Features: CMOS compatible inputs
High impedance inputs PNP's
High output voltage breakdown 56V min
High output current capability 300 mA max
Same pin-outs and logic functions as DS75451 and DS75461 series circuits
Low VCC power dissipation (28 mW both outputs "ON" at 5V)SpecificationsAbsoluteMaximumRatings(Note1)
If MilitaryAerospace specified devices are required please contact the National Semiconductor Sales OfficeDistributors for availability and specifications
SupplyVoltage 16V
VoltageatInputs -03VtoVCC+ 03V
OutputVoltage 56V
StorageTemperatureRange 65 to+150
Maximum Power Dissipation' at 25C
CavityPackage 1133mW
MoldedPackage 1022mW
TO-5Package 787mW
LeadTemperature(Soldering4sec 260
Derate cavity package 76 mWC above 25C derate molded package 82 mWC above 25C derate TO-5 package 52 mWC above 25DescriptionThe DS1631 series of dual peripheral drivers was designed to be a universal set of interface components for CMOS circuits
Each circuit DS1631 series has CMOS compatible inputs with thresholds that track as a function of VCC (approximately VCC)The inputs are PNPs providing the high impedance necessary for interfacing with CMOS
Outputs have high voltage capability minimum breakdown voltage is 56V at 250 A
The outputs of DS1631 series are Darlington connected transistors This al-lows high current operation (300 mA max) at low internal VCC current levels since base drive for the output transistor is obtained from the load in proportion to the required load-ing conditions This is essential in order to minimize loading on the CMOS logic supply
Typical VCC=5V power is 28 mW with both outputs ON VCC operating range is 45V to 15V
The circuit DS1631 series also features output transistor protection if the VCC supply is lost by forcing the output into the high impe-dance OFF state with the same breakdown levels as when VCC was applied
Pin-outs are the same as the respective logic functions found in the following popular series of circuits DS75451 DS75461 This feature allows direct conversion of present systems to the MM74C CMOS family and DS1631 series circuits with great power savings
The DS1631 series is also TTL compatible at VCC= 5V
DS1634 Data Sheet
