DESCRIPTION

· The UC5601 is a SCSI active terminator that complies with SCSI and SCSI-2 standards.
· It provides precision resistive pull-up to a 2.9V reference for all 18 lines in a SCSI bus cable.
· The device features internal circuit trimming to reduce resistor tolerances to ±3% and adjust the regulator’s output voltage for accurate termination current.
· It includes a disconnect feature that disconnects all terminating resistors and turns off the regulator upon a logic command, significantly reducing standby power.
· The UC5601 is available in low thermal resistance versions of the industry standard 28-pin wide body SOIC and PLCC, as well as a 24-pin DIL plastic package.

FEATURES

· Complies with SCSI and SCSI-2 standards.
· 10pF channel capacitance during disconnect.
· Active termination for 18 lines.
· Logic command disconnects all termination lines.
· Low supply current in disconnect mode.
· Trimmed regulator for accurate termination current.
· Current limit and thermal shutdown protection.
· 110 Ohm termination.
· Meets SCSI hot plugging requirements.
· Negative clamping on all signal lines.
· 20mA active negation sink current capability.

APPLICATIONS

· SCSI bus termination in computer systems.
· Active termination for SCSI-2 compliant systems.
· Applications requiring precision resistive pull-up and active termination.
· Systems needing low standby power with disconnect feature.
· Environments requiring current limit and thermal shutdown protection.