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

30mA

Forward Current

10mA

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

Limit

Limit

Limit

Limit

Limit

(Notes

5, 8)

(Note 6)

(Note 5)

(Note 6)

(Note 5)

(Note 6)

Reverse Breakdown

T

1.235

1.223

1.223

1.205

V(Min)

Voltage

10µA

≤ I

R

≤ 20mA

1.247

1.247

1.260

V(Max)

Minimum Operating

8

10

20

15

20

15

20

µA

Current

LM385M3-1.2

10

15

(Max)

Reverse Breakdown

10µA

≤ I

R

≤ 1mA

1

1.5

1

1.5

1

1.5

mV

Voltage Change

(Max)

with Current

1mA

≤ I

R

≤ 20mA

10

20

20

25

20

25

mV

(Max)

Reverse Dynamic

I

1

Ω

Impedance

Wideband Noise

I

60

µV

(rms)

10Hz

≤ f ≤ 10kHz

Long Term Stability

I

Hr,

20

ppm

T

Average

Temperature

I

Coefficient (Note 7)

X Suffix

30

30

ppm/˚C

Y Suffix

50

50

ppm/˚C

All Others

150

150

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

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-1.2 for military specifications.

LM185

150˚C

LM285

125˚C

LM385

100˚C

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