Texas Instruments
รูปภาพอาจเป็นภาพแทน
ดูข้อมูลจำเพาะสำหรับรายละเอียดสินค้า.
TPS3513DR
ดูรายละเอียด แผ่นข้อมูล

TPS3513DR

Product Overview

Category

The TPS3513DR belongs to the category of integrated circuits (ICs).

Use

It is primarily used as a power supply supervisor and watchdog timer.

Characteristics

  • Power supply supervisor with programmable voltage monitoring
  • Watchdog timer for system reset
  • Low quiescent current consumption
  • Wide operating voltage range
  • Small package size

Package

The TPS3513DR is available in a small outline package (SOP) with 8 pins.

Essence

The essence of the TPS3513DR lies in its ability to monitor and control the power supply voltage, ensuring stable operation of the system. Additionally, it incorporates a watchdog timer to prevent system lock-ups.

Packaging/Quantity

The TPS3513DR is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Supply Voltage Range: 2.7V to 6.5V
  • Operating Temperature Range: -40°C to +85°C
  • Quiescent Current: 1.5µA (typical)
  • Watchdog Timeout Period: Programmable (1.6s to 25.6s)

Detailed Pin Configuration

The TPS3513DR has the following pin configuration:

  1. VDD: Power supply input
  2. GND: Ground reference
  3. MR: Manual reset input
  4. WDI: Watchdog input
  5. RESET: Active-low reset output
  6. VBAT: Battery voltage input
  7. VOUT: Regulated output voltage
  8. NC: No connection

Functional Features

  1. Power Supply Monitoring: The TPS3513DR continuously monitors the power supply voltage and generates a reset signal if it falls below a programmable threshold.
  2. Watchdog Timer: It incorporates a watchdog timer that requires periodic input pulses to prevent system lock-ups. If the pulses are not received within the specified timeout period, a system reset is triggered.
  3. Manual Reset: The manual reset input allows for an external reset signal to be applied, overriding the internal monitoring and watchdog functions.

Advantages and Disadvantages

Advantages

  • Programmable voltage monitoring for flexible power supply supervision
  • Watchdog timer prevents system lock-ups
  • Low quiescent current consumption for power efficiency
  • Wide operating voltage range for compatibility with various systems
  • Small package size enables space-saving designs

Disadvantages

  • Limited number of programmable options for voltage monitoring thresholds
  • Lack of advanced features compared to more specialized power supply supervisor ICs

Working Principles

The TPS3513DR operates by continuously monitoring the power supply voltage using an internal voltage reference and comparator. If the voltage falls below the programmed threshold, the reset output is activated, initiating a system reset. Additionally, the watchdog timer requires periodic input pulses to prevent system lock-ups. Failure to receive these pulses within the specified timeout period triggers a system reset.

Detailed Application Field Plans

The TPS3513DR finds applications in various fields, including:

  1. Embedded Systems: It ensures reliable operation of microcontrollers, ensuring proper system reset in case of power supply issues or software failures.
  2. Industrial Automation: The TPS3513DR provides power supply supervision and watchdog functionality in industrial control systems, preventing system lock-ups and ensuring continuous operation.
  3. Automotive Electronics: It is used in automotive applications to monitor and control power supply voltages, ensuring stable operation of critical systems such as engine control units (ECUs) and safety modules.

Detailed and Complete Alternative Models

  1. TPS3510DR: Similar to the TPS3513DR, but without the watchdog timer functionality.
  2. TPS3514DR: Offers additional features such as adjustable reset timeout period and power-on reset delay.
  3. MAX823R: An alternative IC with similar power supply monitoring and watchdog timer capabilities.

(Note: The above list is not exhaustive and there may be other alternative models available in the market.)

In conclusion, the TPS3513DR is a versatile integrated circuit that combines power supply supervision and watchdog timer functionality. Its programmable voltage monitoring and small package size make it suitable for various applications in embedded systems, industrial automation, and automotive electronics. While it offers several advantages, such as low quiescent current consumption and wide operating voltage range, it may have limitations in terms of programmability options and advanced features compared to specialized ICs.

แสดงรายการคำถามและคำตอบทั่วไป 10 ข้อที่เกี่ยวข้องกับการใช้ TPS3513DR ในโซลูชันทางเทคนิค

Sure! Here are 10 common questions and answers related to the application of TPS3513DR in technical solutions:

  1. Q: What is the TPS3513DR? A: The TPS3513DR is a power management IC (integrated circuit) that provides various functions such as voltage monitoring, power sequencing, and reset generation.

  2. Q: What are the typical applications of TPS3513DR? A: TPS3513DR is commonly used in industrial automation, telecommunications equipment, networking devices, and other systems that require reliable power management.

  3. Q: How does TPS3513DR help in power sequencing? A: TPS3513DR ensures that different power supplies in a system turn on and off in a specific order, preventing any potential damage or instability during power-up or power-down sequences.

  4. Q: Can TPS3513DR monitor multiple voltages simultaneously? A: Yes, TPS3513DR can monitor up to three different voltages simultaneously, providing accurate voltage monitoring and fault detection capabilities.

  5. Q: Does TPS3513DR have built-in protection features? A: Yes, TPS3513DR includes overvoltage protection, undervoltage lockout, and thermal shutdown features to safeguard the system from abnormal operating conditions.

  6. Q: Can TPS3513DR generate a reset signal for microcontrollers or other devices? A: Absolutely, TPS3513DR has a dedicated reset output pin that can be used to generate a reset signal for connected devices during power-up or fault conditions.

  7. Q: Is TPS3513DR compatible with different communication interfaces? A: Yes, TPS3513DR supports both I2C and SMBus interfaces, allowing easy integration into systems with compatible communication protocols.

  8. Q: What is the operating voltage range of TPS3513DR? A: TPS3513DR operates within a wide voltage range of 2.7V to 18V, making it suitable for various power supply configurations.

  9. Q: Can TPS3513DR operate in harsh environments? A: Yes, TPS3513DR is designed to withstand extended temperature ranges and is capable of operating reliably in industrial or automotive applications.

  10. Q: Are there any evaluation boards or reference designs available for TPS3513DR? A: Yes, Texas Instruments provides evaluation modules and reference designs that can help engineers quickly prototype and integrate TPS3513DR into their systems.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.