TPS3831

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS3831, TPS3839 SBVS193D – JUNE 2012 – REVISED JULY 2015 TPS383x 150-nA, Ultralow Power, Supply Voltage Monitor 1 Features 1 Ultralow Supply Current: 150 nA (Typical) Operating Supply Voltage: 0.9 V to 6.5 V Valid Reset for VDD > 0.6 V Push-Pull RESET Output Factory-Trimmed Reset Threshold Voltages Temperature Range: –40°C to 85°C Packages: 1-mm × 1-mm X2SON or 3-Pin SOT23 2 Applications Portable and Battery-Powered Equipment Metering Industrial Equipment Cell Phones Glucose Monitors Tablets Wearables 3 Description The TPS3831 and TPS3839 devices (both referred to as TPS383x) are ultralow current (150 nA, typical), voltage supervisory circuits that monitor a single voltage. Both devices initiate an active-low reset signal whenever the VDD supply voltage drops below the factory-trimmed reset threshold voltage. The reset output remains low for 200 ms (typical) after the VDD voltage rises above the threshold voltage and hysteresis. These devices are designed to ignore fast transients on the VDD pin. The TPS3831 device includes a manual reset input that forces RESET low when MR is low. The ultralow current consumption of 150 nA makes these voltage supervisors ideal for use in low-power and portable applications. The TPS383x devices are specified to have the correct output logic state for supply voltages down to 0.6 V. The TPS383x devices feature precision factor...