TPS3847108DBVT

Product Overview

Category

The TPS3847108DBVT belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and controlling the voltage levels in electronic circuits.

Characteristics

• Voltage supervision range: 0.4V to 5.5V
• Adjustable threshold voltage
• Low quiescent current consumption
• Wide operating temperature range: -40°C to 125°C
• Small package size: SOT-23 (DBV)

Package

The TPS3847108DBVT is available in a small SOT-23 package, which is commonly referred to as DBV.

Essence

The essence of the TPS3847108DBVT is its ability to provide accurate voltage monitoring and reset generation in various electronic applications.

Packaging/Quantity

The TPS3847108DBVT is typically sold in reels containing a specific quantity, such as 3000 units per reel.

Specifications

• Supply voltage range: 1.2V to 5.5V
• Threshold voltage accuracy: ±1.5%
• Quiescent current: 3µA (typical)
• Power-on reset delay time: 200ms (typical)
• Watchdog timer timeout period: 1.6s (typical)
• Operating temperature range: -40°C to 125°C

Detailed Pin Configuration

The TPS3847108DBVT has the following pin configuration:

1. GND (Ground)
2. RESET (Reset Output)
3. MR (Manual Reset Input)
4. VDD (Supply Voltage)

Functional Features

• Accurate voltage monitoring: The TPS3847108DBVT ensures precise monitoring of the supply voltage, enabling reliable operation of the connected circuitry.
• Reset generation: It generates a reset signal when the supply voltage falls below a certain threshold, ensuring proper system initialization.
• Manual reset capability: The MR pin allows for manual reset input, providing flexibility in system control.
• Watchdog timer: The integrated watchdog timer feature helps detect and recover from system malfunctions or lock-ups.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various electronic systems.
• Adjustable threshold voltage enables customization based on specific application requirements.
• Low quiescent current consumption minimizes power consumption in battery-powered devices.
• Small package size facilitates space-constrained designs.

Disadvantages

• Limited to voltage monitoring and reset generation functionality, may not suit applications requiring more complex supervision features.
• Not suitable for high-voltage applications beyond the specified voltage range.

Working Principles

The TPS3847108DBVT operates by continuously monitoring the supply voltage. When the voltage drops below the set threshold, it triggers the reset output, initiating a system reset. The device also incorporates a watchdog timer that detects abnormal system behavior and generates a reset signal if necessary. The manual reset input allows for additional control over the reset function.

Detailed Application Field Plans

The TPS3847108DBVT finds applications in various fields, including but not limited to: - Microcontrollers and microprocessors - Industrial automation systems - Automotive electronics - Power management circuits - Battery-powered devices - Communication equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the TPS3847108DBVT include: - TPS3840: Fixed threshold voltage supervisors - TPS3808: Ultra-low-power voltage supervisors - MAX823: Microprocessor supervisory circuits - ADM6315: Precision voltage monitors

These alternative models provide options with different features and specifications, allowing designers to choose the most suitable solution for their specific application requirements.

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