The TPS3420DDRYR is a 2-channel reset timer from Texas Instruments, monitoring two supply voltages with an active-low, open-drain output. The voltage threshold is adjustable or selectable, giving the designer flexibility to set the trip point per rail. The small SON package demands careful solder-paste stencil design to avoid bridging on the centre pad.
Lifecycle and compliance
This is a current-design part, suitable for new BOMs without an immediate migration risk. Fully RoHS3 compliant, with no exemptions that would complicate EU or UKCA market entry. The tape-and-reel packaging (offered in both TR and CT options) is standard for automated pick-and-place assembly.