If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Total Supply Voltage (Note 1)

80V

Input Voltage

(Note 2)

Output Current

Internally Limited

Junction Temperature

(Note 3)

Storage Temperature Range

−65˚C to 150˚C

Lead Temperature

(Soldering, 10 seconds)

300˚C

Operating Ratings

Total Supply Voltage

15V to 60V

Case Temperature (Note 4)

0˚C to 70˚C

Parameter

Conditions

Typ

25˚C

LM12CL

Units

Limits

Input Offset Voltage

≤ V

2

15/20

mV (max)

Input Bias Current

V− + 4V

≤ V

0.15

0.7/1.0

µA (max)

Input Offset Current

V− +4V

≤ V

0.03

0.2/0.3

µA (max)

Common Mode

V− +4V

≤ V

86

70/65

dB (min)

Rejection

Power Supply

V+ = 0.5 V

90

70/65

dB (min)

Rejection

−6V

≥ V− ≥ −0.5 V

MAX

V− = −0.5 V

110

75/70

dB (min)

6V

≤ V+ ≤ 0.5 V

MAX

Output Saturation

t

Threshold

∆V

I

1.8

2.2/2.5

V (max)

8A

4

5/7

V (max)

10A

5

V (max)

Large Signal Voltage

t

Gain

V

100

30/20

V/mV (min)

V

50

15/10

V/mV (min)

Thermal Gradient

P

30

100

µV/W (max)

Feedback

Output-Current Limit

t

13

16

A (max)

t

1.5

0.9/0.6

A (min)

1.5

1.7

A (max)

Power Dissipation

t

100

80/55

W (min)

Rating

V

80

52/35

W (min)

DC Thermal Resistance

(Note 5) V

2.3

2.9

˚C/W (max)

V

2.7

4.5

˚C/W (max)

AC Thermal Resistance

(Note 5)

1.6

2.1

˚C/W (max)

Supply Current

V

60

120/140

mA (max)

Note 1: Absolute maximum ratings indicate limits beyond which damage to the device may occur. The maximum voltage for which the LM12 is guaranteed to operate

is given in the operating ratings and in Note 4. With inductive loads or output shorts, other restrictions described in applications section apply.

Note 2: Neither input should exceed the supply voltage by more than 50 volts nor should the voltage between one input and any other terminal exceed 60 volts.

Note 3: Operating junction temperature is internally limited near 225˚C within the power transistor and 160˚C for the control circuitry.

face type refers to limits or special conditions over full temperature range. With no heat sink, the package will heat at a rate of 35˚C/sec per 100W of internal

dissipation.

Note 5: This thermal resistance is based upon a peak temperature of 200˚C in the center of the power transistor and a case temperature of 25˚C measured at the

center of the package bottom. The maximum junction temperature of the control circuitry can be estimated based upon a dc thermal resistance of 0.9˚C/W or an ac

thermal resistance of 0.6˚C/W for any operating voltage.

Although the output and supply leads are resistant to electrostatic discharges from handling, the input leads are not.

The part should be treated accordingly.

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