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參數(shù)資料
型號： DS2125+T&R
廠商： Maxim Integrated Products
文件頁數(shù)： 2/7頁
文件大小： 0K
描述： IC TERM SCSI ULT3 LVD/SE 48-LQFP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,000
類型： SCSI，LVD，SE
端子數(shù)： 15
電源電壓： 2.7 V ~ 5.5 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 48-LQFP
供應(yīng)商設(shè)備封裝： 48-LQFP（7x7）
包裝： 帶卷 (TR)
DS2125 Ultra3 LVD/SE SCSI 15-Line Terminator
2 of 7
ABSOLUTE MAXIMUM RATINGS
VREF, ISO, GND, DIFFSENSE, DIFF_CAP, TPWR, RxP, RxN (x = 1 . . . 15)………………………………-0.3V, +6.0V
VREF Continuous Output Current………………………………………………………………………………………±200mA
Continuous Power Dissipation (TA = +70°C), 48-Pin LQFP……………………………………………………………...2W
Operating Temperature Range………………………………………………………………………………….0°C to +70°C
Junction Temperature…………………………………………………………………………………………………...+150°C
Storage Temperature Range………………………………………………………………………………...-65°C to +160°C
Lead Temperature (soldering, 10s)…………………………………………………………………………………….+300°C
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 the absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(TPWR = 3.3V, TA = 0°C to +70°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LVD
2.7
5.5
TPWR Operating Supply
Range
VTPWR
SE
4.0
5.5
V
TPWR SUPPLY CURRENT
ITPWR_LVD
LVD SCSI mode
20
32
mA
ITPWR_SE
SE SCSI mode
1.6
10
mA
TPWR Supply Current
(All Lines Open)
ITPWR_ISO
ISO mode (terminators disabled)
250
750
A
LVD TERMINATION (Applies to each line pair, 1 to 15 in LVD mode)
Differential-Mode
Termination Resistance
RDM
100
110
Common-Mode
Termination Resistance
RCM
RP and RN shorted together
110
165
Differential-Mode Bias
VDM
All lines open
100
125
mV
Common-Mode Bias
VCM
RP and RN shorted together
1.15
1.25
1.35
V
SE TERMINATION (Applies to SE terminators, 1 to 15 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 (Note 2)
104.5
110
115.5
Signal level at 0.2V, all lines low
-21.0
-24
-25.4
Termination Current
(Note 2)
ISE
Signal level at 0.5V
-18.0
-22.4
mA
SE Voltage Reference
VREF
(Note 2)
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 1)
3
pF
VREF REGULATOR
1.25V Regulator Output
Voltage
VREF_LVD
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
1.25V Regulator Line
Regulation
VREF unloaded; vary TPWR from
2.7V to 5.5V
1.0
2.5
%
2.85V Regulator
(Note 2)
2.7
2.85
3.0
V
2.85V Regulator Short-
Circuit Source Current
VREF = 0V (Note 2)
-375
-700
-1000
mA
2.85V Regulator Short-
Circuit Sink Current
VREF = 3.3V (Note 2)
170
300
700
mA
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