DS1833-10+ English Editing Encyclopedia Entry

Product Overview

Category

The DS1833-10+ belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and controlling the voltage levels in electronic circuits.

Characteristics

• Voltage range: 2.5V to 5.5V
• Accuracy: ±10%
• Low quiescent current: 15µA (typical)
• Power-on reset output
• Manual reset input
• Watchdog timer
• Adjustable reset threshold

Package

The DS1833-10+ comes in a small SOT-23 package, which is suitable for space-constrained applications.

Essence

The essence of DS1833-10+ lies in its ability to provide reliable voltage supervision and reset generation in various electronic systems.

Packaging/Quantity

The DS1833-10+ is typically packaged in reels containing 3000 units.

Specifications

• Supply Voltage Range: 2.5V to 5.5V
• Reset Threshold Voltage: Adjustable from 1.8V to VCC-0.6V
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The DS1833-10+ has three pins:

1. VCC: Connect this pin to the positive supply voltage.
2. GND: Connect this pin to the ground reference.
3. RESET: This pin outputs a reset signal when the monitored voltage falls below the set threshold.

Functional Features

1. Power-On Reset: The DS1833-10+ generates a reset signal upon power-up, ensuring proper initialization of the system.
2. Manual Reset Input: An external push-button can be connected to the RESET pin to manually trigger a system reset.
3. Watchdog Timer: The integrated watchdog timer monitors the system's operation and generates a reset signal if it detects a fault or malfunction.
4. Adjustable Reset Threshold: The reset threshold voltage can be adjusted to suit specific application requirements.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various systems.
• Low quiescent current minimizes power consumption.
• Small package size enables use in space-constrained designs.
• Adjustable reset threshold provides flexibility for different voltage levels.

Disadvantages

• Accuracy is limited to ±10%, which may not be suitable for highly precise applications.
• Lack of built-in hysteresis may result in potential oscillations near the threshold voltage.

Working Principles

The DS1833-10+ operates by continuously monitoring the voltage level at the VCC pin. If the voltage falls below the set threshold, the RESET pin outputs a low signal, indicating a reset condition. The reset signal remains active until the voltage rises above the threshold or a manual reset is triggered.

Detailed Application Field Plans

The DS1833-10+ finds applications in various fields, including:

1. Microcontrollers: Ensuring proper initialization and reliable operation of microcontroller-based systems.
2. Power Supply Units: Monitoring voltage levels to protect sensitive components from undervoltage conditions.
3. Industrial Control Systems: Providing reset generation and fault detection in industrial automation equipment.
4. Automotive Electronics: Ensuring stable operation of automotive electronic systems by monitoring supply voltages.

Detailed and Complete Alternative Models

1. MAX823: Similar voltage supervisor with adjustable reset threshold and small package size.
2. LTC2937: Voltage supervisor with programmable reset timeout period and wide operating temperature range.
3. TPS3839: Ultra-low-power voltage supervisor with adjustable reset threshold and high accuracy.

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