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LP239_06 Datasheet(PDF) 2 Page - Texas Instruments

Part No. LP239_06
Description  LOW-POWER QUAD DIFFERENTIAL COMPARATORS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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The LP239 is obsolete
and is no longer supplied.
LP239, LP339, LP2901
LOW POWER QUAD DIFFERENTIAL COMPARATORS
SLCS004B − OCTOBER 1987 − REVISED SEPTEMBER 2004
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
schematic diagram (each comparator)
5
µA
IN+
IN−
GND
OUT
6
µA
0.2
µA
VCC
0.2
µA
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC (see Note 1)
36 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential input voltage, VID (see Note 2)
±36 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (either input)
−0.3 V to 36 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input current, VI ≤ −0.3 V (see Note 3)
−50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duration of output short-circuit to ground (see Note 4)
Unlimited
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total dissipation (see Note 5)
See Dissipation Rating Table
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: LP239
−25
°C to 85°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LP339
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LP2901
−40
°C to 85°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Notes 6 and 7): D package
86
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package
80
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature, TJ
150
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature range 1,6 mm (1/16 inch) from case for 60 seconds: J package
300
°C
. . . . . . . . . . . . . . . .
Storage temperature range, Tstg
−65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
† 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 recommended operating conditions is not implied.
Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. All voltage values, except differential voltages, are with respect to the network ground.
2. Differential voltages are at IN+ with respect to IN −.
3. This input current only exists when the voltage at any of the inputs is driven negative. The current flows through the collector-base
junction of the input clamping device. In addition to the clamping device action, there is lateral n-p-n parasitic transistor action. This
action is not destructive, and normal output states are reestablished when the input voltage returns to a value more positive than
− 0.3 V at TA = 25°C.
4. Short circuits between outputs to VCC can cause excessive heating and eventual destruction.
5. If the output transistors are allowed to saturate, the low-bias dissipation and the on-off characteristics of the outputs keep the
dissipation very small (usually less than 100 mW).
6. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) − TA)/θJA. Operating at the absolute maximum TJ of 150°C can impact reliability.
7. The package thermal impedance is calculated in accordance with JESD 51-7.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
J
1025 mW
8.2 mW/
°C
656 mW
533 mW




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