Universal Source Driver
PBD 3548/1 is a bipolar universal high-current highly-protected high side driver with
transparent input and 2 A continuous-current source capability. A low-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 VCC.
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 3548/1 and PBD 3545/1 are complementary drivers and have similar data.
• 2 A continuous-output current
• Short circuit to ground protection
• Error signal to host system
• Open circuit detection
• Short circuit to VCC detection
• Thermal protection
• 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.
PBD 3548/1 To logic
Figure 1. Block Diagram.
TO-220 5-pin package
28-pin PLCC package