The TPV821 is a supervisory circuit that monitors power supply voltage levels and provides a power-on reset signal.

A reset signal can also be asserted by an external manual reset input.

The reset periods are fixed at 200 ms (typical).

The TPV821 is available in a 5-lead SOT-23-5 package and 4-lead SOT-143 package. And typically consumes only 2.2 μA, suitable for use in low power, portable applications.

Features

 Precision low voltage monitoring

 200 ms (typical) reset timeout

 Manual reset input

 Reset output stage

 Open Drain Active-low output (TPV821)

 Low power consumption: 2.2 μA

 Guaranteed reset output valid to VCC = 1 V

 Power supply glitch immunity

 Specified from −40°C to +125°C

 5-lead SOT-23-5 package and 4-lead SOT-143 package

Applications

 Microprocessor systems

 Computers

 Controllers

 Intelligent instruments

 Portable equipment

TPV821V-5TR/TPV821W-5TR/TPV821Y-5TR/TPV821Z-5TR/TPV821R-5TR/TPV821S-5TR/TPV821T-5TR/TPV821M-5TR/TPV821L-5TR/TPV821V-4LTR/TPV821W-4LTR/TPV821Y-4LTR/TPV821Z-4LTR/TPV821R-4LTR/TPV821S-4LTR/TPV821T-4LTR/TPV821M-4LTR/TPV821L-4LTR电源监控与复位芯片.