DS1832U/T&R

Product Overview

• Category: Integrated Circuits
• Use: Supervisory Circuits
• Characteristics: Low-power, Precision Voltage Monitor
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Monitors the power supply voltage and provides a reset signal to the microcontroller or other digital systems when the voltage drops below a specified threshold.
• Packaging/Quantity: Tape and Reel (T&R), 2500 units per reel

Specifications

• Supply Voltage Range: 1.7V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 3.08V, 4.38V
• Reset Timeout Period Options: 140ms, 450ms, 900ms, 1800ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The DS1832U/T&R has the following pin configuration:

1. GND: Ground
2. RESET: Active-Low Reset Output
3. VCC: Supply Voltage Input
4. MR: Manual Reset Input
5. VBAT: Battery Backup Input
6. SENSE: Voltage Sense Input
7. GND: Ground
8. VCC: Supply Voltage Input

Functional Features

• Monitors the power supply voltage continuously.
• Generates a reset signal when the voltage falls below the specified threshold.
• Provides a manual reset input for external system control.
• Includes a battery backup input for monitoring during power loss.
• Offers multiple reset timeout period options for flexibility.

Advantages and Disadvantages

Advantages: - Low-power consumption. - Precise voltage monitoring. - Small form factor. - Wide operating voltage range.

Disadvantages: - Limited reset threshold voltage options. - Limited reset timeout period options.

Working Principles

The DS1832U/T&R operates by comparing the supply voltage with the specified threshold voltage. When the supply voltage drops below the threshold, the reset output is activated, indicating a power failure. The reset signal remains active until the supply voltage rises above the threshold or a manual reset input is triggered.

Detailed Application Field Plans

The DS1832U/T&R is commonly used in various applications, including: - Microcontroller-based systems - Industrial control systems - Embedded systems - Power management circuits - Battery-powered devices

Detailed and Complete Alternative Models

Some alternative models to the DS1832U/T&R include: - MAX809: Low-power microprocessor reset circuits - ADM708: Voltage monitoring circuits with watchdog timer - MCP101: Precision voltage monitor with manual reset

These alternative models offer similar functionality and can be considered as substitutes for the DS1832U/T&R in different applications.

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