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Data Sheet

FULL DATA SHEET (PDF, 408kB) Download   E-Mail

Description

The MAX6874/MAX6875 EEPROM-configurable, multivoltage supply sequencers/supervisors monitor several voltage detector inputs and general-purpose logic inputs, and provide programmable open-drain outputs for highly configurable power-supply sequencing applications. The MAX6874 provides six voltage monitor inputs, four general-purpose inputs, and eight programmable open-drain outputs. The MAX6875 provides four voltage monitor inputs, three general-purpose inputs, and five programmable open-drain outputs. Manual reset and margin disable inputs provide additional flexibility. All voltage detectors offer configurable thresholds for undervoltage detection. One high-voltage input (IN1) provides detector threshold voltages from +2.5V to +13.2V in 50mV increments, or from +1.25V to +7.625V in 25mV increments. A second positive input (IN2) provides detector threshold voltages from +2.5V to +5.5V in 50mV increments, or from +1.25V to +3.05V in 25mV increments. Positive inputs (IN3-IN6) provide detector threshold voltages from +1V to +5.5V in 20mV increments, or from +0.5V to +3.05V in 10mV increments. Programmable output stages control power-supply sequencing or system resets/interrupts. Program the open-drain outputs as active-high or active-low. Programmable timing delay blocks configure each output to wait between 25µs and 1600ms before deasserting. An SMBus™/I²C-compatible serial data interface programs and communicates with the configuration EEPROM, the configuration registers, and the internal 4kb user EEPROM of the MAX6874/MAX6875. The MAX6874/MAX6875 are available in a 7mm x 7mm x 0.8mm, 32-pin TQFN package and operate over the extended temperature range (-40°C to +85°C).

Key Features		Applications/Uses
Six (MAX6874) or Four (MAX6875) Configurable Input Voltage Detectors One High-Voltage Input (+1.25V to +7.625V or +2.5V to +13.2V Thresholds) One Voltage Input (+1.25V to +3.05V or +2.5V to +5.5V) Four (MAX6874) or Two (MAX6875) Positive Voltage Inputs (+0.5V to +3.05V or +1V to +5.5V) Four (MAX6874) or Three (MAX6875) General-Purpose Logic Inputs Two Configurable Watchdog Timers Eight (MAX6874) or Five (MAX6875) Programmable Open-Drain Outputs Active-High or Active-Low Timing Delays from 25µs to 1600ms Margining Disable and Manual-Reset Controls 4kb Internal User EEPROM Endurance: 100,000 Erase/Write Cycles Data Retention: 10 Years I²C/SMBus-Compatible Serial Configuration/Communication Interface ±1% Threshold Accuracy		Multimicroprocessor/Voltage Systems Networking Systems Servers and Workstations Storage Equipment Telecommunication/Central Office Systems Wireless Base Stations

Diagram

Typical Operating Circuit

Design Guides

Microprocessor Supervisory (PDF)

Reliability Reports

Show FIT data for: MAX6874 MAX6875 Request Reliability Report for: MAX6874 MAX6875

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-8 of 8

MAX6874	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6874ETJ			Active	TQFN;32 pin;50.4 mm² Outline Drawing: 21-0144 (PDF) Land Pattern: 90-0125 (PDF) Use pkgcode/variation: T3277-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6874ETJ-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6874ETJ+			Active	TQFN;32 pin;50.4 mm² Outline Drawing: 21-0144 (PDF) Land Pattern: 90-0125 (PDF) Use pkgcode/variation: T3277+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6874ETJ+T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6875	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6875ETJ			Active	TQFN;32 pin;50.4 mm² Outline Drawing: 21-0144 (PDF) Land Pattern: 90-0125 (PDF) Use pkgcode/variation: T3277-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6875ETJ-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX6875ETJ+			Active	TQFN;32 pin;50.4 mm² Outline Drawing: 21-0144 (PDF) Land Pattern: 90-0125 (PDF) Use pkgcode/variation: T3277+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6875ETJ+T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet

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