LM134 datasheet(2/14 Pages) NSC

2 / 14 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.

+ to V− Forward Voltage

LM134/LM234/LM334

40V

LM234-3/LM234-6

30V

+ to V− Reverse Voltage

20V

R Pin to V

− Voltage

Set Current

10 mA

Power Dissipation

400 mW

ESD Susceptibility (Note 6)

2000V

Operating Temperature Range (Note 5)

LM134

−55˚C to +125˚C

LM234/LM234-3/LM234-6

−25˚C to +100˚C

LM334

0˚C to +70˚C

Soldering Information

TO-92 Package (10 sec.)

260˚C

TO-46 Package (10 sec.)

300˚C

SO Package

Vapor Phase (60 sec.)

215˚C

Infrared (15 sec.)

220˚C

See AN-450 “Surface Mounting Methods and Their Effect on

Product Reliability” (Appendix D) for other methods of sol-

dering surface mount devices.

Electrical Characteristics (Note 2)

Parameter

Conditions

LM134/LM234

LM334

Units

Min

Typ

Max

Min

Typ

Max

Set Current Error, V

+=2.5V,

10µA

≤ I

SET ≤ 1mA

(Note 3)

1mA < I

SET ≤ 5mA

2µA

≤ I

SET < 10µA

Ratio of Set Current to

100µA

≤ I

SET ≤ 1mA

Bias Current

1mA

≤ I

SET ≤ 5mA

2µA

≤I

SET≤100 µA

Minimum Operating Voltage

2µA

≤ I

SET ≤ 100µA

0.8

100µA < I

SET ≤

1mA

0.9

1mA < I

SET ≤ 5mA

1.0

Average Change in Set Current

2µA

≤ I

SET ≤ 1mA

with Input Voltage

1.5

≤ V+ ≤ 5V

0.02

0.05

0.02

0.1

%/V

≤ V+ ≤ 40V

0.01

0.03

0.01

0.05

%/V

1mA < I

SET ≤ 5mA

1.5V

≤ V ≤ 5V

0.03

%/V

≤ V ≤ 40V

0.02

%/V

Temperature Dependence of

25µA

≤ I

SET ≤ 1mA

0.96T

1.04T

0.96T

1.04T

Set Current (Note 4)

Effective Shunt Capacitance

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

functional, but do not guarantee specific performance limits.

Note 2: Unless otherwise specified, tests are performed at Tj = 25˚C with pulse testing so that junction temperature does not change during test

Note 3: Set current is the current flowing into the V+ pin. For the Basic 2-Terminal Current Source circuit shown on the first page of this data sheet. ISET is determined

by the following formula: ISET = 67.7 mV/RSET (@ 25˚C). Set current error is expressed as a percent deviation from this amount. ISET increases at 0.336%/˚C @ Tj

= 25˚C (227 µV/˚C).

Note 4: ISET is directly proportional to absolute temperature (˚K). ISET at any temperature can be calculated from: ISET =Io (T/To) where Io is ISET measured at To

(˚K).

Note 5: For elevated temperature operation, TJ max is:

LM134

150˚C

LM234

125˚C

LM334

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

160˚C/W (0.125" leads)

jc (Junction to Case)

N/A

32˚C/W

80˚C/W

Note 6: Human body model, 100pF discharged through a 1.5k

Ω resistor.

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