LM385BXM-1.2 datasheet(3/10 Pages) NSC

3 / 10 page

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

(Note 2)

Reverse Current

30 mA

Forward Current

10 mA

Operating Temperature Range (Note 3)

LM185-1.2

−55˚C to +125˚C

LM285-1.2

−40˚C to +85˚C

LM385-1.2

0˚C to 70˚C

Storage Temperature

−55˚C to +150˚C

Soldering Information

TO-92 package: 10 sec.

260˚C

TO-46 package:10 sec.

300˚C

SO and SOT Pkg.

Vapor phase (60 sec.)

215˚C

Infrared (15 sec.)

220˚C

See AN-450 “Surface Mounting Methods and Their Effect

on Product Reliability” for other methods of soldering

surface mount devices.

Electrical Characteristics (Note 4)

LM185-1.2

LM185BX-1.2

LM385B-1.2

LM185BY-1.2

LM385BX-1.2

LM385-1.2

LM285-1.2

LM385BY-1.2

Units

Parameter

Conditions

Typ

LM285BX-1.2

(Limit)

LM285BY-1.2

Tested

Design

Tested

Design

Tested

Design

Limit

(Notes

5, 8)

(Note 6)

(Note 5)

(Note 6)

(Note 5)

(Note 6)

Reverse Breakdown

TA = 25˚C,

1.235

1.223

1.205

V(Min)

Voltage

10 µA

≤ I

R ≤ 20 mA

1.247

1.260

V(Max)

Minimum Operating

µA

Current

LM385M3-1.2

(Max)

Reverse Breakdown

10 µA

≤ I

R ≤ 1mA

1.5

Voltage Change

(Max)

with Current

1 mA

≤ I

R ≤ 20 mA

(Max)

Reverse Dynamic

IR = 100 µA, f = 20 Hz

Ω

Impedance

Wideband Noise

IR = 100 µA,

µV

(rms)

10 Hz

≤ f ≤ 10 kHz

Long Term Stability

IR = 100 µA, T = 1000 Hr,

ppm

TA = 25˚C ±0.1˚C

Average Temperature

IR = 100 µA

Coefficient (Note 7)

X Suffix

ppm/˚C

Y Suffix

ppm/˚C

All Others

150

ppm/˚C

(Max)

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

tended 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-1.2 for military specifications.

Note 3: For elevated temperature operation, Tj max is:

LM185

150˚C

LM285

125˚C

LM385

100˚C

Thermal Resistance

TO-92

TO-46

SO-8

SOT23

JA (junction to ambient)

180˚C/W (0.4" leads)

440˚C/W

165˚C/W

283˚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.

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