DS21455N 查看數據表（PDF） - Dallas Semiconductor -> Maxim Integrated

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DS21455N

Quad T1/E1/J1 Transceivers

Dallas Semiconductor -> Maxim Integrated 

37. OPERATING PARAMETERS

DS21455/DS21458 Quad T1/E1/J1 Transceivers

ABSOLUTE MAXIMUM RATINGS

Voltage Range on Any Pin Relative to Ground……………………………………………..-1.0V to +6.0V

Operating Temperature Range for DS21455/DS21458………………………………………0°C to +70°C

Operating Temperature Range for DS21455N/DS21458N………………………………...-40°C to +85°C

Storage Temperature Range……………………………………………………………….-55°C to +125°C

Soldering Temperature ………………………………………………………..See IPC/JEDEC J-STD-20A

This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation

sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time can affect reliability.

THERMAL CHARACTERISTICS

PARAMETER

Ambient Temperature

Junction Temperature

Theta-JA (qJA) in Still Air for 100-pin LQFP

Theta-JA (qJA) in Still Air for 10mm

CSBGA pin LQFP

MIN

-40°C

—

—

—

TYP

—

—

MAX

+85°C

+125°C

—

—

NOTES

1

2

2

NOTES:

1) The package is mounted on a four-layer JEDEC standard test board.

2) Theta-JA (qJA) is the junction-to-ambient thermal resistance, when the package is mounted on a four-

layer JEDEC standard test board.

THETA-JA (qJA) vs. AIRFLOW

FORCED AIR

(meters per second)

0

1

2.5

THETA-JA (qJA)

100-PIN LQFP

THETA-JA (qJA)

10mm CSBGA

251 of 270

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