3

UC5607

Figure 1: Typical SCSI Bus Configuration Utilizing UC5607 Device

APPLICATION INFORMATION

UDG-98136

UNITRODE CORPORATION

7 CONTINENTAL BLVD. • MERRIMACK, NH 03054

TEL. (603) 424-2410

_FAX (603) 424-3460

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

S

Supply Current Section

Termpwr Supply Current

All termination lines = Open

30

45

mA

All termination lines = 0.5V

420

470

mA

Power Down Mode

DISCNCT1 = DISCNCT2 = 0V

300

500

mA

Output Section (Terminator Lines)

Terminator Impedance

102

110

118

Ohms

97

110

129

Ohms

Output High Voltage

°C

2.6

2.9

3.1

V

2.55

2.9

3.2

V

Max Output Current

–19.5

–21.9

–22.4

mA

–21.9

–22.4

mA

Max Output Current

–18.0

–21.9

–22.4

mA

–21.9

–22.4

mA

Output Leakage

DISCNCT1 = DISCNCT2 = 0V, TRMPWR = 0V to 5.25V

10

400

nA

Output Capacitance

DISCNCT1 = DISCNCT2 = 0V (Note 2)

8

10

pF

Regulator Section

Regulator Output Voltage

All Termination Lines = 5V

2.7

2.9

3.1

V

2.55

2.9

3.2

V

Line Regulation

TRMPWR = 4V to 6V

10

20

mV

Load Regulation

20

50

mV

Note 1: Measuring each termination line while other 17 are low (0.5V).

Note 2: Guaranteed by design. Not 100% tested in production.