UCN5810F Overview
Key Features
- reduced supply requirements (active DMOS pull-downs) and lower saturation voltages when compared with the original UCN5810A
- The CMOS shift register and latches allow direct interfacing with microprocessor-based systems
- With a 5 V supply, they will operate to at least 3.3 MHz
- At 12 V, higher speeds are possible
- Use with TTL may require appropriate pull-up resistors to ensure an input logic high
- A CMOS serial data output enables cascade connections in applications requiring additional drive lines
- Similar devices are available as the UCN5811A (12 bits), UCN5812AF/EPF (20 bits), and UCN5818AF/EPF (32 bits)
- The UCN5810AF/EPF/LWF output source drivers are NPN Darlingtons capable of sourcing up to 40 mA
- The DMOS active pull-downs are capable of sinking up to 15 mA
- For inter-digit blanking, all of the output drivers can be disabled and the DMOS sink drivers turned on by the BLANKING input high
