TLV840-Q1中文资料具有可调节复位延时时间和手动复位的汽车低压监控器数据手册TI规格书

描述 Description

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.

特性 Features

Qualified for automotive applications:
• Device temperature grade 1: –40°C to +125°C ambient operating temperature
• Device CDM ESD classification level C7B
• Nano supply current : 120 nA (Typ)
• Built-in hysteresis (VHYS): 5% (Typ)
• Operating voltage range : 0.7 V to 6 V
• Programmable reset time delay (tD)
• Active-low manual reset (MR)
• Four output topologies (RESET / RESET):
• TLV840MAPL-Q1: push-pull, active-low
• TLV840MAPH-Q1: push-pull, active-high
• Package: SOT23-5 (DBV)