Cmos Dual Peripheral Drivers -

The DS1631 series of dual peripheral drivers DS1631 DS3631 DS1632 DS3632 DS1633 DS3633 DS1634 DS3634 was designed to be a universal set of Interface components for CMOS circuits. Each circuit has CMOS compatible inputs with thresholds that track as a function of VCC (approximately (/2 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 mA. The outputs 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 e 5V power is 28 mW with both outputs ON. VCC operating range is 4.5V to 15V. By National Semiconductor Corporation