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L7985TR
Product Overview
Category
L7985TR belongs to the category of voltage regulators.
Use
It is commonly used to regulate and stabilize voltage in electronic circuits.
Characteristics
- High precision voltage regulation
- Low dropout voltage
- Wide input voltage range
- Overcurrent and thermal protection
- Adjustable output voltage
Package
L7985TR comes in a TO-220 package, which is a widely used through-hole package for power semiconductors.
Essence
The essence of L7985TR lies in its ability to provide stable and regulated voltage output for various electronic applications.
Packaging/Quantity
L7985TR is typically packaged in reels or tubes, with quantities varying depending on the manufacturer's specifications.
Specifications
- Input Voltage Range: 4.75V to 28V
- Output Voltage Range: 1.2V to 20V
- Dropout Voltage: 350mV at 1A
- Maximum Output Current: 1.5A
- Quiescent Current: 100µA
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
L7985TR has the following pin configuration:
- VIN (Input Voltage)
- GND (Ground)
- VOUT (Output Voltage)
Functional Features
- High Precision Regulation: L7985TR provides precise voltage regulation, ensuring stable and accurate output.
- Low Dropout Voltage: The low dropout voltage allows the regulator to operate efficiently even when the input voltage is close to the desired output voltage.
- Overcurrent and Thermal Protection: The device incorporates protection mechanisms to prevent damage from excessive current or temperature.
- Adjustable Output Voltage: The output voltage can be adjusted within the specified range to meet the requirements of different applications.
Advantages and Disadvantages
Advantages
- High precision voltage regulation ensures stable performance.
- Low dropout voltage allows for efficient operation.
- Wide input voltage range provides flexibility in various applications.
- Overcurrent and thermal protection enhance reliability.
- Adjustable output voltage accommodates different requirements.
Disadvantages
- Limited maximum output current of 1.5A may not be suitable for high-power applications.
- Quiescent current of 100µA may contribute to power consumption in low-power applications.
Working Principles
L7985TR operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The feedback mechanism continuously monitors the output voltage and adjusts the pass transistor accordingly to maintain the desired voltage level.
Detailed Application Field Plans
L7985TR finds applications in various electronic systems, including but not limited to: - Power supplies - Battery-powered devices - Industrial control systems - Automotive electronics - Communication equipment
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to L7985TR include: - LM317 - LT1084 - ADP3339 - TPS7A47
These alternatives can be considered based on specific application requirements and availability.
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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van L7985TR in technische oplossingen
Sure! Here are 10 common questions and answers related to the application of L7985TR in technical solutions:
Q: What is L7985TR? A: L7985TR is a voltage regulator IC (integrated circuit) that provides a regulated output voltage from an input voltage source.
Q: What is the input voltage range for L7985TR? A: The input voltage range for L7985TR is typically between 4.75V and 38V.
Q: What is the output voltage range for L7985TR? A: The output voltage range for L7985TR can be adjusted from 0.8V to 20V.
Q: What is the maximum output current of L7985TR? A: The maximum output current of L7985TR is 5A.
Q: Can L7985TR operate in a wide temperature range? A: Yes, L7985TR is designed to operate in a wide temperature range, typically from -40°C to +125°C.
Q: Does L7985TR require any external components for operation? A: Yes, L7985TR requires a few external components such as input/output capacitors and resistors for voltage adjustment.
Q: Is L7985TR suitable for battery-powered applications? A: Yes, L7985TR is suitable for battery-powered applications as it has low quiescent current and supports low dropout voltage.
Q: Can L7985TR handle short-circuit conditions? A: Yes, L7985TR has built-in protection features like thermal shutdown and current limit, which help it handle short-circuit conditions.
Q: Can L7985TR be used in automotive applications? A: Yes, L7985TR is suitable for automotive applications as it meets the requirements of AEC-Q100 standard and has high reliability.
Q: What are some typical applications of L7985TR? A: Some typical applications of L7985TR include power supplies for industrial equipment, automotive systems, battery chargers, and LED lighting.
Please note that these answers are general and may vary depending on specific datasheet specifications and application requirements.