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Fabricante

LX5247CPW

9 - LINE LVD SCSI TERMINATOR

Microsemi Corporation 

UltraMAX

PRODUCT DATABOOK 1996/1997

LX5245/5246/5247

9-LINE LVD SCSI TERMINATOR

PRELIMINARY 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

Signal Line Voltage

Disconnect Input Voltage

Operating Junction Temperature Range

LX5245 / 5246/5247

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: LX5245/47 = L, LX5246 = H. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to

the ambient temperature.)

Parameter

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

Symbol

Test Conditions

LX5245 / 5246

Units

Min. Typ. Max.

LVD ICC

VOM

VOS

ZD

ZCM

Co

ILeak

tDF

All term lines = Open

DISCONNECT: LX5245/47 = H, LX5246 = L

Open circuit between - and + (see Note 3)

VOD = -1V to 1V

0V to 2.5V

DISCONNECT: LX5245/47 = H, LX5246 = L

DISCONNECT: LX5245/47 = H, LX5246 = L, VLINE = 0 to 4V, TA=25°C

DISCONNECT: LX5245/47 = H, LX5246 = L, VTERM = 0V, VLINE = 2.7V

DIFFSENSE = 1.4V to 0V

VDIFF

IDIFF

ISINK(DIFF)

ILEAK(DIFF)

DIFFSENSE = 0V

VIN = 2.75V

DISCONNECT: LX5245/47 = H, LX5246 = L, TA = 25°C

VTH

IIH DISCONNECT: LX5245/47 = 0V

DISCONNECT: LX5246 = 3.3V

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

10 µA

Note 3. Open circuit failsafe voltage.

Copyright © 2000

Rev. 0.6 10/00

3

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