| Number of supplies monitored | 1 |
| Threshold voltage 1 (Typ) (V) | 1.2, 2.2, 3.0, 3.1, 3.2, 3.6, 4.0 |
| Features | Manual reset capable, Reset time delay |
| Reset threshold accuracy (%) | 1 |
| Output driver type/reset output | Active-low, Open-drain |
| Time delay (ms) | Programmable |
| TI functional safety category | Functional Safety-Capable |
| Rating | Automotive |
| Watchdog timer WDI (sec) | None |
| Operating temperature range (C) | -40 to 125 |
Qualified for automotive applications:
- AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature
- Device HBM ESD classification level 2
- Device CDM ESD classification level C7B
Designed for high performance:
- Nano supply current : 120 nA (Typ)
- High accuracy: ±0.5% (Typ)
- Built-in hysteresis (VHYS): 5% (Typ)
- Fixed threshold voltage (VIT-): 0.8 V to 5.4 V
Designed for a wide range of applications:
- Operating voltage range : 0.7 V to 6 V
- Fixed (VIT-) voltage: 0.8 V to 5.4 V in 0.1 V steps
- Programmable reset time delay (tD)
- Min time delay: 40 μs (typ) without capacitor
- Active-low manual reset (MR)
Multiple output topologies / Package type:
- Four output topologies (RESET / RESET):
- TLV840MADL-Q1: open-drain, active-low
- TLV840MAPL-Q1: push-pull, active-low
- TLV840MADH-Q1: open-drain, active-high
- TLV840MAPH-Q1: push-pull, active-high
- Package: SOT23-5 (DBV)
The TLV840-Q1 device is a voltage supervisor or reset IC that can operate at wide input voltage levels from 0.7 V to 6 V while maintaining very low quiescent current across the whole VDD and temperature range. TLV840-Q1 offers the 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-). Reset signal is cleared when VDD rise 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 a minimum reset delay time the CT pin can be left floating. The TLV840-Q1, with its manual reset pin (MR), offers program flexibility by forcing the system into a hard reset when the pin is asserted.
Additional features: 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-Q1 is a perfect voltage monitoring solution for automotive applications and battery-powered / low-power applications.
