TPS3899-Q1 Automotive Nanopower Precision Voltage Supervisor

Texas Instruments' TPS3899-Q1 is a nanopower, precision voltage supervisor with ±0.5% threshold accuracy and programmable sense and reset time delay in a 6-pin space-saving 1.5 mm x 1.5 mm WSON package. This feature-rich voltage supervisor offers an ultra-small total solution size. Built-in hysteresis along with programmable delay prevent false reset signals when monitoring a voltage rail or pushbutton signals. The separate V_DD and SENSE pins allow for the redundancy sought by high-reliability systems. SENSE is decoupled from V_DD and can monitor rail voltages other than V_DD. Optional use of external resistors is supported by the high impedance input of the SENSE pin.

CTS and CTR provide delay adjustability on the rising and falling edges of the RESET signals. CTS functions as a debouncer by ignoring voltage glitches on the monitored voltage rails and operates as a manual reset that can force a system reset. The precision performance, best-in-class features, and compact form factor make the TPS3899-Q1 an ideal solution for a wide range of automotive and battery-powered/low-power applications. The device offers a temperature range of -40°C to +125°C (T_A).