Texas Instruments TPS3813K33-Q1
the TPS3813-Q1 family of devices incorporate a window-watchdog with programmable delay and window ratio. The upper limit of the watchdog time-out can be set by either connecting the WDT pin to GND or VDD, or by using an external capacitor. The lower limit, and thus the window ratio, is set by connecting the WDR pin to GND or VDD.FEATURES
●1 Qualified for AutomotiveAPPLICATIONS
● AEC-Q100 Qualified With the Following Results: – Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range – Device HBM Classification Level 2 – Device CDM Classification Level C4B● Window-Watchdog With Programmable Delay and Window Ratio
● 6-Pin SOT-23 Package
● Supply Current of 9 μA (Typ)
● Power-On Reset Generator With a Fixed Delay Time of 25 ms
● Precision Supply-Voltage Monitor: 2.5 V, 3 V, 3.3 V, 5 V
● Open-Drain Reset Output 2
APPLICATIONS
●APPLICATIONS
Using DSPs, Microcontrollers, or Microprocessors● Safety-Critical Systems
● Automotive Systems
● Heating Systems During power on, the RESET pin is asserted when the supply voltage (VDD) becomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps the RESET pin active as long as VDD remains below the threshold voltage (VIT). An internal timer delays the return of the output to the inactive (high) state to ensure proper system reset.