PBD3545-1

January 1993 PBD 3545/1 Universal Sink Driver Description PBD 3545/1 is a bipolar universal high-current highly-protected low side driver with transparent input and 2 A continuous-current sink capability. A high-level input activates the output. The driver is equipped with extensive electrical protection, such as overcurrent protection and thermal protection, which makes the device viritually indestructible. Furthermore it can detect open circuit and short circuit to ground. A special feature is the Error indicating output function pin which signals to the host system if the protection or the load check functions is activated. Typical loads are solenoids, relays or resistive loads. The PBD 3545/1 and PBD 3548/1 are complementary drivers and have similar data. Key Features 2 A continuous-output current Short circuit to VCC protection Error signal to host system Open circuit detection Short circuit to ground detection Thermal protection Built-in protection diodes LS-TTL, CMOS, and supply voltage compatible input ESD protected 5-pin TO-220 package, or 28-lead power PLCC with lead-frame for heatsinking through PC board copper. Supply Output Input Thermal protection Q S R 4 [7] Short-circuit to Vcc protection h Short-circuit to GND detection Open circuit detection [1-3,9,13-17,26,28] [27] (PLCC only) PWR GND Error TO-220 5-pin package 28-pin PLCC package Figure 1. Block Diagram. Pin number in brackets refer to PLCC package. 1 http://www.Datasheet4U.com/...