TPS3840

Product Folder Order Now Technical Documents Tools & Software Support & Community TPS3840 SNVSB03D – DECEMBER 2018 – REVISED JANUARY 2020 TPS3840 Nano Power, High Input Voltage Supervisor With MR and Programmable Delay 1 Features 1 Wide operating voltage: 1.5 V to 10 V Nano supply current: 300 nA (Typ), 700 nA (Max) Fixed threshold voltage (VIT-) – Threshold from 1.6 V to 4.9 V in 0.1-V steps – High accuracy: 1% (Typ), 1.5% (Max) – Built-in hysteresis (VIT+) – 1.6 V < VIT- ≤ 3.0 V = 100 mV (Typical) – 3.1 V ≤ VIT- < 4.9 V = 200 mV (Typical) Start-up delay (tSTRT): 220 µs (Typ), 350 µs (Max) Programmable reset time delay (tD): – 50 µs (no capacitor) to 6.2 s (10-µF) Active-low manual reset (MR) Three output topologies: – TPS3840DL: open-drain, active-low (RESET), requires pull-up resistor – TPS3840PL: push-pull, active-low (RESET) – TPS3840PH: push-pull, active-high (RESET) Wide temperature range: –40°C to +125°C Package: SOT23-5 (DBV) 2 Applications Grid infrastructure: circuit breaker, smart meter, other monitoring and protection equipment Factory automation: field transmitter, PLC. Building automation: fire safety, smoke detector, and HVAC Electronic point of sale Portable, battery-powered systems 3 Description Wide Vin allows monitoring 9V rails or batteries without external components and 24V rails with external resistors. Nano-Iq extends battery life for low power applications and minimizes current consumption when using external resisto...