LM331 datasheet(6/23 Pages) TI1

6 / 23 page

LM231, LM331

SNOSBI2C – JUNE 1999 – REVISED SEPTEMBER 2015

www.ti.com

Electrical Characteristics (continued)

All specifications apply in the circuit of Figure 16, with 4.0 V

≤ VS ≤ 40 V, TA = 25°C, unless otherwise specified.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

CURRENT SOURCE (PIN 1)

LM231, LM231A

RS = 14 kΩ, VPIN 1 = 0

126

135

144

μA

Output Current

LM331, LM331A

116

136

156

μA

Change with Voltage

≤ VPIN 1 ≤ 10 V

0.2

μA

LM231, LM231A,

0.02

Current Source OFF

LM331, LM331A

Leakage

All Devices

TA = TMAX

Operating Range of Current (Typical)

(10 to 500)

μA

REFERENCE VOLTAGE (PIN 2)

LM231, LM231A

1.76

1.89

2.02

VDC

LM331, LM331A

1.7

1.89

2.08

VDC

Stability vs. Temperature

±60

ppm/°C

Stability vs. Time, 1000 Hours

±0.1%

LOGIC OUTPUT (PIN 3)

I = 5 mA

0.15

0.5

VSAT

I = 3.2 mA (2 TTL Loads),

0.1

0.4

TMIN ≤ TA ≤ TMAX

OFF Leakage

±0.05

μA

SUPPLY CURRENT

VS = 5 V

LM231, LM231A

VS = 40 V

2.5

VS = 5 V

1.5

LM331, LM331A

VS = 40 V

7.6 Dissipation Ratings

VALUE

UNIT

Package Dissipation at 25°C(1)

1.25

(1)

The absolute maximum junction temperature (TJmax) for this device is 150°C. The maximum allowable power dissipation is dictated by

TJmax, the junction-to-ambient thermal resistance (θJA), and the ambient temperature TA, and can be calculated using the formula

PDmax = (TJmax - TA) / θJA. The values for maximum power dissipation will be reached only when the device is operated in a severe

fault condition (e.g., when input or output pins are driven beyond the power supply voltages, or the power supply polarity is reversed).

Obviously, such conditions should always be avoided.

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