Datasheet > TL432A-Q1

TL432A-Q1

更新时间： 2022-03-19 13:36:55

品牌	Logo	应用领域
德州仪器 - TI		稳压器
页数	文件大小	规格书
22页	441K
描述
ADJUSTABLE PRECISION SHUNT REGULATORS

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TL432A-Q1 数据手册

TL432A-Q1

TL432B-Q1

www.ti.com

SLVS900A –NOVEMBER 2008–REVISED JULY 2012

Deviation Parameters

The deviation parameters V

and I

are defined as the differences between the maximum and minimum

ref(dev)

values obtained over the recommended temperature range. The average full-range temperature coefficient of the

reference voltage, α

, is defined as:

Vref

(

)

I dev

ǒ Ǔ

MaximumV

Minimum V

ref

at 25°C

ref

ppm

Ť Ť

a_Vref

ǒ Ǔ₊

I(dev)

ref

°C

DT_A

∆T

where:

∆T is the recommended operating free-air temperature range of the device.

a_Vref

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

ref

the lower temperature.

Example: V = 2495 mV at 25°C, V

= 14 mV, ∆T = 165°C for TL432B

ref

I(dev)

14 mV

2495 mV

ppm

°C

Ť Ť ₊

a_Vref

[ 34

165°C

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

ref

Dynamic Impedance

DV_KA

DI_KA

z_KA

The dynamic impedance is defined as:

When the device is operating with two external resistors (see Figure 3), the total dynamic impedance of the circuit

is given by:

_|ǒ Ǔ

| |

zȀ +

[ z_KA1 )

Figure 1. Calculating Deviation Parameters and Dynamic Impedance

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