SNVSBI5A July 2019 – September 2019 TPS3870-Q1
PRODUCTION DATA.
The TPS3870-Q1 family of devices uses a voltage comparator and a precision voltage reference for overvoltage detection. The TPS3870-Q1 features a highly accurate threshold voltage (±0.7% over temperature) and a variety of voltage threshold variants.
The TPS3870-Q1 includes the resistors used to set the overvoltage threshold internal to the device. These internal resistors allow for lower component counts and greatly simplifies the design because no additional margins are needed to account for the accuracy of external resistors.
TPS3870-Q1 versions J, K and L have three time delay settings, two fixed by connecting CT pin to VDD through a resistor and leaving CT floating and a programmable time delay setting that only requires a single capacitor connected from CT pin to ground.
Manual Reset (MR) allows for sequencing or hard reset by driving the MR pin below VMR_L.
The TPS3870-Q1 is designed to assert active low output signals when the monitored voltage is outside the safe window. The relationship between the monitored voltage and the states of the outputs is shown in Table 2.