Rainbow-electronics LM20 Manual do Utilizador descarregar pdf (Página 3)

Absolute Maximum Ratings (Note 1)

Supply Voltage +6.5V to −0.2V

Output Voltage (V

+

+ 0.6 V) to

−0.6 V

Output Current 10 mA

Input Current at any pin (Note 2) 5 mA

Storage Temperature −65˚C to

+150˚C

Maximum Junction Temperature

(T

JMAX

) +150˚C

ESD Susceptibility (Note 3) :

Human Body Model 2500 V

Machine Model 250 V

Soldering process must comply with National’s

Reflow Temperature Profile specifications. Refer to

www.national.com/packaging. (Note 4)

Operating Ratings(Note 1)

Specified Temperature Range: T

MIN

≤ T

A

≤ T

MAX

LM20B, LM20C with

2.4 V ≤ V

+

≤ 2.7 V −30˚C ≤ T

A

≤ +130˚C

LM20B, LM20C with

2.7 V ≤ V

+

≤ 5.5 V −55˚C ≤ T

A

≤ +130˚C

LM20S with

2.4 V ≤ V

+

≤ 5.5 V −30˚C ≤ T

A

≤ +125˚C

LM20S with

2.7 V ≤ V

+

≤ 5.5 V −40˚C ≤ T

A

≤ +125˚C

Supply Voltage Range (V

+

) +2.4 V to +5.5 V

Thermal Resistance, θ

JA

(Note 5)

SC-70

micro SMD

415˚C/W

340˚C/W

Electrical Characteristics

Unless otherwise noted, these specifications apply for V

+

= +2.7 V

DC

. Boldface limits apply for T

A

=T

J

=T

MIN

to T

MAX

; all

other limits T

A

=T

J

= 25˚C; Unless otherwise noted.

Parameter Conditions Typical

(Note 6)

LM20B LM20C LM20S Units

(Limit)

Limits Limits Limits

(Note 7) (Note 7) (Note 7)

Temperature to Voltage Error

V

O

= (−3.88x10

−6

xT

2

)

+ (−1.15x10

−2

xT) + 1.8639V

(Note 8)

T

A

= +25˚C to +30˚C

±

1.5

±

4.0

±

2.5 ˚C (max)

T

A

= +130˚C

±

2.5

±

5.0 ˚C (max)

T

A

= +125˚C

±

2.5

±

5.0

±

3.5 ˚C (max)

T

A

= +100˚C

±

2.2

±

4.7

±

3.2 ˚C (max)

T

A

= +85˚C

±

2.1

±

4.6

±

3.1 ˚C (max)

T

A

= +80˚C

±

2.0

±

4.5

±

3.0 ˚C (max)

T

A

= 0˚C

±

1.9

±

4.4

±

2.9 ˚C (max)

T

A

= −30˚C

±

2.2

±

4.7

±

3.3 ˚C (min)

T

A

= −40˚C

±

2.3

±

4.8

±

3.5 ˚C (max)

T

A

= −55˚C

±

2.5

±

5.0 ˚C (max)

Output Voltage at 0˚C +1.8639 V

Variance from Curve

±

1.0 ˚C

Non-Linearity (Note 9) −20˚C ≤ T

A

≤ +80˚C

±

0.4 %

Sensor Gain (Temperature

Sensitivity or Average Slope)

to equation:

V

O

=−11.77 mV/˚CxT+1.860V

−30˚C ≤ T

A

≤ +100˚C −11.77 −11.4

−12.2

−11.0

−12.6

−11.0

−12.6

mV/˚C (min)

mV/˚C (max)

Output Impedance 0 µA ≤ I

L

≤ +16 µA

(Notes 11, 12)

160 160 160 Ω (max)

Load Regulation(Note 10) 0 µA ≤ I

L

≤ +16 µA

(Notes 11, 12)

−2.5 −2.5 −2.5 mV (max)

Line Regulation +2. 4 V ≤ V

+

≤ +5.0V +3.3 +3.7 +3.7 mV/V (max)

+5.0 V ≤ V

+

≤ +5.5 V +11 +11 +11 mV (max)

Quiescent Current +2. 4V ≤ V

+

≤ +5.0V 4.5 7 7 7 µA (max)

+5.0V ≤ V

+

≤ +5.5V 4.5 9 9 9 µA (max)

+2. 4V ≤ V

+

≤ +5.0V 4.5 10 10 10 µA (max)

Change of Quiescent Current +2. 4 V ≤ V

+

≤ +5.5V +0.7 µA

Temperature Coefficient of −11 nA/˚C

Quiescent Current

Shutdown Current V

+

≤ +0.8 V 0.02 µA

LM20

www.national.com3

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