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MIC842NYC5-TR

MCHPMIC842NYC5-TR

Microchip Technology
Comparator with Voltage Reference Open-Drain SC-70-5
Active2,123 in stock
Datasheet Digi-Key Compare Prices

Overview

The MIC842NYC5-TR is a micro-power comparator featuring an integrated 1.25V voltage reference and internal 20mV hysteresis. Operating from a supply voltage as low as 1.5V and drawing only 1.5 microamps of typical current, it is optimized for precision monitoring in portable electronics. Its open-drain, active-low output allows for easy level shifting and interfacing with various logic levels.

Why Choose This Part

The component is specifically designed to be immune to brief input transients, preventing false triggers in noisy environments. Its ultra-low current consumption of 1.5 microamps and tiny SC-70-5 footprint make it ideal for always-on monitoring in battery-powered hardware where board space and power efficiency are critical.

Applications

Precision Battery Monitoring
Used as a low-battery indicator or undervoltage lockout (UVLO) circuit in handheld devices to protect lithium-ion or alkaline cells.
Threshold Detection
Acts as a window comparator or simple voltage monitor in power-sequencing circuits for microprocessors.
Smartphones and PDAs
Provides efficient voltage supervision in space-constrained consumer electronics requiring minimal standby current.
Battery Chargers
Monitors charge termination voltages or provides overvoltage protection in portable charging docks.

Key Specifications

Type with Voltage Reference
Hysteresis 20mV
Output Type Open-Drain
Mounting Type Surface Mount
Package / Case 5-TSSOP, SC-70-5, SOT-353
Number of Elements 1
Operating Temperature -40degC ~ 85degC
Current - Output (Typ) 20mA
Propagation Delay (Max) 12us
Supplier Device Package SC-70-5
Current - Quiescent (Max) 3uA
Voltage - Supply, Single/Dual (+/-) 1.5V ~ 5.5V

Getting Started

Implementation requires calculating an external resistor divider at the input pin to set the desired trip point relative to the internal 1.25V reference. Since the output is open-drain, a pull-up resistor must be connected to a logic supply (up to 6V) to interface with a microcontroller or power-enable pin.

MIC842 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Output Type Stock
MIC842NYC5-TR (this part) Tape & Reel Open-Drain 2,123
MIC842HYC5-TR Tape & Reel Push-Pull 8,826