The TLV803E, TLV809E, and TLV810E devices are used for voltage monitoring. These devices have only three pins: VDD, GND, and RESET (or RESET for TLV810E). There are at the most two external components: a capacitor on the VDD pin and a pull-up resistor on the RESET/RESET to VDD or another pull-up voltage for the open-drain variants. The design involves choosing the device with the desired voltage threshold and output topology and adding these components, if needed, as explained in the following sections.