TS821

TS821 1.225V micropower shunt voltage reference Features ■ 1.225V typical output voltage ■ Ultra low operating current: 45μA maximum at 25°C ■ High precision @ 25°C – +/- 2% (standard version) – +/- 1% (A grade) – +/- 0.5% (B grade) ■ High stability when used with capacitive loads ■ Industrial temperature range: -40°C to +85°C ■ 120ppm/°C maximum temperature coefficient Applications ■ Computers ■ Instrumentation ■ Battery chargers ■ Switch mode power supply ■ Battery operated equipment Description The TS821 is a low power shunt voltage reference providing a stable 1.225V output voltage over the industrial temperature range (-40°C to +85°C). Availabe in SOT23-3 surface mount package, it can be designed in applications where space saving is critical. The low operating current is a key advantage for power restricted designs. In addition, the TS821 is very stable and can be used in a broad range of application conditions. L SOT23-3L (Plastic micropackage) Pin connections (Top view) July 2007 Rev 2 1/9 www.st.com 9 Absolute maximum ratings and operating conditions TS821 1 Absolute maximum ratings and operating conditions Table 1. Symbol Absolute maximum ratings (AMR) Parameter Value Unit Ik If Pd Tstg ESD Reverse breakdown current Forward current Power dissipation(1) SOT23-3 Storage temperature Human body model (HBM)(2) Machine model (MM)(3) 20 mA 10 mA 360 mW -65 to +150 °C 2 kV 200 V Tlead Lead temperature (soldering, 10 seconds) 260 °C 1. Pd is ...