TPS3850H50QDRCRQ1

Product Overview

Category

The TPS3850H50QDRCRQ1 belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and supervising the voltage levels in electronic systems.

Characteristics

• Low-power voltage supervisor
• Wide operating voltage range
• High accuracy
• Adjustable threshold voltage
• Programmable time delay
• Power-on reset generator
• Watchdog timer

Package

The TPS3850H50QDRCRQ1 is available in a small VSON package.

Essence

The essence of the TPS3850H50QDRCRQ1 is to provide reliable voltage monitoring and supervision capabilities in various electronic applications.

Packaging/Quantity

This product is typically packaged in reels, with a quantity of 3000 units per reel.

Specifications

• Operating Voltage Range: 1.8V to 6.5V
• Threshold Voltage Accuracy: ±1%
• Time Delay Range: 1ms to 10s
• Quiescent Current: 2µA (typical)
• Watchdog Timer Timeout Period: 1.6s (typical)

Detailed Pin Configuration

The TPS3850H50QDRCRQ1 has the following pin configuration:

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

Functional Features

1. Voltage Monitoring: The TPS3850H50QDRCRQ1 continuously monitors the input voltage and generates a reset signal when it falls below the programmed threshold.
2. Power-On Reset: It includes a power-on reset generator that ensures proper initialization of the system upon power-up.
3. Watchdog Timer: The integrated watchdog timer provides an additional layer of system protection by resetting the system if it fails to periodically toggle a specific signal.
4. Adjustable Threshold Voltage: The threshold voltage can be adjusted to suit different voltage level requirements.
5. Programmable Time Delay: The time delay for generating the reset signal can be programmed according to the application's needs.

Advantages and Disadvantages

Advantages

• Low-power consumption
• Wide operating voltage range
• Accurate voltage monitoring
• Adjustable threshold voltage and time delay
• Integrated power-on reset and watchdog timer

Disadvantages

• Limited number of available alternative models
• May require additional external components for certain applications

Working Principles

The TPS3850H50QDRCRQ1 operates by continuously monitoring the input voltage using an internal voltage reference. When the voltage falls below the programmed threshold, it triggers the reset output, which can be used to reset the microcontroller or other system components. The power-on reset generator ensures proper initialization upon power-up, while the watchdog timer provides an extra layer of system protection.

Detailed Application Field Plans

The TPS3850H50QDRCRQ1 finds applications in various electronic systems that require reliable voltage monitoring and supervision. Some potential application fields include:

1. Automotive Electronics: Used in automotive control units to monitor critical voltage levels and ensure safe operation.
2. Industrial Automation: Employed in industrial control systems to supervise power supply voltages and prevent malfunctions.
3. Consumer Electronics: Integrated into devices like smartphones and tablets to monitor battery voltage and protect against over-discharge.
4. Medical Devices: Utilized in medical equipment to monitor power supply voltages and trigger appropriate actions in case of abnormalities.

Detailed and Complete Alternative Models

While the TPS3850H50QDRCRQ1 is a highly capable voltage supervisor, there are a few alternative models available in the market that offer similar functionalities. Some notable alternatives include:

1. TPS3839K33DBVR: Low-power voltage supervisor with fixed threshold voltage and adjustable time delay.
2. MAX823LEUK+T: Voltage monitor with a wide operating voltage range and adjustable threshold voltage.
3. ADM6315-26D4ARTZ-R7: Microprocessor supervisory circuit with adjustable threshold voltage and watchdog timer.

These alternative models can be considered based on specific application requirements and design constraints.

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