2

UCC5638

(TOP VIEW)

FQP Package

ABSOLUTE MAXIMUM RATINGS

TRMPWR Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6V

Signal Line Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V to 5V

Package Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2W

Storage Temperature . . . . . . . . . . . . . . . . . . . –65°C to +150°C

Junction Temperature . . . . . . . . . . . . . . . . . . . –55°C to +150°C

Lead Temperature (Soldering, 10 sec.) . . . . . . . . . . . . . +300°C

Recommended Operating Conditions . . . . . . . . . 2.7V to 5.25V

Currents are positive into negative out of the specified terminal.

Note: Consult Packaging Section of Databook for thermal limi-

tations and considerations of package.

RECOMMENDED OPERATING CONDITIONS

TRMPWR Voltage . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.25V

Temperature Ranges . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C

12

11

10

9

13

8

7

6

5

4

3

2

1

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

48

47

46

45

44

43

42

41

40

39

38

37

L15+

L15–

TRMPWR

HS/GND

HS/GND

HS/GND

L1–

L1+

REG

HS/GND

HS/GND

HS/GND

L9–

L10+

L9+

DIFFSENS

DISCNCT

HS/GND

DIFFB

HS/GND

HS/GND

L8+

L8–

GND

HS/GND

HS/GND

HS/GND

L4+

L3–

L3+

L2–

L2+

L4–

L5+

L6+

L5–

L7+

L6–

L7–

L11+

L11–

L10–

L12–

L13+

L12+

L14+

L14–

L13–

CONNECTION DIAGRAMS

TRMPWR = 3.3V.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

TRMPWR Supply Current Section

TRMPWR Supply Current

LVD SCSI Mode

20

25

mA

SE SCSI Mode

1.6

10

mA

Disabled Terminator

250

400

A

Regulator Section

1.25V Regulator

LVD SCSI Mode

1.15

1.25

1.35

V

1.25V Regulator Source Current

–375

–700

–1000

mA

1.25V Regulator Sink Current

170

300

700

mA

1.3V Regulator

Diff Sense

1.2

1.3

1.4

V

1.3V Regulator Source Current

–15

–5

mA

1.3V Regulator Sink Current

50

200

A

2.7V Regulator

SE SCSI Mode

2.5

2.7

3.0

V

2.7V Regulator Source Current

–375

–700

–1000

mA

2.7V Regulator Sink Curren

170

300

700

mA

Differential Termination Section

Differential Impedance

100

105

110

Common Mode Impedence

(Note 2)

110

150

165

Differential Bias Voltage

100

125

mV

Common Mode Bias

1.15

1.25

1.35

V

Output Capacitance

Single Ended Measurement to Ground (Note 1)

3

pF