TPS3836K33DBVT

Product Overview

Category

The TPS3836K33DBVT 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: 3.3V
• Low quiescent current: 1.5µA (typical)
• Wide operating temperature range: -40°C to +125°C
• Adjustable delay time
• Power-on reset generator with fixed delay time
• Open-drain output
• Small package size: SOT-23-5

Package and Quantity

The TPS3836K33DBVT is available in a SOT-23-5 package. It is typically sold in reels of 3000 units.

Specifications

• Supply voltage range: 1.8V to 10V
• Reset threshold accuracy: ±1.5%
• Reset threshold options: 2.5V, 3V, 3.3V, 3.6V, 4.38V, 5V, 5.5V, 6V, 6.9V, 7.6V, 8.1V, 8.5V, 9.3V
• Delay time options: 20ms, 100ms, 200ms, 400ms, 800ms, 1.6s, 3.2s, 6.4s
• Quiescent current: 1.5µA (typical), 2.5µA (maximum)
• Output current: 10mA (maximum)

Pin Configuration

The TPS3836K33DBVT has the following pin configuration:

```

---

| | --|VDD |-- Pin 1: Supply voltage (1.8V to 10V) --|GND |-- Pin 2: Ground --|MR |-- Pin 3: Manual reset input --|RST |-- Pin 4: Reset output --|GND |-- Pin 5: Ground |____| ```

Functional Features

• Power-on reset generation
• Monitoring of supply voltage
• Adjustable delay time for reset signal
• Open-drain reset output
• Manual reset input for immediate system reset

Advantages and Disadvantages

Advantages

• Wide operating temperature range makes it suitable for various environments
• Low quiescent current helps in power-saving applications
• Adjustable delay time allows flexibility in system design
• Small package size enables space-constrained designs

Disadvantages

• Limited output current may not be suitable for high-power applications
• Fixed reset threshold options may not meet all voltage monitoring requirements

Working Principles

The TPS3836K33DBVT is a voltage supervisor that monitors the supply voltage of an electronic system. It generates a reset signal when the voltage falls below a specified threshold. The delay time for the reset signal can be adjusted according to the application requirements. The open-drain reset output can be connected to the reset pin of the microcontroller or other devices to initiate a system reset. Additionally, a manual reset input is provided for immediate system reset.

Application Field Plans

The TPS3836K33DBVT can be used in various applications where voltage monitoring and system reset are critical. Some potential application fields include:

1. Battery-powered devices: Ensuring proper shutdown and system reset when the battery voltage drops below a certain level.
2. Industrial control systems: Monitoring power supply voltages to prevent damage to sensitive equipment during voltage fluctuations.
3. Automotive electronics: Providing reliable reset signals to microcontrollers and other components in automotive systems.
4. Home automation: Ensuring proper functioning and system reset in smart home devices during power supply issues.

Alternative Models

1. TPS3836K33DBVR: Similar to TPS3836K33DBVT, but available in a smaller SOT-23-3 package.
2. TPS3836K33DQVR: Offers additional features like watchdog timer and adjustable reset threshold.
3. TPS3836K33DRVT: Provides a higher output current of 50mA for applications requiring more drive capability.

These alternative models offer similar functionality with slight variations in package size, additional features, or output current capabilities.

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