LM393LV-Q1

The LM393LV-Q1 is a dual low-voltage comparator designed for automotive and industrial applications, featuring high reliability and low power consumption. It operates from a single supply voltage ranging from 2.7 V to 5.5 V, making it suitable for systems with limited power budgets or variable input sources. The device includes two independent comparators that offer rail-to-rail input and output swing, enabling efficient signal processing across a wide voltage range. This comparator is optimized for low quiescent current, consuming as little as 10 µA per channel in typical operation, which enhances energy efficiency in battery-powered and portable electronics. Its input offset voltage is typically less than 2 mV, ensuring accurate threshold detection even under varying temperature and supply conditions. The LM393LV-Q1 also features a wide common-mode input range that extends to ground, allowing direct interfacing with sensors and microcontrollers without additional level-shifting circuitry. Designed to meet AEC-Q100 Grade 1 qualification standards, the LM393LV-Q1 is built for harsh environments, including automotive systems exposed to extreme temperatures (-40°C to +125°C). It provides robust EMI immunity and latch-up protection, ensuring stable performance in noisy electrical environments. The internal hysteresis option helps reduce noise-induced switching, improving signal integrity in real-world applications such as fuel level sensing, temperature monitoring, and motor control. In terms of functionality, the LM393LV-Q1 supports open-collector outputs, allowing flexible interface with various logic families and external pull-up resistors. This feature simplifies integration into existing designs and reduces component count. Additionally, the device offers fast response times—typically under 1 µs for propagation delay—which makes it ideal for high-speed analog signal conditioning tasks like window detection, zero-crossing detection, and precision voltage monitoring. Its compact package options, including SO-8 and WSON-8, provide space-efficient solutions for densely populated PCBs. The LM393LV-Q1 is commonly used in automotive body control modules, engine management systems, battery management systems, and industrial automation equipment where reliable, low-power, and high-precision comparison is critical.