LX5248/LX5249

PRODUCT D A T ABOOK 1996/1997

3

Copyright © 2001

Rev. 0.6 1/01

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

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

Ω

100

200

300

Ω

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

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

DISCONNECT: LX5248/49 = H, V

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

DIFFSENSE Output Leakage

I

SINK (DIFF)

DISCONNECT: LX5248/49 = H, T

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