LM385-1.2LP datasheet(3/15 Pages) TI

3 / 15 page

LM2851.2, LM3851.2, LM385B1.2

MICROPOWER VOLTAGE REFERENCES

SLVS075H − APRIL 1989 − REVISED FEBRUARY 2005

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†

Reverse current, IR

30 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Forward current, IF

10 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance,

θJA (see Notes 1 and 2): D package

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

LP package

140

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . .

PS package

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . .

PW package

149

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . .

Operating virtual junction temperature, TJ

150

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds

260

°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 under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES:

1. 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. Operation at the absolute maximum TJ of 150°C can affect reliability.

2. The package thermal impedance is calculated in accordance with JESD 51-7.

recommended operating conditions

MIN

MAX

UNIT

Reference current

0.01

Operating free-air temperature range

LM285-1.2

−40

°C

Operating free-air temperature range

LM385-1.2, LM385B-1.2

°C

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