TPS3851G18EDRBR

Overview

Product Category

The TPS3851G18EDRBR belongs to the category of voltage supervisors.

Use

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

Characteristics

• Voltage supervision range: 0.8V to 5.5V
• Adjustable threshold voltage
• Low quiescent current consumption
• Wide operating temperature range: -40°C to 125°C
• Small package size: 6-pin WSON

Package and Quantity

The TPS3851G18EDRBR is available in a 6-pin WSON package. It is typically sold in reels, with a quantity of 2500 units per reel.

Specifications

• Supply voltage range: 0.8V to 5.5V
• Threshold voltage accuracy: ±1%
• Quiescent current: 2.5µA (typical)
• Power-on reset delay time: 200ms (typical)
• Watchdog timer timeout period: 1.6s (typical)
• Operating temperature range: -40°C to 125°C

Pin Configuration

The TPS3851G18EDRBR has the following pin configuration:

1. GND (Ground)
2. VDD (Supply Voltage)
3. MR (Manual Reset)
4. RESET (Reset Output)
5. WD (Watchdog Input)
6. NC (No Connect)

Functional Features

• Voltage monitoring: The TPS3851G18EDRBR continuously monitors the supply voltage and provides a reset signal when it falls below or rises above the user-defined threshold.
• Manual reset: The MR pin allows for manual reset control, enabling system initialization or recovery.
• Watchdog timer: The device includes a watchdog input that can be used to monitor system activity. If the watchdog input is not toggled within the specified timeout period, a reset signal is generated.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows for compatibility with various electronic systems.
• Adjustable threshold voltage provides flexibility in voltage monitoring applications.
• Low quiescent current consumption helps to minimize power consumption in battery-powered devices.
• Small package size enables space-saving designs.

Disadvantages

• Limited number of pins may restrict the device's functionality in complex systems.
• Lack of built-in hysteresis may result in potential noise-related issues during voltage transitions.

Working Principles

The TPS3851G18EDRBR operates by comparing the supply voltage against the user-defined threshold voltage. When the supply voltage falls below or rises above this threshold, the device generates a reset signal. The manual reset pin allows for additional control over the reset function, while the watchdog timer ensures system integrity by monitoring system activity.

Application Field Plans

The TPS3851G18EDRBR finds application in various fields, including but not limited to: - Power management systems - Industrial automation - Automotive electronics - Consumer electronics - Medical devices

Alternative Models

Some alternative models that offer similar functionality to the TPS3851G18EDRBR include: - TPS3839G18DBVR - MAX823LEUK-T - ADM708TARZ

These models can be considered as alternatives based on specific requirements and design considerations.

In conclusion, the TPS3851G18EDRBR is a voltage supervisor that offers precise voltage monitoring, low power consumption, and flexible configuration options. Its small package size and wide operating temperature range make it suitable for various applications in different industries. However, designers should consider the limited pin count and absence of built-in hysteresis when selecting this device for their specific system requirements.

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