TPS3837J25DBVT

Overview

Product Category

The TPS3837J25DBVT belongs to the category of voltage supervisors.

Use

This product is primarily used for monitoring and controlling the voltage levels in electronic circuits.

Characteristics

• Voltage threshold: 2.5V
• Accuracy: ±1%
• Low quiescent current: 3 µA (typical)
• Wide operating temperature range: -40°C to +125°C
• Power-on reset delay time: 200 ms (typical)

Package

The TPS3837J25DBVT is available in a small SOT-23-5 package, which is suitable for space-constrained applications.

Essence

The essence of the TPS3837J25DBVT is its ability to provide accurate voltage monitoring and reset functionality in various electronic systems.

Packaging/Quantity

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

Specifications

• Supply voltage range: 1.6V to 6.5V
• Reset threshold options: 2.5V, 3V, 3.3V, 5V
• Reset output options: Active-low, push-pull, open-drain
• Reset timeout options: Fixed or adjustable
• Power supply glitch immunity: 50 ns (typical)
• Low power consumption during operation and standby

Pin Configuration

The TPS3837J25DBVT has the following pin configuration:

```

---

| | --| VDD | --| GND | --| RESET | --| MR | --| N/C | |_______| ```

• VDD: Power supply input
• GND: Ground reference
• RESET: Reset output
• MR: Manual reset input
• N/C: No connection

Functional Features

1. Voltage Monitoring: The TPS3837J25DBVT continuously monitors the voltage level and provides a reset signal when it falls below the specified threshold.
2. Power-On Reset: Upon power-up, the device ensures a stable reset output until the supply voltage reaches the desired operating level.
3. Manual Reset: The manual reset input allows for an external reset signal to override the internal monitoring function.
4. Glitch Immunity: The device is designed to ignore short-duration voltage glitches, ensuring reliable operation in noisy environments.
5. Low Power Consumption: The TPS3837J25DBVT consumes minimal power during operation and standby, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring with adjustable threshold options
• Wide operating temperature range enables use in various environments
• Small package size ideal for space-constrained applications
• Low power consumption prolongs battery life
• Glitch immunity ensures reliable operation in noisy conditions

Disadvantages

• Limited reset timeout options
• Lack of integrated watchdog timer functionality

Working Principles

The TPS3837J25DBVT operates by comparing the supply voltage against a fixed threshold. When the voltage drops below the threshold, the reset output is activated, indicating a power failure or abnormal condition. The device continuously monitors the voltage and keeps the reset output active until the voltage rises above the threshold or a manual reset signal is received.

Detailed Application Field Plans

The TPS3837J25DBVT finds applications in various fields, including:

1. Automotive Electronics: Used for voltage monitoring in automotive control units, sensors, and safety systems.
2. Industrial Automation: Ensures reliable operation of PLCs, motor drives, and power supplies by providing accurate voltage monitoring.
3. Consumer Electronics: Enables proper shutdown and protection of sensitive components in smartphones, tablets, and gaming consoles during power fluctuations.
4. Medical Devices: Monitors voltage levels in medical equipment to ensure patient safety and proper functioning.
5. Internet of Things (IoT): Provides voltage supervision in IoT devices, ensuring reliable operation and preventing data loss.

Detailed and Complete Alternative Models

1. TPS3837K33DBVT: Similar to TPS3837J25DBVT but with a 3.3V reset threshold.
2. TPS3837L30DBVT: Similar to TPS3837J25DBVT but with a 3V reset threshold.
3. TPS3837H50DBVT: Similar to TPS3837J25DBVT but with a 5V reset threshold.
4. TPS3837P20DBVT: Similar to TPS3837J25DBVT but with an adjustable reset threshold.

These alternative models provide flexibility in choosing the appropriate reset threshold for specific applications.

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