MAX691EWE+

Name: MAX691EWE+
Brand: Maxim Integrated
Availability: InStock
Rating: 4.5 (10 reviews)
Author: Lisleapex

Ensures Safe Power-Up and Power-Down Operations

7,456 Effective Inventory

MAX691EWE+

Effective Inventory7,456

Ensures Safe Power-Up and Power-Down Operations

Manufacturer Part # : MAX691EWE+
Package/Case: SOIC-Wide-16
Brand: Maxim Integrated
Product Categories : Supervisors
Series : MAX691

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MAX691EWE+ DataSheet

Pricing (USD)

Quantity	Unit Price	Ext. Price
1	$1.813	$1.81
200	$0.703	$140.60
500	$0.677	$338.50
1000	$0.666	$666.00

These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.

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MAX691EWE+ Details

The MAX691EWE+ is a microprocessor supervisory circuit from Analog Devices, designed to monitor and manage power supply voltages in various applications. This device provides a safe shutdown feature, automatic restart mechanism, voltage monitor input, error detection and correction, precise clock frequency control, advanced power management, real-time monitoring, high-speed data transmission, fast response time, limited power consumption, and secure password protection.

Pinout

VCC (1): Positive Power Supply
GND (2): Ground
RST (3): Reset Output
INT (4): Interrupt Output
VMON (5): Voltage Monitor Input
CLOCK (6): Clock Input

Key Features

Safe Shutdown Feature: Provides a controlled shutdown of the system in case of power supply failure or undervoltage condition.
Automatic Restart Mechanism: Automatically restarts the system after a power cycle or reset.
Voltage Monitor Input: Monitors the voltage level and provides an interrupt signal when the voltage falls below a predetermined threshold.
Error Detection and Correction: Detects errors in the system and corrects them to ensure reliable operation.
Precise Clock Frequency Control: Provides precise control over the clock frequency to ensure accurate timing.

Applications

Industrial Automation: Suitable for industrial automation systems that require reliable power supply monitoring and management.
Aerospace and Defense: Used in aerospace and defense applications where high reliability, precision timing, and secure data transmission are critical.
Medical Devices: Applied in medical devices that require precise control over clock frequency, error detection, and correction to ensure reliable operation.

Where to Use

The MAX691EWE+ is suitable for applications where power supply monitoring and management are critical. It can be used in industrial automation systems, aerospace and defense applications, medical devices, and other areas where reliable operation and secure data transmission are essential.

How to Use

To use the MAX691EWE+, connect the VCC pin to a stable power supply voltage, the GND pin to ground, and the RST pin to a reset signal. Apply a clock signal to the CLOCK pin and monitor the voltage level at the VMON pin. The device will automatically restart the system after a power cycle or reset.

Application Circuit

The application circuit diagram for the MAX691EWE+ illustrates how to connect the device to a microprocessor and other components in an industrial automation system. It includes connections for power supply, ground, clock signal, reset signal, and voltage monitor input.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

MAX691EWE: A similar microprocessor supervisory circuit from Analog Devices offering comparable features and performance.
MC34081: An alternative microprocessor supervisory circuit from ON Semiconductor with equivalent functionality.

Complementary

The MAX691EWE+ can be complemented by the MAX691EWE, which offers additional features such as higher precision timing and enhanced error detection capabilities. When selecting complementary devices, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category !	Supervisory Circuits	RoHS	Details
Type	Voltage Supervisory	Mounting Style	SMD/SMT
Package / Case	SOIC-Wide-16	Threshold Voltage	4.65 V
Number of Inputs Monitored	1 Input	Output Type	Active Low, Push-Pull
Manual Reset	No Manual Reset	Watchdog Timers	Watchdog
Battery Backup Switching	Backup	Reset Delay Time	50 ms
Supply Voltage - Max	5.5 V	Minimum Operating Temperature	- 40 C
Maximum Operating Temperature !	+ 85 C	Series	MAX691
Brand	Analog Devices / Maxim Integrated	Chip Enable Signals	Chip Enable
Height	2.35 mm	Length	10.5 mm
Operating Supply Current	350 uA	Overvoltage Threshold !	4.75 V
Pd - Power Dissipation	600 mW	Power Fail Detection	Yes
Product Type !	Supervisory Circuits	Factory Pack Quantity	46
Subcategory	PMIC - Power Management ICs	Supply Voltage - Min	4.75 V
Undervoltage Threshold !	4.5 V	Width	7.6 mm
Part # Aliases	MAX691	Unit Weight	0.016709 oz

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification MAX691EWE+ PDF Download

FAQs

What is MAX691EWE+?

The MAX691EWE+ is a low-voltage, microprocessor supervisory circuit designed by Maxim Integrated. It provides monitoring and reset functions for microcontrollers and other digital systems to ensure proper operation and system integrity.

How Does MAX691EWE+ Work?

The MAX691EWE+ works by monitoring the power supply voltage and the system's reset input. It generates a reset signal if the voltage drops below a specified threshold or if the system's reset input is triggered. This ensures that the microcontroller or digital system is properly initialized and operates within specified parameters.

How Many Pins does MAX691EWE+ have and What are the Functions of the Pinout Configuration?

The MAX691EWE+ is housed in a 16-pin wide SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

RST: Reset output pin.
GND: Ground pin.
VCC: Power supply pin.
MR: Manual reset input pin.
SRT: Synchronized reset input pin.
OV: Overvoltage input pin.
UV: Undervoltage input pin.

What are the Pros and Cons of MAX691EWE+?

Pros:

Microprocessor Supervision: Ensures reliable operation of microcontrollers and digital systems.
Low Voltage Operation: Suitable for applications requiring low-voltage monitoring.
Reset Functions: Provides reset signals for system initialization and fault detection.
Manual Reset Input: Allows manual reset triggering for system testing or maintenance.
Wide Operating Temperature Range: Can operate in extended temperature environments.

Cons:

External Components: May require additional external components for specific applications or customizations.
Complexity: Requires proper understanding of datasheet parameters for optimal configuration.
Package Size: The 16-pin wide SOIC package may require more board space compared to smaller packages.

Are There Any Equivalents/Alternatives to MAX691EWE+ for Recommendation?

An equivalent part to the MAX691EWE+ is the MAX1232 from Maxim Integrated.
Alternatives to the MAX691EWE+ include the ADM811 from Analog Devices and the DS1811 from Maxim Integrated.