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DS3680

ACTIVE

Quad telephone relay drivers

Product details

Rating Catalog Operating temperature range (°C) 0 to 70 Drivers per package 4 Switching voltage (max) (V) 60 Output voltage (max) (V) 60 Peak output current (A) 0.1 Delay time (typ) (ns) 1000 Input compatibility CMOS, TTL Vol at lowest spec current (typ) (mV) 900 Iout/ch (max) (mA) 100 Iout_off (typ) (µA) 100
Rating Catalog Operating temperature range (°C) 0 to 70 Drivers per package 4 Switching voltage (max) (V) 60 Output voltage (max) (V) 60 Peak output current (A) 0.1 Delay time (typ) (ns) 1000 Input compatibility CMOS, TTL Vol at lowest spec current (typ) (mV) 900 Iout/ch (max) (mA) 100 Iout_off (typ) (µA) 100
PDIP (N) 14 181.42 mm² 19.3 x 9.4 SOIC (D) 14 51.9 mm² 8.65 x 6
  • 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 uA3680

  • 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 uA3680

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.

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.

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* Data sheet Quad Telephone Relay Driver datasheet (Rev. C) 01 Sep 1995

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PDIP (N) 14 Ultra Librarian
SOIC (D) 14 Ultra Librarian

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