Texas Instruments TLV840/TLV840-Q1 Low-Voltage Supervisors (Reset ICs) can operate at high voltage levels while maintaining a very low quiescent current across the whole VDD and temperature range. TLV840/TLV840-Q1 offers the best combination of low power consumption, high accuracy, and low propagation delay (tp_HL = 30µs typical).
Reset output signal is asserted when the voltage at VDD drops below the negative voltage threshold (VIT-). Reset signal is cleared when VDD rises above VIT- plus hysteresis (VHYS), and the reset time delay (tD) expires. Reset time delay can be programmed by connecting a capacitor between the CT pin and ground for TLV840C/TLV840C-Q1 and TLV840M/TLV840M-Q1. For a minimum reset delay time, the CT pin can be left floating. Texas Instruments TLV840N/TLV840N-Q1 does not offer a programmable delay and offers fixed reset delay timing options of 40µs, 2ms, 10ms, 30ms, 50ms, 80ms, 100ms, 150ms, 200ms.
Additional features include low power-on reset voltage (VPOR), built-in glitch immunity protection for VDD, built-in hysteresis, low open-drain output leakage current (Ilkg(OD)). TLV840/TLV840-Q1 is a perfect voltage monitoring solution for industrial applications and battery-powered/low-power applications. The TLV840-Q1 devices are AEC-Q100 qualified for automotive applications.









