TPS3837L30DBVR

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Monitoring, Reset Output
• Package: SOT-23 (Small Outline Transistor)
• Essence: Monitors voltage levels and provides a reset signal when necessary
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.8V to 10V
• Threshold Voltage Accuracy: ±0.5%
• Quiescent Current: 1.6µA (typical)
• Reset Timeout Period: 200ms (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TPS3837L30DBVR has the following pin configuration:

1. GND (Ground): Connected to the ground reference of the system.
2. RESET (Reset Output): Provides a reset signal to the system when the monitored voltage falls below the threshold.
3. VDD (Supply Voltage): Connected to the positive supply voltage of the system.

Functional Features

• Monitors the supply voltage and generates a reset signal when it drops below a specified threshold.
• Provides a precise and reliable reset output to ensure proper system operation.
• Low quiescent current consumption, making it suitable for battery-powered applications.
• Built-in hysteresis prevents false triggering due to voltage fluctuations or noise.

Advantages and Disadvantages

Advantages: - Low power consumption extends battery life in portable devices. - Precise monitoring ensures system reliability. - Small package size allows for space-efficient designs. - Wide operating temperature range enables usage in various environments.

Disadvantages: - Limited supply voltage range may not be suitable for all applications. - Fixed reset timeout period may not be adjustable for specific requirements.

Working Principles

The TPS3837L30DBVR operates by continuously monitoring the supply voltage connected to the VDD pin. When the voltage drops below the threshold level, the IC generates a reset signal on the RESET pin. This signal can be used to initiate system resets or perform other necessary actions to ensure proper operation.

Detailed Application Field Plans

The TPS3837L30DBVR is commonly used in various applications where reliable voltage monitoring and system reset functionality are required. Some typical application fields include:

1. Battery-Powered Devices: Portable electronics, such as smartphones, tablets, and wearables, benefit from the low power consumption and precise monitoring capabilities of the TPS3837L30DBVR.
2. Industrial Control Systems: The IC ensures stable operation of control systems by providing accurate voltage supervision and reset functionality.
3. Automotive Electronics: The TPS3837L30DBVR can be utilized in automotive applications to monitor critical voltages and trigger system resets when necessary.
4. Medical Equipment: Medical devices rely on precise voltage monitoring for patient safety. The TPS3837L30DBVR offers the required accuracy and reliability.

Detailed and Complete Alternative Models

1. TPS3837K33DBVR: Similar to TPS3837L30DBVR but with a different threshold voltage (3.3V).
2. TPS3837H33DBVR: Similar to TPS3837L30DBVR but with a different threshold voltage (3.3V) and higher operating temperature range (-40°C to +150°C).
3. TPS3837L33DBVR: Similar to TPS3837L30DBVR but with a different threshold voltage (3.3V) and lower operating temperature range (-40°C to +85°C).

These alternative models provide options for different voltage thresholds and operating temperature ranges, allowing designers to choose the most suitable option for their specific application requirements.

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