TPS3850G09QDRCRQ1

Product Overview

Category

The TPS3850G09QDRCRQ1 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: 0.4V to 5.5V
• Low quiescent current: 2.7µA (typical)
• Adjustable threshold voltage
• Wide operating temperature range: -40°C to 125°C
• Small package size: VSON-10

Package and Quantity

The TPS3850G09QDRCRQ1 is available in a VSON-10 package. It is typically sold in reels with a quantity of 2500 units per reel.

Specifications

• Supply voltage range: 0.4V to 5.5V
• Threshold voltage options: 0.4V, 0.6V, 0.8V, 1.2V, 1.6V, 2.5V, 3.0V, 3.3V, 3.6V, 4.0V, 4.5V, 5.0V
• Accuracy: ±1.5%
• Power-on reset delay time: 20ms (typical)
• Watchdog timer timeout period: 1.6s (typical)
• Operating temperature range: -40°C to 125°C

Detailed Pin Configuration

The TPS3850G09QDRCRQ1 has the following pin configuration:

1. GND (Ground)
2. RESET (Reset output)
3. MR (Manual reset input)
4. VDD (Supply voltage)
5. VDDH (High voltage supply)
6. VDDSENSE (Voltage sense input)
7. VDDHSENSE (High voltage sense input)
8. GNDH (High voltage ground)
9. NC (No connect)
10. NC (No connect)

Functional Features

• Voltage monitoring: The TPS3850G09QDRCRQ1 continuously monitors the voltage level and provides a reset signal when it falls below or rises above the programmed threshold.
• Manual reset: The MR pin allows for manual reset control, enabling system initialization or recovery.
• Watchdog timer: This product includes a watchdog timer that generates a reset signal if the monitored voltage remains within the threshold range for a specified period.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows for versatile applications.
• Low quiescent current minimizes power consumption.
• Adjustable threshold voltage provides flexibility in voltage monitoring.
• Small package size saves board space.

Disadvantages

• Limited number of threshold voltage options may not suit all applications.
• Noisy environments may affect the accuracy of voltage monitoring.

Working Principles

The TPS3850G09QDRCRQ1 operates by comparing the input voltage with the programmed threshold voltage. If the input voltage falls below or rises above the threshold, the device triggers a reset signal. The manual reset input allows for additional control over the reset function. The watchdog timer ensures that the reset signal is generated if the voltage remains within the threshold range for a specified period.

Detailed Application Field Plans

The TPS3850G09QDRCRQ1 finds applications in various fields, including:

1. Automotive electronics: Used for voltage monitoring in automotive systems to ensure stable operation and prevent damage due to voltage fluctuations.
2. Industrial automation: Employed in industrial control systems to monitor voltage levels and provide reliable reset signals in case of abnormal conditions.
3. Consumer electronics: Integrated into electronic devices to protect sensitive components from voltage variations and ensure proper functioning.
4. Telecommunications: Used in telecom equipment to monitor power supply voltages and initiate system resets if necessary.

Detailed and Complete Alternative Models

1. TPS3850G09QDRCR: Similar to TPS3850G09QDRCRQ1, but without the automotive qualification.
2. TPS3839K33DBVR: A voltage supervisor with fixed threshold voltage of 3.3V and SOT-23 package.
3. TPS3808G01DBVR: Offers adjustable threshold voltage options and comes in a SOT-23 package.

These alternative models provide similar voltage monitoring functionality with slight variations in features and package options.

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