TLVH431CDCKTG4

Product Overview

• Category: Integrated Circuits (ICs)
• Use: Voltage References
• Characteristics:
  • Adjustable Precision Shunt Regulator
  • Low Output Voltage Tolerance
  • Low Temperature Drift
  • Low Dynamic Output Impedance
• Package: SC-70 (SOT-323)
• Essence: TLVH431CDCKTG4 is a voltage reference IC used for precision shunt regulation in various electronic circuits.
• Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

• Reference Voltage Range: 1.24V to 16V
• Output Current Range: 1mA to 100mA
• Operating Temperature Range: -40°C to +125°C
• Input Voltage Range: -0.3V to Vref + 6V
• Temperature Coefficient: 50ppm/°C (typical)

Detailed Pin Configuration

The TLVH431CDCKTG4 has the following pin configuration:

1. Anode (A): Connected to the reference voltage input.
2. Cathode (K): Connected to the ground or negative supply voltage.
3. Adjust (ADJ): Connected to an external resistor divider network to set the desired output voltage.

Functional Features

• Precision Voltage Reference: TLVH431CDCKTG4 provides a highly accurate and stable reference voltage for precise voltage regulation in electronic circuits.
• Adjustable Output Voltage: The output voltage can be easily adjusted by connecting an external resistor divider network to the ADJ pin.
• Low Output Voltage Tolerance: The IC ensures a low tolerance on the output voltage, resulting in improved circuit performance.
• Low Temperature Drift: TLVH431CDCKTG4 exhibits low temperature drift, making it suitable for applications requiring stable voltage references over a wide temperature range.
• Low Dynamic Output Impedance: The IC has a low dynamic output impedance, enabling it to maintain a stable output voltage even under varying load conditions.

Advantages and Disadvantages

Advantages: - High precision and stability in voltage regulation - Adjustable output voltage - Low output voltage tolerance - Low temperature drift - Low dynamic output impedance

Disadvantages: - Limited output current capability (up to 100mA) - Requires an external resistor divider network for voltage adjustment

Working Principles

TLVH431CDCKTG4 operates as a shunt regulator, maintaining a constant reference voltage between the Anode (A) and Cathode (K) pins. By connecting an external resistor divider network to the Adjust (ADJ) pin, the desired output voltage can be set. The IC compares the reference voltage with the divided voltage and adjusts the current flowing through the shunt resistor to maintain a stable output voltage.

Detailed Application Field Plans

TLVH431CDCKTG4 finds applications in various electronic circuits that require precise voltage regulation. Some common application areas include:

1. Power Supplies: Used as a voltage reference in linear power supplies to ensure stable output voltages.
2. Battery Management Systems: Employed in battery charging circuits to regulate the charging voltage accurately.
3. Audio Amplifiers: Utilized as a voltage reference in audio amplifier circuits to maintain consistent signal levels.
4. Instrumentation: Integrated into measurement and control systems to provide accurate voltage references for sensor calibration.

Detailed and Complete Alternative Models

Some alternative models to TLVH431CDCKTG4 that offer similar functionality are:

1. TL431: A widely used adjustable precision shunt regulator with similar specifications and pin configuration.
2. LM4040: A precision voltage reference IC available in various output voltage options.
3. REF3030: Low-power, low-dropout voltage reference with adjustable output voltage.

These alternative models can be considered based on specific application requirements and availability.