LM385Z datasheet(4/14 Pages) NSC

4 / 14 page

Electrical Characteristics (Note 4) (Continued)

Parameter

Conditions

LM185, LM285

LM385

Typ

LM185BX,

LM185BY

Typ

LM385BX,

LM185B,

LM285BX,

LM285

LM385BY

LM385

Units

LM285BY

(Limit)

Tested Design Tested Design

Limit

(Note

Average

Temperature

R = 100µA

X Suffix

ppm/˚c

Coefficient

(Note 7)

Y Suffix

(max)

All Others

150

Long Term

Stability

R = 100µA, T = 1000

Hr,

ppm

A = 25˚C ± 0.1˚C

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

intended to be 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.

Note 2: Refer to RETS185H for military specifications.

Note 3: For elevated temperature operation, TJmax is:

LM185

150˚C

LM285

125˚C

LM385

100˚C

Thermal Resistance

TO-92

TO-46

SO-8

JA (Junction to Ambient)

180˚C/W (0.4" leads)

440˚C/W

165˚C/W

170˚C/W (0.125" leads)

JC (Junction to Case)

N/A

80˚C/W

N/A

Note 4: Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA =TJ = 25˚C. Unless otherwise specified, all

parameters apply for VREF < VOUT < 5.3V.

Note 5: Guaranteed and 100% production tested.

Note 6: Guaranteed, but not 100% production tested. These limits are not to be used to calculate average outgoing quality levels.

Note 7: The average temperature coefficient is defined as the maximum deviation of reference voltage at all measured temperatures from TMIN to TMAX, divided

by TMAX −TMIN. The measured temperatures are −55, −40, 0, 25, 70, 85, 125˚C.

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