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ZR78L05GTA
Product Overview
Category
The ZR78L05GTA belongs to the category of voltage regulators.
Use
It is primarily used for regulating voltage in electronic circuits.
Characteristics
- Input Voltage Range: 7V to 35V
- Output Voltage: 5V
- Maximum Output Current: 100mA
- Low Dropout Voltage: 1.5V (typical)
- Operating Temperature Range: -40°C to +125°C
- Package Type: TO-92
- Essence: Linear voltage regulator
Packaging/Quantity
The ZR78L05GTA is typically packaged in reels or tubes, with a quantity of 1000 units per reel/tube.
Specifications
- Input Voltage Range: 7V to 35V
- Output Voltage: 5V
- Output Current: 100mA (maximum)
- Dropout Voltage: 1.5V (typical)
- Line Regulation: ±0.2% (typical)
- Load Regulation: ±0.4% (typical)
- Quiescent Current: 5mA (typical)
- Ripple Rejection Ratio: 60dB (typical)
- Operating Temperature Range: -40°C to +125°C
- Package Type: TO-92
Detailed Pin Configuration
The ZR78L05GTA has three pins:
- Input (Vin): This pin is connected to the input voltage source.
- Ground (GND): This pin is connected to the ground reference.
- Output (Vout): This pin provides the regulated output voltage.
Functional Features
- Voltage Regulation: The ZR78L05GTA ensures a stable and constant output voltage of 5V, regardless of variations in the input voltage.
- Low Dropout Voltage: With a low dropout voltage of 1.5V, the regulator can maintain a stable output even when the input voltage is close to the desired output voltage.
- Overcurrent Protection: The device incorporates overcurrent protection to prevent damage in case of excessive load current.
- Thermal Shutdown: It includes a thermal shutdown feature that protects the device from overheating.
Advantages and Disadvantages
Advantages
- Compact Size: The TO-92 package makes it suitable for space-constrained applications.
- Easy to Use: The three-pin configuration simplifies the integration into electronic circuits.
- Low Dropout Voltage: Enables efficient regulation even with low input-output voltage differentials.
Disadvantages
- Limited Output Current: The maximum output current of 100mA may not be sufficient for high-power applications.
- Heat Dissipation: As a linear regulator, it dissipates excess power as heat, requiring proper heat sinking in high-power applications.
Working Principles
The ZR78L05GTA is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the reference voltage (5V) with the feedback voltage obtained from a voltage divider network connected to the output. Any difference between the two voltages is amplified and used to control the series pass transistor, adjusting its resistance to maintain a constant output voltage.
Detailed Application Field Plans
The ZR78L05GTA finds application in various electronic devices and systems, including but not limited to: - Power supplies for microcontrollers and other digital ICs - Battery-powered devices requiring a stable 5V supply - Automotive electronics - Industrial control systems - Consumer electronics
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to the ZR78L05GTA include: - LM7805: A widely used linear voltage regulator with similar specifications and pin configuration. - MC78L05: Another popular choice for 5V voltage regulation. - AMS1117-5.0: A low dropout linear regulator with a 5V output.
These alternative models can be considered based on specific requirements and availability.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de ZR78L05GTA en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of ZR78L05GTA in technical solutions:
Q: What is ZR78L05GTA? A: ZR78L05GTA is a voltage regulator IC (integrated circuit) that provides a fixed 5V output voltage.
Q: What is the input voltage range for ZR78L05GTA? A: The input voltage range for ZR78L05GTA is typically between 7V and 35V.
Q: What is the maximum output current of ZR78L05GTA? A: The maximum output current of ZR78L05GTA is 100mA.
Q: Can ZR78L05GTA handle higher input voltages than its specified range? A: No, exceeding the specified input voltage range can damage the ZR78L05GTA. It is important to stay within the recommended limits.
Q: Is ZR78L05GTA suitable for battery-powered applications? A: Yes, ZR78L05GTA can be used in battery-powered applications as it has low quiescent current and low dropout voltage.
Q: Does ZR78L05GTA require any external components for operation? A: Yes, ZR78L05GTA requires input and output capacitors for stability and noise filtering. Refer to the datasheet for recommended values.
Q: Can ZR78L05GTA handle short-circuit conditions? A: ZR78L05GTA has built-in short-circuit protection, which allows it to withstand short-circuit conditions without getting damaged.
Q: Can ZR78L05GTA be used in automotive applications? A: Yes, ZR78L05GTA can be used in automotive applications as it is designed to operate in a wide temperature range and has good thermal characteristics.
Q: Can multiple ZR78L05GTA regulators be connected in parallel to increase the output current? A: It is generally not recommended to connect voltage regulators in parallel, as it can lead to stability issues and unequal load sharing. Consider using a higher-rated regulator instead.
Q: Are there any alternative voltage regulators similar to ZR78L05GTA? A: Yes, there are several alternatives available from different manufacturers, such as LM7805, MC78L05, and UA78L05, which provide similar functionality.
Please note that these answers are general and may vary depending on the specific datasheet and application requirements of ZR78L05GTA.