TPS3103K33DBVR

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Voltage Monitoring
• Package: SOT-23-5
• Essence: Monitors and controls the voltage level of a system
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.8V to 6.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.23V, 3.38V, 3.63V, 4.00V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.5µA (typical)
• Output Type: Active-Low, Open-Drain
• Power-On Reset Delay Time: 20ms (typical)

Detailed Pin Configuration

The TPS3103K33DBVR has a total of 5 pins:

1. GND: Ground pin
2. VDD: Positive supply voltage input
3. RESET: Active-low reset output
4. MR: Manual reset input
5. TH: Threshold voltage selection input

Functional Features

• Precision voltage monitoring: The TPS3103K33DBVR accurately monitors the voltage level of a system, ensuring stable operation.
• Low power consumption: With a quiescent current of only 1.5µA, the IC minimizes power consumption, making it suitable for battery-powered applications.
• Power-on reset delay: The device provides a power-on reset delay of 20ms, allowing sufficient time for the system to stabilize before operation.

Advantages and Disadvantages

Advantages: - High precision voltage monitoring ensures reliable system operation. - Low power consumption extends battery life in portable devices. - Small package size (SOT-23-5) enables space-saving designs.

Disadvantages: - Limited threshold voltage options may not cater to all system requirements. - Lack of built-in hysteresis may result in potential oscillations near the threshold voltage.

Working Principles

The TPS3103K33DBVR operates by comparing the input voltage with a user-selectable threshold voltage. When the input voltage falls below the threshold, the RESET pin is pulled low, indicating a power-on reset condition. The MR pin allows for manual reset control. The IC continuously monitors the voltage level and provides a stable output until the voltage rises above the threshold.

Detailed Application Field Plans

The TPS3103K33DBVR finds applications in various fields, including:

1. Battery-Powered Devices: It ensures proper power management and prevents damage due to undervoltage conditions.
2. Industrial Control Systems: The IC provides reliable voltage monitoring in industrial automation systems, preventing malfunctions and ensuring safe operation.
3. Automotive Electronics: It plays a crucial role in automotive applications, such as engine control units and safety systems, by monitoring critical voltage levels.
4. Consumer Electronics: The TPS3103K33DBVR enhances the performance and reliability of consumer electronic devices, such as smartphones, tablets, and wearables.

Detailed and Complete Alternative Models

1. TPS3103K33DBVT: Similar to TPS3103K33DBVR but available in a SOT-23-6 package.
2. TPS3103K33DBVTE4: Enhanced version with extended temperature range (-40°C to +125°C).
3. TPS3103K33DBVTG4: RoHS-compliant variant of TPS3103K33DBVT.

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