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参数资料
| 型号： | DS2127+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/6页 |
| 文件大小： | 0K |
| 描述： | IC TERM SCSI LVD/SE 48-LQFP |
| 标准包装： | 2,000 |
| 类型： | SCSI，LVD，SE |
| 端子数： | 14 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-LQFP |
| 供应商设备封装： | 48-LQFP（7x7） |
| 包装： | 带卷 (TR) |
DS2127
Ultra3 LVD/SE SCSI 14-Line Terminator
2
_____________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(TPWR = VTPWR(MIN) to VTPWR(MAX), TA = 0°C to +70°C, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Voltage Range on All Pins Relative to Ground ......-0.3V to +6.0V
VREF Continuous Output Current....................................±200mA
Operating Temperature Range...............................0°C to +70°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Soldering Temperature .......................................See IPC/JEDEC
J-STD-020A Specification
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LVD
2.7
3.3
5.5
TPWR Operating Supply Range
(Note 1)
VTPWR
SE
4
5.0
5.5
V
TPWR SUPPLY CURRENT
ITPWR_LVD LVD SCSI mode
32
ITPWR_SE
SE SCSI mode
10
mA
TPWR Supply Current (All Lines
Open)
ITPWR_ISO ISO mode (terminators disabled)
750
A
LVD TERMINATION (Applies to each line pair, 1 to 14 in LVD mode)
Differential-Mode Termination
Resistance
RDM
100
110
Common-Mode Termination
Resistance
RCM
RP and RN shorted together
(VCM(MAX) = 2V, VCM(MIN) = 0.5V)
110
165
Differential-Mode Bias
VDM
All lines open
100
125
mV
Common-Mode Bias
VCM
RP and RN shorted together (Note 1)
1.15
1.25
1.35
V
SE TERMINATION (Applies to single-ended terminators, 1 to 14 in SE mode)
Single-Ended Mode Termination
Resistance
RSE
RSE = (VLX - 0.2) / ILX, where VLX = voltage
at terminator pin with pin unloaded and
ILX = current for each terminator pin with
the pin forced to 0.2V
104.5
110
115.5
Signal level at 0.2V, all lines low
-21
-24
-25.4
Termination Current
ISE
Signal level at 0.5V
-18
-22.4
mA
SE Voltage Reference
VREF
2.7
2.85
3.0
V
Pin Leakage
With ISO high
400
nA
Single-Ended GND Resistance
RGND
Measured at RP pins, I = 10mA
20
60
TERMINATOR PIN CAPACITANCE
Terminator Pin Capacitance
CIN
With ISO high (Note 2)
3
pF
VREF REGULATOR
1.25V Regulator Output Voltage
VREF_LVD
0.5V
≤ VCM ≤ 2.0V, VCM applied to all RP
and RN lines simultaneously
1.15
1.25
1.35
V
1.25V Regulator Short-Circuit
Source Current
ISOURCE
VREF = 0V
-375
-700
-1000
mA
1.25V Regulator Short-Circuit
Sink Current
ISINK
VREF = 3.3V
170
300
700
mA
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2129 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:LVD SCSI 27-Line Regulator |
| DS2129S | 功能描述:SCSI 接口集成电路 RoHS:否 制造商:Texas Instruments 工作电源电压:2.7 V to 5.25 V 电源电流:13 mA 最大工作温度:+ 70 C 最小工作温度:0 C 安装风格:SMD/SMT 封装 / 箱体:SSOP-36 封装:Tube |
| DS2129S/R | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:LVD SCSI 27-Line Regulator |
| DS2129S/T | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:LVD SCSI 27-Line Regulator |
| DS2129S/T&R | 功能描述:SCSI 接口集成电路 RoHS:否 制造商:Texas Instruments 工作电源电压:2.7 V to 5.25 V 电源电流:13 mA 最大工作温度:+ 70 C 最小工作温度:0 C 安装风格:SMD/SMT 封装 / 箱体:SSOP-36 封装:Tube |
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