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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftps38-q1″>View Datasheet
Texas Instruments TPS38/TPS38-Q1 65V Input Voltage Detectors come with 1µA IDD, 1% accuracy, and a fast 10µs detection time. These devices can be connected directly to a 12V/24V automotive battery system to continuously monitor over- (OV) or under- (UV) voltage conditions. With its internal resistor divider, it offers a small total solution size. Wide hysteresis voltage options are available to ignore cold crank, start-stop, and various car battery voltage transients. Built-in hysteresis on the SENSE pins prevents false reset signals when monitoring a supply voltage rail.
The separate VDD and SENSE pins allow redundancy sought by high-reliability automotive systems, and SENSE can monitor higher and lower voltages than VDD. Optional use of external resistors is supported by the high impedance input of the SENSE pins. CTSx and CTRx pins allow delay adjustability on the rising and falling edges of the RESET signals. Also, CTSx functions as a debouncer by ignoring voltage glitches on the monitored voltage rails. The CTRx operates as a manual reset (MR) that can be used to force a system reset.
Texas Instruments TPS38/TPS38-Q1 is available in WSON or SOT-23 package. The WSON package has wettable flanks allowing the facilitation for Automatic Optical Inspection (AOI) and low-resolution X-ray inspection. The central pad is non-conductive to increase the creepage between VDD and GND per guidelines in IEC60664. The TPS38-Q1 devices are AEC-Q100 qualified for automotive applications.
