DS1811R-5+ 5V Reset Supervisor For Brownout Protection

DS1811R-5+ is intended for 5V systems that need a dependable reset during power-up and supply dips. It detects out-of-tolerance conditions and asserts reset so the processor doesn’t execute invalid instructions or corrupt memory during undervoltage. DS1811R-5+ uses an open-drain reset output with an internal pull-up intended for wired reset networks, which helps when multiple supervisors or manual reset sources share the same line. The device also holds reset for a defined interval after power returns, supporting stable boot timing in production and service scenarios. Place DS1811R-5+ close to the monitored rail, and decouple the sense node to reduce false triggering from fast transients. Route reset as a quiet signal and avoid long stubs near clock traces. Request a quote for DS1811R-5+.