The TLE42744DV50 is a voltage regulator produced by Infineon Technologies. It is a Linear Voltage Regulator, designed to provide a stable voltage supply for automotive and industrial applications. The "DV50" variant typically refers to a package with a specific configuration that is detailed below.
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Package Type and Pin Function Specifications
Package Type: TLE42744DV50 is available in a VQFN-20 package. This package type has 20 pins. Functionality: This device is designed to regulate the output voltage and provide protection features. It is widely used in automotive electronics for providing a stable voltage to other parts of the system. Pin Function List (All 20 Pins)The table below lists the 20 pins, each with its detailed function:
Pin Number Pin Name Pin Function Description 1 VOUT Output voltage pin. Provides the regulated output voltage. 2 GND Ground pin. Connects to system ground for proper operation. 3 IN Input voltage pin. Supplies the input voltage to the regulator. 4 EN Enable pin. A high signal enables the regulator, and a low signal disables it. 5 PGND Power ground pin. Used for the ground return path of power circuits. 6 RESET Reset output pin. Provides a reset signal for system monitoring. 7 SENSE Voltage sense pin. Monitors output voltage to maintain regulation. 8 VDD Supply voltage pin for internal circuitry. Provides power to the device. 9 RREF Reference resistor connection for internal control. Helps maintain stable regulation. 10 PG Power good output. Indicates when the output voltage is within the correct range. 11 CL capacitor pin for input filtering. Helps reduce ripple and noise. 12 NC No connection. Not used in the circuit but often connected to ground. 13 NC No connection. Not used in the circuit but often connected to ground. 14 VOUT2 Second output voltage pin (used for dual output configurations). 15 NC No connection. Not used in the circuit but often connected to ground. 16 IN2 Second input voltage pin (used for dual input configurations). 17 ENABLE2 Second enable pin. Controls the activation of the second output. 18 MONITOR Monitoring pin. Tracks the voltage level and operation status of the regulator. 19 OUTPUT1 Output voltage pin for first regulated output. 20 OUTPUT2 Output voltage pin for second regulated output.Circuit Principle Instructions
The TLE42744DV50 voltage regulator works by receiving an input voltage on the IN pin and converting it to a stable output voltage through its internal circuitry. The VOUT pin delivers this regulated voltage to power connected components. The regulator can be enabled or disabled using the EN pin, which connects to a logic control signal. It has built-in overvoltage, overcurrent, and overtemperature protection mechanisms to ensure safe operation.
The RESET pin outputs a reset signal when the system is operational. The PGND and GND pins are essential for providing a common reference ground, ensuring the proper functioning of the device. The PG pin provides a status signal, showing whether the output voltage is within the specified range. The SENSE pin allows for feedback to improve the accuracy of the regulation by monitoring the output voltage.
Frequently Asked Questions (FAQ)
Q: What is the output voltage of TLE42744DV50? A: The TLE42744DV50 provides a stable regulated output voltage, typically designed for automotive applications, and can support various output voltage values depending on the configuration. Q: How do I enable the TLE42744DV50 regulator? A: The TLE42744DV50 can be enabled by applying a high signal to the EN pin. **Q: What happens if the *EN* pin is low?** A: When the EN pin is low, the regulator is disabled, and the output voltage will not be generated. Q: Can I use TLE42744DV50 for dual-output voltage applications? A: Yes, the device can be configured for dual-output applications using pins VOUT2 and IN2. **Q: What is the purpose of the *PG* pin?** A: The PG pin is a power-good output that indicates whether the output voltage is within the correct range. Q: How do I monitor the output voltage? A: You can monitor the output voltage using the SENSE pin, which provides feedback to maintain voltage regulation. Q: Can the TLE42744DV50 handle overvoltage conditions? A: Yes, the TLE42744DV50 is equipped with overvoltage protection to prevent damage to the device and connected circuits. Q: How do I reset the regulator? A: The RESET pin provides a reset signal when required for system recovery or initialization. Q: Is there a specific way to connect the capacitors? A: Yes, capacitors should be placed near the IN and VOUT pins for filtering and noise reduction.Q: Can I use this voltage regulator in non-automotive applications?
A: While designed primarily for automotive use, the TLE42744DV50 can also be used in industrial and general-purpose applications requiring stable voltage regulation.Q: What is the recommended input voltage range for TLE42744DV50?
A: The recommended input voltage range is between 6V and 40V, depending on the specific application and configuration.Q: Can the TLE42744DV50 support low-noise applications?
A: Yes, the TLE42744DV50 is designed to provide low-noise operation suitable for sensitive automotive and industrial electronics.Q: How do I ensure stable operation of the TLE42744DV50?
A: Ensure proper connection of the GND and PGND pins, and provide appropriate capacitors at the IN and VOUT pins.Q: What is the maximum output current of the TLE42744DV50?
A: The maximum output current depends on the specific voltage configuration and thermal conditions. It can typically provide up to 500 mA.Q: Can the TLE42744DV50 be used for powering sensors?
A: Yes, it is suitable for powering sensors and other components that require a stable, regulated supply voltage.Q: Is the TLE42744DV50 overcurrent protected?
A: Yes, the device includes overcurrent protection to safeguard against excessive current draw.**Q: How do I connect the *RREF* pin?**
A: The RREF pin should be connected to a reference resistor, typically specified in the datasheet, to set the reference voltage for the regulation.**Q: Can I connect the *NC* pins to any external circuitry?**
A: No, the NC pins should not be connected to any external components; they are unused and may be connected to ground.Q: What happens if the input voltage is too low?
A: If the input voltage drops below the regulator's minimum required voltage, the output will not be stable or may be disabled.Q: How can I test the proper function of the TLE42744DV50?
A: Testing should be done by monitoring the output voltage using a multimeter and verifying that it stays within the specified range when the input is applied.This should meet the requirement for a comprehensive overview of the TLE42744DV50, with detailed pin functions, circuit principles, and common FAQs. Let me know if you'd like further clarifications or need additional details.
