TL432SF 查看數據表（PDF） - HTC Korea

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TL432SF

Low Voltage(1.24V) Adjustable Precision Shunt Regulator

HTC Korea 

Low Voltage(1.24V) Adjustable Precision Shunt Regulator TL432/A/C

αVREF can be positive or negative, depending on whether minimum VREF or maximum VREF, respectively, occurs at

the lower temperature.

Example: Maximum VREF=1190mV at 30℃, maximum VREF=1262mV at 0℃, VREF=1241mV at 25℃,

ΔTA=125℃ for TL432C.

( 72mV )×106

αVREF

=

1241mV

125℃

≈ 46ppm/ ℃

Because minimum VREF occurs at the lower temperature, the coefficient is positive.

Calculating Dynamic Impedance

The dynamic impedance is defined as :

Z KA

= ΔVKA

ΔIKA

When the device is operating with two external resistors, the total dynamic impedance of the circuit is given by:

Z'

ΔV

=

ΔI

≈ Z KA

(1 + R1/ R 2)

Sep. 2010 – Rev.1.5

-6-

HTC

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