TPS3125G15DBVRG4

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Monitoring, Adjustable Thresholds
• Package: SOT-23 (Small Outline Transistor)
• Essence: Monitors and controls the voltage levels in electronic systems
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.8µA (typical)
• Threshold Accuracy: ±1.5%
• Reset Time Delay: 200ms (typical)

Detailed Pin Configuration

The TPS3125G15DBVRG4 has a total of 5 pins:

1. GND: Ground connection.
2. VDD: Positive supply voltage input.
3. MR: Manual reset input. Active-low input used to force a reset.
4. RESET: Output signal indicating the system is in a reset state.
5. TH: Threshold pin for setting the desired voltage threshold.

Functional Features

• Precision Monitoring: The TPS3125G15DBVRG4 provides accurate monitoring of voltage levels, ensuring reliable operation of electronic systems.
• Adjustable Thresholds: The threshold voltage can be set using an external resistor, allowing flexibility in monitoring different voltage levels.
• Power-On Reset: The device generates a reset signal when the supply voltage rises above the threshold voltage, ensuring proper initialization of the system.
• Manual Reset Input: The manual reset input allows for a forced reset, overriding the normal operation of the device.

Advantages and Disadvantages

Advantages: - Low power consumption, making it suitable for battery-powered applications. - Small package size enables space-saving designs. - Adjustable threshold voltage provides flexibility in different applications.

Disadvantages: - Limited supply voltage range (1.2V to 6V). - Threshold accuracy may not be sufficient for highly precise applications.

Working Principles

The TPS3125G15DBVRG4 operates by comparing the supply voltage with a user-defined threshold voltage. When the supply voltage rises above the threshold, the device generates a reset signal, indicating that the system is in a reset state. The threshold voltage can be adjusted using an external resistor connected to the TH pin. The device continuously monitors the supply voltage and generates the reset signal until the supply voltage drops below the threshold.

Detailed Application Field Plans

The TPS3125G15DBVRG4 is commonly used in various electronic systems where voltage monitoring and control are critical. Some application fields include:

1. Power Management: The IC ensures proper power sequencing and voltage monitoring in power management circuits.
2. Microcontrollers: It provides a reliable reset signal during power-up, ensuring correct initialization of microcontroller-based systems.
3. Industrial Control Systems: The device helps monitor and control voltage levels in industrial control systems, ensuring stable operation.
4. Automotive Electronics: It is used in automotive applications to monitor and control voltage levels in various subsystems, enhancing overall reliability.

Detailed and Complete Alternative Models

1. TPS3125G18DBVRG4: Similar to TPS3125G15DBVRG4 but with a higher threshold voltage.
2. TPS3125G25DBVRG4: Similar to TPS3125G15DBVRG4 but with a lower threshold voltage.
3. TPS3125G30DBVRG4: Similar to TPS3125G15DBVRG4 but with a higher threshold voltage and extended temperature range.

These alternative models offer similar functionality but with different threshold voltages and temperature ranges, allowing for customization based on specific application requirements.

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