UCC561

更新时间： 2024-11-07 22:49:27

品牌	Logo	应用领域
德州仪器 - TI		调节器
页数	文件大小	规格书
8页	191K
描述
Low Voltage Differential SCSI LVD 27 Line Regulator Set

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UCC561 数据手册

UCC561

www.ti.com

SLUS413B -- MAY 1999 -- REVISED NOVEMBER 2002

LOW-VOLTAGE DIFFERENTIAL SCSI (LVD)

27-LINE REGULATOR SET

FEATURES

DESCRIPTION

The UCC561 low-voltage differential (LVD) regulator

SCSI SPI--2, SPI--3 and SPI--4 LVD SCSI

27-Line, Low-Voltage Differential Regulator

set is designed to provide the correct references

voltages and bias currents for LVD termination resistor

networks (475 9, 121 9, and 475 9). The device also

provides a 1.3-V output for “diff sense” signaling. With

the proper resistor network, theUCC561 solutionmeets

the common mode bias impedance, differential bias,

and termination impedance requirements of SPI--2

(Ultra2), SPI--3 (Ultra3/Ultra160) and SPI--4 (Ultra320).

The UCC561 is not intended for SPI--5 applications.

2.7-V to 5.25-V Operation

Integrated Regulator Set for LVD SCSI

Differential Failsafe Bias

APPLICATIONS

Servers

Workstations

RAID Boxes

This device incorporates into a single monolith, two

sink/source reference voltage regulators, a 1.3-V

buffered output and protection features. The protection

features include thermal shutdown and active

current-limiting circuitry. The UCC561 is offered in

16-pin SOIC (DP) package.

DIFSENS

REG1

REF 1.3 V

1.3 V ±100 mV

TRMPWR

2.7 V TO 5.25 V

REF 1.75 V

1.75 V ±50 mV

200 mA SOURCE/SINK

SOURCE/SINK REGULATOR

REF 0.75V

REG2

0.75 V ±50 mV

200 mA SOURCE/SINK

UDG--98093

PGND

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments

semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date. Products

conform to specifications per the terms of Texas Instruments standard warranty.

Production processing does not necessarily include testing of all parameters.

12 3 4 5 6 7 8

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