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參數(shù)資料
| 型號(hào)： | UC5603DP |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Very low drop voltage regulators with inhibit |
| 中文描述： | 終結(jié)者 |
| 文件頁(yè)數(shù)： | 1/6頁(yè) |
| 文件大小： | 386K |
| 代理商： | UC5603DP |
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
The UC5602 is a pin compatible version of its predecessor, the UC5601,
and is targeted for high volume applications which require active termina-
tion, but not the high performance of the UC5601. The major differences
are relaxed output current and termination tolerances, and the absence of
low side clamps.
The UC5602 provides 18 lines of active termination for a SCSI (Small
Computer Systems Interface) parallel bus. The SCSI-2 standard recom-
mends active termination at both ends of the cable segment, and SCSI-3
will make it a requirement.
The UC5602 provides a disconnect feature which, when opened or driven
high, will disconnect all terminating resistors, and disables the regulator;
greatly reducing standby power. The output channels remain high imped-
ance even without Termpwr applied.
Internal circuit trimming is utilized, first to trim the impedance to a 7% toler-
ance; and then most importantly, to trim the output current 7% tolerance,
as close to the max SCSI as possible, which maximizes noise margin in
fast SCSI operation.
Other features include thermal shutdown, current limit, and 40mA of active
negation sink current capability.
This device 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.
UC5602
SCSI Active Terminator
FEATURES
DESCRIPTION
BLOCK DIAGRAM
Circuit Design Patented
10/94
UDG-94052
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UC5603DPG4 | 功能描述:SCSI 接口集成電路 9line 5V SE RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| UC5603DPR | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:9-LINE SCSI ACTIVE TERMINATOR |
| UC5603DPRTR | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:9-LINE SCSI ACTIVE TERMINATOR |
| UC5603DPTR | 功能描述:SCSI 接口集成電路 9Line 5V SE Term RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| UC5603DPTRG4 | 功能描述:SCSI 接口集成電路 9Line 5V SE Term RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
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