LM431ACZ データシートの表示（PDF） - Fairchild Semiconductor

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LM431ACZ

Programmable Shunt Regulator

Fairchild Semiconductor 

LM431A/LM431B/LM431C

Electrical Characteristics

(TA = +25°C, unless otherwise specified)

Parameter Symbol

Conditions

Reference

Input Voltage

Deviation of

Reference

Input Voltage

Over-

Temperature

Ratio of

Change in

Reference

Input Voltage

to the Change

in Cathode

Voltage

Reference

Input Current

Deviation of

Reference

Input Current

Over Full

Temperature

Range

Minimum

Cathode Cur-

rent for

Regulation

Off - Stage

Cathode

Current

Dynamic

Impedance

VREF VKA = VREF, IKA =10mA

ΔVREF/ VKA=VREF, IKA=10mA

ΔT

TMIN≤TA≤TMAX

ΔVREF/ IKA

ΔVKA =10mA

ΔVKA=10V-

VREF

ΔVKA=36V-

10V

IREF

IKA=10mA,

R1=10kΩ,R2=∞

IKA=10mA,

ΔIREF/ΔT

R1=10kΩ,R2=∞

TA =Full Range

IKA(MIN) VKA=VREF

IKA(OFF)

VKA=36V,

VREF=0

VKA=VREF,

ZKA IKA=1 to 100mA

f ≥1.0kHz

LM431A

LM431B

LM431C

Unit

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

2.450 2.500 2.550 2.470 2.495 2.520 2.482 2.495 2.508 V

- 4.5 17 - 4.5 17 - 4.5 17 mV

- -1.0 -2.7 - -1.0 -2.7 - -1.0 -2.7

- -0.5 -2.0

- -0.5 -2.0 -

mV/V

-0.5 -2.0

- 1.5 4

- 1.5 4 - 1.5 4 μA

- 0.4 1.2 - 0.4 1.2 - 0.4 1.2 μA

- 0.45 1.0 - 0.45 1.0 - 0.45 1.0 mA

- 0.05 1.0 - 0.05 1.0 - 0.05 1.0 μA

- 0.15 0.5 - 0.15 0.5 - 0.15 0.5 Ω

Note1

• LM431XC : TMIN = -25 °C, TMAX = +85°C

• LM431XI : TMIN = -40°C, TMAX = +85°C

3

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