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TL431A

更新时间: 2024-01-08 04:16:22
品牌 Logo 应用领域
韩国泰进 - HTC 稳压器
页数 文件大小 规格书
12页 666K
描述
PROGRAMMABLE PRECISION SHUNT REGULATOR

TL431A 技术参数

生命周期:Obsolete零件包装代码:SOIC
包装说明:SOP,针数:8
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.90.00.00风险等级:5.57
Is Samacsys:N模拟集成电路 - 其他类型:TWO TERMINAL VOLTAGE REFERENCE
JESD-30 代码:R-PDSO-G8功能数量:1
输出次数:1端子数量:8
最高工作温度:105 °C最低工作温度:
最大输出电压:20 V最小输出电压:2.47 V
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
认证状态:Not Qualified表面贴装:YES
温度等级:OTHER端子形式:GULL WING
端子位置:DUAL微调/可调输出:YES
Base Number Matches:1

TL431A 数据手册

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PROGRAMMABLE PRECISION SHUNT REGULATOR TL431/A/C  
The deviation parameters ΔVREF/ΔT and ΔIREF/ΔT are defined as the differences between the maximum and  
minimum values obtained over the recommended temperature range. The average full-range temperature  
coefficient of the reference voltage, αVREF, is defined as :  
V
I(dev)  
(
)×106  
VREF at 25℃  
ΔTA  
αVREF (ppm/) =  
Where :  
ΔTA is the recommended operating free-air temperature range of the device.  
αVREF can be positive or negative, depending on whether minimum VREF or maximum VREF, respectively, occurs at  
the lower temperature.  
Example : Maximum VREF=2496mV at 30, maximum VREF=2492mV at 0, VREF=2495mV at 25,  
ΔTA=70for TL431C.  
4mV  
(
)×106  
2495mV  
αVREF  
=
23ppm/  
70℃  
Because minimum VREF occurs at the lower temperature, the coefficient is positive.  
Calculating Dynamic Impedance  
ΔVKA  
The dynamic impedance is defined as : ZKA  
=
ΔIKA  
When the device is operating with two external resistors, the total dynamic impedance of the circuit is given by:  
ΔV  
Z' =  
( )  
ZKA 1+ R1/R2  
ΔI  
Dec. 2010 – Rev.1.5  
- 6 -  
HTC  

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