TPS3850H30QDRCRQ1

Overview

Product Category

The TPS3850H30QDRCRQ1 belongs to the category of voltage supervisors.

Use

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

Characteristics

• Voltage threshold: 3.0V
• Low quiescent current: 2.5µA (typical)
• Wide operating temperature range: -40°C to +125°C
• Adjustable power-on reset delay time
• Power supply glitch immunity
• Small package size

Package

The TPS3850H30QDRCRQ1 is available in a small 6-pin WSON package.

Essence

The essence of the TPS3850H30QDRCRQ1 is its ability to provide accurate voltage monitoring and supervision, ensuring reliable operation of electronic systems.

Packaging/Quantity

This product is typically packaged in reels, with 2500 units per reel.

Specifications

• Supply voltage range: 1.8V to 6.5V
• Reset threshold accuracy: ±1.5%
• Power-on reset delay time range: 20ms to 10s
• Quiescent current: 2.5µA (typical)
• Watchdog timer timeout period: 1.6s (typical)

Detailed Pin Configuration

The TPS3850H30QDRCRQ1 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

1. Voltage Monitoring: The TPS3850H30QDRCRQ1 continuously monitors the input voltage and provides a reset signal when it falls below the threshold voltage.
2. Power-On Reset: It includes an adjustable power-on reset delay time, ensuring that the system remains in a reset state until the supply voltage stabilizes.
3. Watchdog Timer: The integrated watchdog timer monitors the system's operation and generates a reset signal if it detects a fault or malfunction.
4. Glitch Immunity: The device is designed to be immune to power supply glitches, preventing false resets caused by transient voltage fluctuations.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring
• Wide operating temperature range
• Low quiescent current consumption
• Adjustable power-on reset delay time
• Glitch immunity for reliable operation

Disadvantages

• Limited number of pins for additional functionality
• Requires external components for proper operation

Working Principles

The TPS3850H30QDRCRQ1 operates by comparing the input voltage with a fixed threshold voltage. When the input voltage drops below the threshold, the reset output is activated, signaling a low-voltage condition. The power-on reset delay ensures that the reset output remains active until the supply voltage stabilizes, preventing premature system operation.

The integrated watchdog timer continuously monitors the system's operation by periodically receiving a watchdog input signal. If the watchdog input signal is not received within the specified timeout period, the reset output is triggered, indicating a fault or malfunction in the system.

Detailed Application Field Plans

The TPS3850H30QDRCRQ1 finds applications in various electronic systems where accurate voltage monitoring and supervision are critical. Some potential application fields include:

1. Automotive Electronics: Used in automotive control units to ensure stable operation and prevent damage due to voltage fluctuations.
2. Industrial Automation: Employed in industrial control systems to monitor power supply integrity and provide reliable reset signals.
3. Consumer Electronics: Integrated into devices such as smartphones and tablets to protect against low-voltage conditions and ensure proper functioning.
4. Medical Devices: Utilized in medical equipment to monitor voltage levels and provide timely reset signals in case of power supply abnormalities.

Detailed and Complete Alternative Models

1. TPS3850H33QDRCRQ1: Similar to the TPS3850H30QDRCRQ1, but with a higher voltage threshold of 3.3V.
2. TPS3850H50QDRCRQ1: Offers a higher voltage threshold of 5.0V, suitable for applications requiring a higher operating voltage range.
3. TPS3850H01QDRCRQ1: Provides a lower voltage threshold of 1.0V, ideal for systems with lower supply voltages.

These alternative models offer similar functionality with slight variations in voltage thresholds to cater to different application requirements.

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