维品佳科技

PROGRAMMABLE PRECISION REFERENCES 

The TL431 is three-terminal adjustable shunt regulator with specified termal stability. The output voltage may be set to any value between V REF (Approx. 2.5V) and 36V with two external resistors. This device has a typical output inpedance of 0.2Ω. Active output circuitry provides a very sharp turn-on  characteristic, making this device excellent replacement for zener diodes in many application.

编程精密基准电压

L431是三端可调并联稳压器，具有额定的热稳定性。输出电压可以设置为V REF(大约。2.5V)和36V，带有两个外部电阻。该器件的典型输出阻抗为0.2ω。有源输出电路提供非常陡峭的导通特性，使该器件成为许多应用中齐纳二极管的绝佳替代品。

FEATURES 

Equivalent Full Range Temperature Coefficient 50PPM/℃ 

Temperature Compensated For Operation Over Full Rate Operating Temperature Range 

Adjustable Output Voltage 

Fast Turn-on Response 

Sink Current Capability 1㎃ to 100㎃ 

Low (0.2Ω Typ.) Dynamic Output Impedance 

Low Output Noise

特征

等效满量程温度系数50PPM/℃

在全额定工作温度范围内进行温度补偿

可调输出电压

快速开启响应

将当前能力从1㎃转移到100㎃

低(典型值0.2ω。)动态输出阻抗

低输出噪声