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TPS3850H12DRCR
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TPS3850H12DRCR

Product Overview

Category

The TPS3850H12DRCR belongs to the category of voltage supervisors.

Use

This product is primarily used for monitoring and supervising voltage levels in electronic systems.

Characteristics

  • Voltage supervision range: 0.4V to 5.5V
  • Adjustable threshold voltage
  • Low quiescent current consumption
  • Wide operating temperature range: -40°C to 125°C
  • Small package size: 6-pin SON (2mm x 2mm)

Package and Quantity

The TPS3850H12DRCR is available in a small-outline no-lead (SON) package. It is supplied in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

  • Supply voltage range: 1.8V to 5.5V
  • Threshold voltage accuracy: ±1%
  • Quiescent current: 3µA (typical)
  • Power-on reset delay time: 100ms (typical)
  • Watchdog timer timeout period: 1.6s (typical)
  • Operating temperature range: -40°C to 125°C

Pin Configuration

The TPS3850H12DRCR has a 6-pin SON package with the following pin configuration:

  1. GND (Ground)
  2. VDD (Supply Voltage)
  3. RESET (Reset Output)
  4. MR (Manual Reset Input)
  5. WD (Watchdog Timer Input)
  6. NC (No Connection)

Functional Features

  • Voltage monitoring: The TPS3850H12DRCR continuously monitors the supply voltage and generates a reset signal when it falls below a programmable threshold.
  • Manual reset input: The MR pin allows for manual resetting of the device.
  • Watchdog timer: The WD pin is used to monitor the system's activity. If no activity is detected within a specified timeout period, a reset signal is generated.
  • Power-on reset delay: The device ensures a stable power supply before releasing the reset signal.

Advantages and Disadvantages

Advantages

  • Wide operating voltage range allows for compatibility with various systems.
  • Adjustable threshold voltage provides flexibility in voltage monitoring.
  • Low quiescent current consumption minimizes power consumption.
  • Small package size enables space-saving designs.

Disadvantages

  • Limited quantity per reel may require frequent reordering for large-scale production.
  • No connection (NC) pin may be unused in some applications, resulting in wasted pins.

Working Principles

The TPS3850H12DRCR operates by comparing the supply voltage with a programmable threshold voltage. When the supply voltage falls below this threshold, the device generates a reset signal. Additionally, the watchdog timer monitors system activity, and if no activity is detected within the specified timeout period, a reset signal is also generated.

Application Field Plans

The TPS3850H12DRCR finds application in various electronic systems that require reliable voltage monitoring and supervision. Some potential fields of application include:

  1. Industrial automation systems
  2. Automotive electronics
  3. Power management systems
  4. Battery-powered devices
  5. Embedded systems

Alternative Models

For those seeking alternative options, the following models offer similar functionality:

  1. TPS3839K33DBVR
  2. MAX809SEUR+T
  3. ADM708TARZ
  4. MCP130T-315I/TT
  5. TL7705ACP

These models provide comparable voltage supervision capabilities and can be considered as alternatives to the TPS3850H12DRCR.

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技術ソリューションにおける TPS3850H12DRCR の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of TPS3850H12DRCR in technical solutions:

  1. Q: What is the TPS3850H12DRCR? A: The TPS3850H12DRCR is a voltage supervisor and reset IC designed for monitoring power supply voltages in various applications.

  2. Q: What is the operating voltage range of TPS3850H12DRCR? A: The TPS3850H12DRCR operates within a voltage range of 1.6V to 6.5V.

  3. Q: What is the purpose of using TPS3850H12DRCR in a technical solution? A: The TPS3850H12DRCR is used to monitor power supply voltages and generate a reset signal when the voltage falls below a certain threshold, ensuring proper system operation.

  4. Q: Can TPS3850H12DRCR be used in battery-powered applications? A: Yes, the TPS3850H12DRCR can be used in battery-powered applications as it has a low quiescent current and operates at low voltages.

  5. Q: How many voltage thresholds can be set with TPS3850H12DRCR? A: The TPS3850H12DRCR allows for two voltage thresholds to be set, one for the main voltage monitor and another for the backup voltage monitor.

  6. Q: Does TPS3850H12DRCR have an adjustable reset delay time? A: Yes, the TPS3850H12DRCR provides an adjustable reset delay time through an external capacitor.

  7. Q: Can TPS3850H12DRCR tolerate voltage spikes or transients? A: Yes, the TPS3850H12DRCR has built-in hysteresis and can tolerate voltage spikes or transients without generating false reset signals.

  8. Q: What is the typical power-on reset time of TPS3850H12DRCR? A: The typical power-on reset time of TPS3850H12DRCR is 20ms.

  9. Q: Can TPS3850H12DRCR be used in automotive applications? A: Yes, the TPS3850H12DRCR is qualified for automotive applications and meets the necessary standards.

  10. Q: Does TPS3850H12DRCR have any additional features? A: Yes, the TPS3850H12DRCR includes a watchdog timer and a manual reset input for added functionality in system monitoring and control.

Please note that these answers are general and may vary depending on the specific application and requirements.