LX5241 Ver la hoja de datos (PDF) - Microsemi Corporation
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LX5241 Datasheet PDF : 7 Pages
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UltraMAX
PRODUCT DATABOOK 1996/1997
LX5241/5242/5243
MULTIMODE SCSI TERMINATOR
PRODUCTION DATA SHEET
R E C O M M E N D E D O P E R A T I N G C O N D I T I O N S (Note 2)
Parameter
Symbol
Recommended Operating Conditions
Min.
Typ.
Max.
Termpwr Voltage LVD
SE
VTERM
3.0
3.5
5.25
5.25
Signal Line Voltage
0
5.0
Disconnect Input Voltage
Operating Virtual Junction Temperature Range
0
VTERM
LX5241C / 5242C / 5243C
0
70
Note 2. Range over which the device is functional.
Units
V
V
V
V
°C
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, these specifications apply over the operating ambient temperature range of 0°C ≤ TA ≤ 70°C, TermPwr = 4.75V.
For the LX5241/5243 DISCONNECT = L, for the LX5242 DISCONNECT = H. Low duty cycle pulse testing techniques are used which maintains junction and
case temperatures equal to the ambient temperature.)
Parameter
Symbol
Test Conditions
LVD Terminator Section
TermPwr Supply Current
LVD ICC
Common Mode Voltage
VCM
Offset Voltage
VFSB
Differential Terminator Impedance ZD
Common Mode Impedance
ZCM
Output Capacitance
CO
Output Leakage
ILEAK
Mode Change Delay
DIFFSENSE Section
DIFFSENSE Output Voltage
DIFFSENSE Output Source Current
DIFFSENSE Sink Current
DIFFSENSE Output Leakage
tDF
VDIFF
IDIFF
ISINK(DIFF)
ILEAK(DIFF)
Single-Ended Termination Section
Termpwr Supply Current
SE ICC
Terminator Output High Volt
VO
Output Current
IO
Sink Current
ISINK
Output Capacitance
CO
Leakage Current
ILEAK
Note 3. Open circuit failsafe voltage.
All term lines = Open
LX5241/5243: DISCONNECT > 2.0V, LX5242: DISCONNECT < 0.8V
Open circuit between - and + (see Note 3)
VOUT Differential = -1V to 1V
0V to 2.5V
LX5241/5243: DISCONNECT > 2.0V, LX5242: DISCONNECT < 0.8V
LX5241/5243: DISCONNECT > 2.0V, LX5242: DISCONNECT < 0.8V,
VLINE = 0 to 4V, TA = 25°C
LX5241/5243: DISCONNECT > 2.0V, LX5242: DISCONNECT < 0.8V,
VTERM = 0V, VLINE = 2.7V
DIFFSENSE = 1.4V to 0V
VDIFF = 0V
VDIFF = 2.75V
LX5241/5243: DISCONNECT > 2.0V, LX5242: DISCONNECT < 0.8V,
TA = 25°C
All term lines = Open, Master/Slave = 0V
All term lines = 0.2V, Master/Slave = 0V
LX5241/5243: DISCONNECT > 2.0V, LX5242: DISCONNECT < 0.8V
VOUT = 0.2V
VOUT = 4V, All lines
LX5241/5243: DISCONNECT > 2.0V, LX5242: DISCONNECT < 0.8V
LX5241/5243: DISCONNECT > 2.0V, LX5242: DISCONNECT < 0.8V,
VOUT = 0 to 4V, TA = 25°C
LX5241/5243: DISCONNECT > 2.0V, LX5242: DISCONNECT < 0.8V,
VTERM = Open, VLINE = 2.7V, TA = 25°C
LX5241 / 5242 / 5243 Units
Min. Typ. Max.
25
30
mA
15
35
µA
1.125 1.25 1.375 V
100 112 125 mV
100 105 110
Ω
100 200 300
Ω
2.5
pF
2
µA
1
µA
115
ms
1.2 1.3 1.4
V
5.0
15.0 mA
200 µA
10
µA
7
10
mA
214 226 mA
15
35
µA
2.6 2.85
V
21
23
24
mA
45
65
mA
2.5
pF
2
µA
1
µA
Copyright © 2000
Rev. 1.4 11/00
3
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