TPS3125G15DBVR

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Monitoring, Reset Generation
• Package: SOT-23-5
• Essence: Monolithic CMOS Circuitry
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Supply Voltage Range: 1.2V to 6V
• Threshold Voltage Options: 1.575V, 2.32V, 3.06V, 4.38V
• Accuracy: ±1%
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TPS3125G15DBVR has a total of five pins:

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

Functional Features

• Precision Monitoring: The TPS3125G15DBVR provides accurate monitoring of the supply voltage.
• Reset Generation: It generates an active-low reset signal when the monitored voltage falls below the threshold.
• Manual Reset Input: The MR pin allows for manual reset control.
• Adjustable Threshold Voltage: The TH pin enables the selection of different threshold voltage options.

Advantages and Disadvantages

Advantages: - Low power consumption - Wide supply voltage range - Small package size - Adjustable threshold voltage options

Disadvantages: - Limited number of threshold voltage options - No built-in hysteresis

Working Principles

The TPS3125G15DBVR operates by continuously monitoring the supply voltage using a precision voltage reference. When the voltage drops below the selected threshold, the IC generates an active-low reset signal. This signal remains active until the supply voltage rises above the threshold and stabilizes.

Detailed Application Field Plans

The TPS3125G15DBVR is commonly used in various applications that require reliable voltage monitoring and reset generation. Some of its typical application fields include:

1. Microcontrollers: Ensuring proper system initialization and preventing data corruption during power-up or brownout conditions.
2. Industrial Control Systems: Providing fault detection and recovery capabilities for critical equipment.
3. Automotive Electronics: Monitoring battery voltage and triggering system resets in case of undervoltage conditions.
4. Power Management: Enabling efficient power sequencing and protection in multi-voltage systems.

Detailed and Complete Alternative Models

1. TPS3125G18DBVR: Similar to TPS3125G15DBVR but with different threshold voltage options (1.8V, 2.6V, 3.4V, 4.63V).
2. TPS3125G25DBVR: Similar to TPS3125G15DBVR but with different threshold voltage options (2.5V, 3.7V, 4.9V, 6.13V).
3. TPS3125G33DBVR: Similar to TPS3125G15DBVR but with different threshold voltage options (3.3V, 4.6V, 5.8V, 7.03V).

These alternative models provide flexibility in selecting the desired threshold voltage for specific applications.

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