DS1833-5

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Monitor and Reset Circuit

Characteristics: - Monitors the power supply voltage level - Generates a reset signal when the voltage drops below a specified threshold - Ensures proper operation of microcontrollers, microprocessors, and other digital systems - Provides reliable power-on reset (POR) functionality - Helps prevent system malfunction due to unstable power supply

Package: SOP-8 (Small Outline Package)

Essence: The DS1833-5 is an integrated circuit designed to monitor the power supply voltage and generate a reset signal when the voltage falls below a predetermined threshold. It is commonly used in digital systems to ensure proper operation and prevent data corruption or system malfunction.

Packaging/Quantity: The DS1833-5 is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Reset Threshold Voltage: 4.63V (typical)
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active Low
• Quiescent Current: 10µA (typical)

Detailed Pin Configuration

The DS1833-5 has eight pins arranged as follows:

┌───┬───┐ │ 1 │ 2 │ ├───┼───┤ │ 3 │ 4 │ ├───┼───┤ │ 5 │ 6 │ ├───┼───┤ │ 7 │ 8 │ └───┴───┘

1. VCC: Power Supply Voltage Input
2. GND: Ground
3. MR: Manual Reset Input (active low)
4. RESET: Reset Output (active low)
5. CT: Capacitor Terminal for Reset Timeout Period
6. NC: No Connection
7. NC: No Connection
8. NC: No Connection

Functional Features

• Monitors the power supply voltage continuously
• Generates a reset signal when the voltage drops below the specified threshold
• Provides a manual reset input for immediate system reset
• Configurable reset timeout period using an external capacitor
• Low quiescent current consumption for power efficiency
• Active low reset output for compatibility with various digital systems

Advantages and Disadvantages

Advantages: - Reliable power-on reset functionality - Helps prevent data corruption and system malfunction - Low power consumption - Compact SOP-8 package for space-constrained designs - Wide operating voltage range

Disadvantages: - Requires an external capacitor for configuring the reset timeout period - Limited number of available pins for additional functionalities

Working Principles

The DS1833-5 operates by continuously monitoring the power supply voltage. When the voltage falls below the specified threshold, it generates a reset signal to ensure proper system operation. The reset signal remains active until the voltage rises above the threshold or a manual reset is triggered. The reset timeout period can be adjusted by connecting an external capacitor to the CT pin.

Detailed Application Field Plans

The DS1833-5 is widely used in various applications where reliable power-on reset functionality is required. Some common application fields include:

1. Microcontroller Systems: Ensures proper initialization and prevents data corruption during power-up.
2. Embedded Systems: Provides reliable reset functionality for microprocessors and other digital components.
3. Industrial Control Systems: Helps maintain stable operation and prevent system malfunctions due to power fluctuations.
4. Automotive Electronics: Ensures proper functioning of critical systems during power transitions.
5. Consumer Electronics: Prevents data loss and system instability in devices such as smartphones, tablets, and gaming consoles.

Detailed and Complete Alternative Models

1. MAX809: Voltage Monitor and Reset Circuit with Adjustable Reset Threshold
2. ADM708: Microprocessor Supervisory Circuit with Power Fail Detection
3. MCP101: Precision Voltage Detector with Manual Reset Input
4. TPS3808: Ultra-Low Quiescent Current Supervisor with Programmable Delay Time

These alternative models offer similar functionality to the DS1833-5 and can be considered as alternatives based on specific requirements and design constraints.

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