LX5248 View Datasheet(PDF) - Microsemi Corporation
Part Name
Description
Manufacturer
LX5248 Datasheet PDF : 6 Pages
| |||
UltraMAX
PRODUCT DATABOOK 1996/1997
9-LINE LVD SCSI TERMINATOR
PRELIMINARY DATA SHEET
LX5248/LX5249
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
Signal Line Voltage
Disconnect Input Voltage
Operating Junction Temperature Range
LX5248 / LX5249
VTERM
3.0
0
0
0
5.25
5.0
VTERM
70
Note 2. Range over which the device is functional.
Units
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 = 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
LVD Terminator Section
TermPwr Supply Current
Common Mode Voltage
Offset Voltage (Fail Safe Bias Voltage)
Differential Terminator Impedance
Common Mode Impedance
Output Capacitance
Output Leakage
Mode Change Delay
DIFFSENSE Section
DIFFSENSE Output Voltage
DIFFSENSE Output Source Current
DIFFSENSE Sink Current
DIFFSENSE Output Leakage
DISCONNECT Section
DISCONNECT Threshold
Input Current
MASTER / SLAVE Section
MASTER / SLAVE Threshold
Input Current
Note 3. Open circuit failsafe voltage.
LVD ICC
VCM
VFSB
ZD
ZCM
CO
ILEAK
tDF
All term lines = Open
DISCONNECT: LX5248/49 = H
Open circuit between - and + (see Note 3)
VOD = -1V to 1V
0V to 2.5V
DISCONNECT: LX5248/49 = H
DISCONNECT: LX5248/49 = H, VLINE = 0 to 4V, TA=25°C
DISCONNECT: LX5248/49 = H, VTERM = 0V, VLINE = 2.7V
DIFFSENSE = 1.4V to 0V
VDIFF
IDIFF
ISINK (DIFF)
ISINK (DIFF)
DIFFSENSE = 0V
VIN = 2.75V
DISCONNECT: LX5248/49 = H, TA = 25°C
VTH
IIL DISCONNECT: LX5248/49 = 0V
VTH (MS)
IIL (MS) MASTER / SLAVE: LX5248/49 = 0V
LX5248 / 5249
Units
Min. Typ. Max.
21
25
mA
5
10
µA
1.125 1.25 1.375 V
100 112 125 mV
100 105 110
Ω
100 200 300
Ω
2.5
pF
0
2
µA
1
µA
100 150
ms
1.2 1.3 1.4
V
5.0
15.0 mA
200 µA
10
µA
0.8
2.0
V
10
µA
0.8
2.0
V
10
µA
Copyright © 2001
Rev. 0.6 1/01
3
Share Link: 