The TPS3840-Q1 family of voltage supervisors or reset ICs can operate at high voltage
levels while maintaining very low quiescent current across the whole VDD and
temperature range. TPS3840-Q1 offers best combination of low power consumption, high accuracy and
low propagation delay (tp_HL= 30 µs typical). Reset output signal is asserted when the voltage at VDD drops below the negative voltage
threshold (VIT-) or when manual reset is pulled to a low logic
(VMR_L). Reset signal is cleared when
VDD rise above VIT- plus hysteresis
(VIT+) and manual reset (MR) is floating or above
VMR_H and the reset time delay
(tD) expires. Reset time delay can be programmed by connecting a capacitor
between CT pin and ground. For a fast reset CT pin can be left floating. Additional features: Low power-on reset voltage (VPOR), built-in
glitch immunity protection for MR and VDD, built-in hysteresis, low
open-drain output leakage current (ILKG(OD)). TPS3840-Q1 is a perfect
voltage monitoring solution for automotive applications and battery-powered / low power
applications.
