TPS3851G33SQDRBRQ1

Overview

Category: Integrated Circuits (ICs)

Use: Voltage Supervisors

Characteristics: - Monitors voltage levels in electronic systems - Provides reset signals during power-up, power-down, and brownout conditions - Ensures reliable system operation by preventing data corruption or loss

Package: VSON-10 (Very Small Outline No-Lead) package

Essence: The TPS3851G33SQDRBRQ1 is a voltage supervisor IC that ensures the stable and reliable operation of electronic systems by monitoring voltage levels and providing reset signals when necessary.

Packaging/Quantity: The TPS3851G33SQDRBRQ1 is available in a VSON-10 package. It is typically sold in reels containing a specific quantity determined by the manufacturer.

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Operating Temperature Range: -40°C to +125°C
• Reset Threshold Voltage: 3.08V
• Watchdog Timer Timeout Period: 1.6s
• Quiescent Current: 4µA (typical)
• Output Type: Active Low

Pin Configuration

The TPS3851G33SQDRBRQ1 has the following pin configuration:

```

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| | --| RESET | --| GND | --| MR | --| VDD | --| VIT | --| VOS | --| VBAT | --| NC | --| VDDA | |___________| ```

Functional Features

1. Voltage Monitoring: The TPS3851G33SQDRBRQ1 continuously monitors the voltage levels of the system.
2. Reset Generation: It generates a reset signal when the voltage falls below the specified threshold, ensuring proper system initialization.
3. Watchdog Timer: The integrated watchdog timer prevents system lock-up by generating a reset signal if the system fails to respond within the specified timeout period.
4. Low Power Consumption: The IC operates with low quiescent current, minimizing power consumption.

Advantages and Disadvantages

Advantages: - Reliable voltage monitoring and reset generation - Integrated watchdog timer for enhanced system reliability - Low power consumption for energy-efficient operation

Disadvantages: - Limited to specific voltage range (1.6V to 6.5V) - Active low output type may require additional level shifting circuitry in some applications

Working Principles

The TPS3851G33SQDRBRQ1 works by continuously monitoring the voltage levels of the system. When the voltage falls below the specified threshold, it generates a reset signal to ensure proper system initialization. Additionally, the integrated watchdog timer monitors the system's response and generates a reset signal if the system fails to respond within the specified timeout period.

Detailed Application Field Plans

The TPS3851G33SQDRBRQ1 is commonly used in various electronic systems where reliable voltage monitoring and reset generation are critical. Some application fields include:

1. Automotive Electronics: Used in automotive control units to monitor and reset microcontrollers during power-up and brownout conditions.
2. Industrial Automation: Ensures reliable operation of PLCs (Programmable Logic Controllers) and other industrial automation equipment.
3. Telecommunications: Provides voltage supervision and reset functionality in telecom infrastructure equipment such as base stations and routers.
4. Consumer Electronics: Used in smart home devices, IoT (Internet of Things) devices, and other consumer electronics to ensure stable operation and prevent data corruption.

Detailed and Complete Alternative Models

1. TPS3850: Similar voltage supervisor IC with a different reset threshold voltage.
2. TPS3839: Voltage supervisor IC with adjustable reset threshold voltage and watchdog timer functionality.
3. TLV803: Low-power voltage supervisor IC with a wide supply voltage range.

These alternative models offer similar functionality to the TPS3851G33SQDRBRQ1 and can be considered as alternatives based on specific application requirements.

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