The TPS3806I33-Q1 integrates two independent voltage detectors for battery voltage monitoring. During power on, the device asserts RESET and RSTSENSE when supply voltage VDD or the voltage at the LSENSE input becomes higher than 0.8 V. Thereafter, the supervisory circuit monitors VDD and LSENSE, keeping RESET and RSTSENSE active as long as VDD and LSENSE remain below the threshold voltage, VIT. As soon as VDD or LSENSE rises above the threshold voltage VIT, the device deasserts RESET or RSTSENSE, respectively. The TPS3806I33-Q1 device has a fixed-sense threshold voltage VIT set by an internal voltage divider at VDD and an adjustable second-LSENSE input. In addition, one can set an upper voltage threshold at HSENSE to allow a wide adjustable hysteresis window. The devices are available in a 6-pin SOT-23 package. Characterization of the TPS3806I33-Q1 device is for operation over a temperature range of –40°C to 125°C.