Universal Sink Driver
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 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. •
2 A continuous-output current
Short circuit to VCC protection
Error signal to host system
Open circuit detection
Short circuit to ground detection
Built-in protection diodes
• LS-TTL, CMOS, and supply voltage
• ESD protected
• 5-pin TO-220 package, or 28-lead
power PLCC with lead-frame for heat-
sinking through PC board copper.
 (PLCC only)
Figure 1. Block Diagram. Pin number in brackets refer to PLCC package.
TO-220 5-pin package
28-pin PLCC package