AD8389 Просмотр технического описания (PDF) - Analog Devices

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AD8389

Triple, 6-Channel LCD Timing Delay-Locked Loop

Analog Devices 

AD8389

ABSOLUTE MAXIMUM RATINGS

Table 2. AD8389 Stress Ratings1

Parameter

Rating

Supply Voltages

AVDDx – AVSSx

3.9 V

DRVDDx – DRVSSx

3.9 V

Input Voltages

Maximum Digital Input Voltage

AVDD + 0.3 V

Minimum Digital Input Voltage

Internal Power Dissipation2

AVSS – 0.3 V

LFCSP Package @ TA = 25°C

Operating Temperature Range

4.8 W

0°C to 85°C

Storage Temperature Range

–65°C to +125°C

Lead Temperature Range (Soldering 10 sec) 300°C

1 Stresses above those listed under the Absolute Maximum Ratings may cause

permanent 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 the absolute maximum ratings for extended periods may

reduce device reliability.

2 48-Lead LFCSP Package:

θJA = 26°C/W (JEDEC Standard 4-layer PCB in still air)

θJC = 20°C/W

EXPOSED PADDLE

To ensure high reliability, the exposed paddle must be soldered

to GND.

MAXIMUM POWER DISSIPATION

The maximum power that can be safely dissipated by the

AD8389 is limited by its junction temperature. The maximum

safe junction temperature for plastic encapsulated devices as

determined by the glass transition temperature of the plastic is

approximately 150°C. Exceeding this limit temporarily may

cause a shift in the parametric performance due to a change in

the stresses exerted on the die by the package. Exceeding a

junction temperature of 175°C for an extended period can

result in device failure.

To ensure operation within the specified operating temperature

range, it is necessary to limit the maximum power dissipation as

follows:

PDMAX = (TJMAX – TA)/θJA

5.0

4.5

4.0

3.5

3.0

2.5

2.0

25

35

45

55

65

75

85

95

AMBIENT TEMPERATURE (°C)

Figure 2. Maximum Power Dissipation vs. Ambient Temperature

ESD 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

this product 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.

Rev. 0 | Page 4 of 12

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