TL2217-285

更新时间： 2024-11-26 22:19:35

品牌	Logo	应用领域
德州仪器 - TI		稳压器
页数	文件大小	规格书
6页	81K
描述
FIXED-VOLTAGE REGULATORS FOR SCSI ACTIVE TERMINATION

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TL2217-285 数据手册

TL2217-285

FIXED-VOLTAGE REGULATORS

FOR SCSI ACTIVE TERMINATION

SLVS066F – NOVEMBER 1991 – REVISED JULY 1999

PW PACKAGE

(TOP VIEW)

Fully Matches Parameters for SCSI

Alternative 2 Active Termination

Fixed 2.85-V Output

±1.5% Maximum Output Tolerance

HEAT

SINK

HEAT

SINK

at T = 25°C

1-V Maximum Dropout Voltage

500-mA Output Current

GND

INPUT

GND

OUTPUT

±3% Absolute Output Variation

Internal Overcurrent-Limiting Circuitry

Internal Thermal-Overload Protection

Internal Overvoltage Protection

HEAT

SINK

HEAT

SINK

HEAT SINK – These pins have an internal

resistiveconnectiontogroundandshould

be grounded or electrically isolated.

description

The TL2217-285 is a low-dropout (1 V) fixed-

voltage regulator specifically designed for small

computer systems interface (SCSI) alternative 2

active signal termination. The TL2217-285 1-V

maximum dropout ensures compatibility with

existing SCSI systems, while providing a wide

TERMPWR voltage range. At the same time, the

±1.5%initial tolerance on its 2.85-V outputvoltage

ensures a tighter line-driver current tolerance,

thereby increasing system noise margin.

†

KC PACKAGE

(TOP VIEW)

OUTPUT

GND

INPUT

GND

†

KTP PACKAGE

(TOP VIEW)

The fixed 2.85-V output voltage of TL2217-285

supports the SCSI alternative 2 termination

standard, while reducing system power

consumption. The 1-V maximum dropout voltage

brings increased TERMPWR isolation, making

thedeviceidealforbattery-poweredsystems. The

TL2217-285, with internal current limiting,

overvoltage protection, ESD protection, and

thermal protection, offers designers enhanced

system protection and reliability.

OUTPUT

GND

INPUT

†

The GND terminal is in electrical contact with

the mounting base.

When configured as a SCSI active terminator, the TL2217-285 low-dropout regulator eliminates the 220-Ω and

330-Ω resistors required for each transmission line with a passive termination scheme, reducing significantly

the continuous system-power drain. When placed in series with 110-Ω resistors, the device matches the

impedance level of the transmission cable and eliminates reflections.

The TL2217-285 is characterized for operation over the virtual junction temperature range of 0°C to 125°C.

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.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6

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与TL2217-285相关器件

型号	品牌	获取价格	描述	数据表
TL2217-285KC	TI	获取价格	FIXED-VOLTAGE REGULATORS FOR SCSI ACTIVE TERMINATION
TL2217-285KTP	TI	获取价格	FIXED-VOLTAGE REGULATORS FOR SCSI ACTIVE TERMINATION
TL2217-285KTPR	TI	获取价格	暂无描述
TL2217-285N	TI	获取价格	暂无描述
TL2217-285PW	TI	获取价格	FIXED-VOLTAGE REGULATORS FOR SCSI ACTIVE TERMINATION
TL2217-285PWLE	TI	获取价格	暂无描述
TL2217-285PWR	TI	获取价格	暂无描述
TL2217-285Y	TI	获取价格	FIXED-VOLTAGE REGULATORS FOR SCSI ACTIVE TERMINATION
TL2218	TI	获取价格	EXCALIBUR CURRENT-MODE SCSI TERMINATOR
TL2218-285	TI	获取价格	EXCALIBUR CURRENT-MODE SCSI TERMINATOR

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