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UCC5617DWP PDF预览

UCC5617DWP

更新时间: 2024-11-21 02:58:39
品牌 Logo 应用领域
德州仪器 - TI 信息通信管理光电二极管接口集成电路
页数 文件大小 规格书
5页 316K
描述
18-Line SCSI Terminator (Reverse Disconnect)

UCC5617DWP 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:SOP, SOP28,.4针数:28
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:5.8差分输出:NO
接口集成电路类型:SCSI BUS TERMINATORJESD-30 代码:R-PDSO-G28
JESD-609代码:e4长度:17.9 mm
湿度敏感等级:2功能数量:1
信号线数量:18端子数量:28
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP28,.4封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
电源:5 V标称上拉电阻:110 Ω
认证状态:Not Qualified座面最大高度:2.65 mm
子类别:Bus Terminators最大供电电压:5.25 V
最小供电电压:4 V标称供电电压:4.75 V
表面贴装:YES技术:BICMOS
温度等级:COMMERCIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:7.5 mm

UCC5617DWP 数据手册

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UCC5617  
18-Line SCSI Terminator (Reverse Disconnect)  
FEATURES  
DESCRIPTION  
Complies with SCSI, SCSI-2,  
SCSI-3 and FAST-20 Standards  
The UCC5617 provides 18 lines of active termination for a SCSI (Small  
Computers Systems Interface) parallel bus. The SCSI standard recommends  
and Fast-20 (Ultra) requires active termination at both ends of the cable.  
2pF Channel Capacitance  
During Disconnect  
Pin for pin compatible with the UC5609, the UCC5617 is ideal for high perfor-  
mance 5V SCSI systems, Termpwr 4.0V to 5.25V. During disconnect the sup-  
ply current is only 50µA typical, which makes the IC attractive for lower pow-  
ered systems.  
50µA Supply Current in  
Disconnect Mode  
110Termination  
The UCC5617 is designed with a low channel capacitance of 2pF, which elim-  
inates effects on signal integrity from disconnected terminators at interim  
points on the bus.  
SCSI Hot Plugging Compliant,  
10nA Typical  
The power amplifier output stage allows the UCC5617 to source full termina-  
tion current and sink active negation current when all termination lines are  
actively negated.  
+400mA Sinking Current for  
Active Negation  
650mA Sourcing Current for  
The UCC5617, as with all Unitrode terminators, is completely hot pluggable  
and appears as high impedance at the terminating channels with  
TRMPWR=0V or open.  
Termination  
Trimmed Impedance to 5%  
Internal circuit trimming is utilized, first to trim the 110impedance, and then  
most importantly, to trim the output current as close to the maximum SCSI-3  
specification as possible, which maximizes noise margin in fast SCSI opera-  
tion.  
Other features include thermal shutdown and current limit.  
This device is offered in low thermal resistance versions of the industry stan-  
dard 28 pin wide body SOIC, TSSOP and PLCC.  
BLOCK DIAGRAM  
UDG-96073  
Circuit Design Patented  
4/97  

UCC5617DWP 替代型号

型号 品牌 替代类型 描述 数据表
UCC5618DWP TI

完全替代

18-Line SCSI Terminator
UC5601DWP TI

类似代替

SCSI Active Terminator
UC5601DWPTR TI

类似代替

SCSI Active Terminator

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