LM555QML datasheet(6/16 Pages) TI1

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Electrical Characteristics (Continued)

AC Parameters

The following conditions apply to all the following parameters, unless otherwise specified.

AC:

+5V

≤ V

≤ +15V

Symbol

Parameter

Conditions

Notes

Min

Max

Unit

Sub-

groups

Rise Time

Trig = 5V

(Note 5)

250

9, 10

(Note 5)

400

Fall Time

Trig = 5V

(Note 5)

250

9, 10

(Note 5)

400

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed

specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test

conditions.

Note 2:

The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature), θJA (package

junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is PDmax =(TJmax -TA)/θJA

or the number given in the Absolute Maximum Ratings, whichever is lower.

Note 3: Human body model, 1.5K

Ω in series with 100pF.

Note 4: Guaranteed by tests at VCC = 15V.

Note 5: Guaranteed parameter, not tested.

Note 6: No protection against excessive pin 7 current is necessary providing the package dissipation rating will not be exceeded.

Note 7: This will determine the maximum value of RA +RB for 15V operation. The maximum total (RA +RB)is20MΩ.

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