TS4431 1.224V open collector shunt voltage reference

The TS4431 is a four-terminal device dedicated to low voltage Switch Mode Power Supplies (SMPS).

It integrates a 1.224V voltage reference, an amplifier, and an open collector output transistor in a single package. The TS4431’s operating mode is similar to the well-known standard voltage reference, the TL431. It maintains the desired feedback voltage at the REF pin in a closed loop configuration by sinking a current proportional to the error voltage at the REF pin.

TS4431 features an open collector transistor with an ultra-low saturation voltage, allowing it to be used in series with the optocoupler in an SMPS architecture to regulate low voltage SMPS

技术特性

Internal 1.224V ±0.5% precision
Low output saturation voltage 75 mV max between SINK and GND
Low current consumption: 250 µA
Industrial temperature range: -40 to +85˚C
100ppm/˚C temperature coefficient

功能框图

TS4431 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
TS4431ILT	Active	0.3569	1000	SOT23-5L	Tape And Reel	-40 °C-85 °C	TS4431ILT
TS4431AILT	Active	0.3893	1000	SOT23-5L	Tape And Reel	-40 °C-85 °C	TS4431AILT

DATASHEET

描述	版本	大小
TS4431 : 1.224V open collector shunt voltage reference	2	163KB