器件名称:
TS431AILT
功能描述:
Low voltage adjustable shunt reference
文件大小:
128.51KB 共12页
简 介:
TS431 Low voltage adjustable shunt reference Features ■ ■ ■ ■ ■ ■ Low voltage operation: 1.24 to 6V 2%, 1% and 0.5% voltage precision Wide operating range cathode current: 60A to 30mA Low output impedance: 0.2Ω Typically stable for any capacitive loads ESD protection: – Human body model: 2kV – Machine model: 200V 100ppm/°C temperature coefficient Z TO92 (Plastic package) ■ Description The TS431 is a low-voltage, three-terminal, programmable shunt voltage reference. The output voltage can be set to any value between Vref (1.24V) and 6V with two external resistors. The TS431 is able to operate at a lower voltage (1.24V) and lower cathode current than the widely used TL431 and TL1431 shunt voltage reference. When driving an optocoupler, the TS431 is particularly useful for regulating 3.3V switching power supplies. L SOT23-5 (Plastic micropackage) August 2007 Rev 6 1/12 www.st.com 12 Absolute maximum ratings and operating conditions TS431 1 Absolute maximum ratings and operating conditions Table 1. Symbol VKA Ik Iref Pd Tstg Absolute maximum ratings Parameter Cathode to anode voltage Continuous cathode current range Reference input current range Power dissipation(1) TO92 package SOT23-5 package Storage temperature range Value 10 -20 to +40 -0.05 to +3 625 500 -65 to +150 Unit V mA mA mW °C 1. Tjunction=150°C, Tamb=25°C with RTHj-a=200°C/W for TO92 package and RTHj-a=250°C/W for SOT23-5L package Table 2. Symbol VKA Ik Toper Operating conditions Parameter Cathode to……
