TPS3836J25DBVR

Overview

Category: Integrated Circuits (ICs)

Use: Voltage Supervisor

Characteristics: - Low Power Consumption - Wide Operating Voltage Range - Adjustable Reset Threshold - Manual Reset Input - Power-On Reset Delay Time: 200 ms (typical) - Open Drain Output - Small Package Size

Package: SOT-23-5

Essence: The TPS3836J25DBVR is a voltage supervisor IC designed to monitor the power supply voltage of electronic systems and provide a reset signal when the voltage drops below a certain threshold.

Packaging/Quantity: The TPS3836J25DBVR is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.2 V to 6.5 V
• Reset Threshold Voltage: Adjustable from 1.8 V to 4.6 V
• Quiescent Current: 3 µA (typical)
• Operating Temperature Range: -40°C to +125°C
• Output Type: Open Drain

Pin Configuration

The TPS3836J25DBVR has a standard SOT-23-5 package with the following pin configuration:

```

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| | --|VDD |-- --|GND |-- --|MR |-- --|RESET|-- |____| ```

Pin Descriptions: - VDD: Supply Voltage - GND: Ground - MR: Manual Reset Input - RESET: Reset Output

Functional Features

1. Voltage Monitoring: The TPS3836J25DBVR continuously monitors the supply voltage and compares it to the adjustable reset threshold.
2. Reset Signal Generation: When the supply voltage drops below the set threshold, the TPS3836J25DBVR generates a reset signal on the RESET pin.
3. Manual Reset Input: The MR pin allows for manual resetting of the device, overriding the voltage monitoring function.
4. Power-On Reset Delay: The TPS3836J25DBVR includes a power-on reset delay of 200 ms (typical) to ensure stable operation during power-up.

Advantages and Disadvantages

Advantages: - Low power consumption - Wide operating voltage range - Adjustable reset threshold - Small package size - Manual reset capability

Disadvantages: - Limited number of pins for additional functionality - Output type is open drain, requiring external pull-up resistor

Working Principles

The TPS3836J25DBVR operates by continuously monitoring the supply voltage using an internal voltage reference. When the supply voltage drops below the set threshold, the IC generates a reset signal on the RESET pin. This signal can be used to initiate system reset or perform other necessary actions. The manual reset input (MR) allows for manual resetting of the device, overriding the voltage monitoring function.

Detailed Application Field Plans

The TPS3836J25DBVR is commonly used in various electronic systems where reliable voltage monitoring and reset functionality are required. Some potential application fields include:

1. Microcontrollers: The TPS3836J25DBVR can be used to monitor the supply voltage of microcontroller-based systems, ensuring proper operation and preventing data corruption during power fluctuations.
2. Embedded Systems: In embedded systems, the TPS3836J25DBVR provides a reset signal to initialize the system upon power-up or in case of voltage drops, improving system reliability.
3. Battery-Powered Devices: By monitoring the battery voltage, the TPS3836J25DBVR helps prevent damage to sensitive components and ensures safe shutdown when the battery voltage reaches critical levels.
4. Industrial Control Systems: The TPS3836J25DBVR is suitable for monitoring power supply voltages in industrial control systems, providing reliable reset signals to maintain system integrity.

Detailed and Complete Alternative Models

1. TPS3837J25DBVR: Similar to the TPS3836J25DBVR, but with a fixed reset threshold voltage of 2.5 V.
2. TPS3838J25DBVR: Similar to the TPS3836J25DBVR, but with a fixed reset threshold voltage of 2.8 V.
3. TPS3839J25DBVR: Similar to the TPS3836J25DBVR, but with a fixed reset threshold voltage of 3.0 V.

These alternative models offer similar functionality but with different fixed reset threshold voltages, allowing for flexibility in various applications.

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