TPS3851G30EDRBR

Overview

Product Category

The TPS3851G30EDRBR belongs to the category of voltage supervisors or monitors.

Use

This product is primarily used for monitoring and supervising voltage levels in electronic systems.

Characteristics

• The TPS3851G30EDRBR is a highly accurate voltage supervisor with a fixed threshold voltage.
• It operates over a wide input voltage range, making it suitable for various applications.
• This device offers a precise power-on reset signal during power-up and power-down sequences.
• It has a low quiescent current consumption, ensuring minimal power loss in the system.
• The TPS3851G30EDRBR provides a manual reset input for external control.

Package and Quantity

The TPS3851G30EDRBR is available in a small 6-pin WSON package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 1.8V to 6.5V
• Fixed Threshold Voltage: 3.0V
• Quiescent Current: 2.5µA (typical)
• Manual Reset Input Voltage: 0.4V (minimum), VDD (maximum)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The TPS3851G30EDRBR has the following pin configuration:

```

---

| | --| VDD | --| GND | --| MR | --| RESET | --| NRESET | |___________| ```

• VDD: Power supply input
• GND: Ground reference
• MR: Manual reset input
• RESET: Active-low reset output
• NRESET: Active-high reset output

Functional Features

1. Accurate Voltage Monitoring: The TPS3851G30EDRBR provides precise monitoring of voltage levels, ensuring reliable system operation.

2. Power-On Reset Signal: It generates a power-on reset signal during power-up and power-down sequences, enabling proper initialization of the system.

3. Wide Input Voltage Range: This device operates over a wide input voltage range, making it suitable for various applications with different power supply voltages.

4. Low Quiescent Current: With a low quiescent current consumption, the TPS3851G30EDRBR minimizes power loss in the system, enhancing overall energy efficiency.

5. Manual Reset Input: The presence of a manual reset input allows external control over the reset function, providing flexibility in system design.

Advantages and Disadvantages

Advantages

• High accuracy in voltage monitoring
• Wide operating voltage range
• Low quiescent current consumption
• Manual reset input for external control

Disadvantages

• Fixed threshold voltage may limit its applicability in certain systems requiring different voltage levels.

Working Principles

The TPS3851G30EDRBR works by continuously monitoring the input voltage level. When the voltage falls below the fixed threshold voltage (3.0V), the device asserts the reset output signals (RESET and NRESET) to indicate a power-on reset condition. These signals remain active until the input voltage rises above the threshold voltage.

Application Field Plans

The TPS3851G30EDRBR finds application in various electronic systems where accurate voltage monitoring is crucial. Some potential fields of application include:

1. Microcontrollers: Ensuring stable power supply voltage for microcontrollers, preventing data corruption or erratic behavior during power fluctuations.

2. Industrial Control Systems: Monitoring voltage levels in industrial control systems to prevent damage to sensitive components and ensure reliable operation.

3. Automotive Electronics: Voltage supervision in automotive electronics, safeguarding critical systems from voltage drops or spikes.

4. Battery-Powered Devices: Monitoring battery voltage in portable devices to prevent over-discharge and protect the battery life.

Alternative Models

1. TPS3850G33DBVR: Similar voltage supervisor with a fixed threshold voltage of 3.3V.
2. TPS3839K33DBVR: Voltage supervisor with adjustable threshold voltage and low quiescent current.
3. TPS3808G01DBVR: Ultra-low-power voltage supervisor with programmable delay time and manual reset input.

These alternative models offer different features and specifications, providing flexibility for various application requirements.

Word count: 550 words