Diodes Incorporated
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ZTL431AFTA
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ZTL431AFTA

Product Overview

Category

ZTL431AFTA belongs to the category of voltage references.

Use

It is primarily used as a precision shunt regulator.

Characteristics

  • High accuracy and stability
  • Low temperature coefficient
  • Adjustable output voltage
  • Low dynamic impedance
  • Wide operating current range

Package

ZTL431AFTA is available in a TO-92 package.

Essence

The essence of ZTL431AFTA is its ability to provide a stable reference voltage for various applications.

Packaging/Quantity

It is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

  • Reference Voltage Range: 2.5V to 36V
  • Operating Current Range: 1mA to 100mA
  • Temperature Coefficient: ±50ppm/°C
  • Output Voltage Tolerance: ±0.4%
  • Maximum Cathode Current: 150mA
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

ZTL431AFTA has three pins:

  1. Anode (A): Connected to the positive supply voltage.
  2. Cathode (K): Connected to the load or ground.
  3. Reference (R): Provides the stable reference voltage.

Functional Features

  • Voltage Regulation: ZTL431AFTA maintains a constant output voltage regardless of input variations.
  • Adjustable Output: The reference voltage can be adjusted using external resistors.
  • Current Limiting: It provides protection against excessive load currents.
  • Temperature Compensation: The device compensates for temperature changes to maintain accuracy.

Advantages and Disadvantages

Advantages

  • High precision and stability
  • Easy to use and adjust
  • Low cost
  • Wide operating temperature range

Disadvantages

  • Limited maximum cathode current
  • Requires external components for precise voltage selection

Working Principles

ZTL431AFTA operates based on the principle of a shunt regulator. It compares the reference voltage at the R pin with the voltage across the load to regulate the output voltage. By adjusting the resistance connected to the R pin, the desired output voltage can be set.

Detailed Application Field Plans

ZTL431AFTA finds applications in various fields, including:

  1. Power Supplies: It is used for voltage regulation in power supply circuits.
  2. Battery Charging: ZTL431AFTA ensures precise charging voltage for batteries.
  3. Industrial Control Systems: It provides stable reference voltages for control systems.
  4. Automotive Electronics: Used in automotive applications for voltage regulation and monitoring.

Detailed and Complete Alternative Models

Some alternative models to ZTL431AFTA include:

  1. TL431: Similar functionality and specifications, available in different packages.
  2. LM4040: Precision voltage reference with fixed output voltage options.
  3. REF02: High-precision voltage reference with low temperature coefficient.

These alternatives offer similar features and can be chosen based on specific application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ZTL431AFTA v technických řešeních

Sure! Here are 10 common questions and answers related to the application of ZTL431AFTA in technical solutions:

  1. Q: What is ZTL431AFTA? A: ZTL431AFTA is a precision programmable shunt regulator that can be used for voltage reference, voltage regulation, and current limiting applications.

  2. Q: What is the operating voltage range of ZTL431AFTA? A: The operating voltage range of ZTL431AFTA is typically from 2.5V to 36V.

  3. Q: How does ZTL431AFTA provide voltage regulation? A: ZTL431AFTA compares the reference voltage with an external resistor divider network to regulate the output voltage.

  4. Q: Can ZTL431AFTA be used as a voltage reference? A: Yes, ZTL431AFTA can be used as a voltage reference by connecting the output pin directly to the load.

  5. Q: Is ZTL431AFTA suitable for low-power applications? A: Yes, ZTL431AFTA has a low quiescent current and is suitable for low-power applications.

  6. Q: Can ZTL431AFTA be used for current limiting? A: Yes, ZTL431AFTA can be used for current limiting by connecting it in series with the load and setting the desired current limit using an external resistor.

  7. Q: What is the temperature range of ZTL431AFTA? A: The temperature range of ZTL431AFTA is typically from -40°C to +125°C.

  8. Q: Does ZTL431AFTA require an external compensation capacitor? A: No, ZTL431AFTA does not require an external compensation capacitor as it is internally compensated.

  9. Q: Can ZTL431AFTA be used in automotive applications? A: Yes, ZTL431AFTA is suitable for automotive applications as it meets the AEC-Q100 qualification requirements.

  10. Q: What are the package options available for ZTL431AFTA? A: ZTL431AFTA is available in various package options including SOT-23, SOT-89, and TO-92.

Please note that these answers are general and may vary depending on the specific datasheet and application requirements of ZTL431AFTA.