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UC5601

Features: · Complies with SCSI, 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 Shut...

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SeekIC No. : 004535697 Detail

UC5601: Features: · Complies with SCSI, SCSI-2 Standards· 10pF Channel Capacitance During Disconnect· Active Termination for 18 Lines · Logic Command Disconnects all Termination Lines· Low Supply Current in...

UC5601 Data Sheet

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Part Number:
UC5601
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/21

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Product Details

Description



Features:

· Complies with SCSI, 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


Pinout

Connection Diagram


Specifications

Termpwr Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7V
Signal Line Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . 0V to +7V
Regulator Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A
Storage Temperature . . . . . . . . . . . . . . . . . . -65°C to +150°C
Operating Temperature . . . . . . . . . . . . . . . . .-55°C to +150°C
Lead Temperature (Soldering, 10 Sec.) . . . . . . . . . . . . .+300°C
 
Unless otherwise specified all voltages are with respect to Ground. Currents are positive into, negative out of the specified terminal.
Consult Packaging Section of Unitrode Integrated Circuits databook for thermal limitations and considerations of packages.


Description

The UC5601 provides precision resistive pull-up to a 2.9V reference for all 18 lines in a Small Computer Systems Interface (SCSI) bus cable. The SCSI-2 standard recommends active termination at both ends of every cable segment utilizing single ended drivers and receivers.

Internal circuit trimming of UC5601 is utilized, first to reduce resistor tolerances to ±3% and then to adjust the regulator's output voltage to insure termination current accuracy of ±3%.

The UC5601 provides a disconnect feature which, upon a logic command, disconnects all terminating resistors, and turns off the regulator; greatly reducing standby power.

Other features of UC5601 include negative clamping on all signal lines, 20mA of active negation sink current capability, regulator current limiting, and thermal shutdown protection.

This UC5601 is offered 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.




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