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DS2129

LVD SCSI 27-Line Regulator

Dallas Semiconductor -> Maxim Integrated 

LVD SCSI 27-Line Regulator

ABSOLUTE MAXIMUM RATINGS

TERMPWR, DIFFSENSE, REG1, REG2 ....................-0.3V, +6.0V

REG1, REG2 Continuous Output Current.......................±200mA

Continuous Power Dissipation (TA = +70°C)

16-Pin SO (derate 13mW/°C above +70°C)........................1W

Operating Temperature Range...............................0°C to +70°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Soldering Temperature .......................................See IPC/JEDEC

J-STD-020A Specification

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(TERMPWR = 3.3V, TA = 0°C to +70°C, unless otherwise noted.) (Note 1)

PARAMETER

TERMPWR

TERMPWR Supply Current

TERMPWR Voltage

VREF REGULATOR

0.75V Regulator Output Voltage,

REG2

SYMBOL

ITERM

VTERM

No load

CONDITIONS

V075 IOUT = ±125mA

MIN TYP MAX UNITS

40

mA

2.7

5.25

V

0.7

0.75

0.8

V

0.75V Regulator Source Current,

REG2

ISRC_075 VOUT = 0.25V

-200

mA

0.75V Regulator Sink Current,

REG2

ISINK_075 VOUT = 1.25V

+200

mA

0.75V Regulator Source Current

Limit

ISRCL_075 VOUT = 0V

-700

mA

0.75V Regulator Sink Current

Limit

ISINKL_075 VOUT = 3.3V

+700 mA

1.75V Regulator Output Voltage,

REG1

V175 IOUT = ±125mA

1.7

1.75

1.8

V

1.75V Regulator Source Current,

REG1

ISRC_175 VOUT = 1.25V

-200

mA

1.75V Regulator Sink Current,

REG1

ISINK_175 VOUT = 2.25V

+200

mA

1.75V Regulator Source Current

Limit

ISRCL_175 VREF = 0V

-700

mA

1.75V Regulator Sink Current

Limit

DIFFSENSE OUTPUT

DIFFSENSE Driver Output

Voltage

ISINKL_175 VREF = 3.3V

VDSO -5mA ≤ IDIFFSENSE ≤ 50µA

+700 mA

1.2

1.3

1.4

V

DIFFSENSE Driver Source

Current

DIFFSENSE Driver Sink Current

IDSH

IDSL

VDIFFSENSE = 0V

VDIFFSENSE = 2.4V

-5

-15

mA

100

200

µA

2 _____________________________________________________________________

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