Datasheet > TL431ACL3T

TL431ACL3T

更新时间： 2022-03-23 09:09:45

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
21页	939K
描述
Programmable voltage reference

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数据手册

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TL431ACL3T 数据手册

TL431, TL432

Electrical characteristics

Table 3.

Symbol

TL431C (T_amb= 25° C unless otherwise specified)

TL431C

TL431AC

Unit

Parameter

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

Reference input voltage

V_ref

V_KA= V_ref, I_k= 10 mA, T_amb= 25° C

2.44 2.495 2.55 2.47 2.495 2.52

T_min≤ T_amb≤ T_max

2.423

2.567 2.453

2.537

Reference input voltage deviation over temperature

range ⁽¹⁾

ΔV_ref

V_KA= V_ref, I_k= 10 mA, T_min≤ T_amb≤ T_max

Ratio of change in reference input voltage to change

in cathode to anode voltage

ΔVref

------------

ΔVka

mV/V

µA

I_k= 10 mA - ΔV_KA= 10 V to V_ref

ΔV_KA= 36 V to 10 V

-2.7 -1.4

-2

-1

-2

-1

Reference input current

I_k= 10 mA, R1 = 10 kΩ, R2 = ∞

I_ref

T_amb= 25° C

1.8

T_min≤ T_amb≤ T_max

5.2

Reference input current deviation over temperature

range

ΔI_ref

µA

I_k= 10 mA, R1 = 10 kΩ, R2 =∞

T_min≤ T_amb≤ T_max

0.4

0.5

1.2

0.4

0.5

1.2

0.6

Minimum cathode current for regulation

I_min

I_off

V_KA= V_ref

Off-state cathode current

2.6 1000

Dynamic impedance ⁽²⁾

⏐ZKA⏐

V_KA= V_ref, Δ I_k= 1 to 100 mA, f ≤ 1 kHZ

0.22 0.5

0.22

0.5

1. See definition of Section 3.1: Reference input voltage deviation over temperature range.

ΔV

2. ^{The dynamic impedance is defined as}|ZKA| =

---------------

ΔI_k

Doc ID 4467 Rev 11

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