AD8391 查看數據表（PDF） - Analog Devices

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AD8391

xDSL Line Driver 3 V to 12 V with Power-Down

Analog Devices 

AD8391

ABSOLUTE MAXIMUM RATINGS1

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.6 V

Internal Power Dissipation2

Small Outline Package (R) . . . . . . . . . . . . . . . . . . . 650 mW

Input Voltage (Common-Mode) . . . . . . . . . . . . . . . . . . . . ± VS

Logic Voltage, PWDN . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± VS

Output Short-Circuit Duration

. . . . . . . . . . . . . . . . . . . . . Observe Power Derating Curve

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

Operating Temperature Range . . . . . . . . . . . –40°C to +85°C

Lead Temperature Range (Soldering 10 sec) . . . . . . . . . 300°C

NOTES

1 Stresses above those listed under Absolute Maximum Ratings may cause perma-

nent damage to the device. This is a stress rating only; functional operation of the

device at these or any other conditions above those indicated in the operational

section of this specification is not implied. Exposure to absolute maximum rating

conditions for extended periods may affect device reliability.

2 Specification is for device on a 4-layer board in free air at 85°C: 8-Lead SOIC

package: ␪JA = 100°C/W.

MAXIMUM POWER DISSIPATION

The maximum power that can be safely dissipated by the

AD8391 is limited by the associated rise in junction temperature.

The maximum safe junction temperature for a plastic encapsu-

lated device is determined by the glass transition temperature of

the plastic, approximately 150°C. Temporarily exceeding this

limit may cause a shift in parametric performance due to a change

in the stresses exerted on the die by the package.

To ensure proper operation, it is necessary to observe the maxi-

mum power derating curve.

2.0

TJ = 150؇C

1.5

8-LEAD SOIC PACKAGE

1.0

0.5

0

–50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90

AMBIENT TEMPERATURE – ؇C

Figure 2. Plot of Maximum Power Dissipation

vs. Temperature

Model

AD8391AR

AD8391AR–REEL

AD8391AR–REEL7

AD8391AR–EVAL

ORDERING GUIDE

Temperature

Range

–40°C to +85°C

–40°C to +85°C

–40°C to +85°C

Package

Description

8-Lead SOIC

8-Lead SOIC

8-Lead SOIC

Evaluation Board

Package

Option

R-8

R-8

R-8

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily

accumulate on the human body and test equipment and can discharge without detection. Although

the AD8391 features proprietary ESD protection circuitry, permanent damage may occur on

devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are

recommended to avoid performance degradation or loss of functionality.

–4–

REV. A

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