LS7273 Datasheet | LSI

FEATURES : - - - - - - - - - - - - - More feature -rich and cost-effective than the OL7272 and ET7273 Pin to pin replaceable with the OL7272 and functionally equivalent to the ET7273 Push-Pull or Open-Drain output drivers (LS7272) Open-Drain output drivers only (LS7273) Voltage Range: 4.5V - 30V (VDD - VSS) 120m A Sink/Source output drive Operating frequency up to 4 MHz Thermal shutdown protection for output driver overload Enable input with Thermal Shutdown disconnect feature 1.5A dynamic peak output current drive Outputs RS422A patible Inputs CMOS/TTL patible with hysteresis Output drivers fully connected or high-impedance state PART NUMBER ORDERING INFORMATION: This part is available in three package styles, DIP, SOIC, and TSSOP. For DIP packages: LS7272, LS7273, LS7272-20, LS7273-20 For SOIC packages: LS7272-S, LS7273-S, LS7272-S20, LS7273-S20 For TSSOP packages: LS7272-TS, LS7273-TS, LS7272TS20, LS7273TS20 16 VDD 15 D 14 DO 13 DO 12 ENA 11 CO 10 CO 9 C VSS 8 FIGURE 1 DESCRIPTION : The LS7272/LS7273 are short-circuit proof Quad Differential Industrial Power Line Drivers. They can operate up to 30V and have a selectable thermal shutdown features . LSI The Data inputs are TTL / CMOS patible and can also be driven up to the supply voltage VDD. The ENA input can be u sed to place all the outputs in a high impedance state. For the LS7272 the OPD input is used to connect the outputs a s push-pull drivers or open- drain drivers, where the outputs can be returned through external loads to a maximum voltage of VDD. For the LS7273, pin4 is LOW and is tied to ground. The outputs are open drain and the loads can be returned to any voltage between 4.5V and 30V independent of VDD. An internal 5V regulated supply is used to power the logic and level converter blocks. The thermal shu tdown block located in the center of the I C can be disabled by setting the ENA input, Pin 12, to a voltage between 7.5V and 12V. Upon power-up, a Power-On-Reset (POR) circ uit block forces all...