MAX6842

PRODUCTION

MAX6842

Ultra-Low-Voltage µP Reset Circuits and Voltage Detectors

Ultra-Low-Voltage SC70 µP Supervisors Monitor Supplies Down to 0.9V with No External Components

PRODUCTION

MAX6841, MAX6842, MAX6843, MAX6844, MAX6845: Typical Operating Circuit slide

MAX6841, MAX6842, MAX6843, MAX6844, MAX6845: Typical Operating Circuit

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Part Models 6

1ku List Price Starting From $1.86

Features

Factory-Set Reset Threshold Voltages for Monitoring Supplies from 0.9V to 1.5V (MAX6841/MAX6842)
Adjustable Threshold RESET IN (MAX6843/MAX6844/MAX6845)
Low Power Consumption: 5.7µA (typ)
±2.5% Reset Threshold Accuracy Over Temperature
Five Timeout Periods: 150µs (Voltage Detector Version), 1.5ms, 30ms, 210ms, and 1.68s
Available in Three Output Configurations
- Push-Pull active-low RESET
- Push-Pull RESET
- Open-Drain active-low RESET
Guaranteed Reset Valid to V_CC = 0.55V (Active Low)
Manual Reset Input
Immune to Short V_CC Transients
Space-Saving 5-Pin SOT23 Package

Additional Details

The MAX6841–MAX6845 microprocessor (µP) supervisory circuits monitor ultra-low-voltage power supplies in µP and digital systems. They provide excellent circuit reliability at low cost by eliminating external components and adjustments when used with +0.9V to +1.5V systems. Factory-trimmed reset thresholds are available for the MAX6841/MAX6842. The MAX6843/MAX6844/MAX6845 provide a RESET IN input, allowing the user to externally adjust the reset threshold. The MAX6841–MAX6845 family features a debounced manual reset input (active-low MR). The reset comparator is designed to ignore fast transients on V_CC.

The MAX6841–MAX6845 assert a reset signal whenever the V_CC supply voltage declines below a preset or adjustable threshold or whenever manual reset (active-low MR) is asserted. Reset remains asserted for a fixed timeout delay after V_CC has risen above the reset threshold and when manual reset is deasserted. Five timeout periods are available for each part: 150µs (voltage detector version), 1.5ms, 30ms, 210ms, and 1.68s (typ).

The MAX6841/MAX6843 have an active-low push-pull reset output. The MAX6841/MAX6842/MAX6844 have an active-high push-pull reset output, and the MAX6842/MAX6845 have an active-low open-drain reset output. The active-low open-drain reset output requires a pullup resistor that can be connected to a voltage from 0 to V_CC.

The low supply current (5.7µA) and small package (SOT23-5) make the MAX6841–MAX6845 ideal for use in portable equipment.

Applications

Computers
Controllers
Critical µP and µC Power Monitoring
Intelligent Instruments
Portable Battery-Powered Equipment
Servers and Workstations
Telecom/Networking Equipment
Wireless Base Stations

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FAQs

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Part Models 6

1ku List Price Starting From $1.86

Technical Documents 2

MAX6841-MAX6845: Ultra-Low-Voltage µP Reset Circuits and Voltage Detectors Data Sheet (Rev.2) 06/05/2006

MAX6842 Reliability Data 01/12/2023

Design Resources 6

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX6842DUKD0+	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6842DUKD0+T	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6842FUKD3+	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6842FUKD3+T	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6842HUKD0+	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6842HUKD0+T	5-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

MAX6842DUKD0+
Pin/Package Drawing
5-SOT_23-N/A
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX6842DUKD0+T
Pin/Package Drawing
5-SOT_23-N/A
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX6842FUKD3+
Pin/Package Drawing
5-SOT_23-N/A
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX6842FUKD3+T
Pin/Package Drawing
5-SOT_23-N/A
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX6842HUKD0+
Pin/Package Drawing
5-SOT_23-N/A
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX6842HUKD0+T
Pin/Package Drawing
5-SOT_23-N/A
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

PCN/PDN Information

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Product Lifecycle

PCN

Feb 4, 2015

- 1341_CANCELLATION

ASSEMBLY

MAX6842DUKD0+

PRODUCTION

MAX6842DUKD0+T

PRODUCTION

MAX6842FUKD3+

PRODUCTION

MAX6842FUKD3+T

PRODUCTION

MAX6842HUKD0+

PRODUCTION

MAX6842HUKD0+T

PRODUCTION

pdf

pcn_1341_cancellation

Jan 9, 2015

- 1481

WAFER FAB

MAX6842DUKD0+

PRODUCTION

MAX6842DUKD0+T

PRODUCTION

MAX6842FUKD3+

PRODUCTION

MAX6842FUKD3+T

PRODUCTION

MAX6842HUKD0+

PRODUCTION

MAX6842HUKD0+T

PRODUCTION

pdf

pcn_1481

Jan 11, 2021

- 1703RN

ASSEMBLY

MAX6842FUKD3+

PRODUCTION

MAX6842HUKD0+

PRODUCTION

MAX6842HUKD0+T

PRODUCTION

pdf

pcn_1703rn

Jun 29, 2018

- 1703N

ASSEMBLY

MAX6842FUKD3+T

PRODUCTION

pdf

pcn_1703n

Filter by Model

Part Models

Product Lifecycle

PCN

Feb 4, 2015

- 1341_CANCELLATION

ASSEMBLY

MAX6842DUKD0+

PRODUCTION

MAX6842DUKD0+T

PRODUCTION

MAX6842FUKD3+

PRODUCTION

MAX6842FUKD3+T

PRODUCTION

MAX6842HUKD0+

PRODUCTION

MAX6842HUKD0+T

PRODUCTION

pdf

pcn_1341_cancellation

Jan 9, 2015

- 1481

WAFER FAB

MAX6842DUKD0+

PRODUCTION

MAX6842DUKD0+T

PRODUCTION

MAX6842FUKD3+

PRODUCTION

MAX6842FUKD3+T

PRODUCTION

MAX6842HUKD0+

PRODUCTION

MAX6842HUKD0+T

PRODUCTION

pdf

pcn_1481

Jan 11, 2021

- 1703RN

ASSEMBLY

MAX6842FUKD3+

PRODUCTION

MAX6842HUKD0+

PRODUCTION

MAX6842HUKD0+T

PRODUCTION

pdf

pcn_1703rn

Jun 29, 2018

- 1703N

ASSEMBLY

MAX6842FUKD3+T

PRODUCTION

pdf

pcn_1703n

Companion Parts 9

Parts	Product Life Cycle	Description
Product3
MAX6833		Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits
MAX6836	Obsolete	Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits
MAX6839		Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits
Single-Supply Monitors6
MAX6832	PRODUCTION	Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits
MAX6834	PRODUCTION	Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits
MAX6835	PRODUCTION	Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits
MAX6837	PRODUCTION	Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits
MAX6838	PRODUCTION	Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits
MAX6840	PRODUCTION	Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits