Diodes AP431_A Manuel d'utilisateur télécharger pdf (Page 4)

AP431/AP431A

Document number: DS31002 Rev. 21 - 2

4 of 17

www.diodes.com

June 2013

AP431/AP431A

Electrical Characteristics (cont.) (@T

= +25°C, V

= 3V; unless otherwise specified.)

V = V - V

DEV MAX MIN

MAX

MIN

T1 T2Temperature

Note: 6. Deviation of reference input voltage, V

DEV

, is defined as the maximum variation of the reference over the full temperature range.

The average temperature coefficient of the reference input voltage V

REF

is defined as:

REF

DEV

REF

10)

C)(25V

(

V









……………………..………..…………….. (

)

ppm



Where:

T2 – T1 = full temperature change.

V

REF

can be positive or negative depending on whether the slope is positive or negative.

Note: 7. The dynamic output impedance, R

, is defined as:





When the device is programmed with two external resistors R1 and R2 (see Figure 2.), the dynamic output impedance of the overall

circuit, is defined as:

)

(1Z





 ≈

Test Conditions



Input

REF

Figure. 1 Test Circuit for V = V

KA REF

Note: V = V (1 + R1/R2) + I xR1

Figure. 2 Test Circuit for V > V

KA REF REF

KA REF

REF

Z(OFF)

Figure. 3 Test Circuit for Off-State Current

1 2 3 4 5 6 7 8 9 ... 16 17

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