MICROCHIP MCP6543-I/MS

The MCP6541/1R/1U/2/3/4 family of comparators is offered in single (MCP6541, MCP6541R, MCP6541U), single with Chip Select (CS) (MCP6543), dual (MCP6542) and quad (MCP6544) configurations. The outputs are push-pull (CMOS/TTL-compatible) and are capable of driving heavy DC or capacitive loads. These comparators are optimized for low-power, single-supply operation with greater than rail-to-rail input operation. The push-pull output of the MCP6541/1R/1U/2/3/4 family supports rail-to-rail output swing and interfaces with TTL/CMOS logic. The internal input hysteresis eliminates output switching due to internal input noise voltage, reducing current draw. The output limits supply current surges and dynamic power consumption while switching. This product family operates with a single-supply voltage as low as 1.6V and draws less than 1 µA/comparator of quiescent current. The related MCP6546/7/8/9 family of comparators has an open-drain output. Used with a pullup resistor, these devices can be used as level-shifters for any desired voltage up to 10V and in wired-OR logic.

• Low Quiescent Current: 600 nA/Comparator (typ.)
• Rail-to-Rail Input: VSS - 0.3V to VDD + 0.3V
• CMOS/TTL-Compatible Output
• Propagation Delay: 4 µs (typical, 100 mV Overdrive)
• Wide Supply Voltage Range: 1.6V to 5.5V
• Available in Single, Dual and Quad
• Single Available in SOT-23-5, SC-70-5 Packages
• Chip Select (CS) with MCP6543
• Low Switching Current
• Internal Hysteresis: 3.3 mV (typ.)
• Temperature Ranges:
  • Industrial: -40°C to +85°C
  • Extended: -40°C to +125°C

• Laptop Computers
• Mobile Phones
• Metering Systems
• Hand-held Electronics
• RC Timers
• Alarm and Monitoring Circuits
• Windowed Comparators
• Multivibrators