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DS2129 - LVD SCSI 27-Line Regulator

General Description

The DS2129 is a triple-output voltage regulator for 27-line, low-voltage-differential (LVD) SCSI termination for SPI-2 and SPI-3 applications using LVD termination networks.

The device provides reference voltages and bias currents for LVD-termination resistor pi (π) networks.

Key Features

  • such as thermal shutdown and active current limiting.
  • 2.7V to 5.25V Operation.
  • Differential Fail-Safe Bias Features.
  • Fully Compliant with SPI-2 and SPI-3 DS2129.

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Datasheet Details

Part number DS2129
Manufacturer Dallas Semiconducotr
File Size 184.20 KB
Description LVD SCSI 27-Line Regulator
Datasheet download datasheet DS2129 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com Rev 1; 2/06 LVD SCSI 27-Line Regulator General Description The DS2129 is a triple-output voltage regulator for 27-line, low-voltage-differential (LVD) SCSI termination for SPI-2 and SPI-3 applications using LVD termination networks. The device provides reference voltages and bias currents for LVD-termination resistor pi (π) networks. With a pi network (475Ω , 121 Ω , 475 Ω ), the DS2129 meets the common-mode bias, differential bias, and termination-impedance requirements of SPI-2 (Ultra2) and SPI-3 (Ultra3). The device also provides a 1.3V output for DIFFSENSE signaling, and includes protection features such as thermal shutdown and active current limiting. ♦ 2.7V to 5.