputs open –2 – 100 2 100 VBAT – = 0 0.9 1.2 – 0.9 – 1.2 UNIT µA µA V µA µA V –2 – 4.4 mA –1 – 100 µA 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. Generalized Test Circuit, Each Driver BAT GND + Input Output – RL = 1 kΩ BAT NEG L=1H – 52 V TEST CIRCUIT 3V Input – 1.5 V 0V ton toff VO(on) Output – 25 V – 25 V VOLTAGE WAVEFORMS ≈ – 52 V Figure 2. Test Circuit and Voltage Waveforms, Each Driver POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 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. Relay Driver 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. 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