The MCP6546/7/8/9 family of comparators offer low quiescent current, open-drain output, wide supply voltage range and more. They are ideal for use in laptop computers, mobile phones, metering systems, hand-held electronics, RC timers, alarm and monitoring circuits, windowed comparators, and multi-vibrators.
The MCP6546/6R/6U/7/8/9 family from Microchip Technology provides single, dual and quad open‑drain comparators optimized for low‑power, single‑supply applications. They feature rail‑to‑rail input operation, internal hysteresis, and the ability to drive heavy loads or act as level‑shifters up to 10 V.
The datasheet details electrical characteristics, including quiescent current, propagation delay, supply voltage range, temperature specifications, and AC performance. It also includes typical application notes, test circuit configurations, and performance curves for designers.
| Low Quiescent Current | 600 nA/comparator (typ.) |
|---|---|
| Rail‑to‑Rail Input Voltage Range | Vg -0.3 V to Vpp +0.3 V |
| Open‑Drain Output Voltage | <10 V |
| Propagation Delay | 4 µs (typ., 100 mV Overdrive) |
| Supply Voltage Range | 1.6 V to 5.5 V |
| Industrial Temperature Range | -40 °C to +85 °C |
| Extended Temperature Range | -40 °C to +125 °C |
| Input Hysteresis Voltage | 3.3 mV (typ.) |
| Maximum Output Short‑Circuit Current | 30 mA |
The typical quiescent current is 600 nA per comparator.
It operates from 1.6 V up to 5.5 V.
Industrial temperature range is –40 °C to +85 °C.
Yes, the open‑drain output can be used as a level‑shifter for up to 10 V with a pull‑up resistor.