TS431I 查看數據表（PDF） - STMicroelectronics

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TS431I

Low voltage adjustable shunt reference

STMicroelectronics 

TS431

2

Electrical characteristics

Electrical characteristics

Table 3.

Symbol

Tamb = 25°C (unless otherwise specified)

Parameter

Test conditions

Min. Typ. Max. Unit

Output voltage

Vref

VKA = Vref @ Ik = 100μA

TS431

TS431A

TS431B

1.215 1.240 1.265

1.228

1.252 V

1.234

1.246

ΔVref

Δ-Δ----VV----r-k--e-a--f

Output voltage change (1) (2)

Ik = 100μA, VKA = Vref

0 < Tamb < +70°C

-40 < Tamb < +85°C

-40 < Tamb < +105°C

-40 < Tamb < +125°C

Ratio of change in reference input

voltage to change in cathode to

anode voltage

Ik = 10mA

VKA = 6V to Vref

9

16

18

mV

21

1.8 2.7 mV/V

Iref Reference input current

Ik = 10mA

ΔIref

Reference input current deviation Ik=10mA, R1=10kΩ, R2=∝

over temperature range

-40 < Tamb < +85°C

-40 < Tamb < +125°C

Imin

Minimum cathode current for

regulation

VKA = Vref

70

160

nA

70

160

nA

90 240

40

60

μA

Ioff Off-state cathode current

VKA = 6V, Vref = 0

0.001 0.1

μA

RKA Static impedance

VKA = Vref, Ik = 0.1 to 15mA

0.2 0.4

Ω

1. Limits are 100% production tested at 25°C. Behavior at the temperature range limits is guaranteed through correlation and

by design.

2. See definition below.

Definition of output voltage change over temperature range

ΔVref is defined as the difference between the maximum and minimum values obtained over

the full temperature range.

ΔVref = Vref max - Vref min

Figure 1. Output voltage change over temperature range

Vref max.

Vref m in .

T1

T2

T e m p e ratu re

3/12

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