TPS3123J12DBVTG4 - English Editing Encyclopedia Entry

Product Overview

Category

The TPS3123J12DBVTG4 belongs to the category of integrated circuits (ICs).

Use

This IC is primarily used for voltage monitoring and supervision in various electronic systems.

Characteristics

• Voltage monitoring range: 0.6V to 5.5V
• Adjustable threshold voltage
• Low quiescent current consumption
• Wide operating temperature range: -40°C to 125°C
• Small package size: SOT-23-5

Package and Quantity

The TPS3123J12DBVTG4 is available in a SOT-23-5 package. It is typically sold in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Supply voltage range: 1.2V to 5.5V
• Threshold voltage accuracy: ±1.5%
• Quiescent current: 1.5µA (typical)
• Power-on reset delay time: 100ms (typical)
• Operating temperature range: -40°C to 125°C

Pin Configuration

The TPS3123J12DBVTG4 has a total of 5 pins, which are assigned specific functions:

1. GND: Ground pin
2. VDD: Supply voltage input
3. MR: Manual reset input
4. RESET: Reset output
5. TH: Threshold voltage adjustment pin

Functional Features

• Voltage monitoring: The TPS3123J12DBVTG4 continuously monitors the supply voltage and provides a reset signal when it falls below a user-defined threshold.
• Adjustable threshold voltage: The TH pin allows users to set the desired threshold voltage according to their application requirements.
• Power-on reset delay: The IC incorporates a delay circuit to ensure stable operation during power-up, preventing premature reset signals.
• Manual reset input: The MR pin allows for manual triggering of the reset signal, overriding the voltage monitoring function temporarily.

Advantages and Disadvantages

Advantages

• Wide operating voltage range enables compatibility with various systems.
• Adjustable threshold voltage provides flexibility in voltage monitoring applications.
• Low quiescent current consumption minimizes power consumption in battery-powered devices.
• Small package size allows for space-efficient integration into compact electronic designs.

Disadvantages

• Limited number of pins may restrict the IC's functionality in complex systems requiring additional inputs/outputs.
• Lack of built-in hysteresis may result in potential oscillations near the threshold voltage.

Working Principles

The TPS3123J12DBVTG4 operates based on a voltage comparator principle. It compares the supply voltage with the user-defined threshold voltage set via the TH pin. When the supply voltage falls below the threshold, the RESET output is activated, indicating a power failure or low voltage condition.

Detailed Application Field Plans

The TPS3123J12DBVTG4 finds application in various fields, including but not limited to: 1. Battery-powered devices: Provides voltage monitoring and ensures safe shutdown in case of low battery voltage. 2. Industrial automation: Monitors power supply integrity and triggers system resets in case of voltage fluctuations. 3. Automotive electronics: Ensures reliable operation by monitoring critical voltages in automotive systems. 4. Telecommunications: Protects sensitive equipment by detecting power supply abnormalities and initiating appropriate actions.

Detailed Alternative Models

For users seeking alternative options, the following integrated circuits can be considered: 1. TPS3125J18DBVR 2. MAX823LEUK-T 3. ADM708TARZ

These models offer similar voltage monitoring and reset functionalities, catering to diverse application requirements.

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