Electrical Characteristics of TL431/TL431A Series

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The Electrical Characteristics of TL431/TL431A Series from partinchina.com.

Parameter Symbol Conditions

TL431 TL431A

Unit

Min. Typ. Max. Min. Typ. Max.

Reference Input Voltage VREF VKA=VREF, IKA=10mA 2.440 2.495 2.550 2.470 2.495 2.520 V

Deviation of Reference

Input Voltage Over-

Temperature (Note 1)

ΔVREF/

ΔT

VKA=VREF, IKA=10mA

TMIN≤TA≤TMAX

- 4.5 17 - 4.5 17 mV

Ratio of Change in

Reference Input Voltage

ΔVREF/

ΔVKA IKA

=10mA

ΔVKA=10VVREF

- - 10 -2.7 - -1.0 -2.7

mV/V

to the Change in

Cathode Voltage

ΔVKA=36V-

10V - -0.5 -2.0 - -0.5 -2.0

Reference Input Current IREF

IKA=10mA,

R1=10KΩ,R2=∞ - 1.5 4 - 1.5 4 μA

Deviation of Reference

Input Current Over Full

Temperature Range ΔIREF/ΔT

IKA=10mA,

R1=10KΩ,R2=∞

TA =Full Range

- 0.4 1.2 - 0.4 1.2 μA

Minimum Cathode Current

for Regulation IKA(MIN) VKA=VREF - 0.45 1.0 - 0.45 1.0 mA

Off - Stage Cathode

Current IKA(OFF)

VKA=36V,

VREF=0 - 0.05 1.0 - 0.05 1.0 μA