TPS3851G30EQDRBRQ1

Overview

Category: Integrated Circuits (ICs)

Use: Voltage Supervisors

Characteristics: - Monitors undervoltage and overvoltage conditions - Provides a reset signal to the system when voltage is out of range - Low quiescent current consumption - Wide operating voltage range - Adjustable threshold voltage levels

Package: VSON-10

Essence: The TPS3851G30EQDRBRQ1 is a voltage supervisor IC designed to monitor undervoltage and overvoltage conditions in electronic systems. It ensures that the voltage remains within a safe operating range and provides a reset signal to the system when the voltage goes out of range.

Packaging/Quantity: The TPS3851G30EQDRBRQ1 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: 1.8V to 6.5V
• Threshold Voltage Range: 0.4V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Quiescent Current: 3.5µA (typical)
• Reset Timeout Period: Adjustable from 1ms to 10s

Pin Configuration

The TPS3851G30EQDRBRQ1 has the following pin configuration:

```

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| | --| RESET | --| GND | --| VIN | --| VDD | --| MR | --| OV | --| UV | --| NC | --| NC | |___________| ```

Functional Features

1. Undervoltage Monitoring: The TPS3851G30EQDRBRQ1 continuously monitors the input voltage (VIN) and generates a reset signal when the voltage falls below the undervoltage threshold level (UV).
2. Overvoltage Monitoring: It also detects overvoltage conditions by comparing the input voltage with the overvoltage threshold level (OV). A reset signal is generated when the voltage exceeds this threshold.
3. Adjustable Threshold Levels: The UV and OV threshold levels can be adjusted using external resistors, allowing flexibility in setting the desired voltage range for monitoring.
4. Reset Timeout Period: The reset signal remains active for a programmable timeout period (MR pin), which can be set from 1ms to 10s. This ensures that the system has enough time to recover from voltage fluctuations before being reset.

Advantages

• Provides reliable voltage monitoring and reset functionality for electronic systems.
• Low quiescent current consumption helps conserve power.
• Wide operating voltage range makes it suitable for various applications.
• Adjustable threshold levels offer flexibility in voltage monitoring.

Disadvantages

• Limited number of available pins for additional functionalities.
• Requires external resistors for adjusting threshold levels.

Working Principles

The TPS3851G30EQDRBRQ1 operates by comparing the input voltage (VIN) with the user-adjustable undervoltage (UV) and overvoltage (OV) threshold levels. When the voltage goes below the UV threshold or exceeds the OV threshold, the IC generates a reset signal (RESET) to indicate an out-of-range condition. The reset signal remains active for a programmable timeout period (MR pin) before deactivating.

Application Field Plans

The TPS3851G30EQDRBRQ1 is commonly used in various applications where voltage monitoring and system reset functionality are critical. Some potential application fields include:

1. Automotive Electronics: Used in automotive control units to monitor and protect critical systems from voltage fluctuations.
2. Industrial Automation: Ensures stable operation of industrial control systems by providing reliable voltage supervision.
3. Power Management: Integrated into power supply units to safeguard sensitive electronic components from voltage anomalies.
4. Consumer Electronics: Incorporated in devices like smartphones, tablets, and gaming consoles to prevent damage due to voltage variations.

Alternative Models

1. TPS3850G30EQDRBRQ1
2. TPS3851G33EQDRBRQ1
3. TPS3851G33DRCR
4. TPS3851G33DCKR
5. TPS3851G33DBVR

These alternative models offer similar voltage monitoring and reset functionality, but may have different specifications or package options.

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