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MCP6541T-I/OT

MCHPMCP6541T-I/OT

Microchip Technology
A single low-power comparator suitable for battery-powered sensor thresholding and digital outputs.
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Overview

The Microchip MCP6541T-I/OT is a single, low-power comparator designed for applications where minimal current consumption is critical. It operates from a wide supply voltage range of 1.6V to 5.5V, making it suitable for various battery-powered systems. Its rail-to-rail output and internal 6.5mV hysteresis provide stable and reliable digital outputs.

Why Choose This Part

The MCP6541T-I/OT's extremely low quiescent current (0.6 uA) significantly extends battery life in power-sensitive applications. Its wide operating voltage range (1.6V to 5.5V) offers flexibility for various power supply designs. The integrated 6.5mV hysteresis helps prevent output chatter when input signals are noisy or slowly varying, ensuring stable digital outputs.

Applications

Battery Monitoring
Used for low-voltage detection in battery-powered devices to indicate a low battery condition or trigger a power-saving mode.
Sensor Threshold Detection
Ideal for converting analog sensor outputs into digital signals by comparing them against a set threshold, such as in simple light or temperature detection circuits.
Portable Electronics
Its ultra-low quiescent current of 0.6 uA extends battery life in portable and handheld devices requiring simple signal comparison.
Alarm and Warning Circuits
Can be integrated into alarm systems to activate an indicator (LED, buzzer) when a specific voltage or current level is exceeded or falls below a threshold.

Key Specifications

Type Standard (General Purpose)
Hysteresis 6.5mV
Output Type CMOS, Push-Pull, Rail-to-Rail, TTL
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
CMRR, PSRR (Typ) 70dB CMRR, 80dB PSRR
Number of Elements 1
Operating Temperature -40degC ~ 85degC
Current - Output (Typ) 30mA
Propagation Delay (Max) 8us
Supplier Device Package SOT-23-5
Current - Quiescent (Max) 1uA
Current - Input Bias (Max) 1pA @ 5.5V
Voltage - Input Offset (Max) 7mV @ 5.5V
Voltage - Supply, Single/Dual (+/-) 1.6V ~ 5.5V

Getting Started

To get started with the MCP6541T-I/OT, you can prototype on a standard breadboard or custom PCB due to its common SOT-23 package. Design considerations include proper power supply decoupling and appropriate resistor networks for setting comparison thresholds. Refer to the Microchip Technology datasheet for detailed application circuits and layout guidelines.

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