STM812LW16F - STMicroelectronics

Manufacturer Part Number

STM812LW16F

Manufacturer

stmicroelectronics

Introduction

The STM812LW16F is a power management integrated circuit (PMIC) supervisor designed to monitor the supply voltage of microprocessors, microcontrollers, and other digital systems. Providing a simple reset/power-on reset functionality, it ensures reliable operation by supervising the system's power supply.

Product Features and Performance

Monitors a single supply voltage

Active high reset output

Output type: Push-Pull, Totem Pole for direct interfacing with other digital components

Voltage threshold set at 4.63V to detect under-voltage conditions

Minimum reset timeout of 140ms to ensure system stability

Operates across a wide temperature range from -40°C to 85°C

Surface Mount device, making it suitable for compact and dense PCBs

Product Advantages

High integration for simplified system design

Precise monitoring of voltage to detect and respond to power failures

Compact size for use in space-constrained applications

Reliable operation in extreme temperature conditions

Direct interfacing capability with other system components without the need for additional buffering

Key Technical Parameters

Voltage Threshold: 4.63V

Reset: Active High

Reset Timeout: 140ms Minimum

Operating Temperature: -40°C ~ 85°C (TA)

Packaging: Tape & Reel (TR)

Package / Case: TO-253-4, TO-253AA

Supplier Device Package: SOT-143-4

Quality and Safety Features

Built-in safety features to prevent incorrect device resetting

Compliant with industry-standard quality and reliability norms

Designed to prevent system operation under unsafe power conditions

Compatibility

Compatible with a wide range of microprocessors, microcontrollers, and digital systems requiring voltage supervision

Flexible for use in systems with a 4.63V power supply threshold requirement

Application Areas

Consumer electronics

Automotive systems

Industrial control units

Computer systems

Telecommunication devices

Product Lifecycle

Currently in active status, with no disclosed plans for discontinuation

Replacement or upgrade options available as part of stmicroelectronics’ ongoing product development

Several Key Reasons to Choose This Product

Precision voltage monitoring for enhanced system reliability

Supports a broad range of applications across various industries

Compact and reliable design suitable for high-density PCB layouts

Active status in the product lifecycle ensures long-term availability and support

Offers a straightforward solution to power management within complex digital systems