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LX5248 Datasheet(PDF) 3 Page - Microsemi Corporation

Part No. LX5248
Description  9 - LINE LVD SCSI TERMINATOR
Download  6 Pages
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Maker  MICROSEMI [Microsemi Corporation]
Homepage  http://www.microsemi.com
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LX5248 Datasheet(HTML) 3 Page - Microsemi Corporation

   
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9-L IN E LVD SCSI T ERMIN ATOR
LX5248/LX5249
PRODUCT D A T ABOOK 1996/1997
3
Copyright © 2001
Rev. 0.6 1/01
P RELIMINA R Y D AT A S HEET
UltraMAX
Termpwr Voltage
V
TERM
Signal Line Voltage
Disconnect Input Voltage
Operating Junction Temperature Range
LX5248 / LX5249
3.0
5.25
V
0
5.0
V
0V
TERM
V
0
70
°C
RECOMMENDED OPER A TING CONDITIONS
(Note 2)
Parameter
Symbol
Units
Recommended Operating Conditions
Min.
Typ.
Max.
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, these specifications apply over the operating ambient temperature range of 0°C
≤ T
A ≤ 70°C.
TermPwr = 3.3V,
DISCONNECT: LX5248/49 = L. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient
temperature.)
Parameter
Symbol
Test Conditions
Units
LX5248 / 5249
Min.
Typ.
Max.
21
25
mA
5
10
µA
1.125
1.25
1.375
V
100
112
125
mV
100
105
110
100
200
300
2.5
pF
0
2
µA
1
µA
100
150
ms
LVD Terminator Section
TermPwr Supply Current
LVD I
CC
All term lines = Open
DISCONNECT: LX5248/49 = H
Common Mode Voltage
V
CM
Offset Voltage (Fail Safe Bias Voltage)
V
FSB
Open circuit between - and + (see Note 3)
Differential Terminator Impedance
Z
D
V
OD = -1V to 1V
Common Mode Impedance
Z
CM
0V to 2.5V
Output Capacitance
C
O
DISCONNECT: LX5248/49 = H
Output Leakage
I
LEAK
DISCONNECT: LX5248/49 = H, V
LINE = 0 to 4V, TA=25°C
DISCONNECT: LX5248/49 = H, V
TERM = 0V, VLINE = 2.7V
Mode Change Delay
t
DF
DIFFSENSE = 1.4V to 0V
Note 2. Range over which the device is functional.
DISCONNECT Threshold
V
TH
Input Current
I
IL
DISCONNECT: LX5248/49 = 0V
0.8
2.0
V
10
µA
DISCONNECT Section
DIFFSENSE Section
1.2
1.3
1.4
V
5.0
15.0
mA
200
µA
10
µA
DIFFSENSE Output Voltage
V
DIFF
DIFFSENSE Output Source Current
I
DIFF
DIFFSENSE = 0V
DIFFSENSE Sink Current
I
SINK (DIFF)
V
IN = 2.75V
DIFFSENSE Output Leakage
I
SINK (DIFF)
DISCONNECT: LX5248/49 = H, T
A = 25°C
Note 3. Open circuit failsafe voltage.
MASTER / SLAVE Threshold
V
TH (MS)
Input Current
I
IL (MS)
MASTER / SLAVE: LX5248/49 = 0V
0.8
2.0
V
10
µA
MASTER / SLAVE Section


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