ISL78420AVEZ-T7A
Product Overview
Category
ISL78420AVEZ-T7A belongs to the category of integrated circuits (ICs).
Use
This product is commonly used in automotive applications, specifically for power management.
Characteristics
- High efficiency
- Wide input voltage range
- Low quiescent current
- Overvoltage and overcurrent protection
- Thermal shutdown protection
Package
ISL78420AVEZ-T7A is available in a small outline package (SOP) with exposed pad.
Essence
The essence of ISL78420AVEZ-T7A lies in its ability to efficiently manage power in automotive systems, ensuring reliable operation and protection against various electrical faults.
Packaging/Quantity
This product is typically packaged in reels and the quantity per reel may vary depending on the manufacturer's specifications.
Specifications
- Input Voltage Range: 4.5V to 40V
- Output Voltage Range: 0.8V to 5.5V
- Quiescent Current: 50µA
- Operating Temperature Range: -40°C to +125°C
- Maximum Switching Frequency: 2.2MHz
- Number of Pins: 20
Detailed Pin Configuration
- VIN: Input voltage pin
- PGND: Power ground pin
- SW: Switching node pin
- LX: Inductor connection pin
- FB: Feedback pin
- EN: Enable pin
- SS/TR: Soft-start/tracking pin
- VCC: Supply voltage pin
- AGND: Analog ground pin
- COMP: Compensation pin
- BST: Bootstrap pin
- PGND: Power ground pin
- PGND: Power ground pin
- PGND: Power ground pin
- PGND: Power ground pin
- PGND: Power ground pin
- PGND: Power ground pin
- PGND: Power ground pin
- PGND: Power ground pin
- PGND: Power ground pin
Functional Features
- High efficiency power conversion
- Overvoltage and overcurrent protection
- Thermal shutdown protection
- Soft-start and tracking capability
- Adjustable output voltage
- Wide input voltage range
Advantages and Disadvantages
Advantages
- High efficiency leads to reduced power dissipation
- Wide input voltage range allows for compatibility with various automotive systems
- Overvoltage and overcurrent protection ensure system safety
- Thermal shutdown protection prevents damage due to excessive heat
- Soft-start and tracking capability enable smooth power-up sequences
Disadvantages
- Limited output voltage range (0.8V to 5.5V)
- Higher cost compared to traditional linear regulators
Working Principles
ISL78420AVEZ-T7A operates as a buck converter, converting the higher input voltage to a lower output voltage using pulse-width modulation (PWM) techniques. The integrated circuit regulates the output voltage by adjusting the duty cycle of the switching transistor. It also incorporates various protection features to safeguard the system against faults such as overvoltage, overcurrent, and thermal issues.
Detailed Application Field Plans
ISL78420AVEZ-T7A finds extensive application in automotive systems, including:
- Electric power steering
- Infotainment systems
- Advanced driver-assistance systems (ADAS)
- Lighting control modules
- Engine control units (ECUs)
- Battery management systems (BMS)
Detailed and Complete Alternative Models
- ISL78220AVEZ-T7A
- ISL78320AVEZ-T7A
- ISL78520AVEZ-T7A
- ISL78620AVEZ-T7A
These alternative models offer similar functionality and characteristics, providing flexibility in design choices for power management in automotive applications.
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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av ISL78420AVEZ-T7A i tekniska lösningar
Sure! Here are 10 common questions and answers related to the application of ISL78420AVEZ-T7A in technical solutions:
Q: What is ISL78420AVEZ-T7A? A: ISL78420AVEZ-T7A is a high-performance, automotive-grade voltage regulator designed for use in various technical solutions.
Q: What is the input voltage range of ISL78420AVEZ-T7A? A: The input voltage range of ISL78420AVEZ-T7A is typically from 4.5V to 40V.
Q: What is the output voltage range of ISL78420AVEZ-T7A? A: The output voltage range of ISL78420AVEZ-T7A can be adjusted from 0.8V to 36V.
Q: What is the maximum output current of ISL78420AVEZ-T7A? A: The maximum output current of ISL78420AVEZ-T7A is typically 4A.
Q: Is ISL78420AVEZ-T7A suitable for automotive applications? A: Yes, ISL78420AVEZ-T7A is specifically designed for automotive applications and meets the necessary requirements.
Q: Does ISL78420AVEZ-T7A have built-in protection features? A: Yes, ISL78420AVEZ-T7A includes various protection features such as overcurrent protection, thermal shutdown, and reverse battery protection.
Q: Can ISL78420AVEZ-T7A operate in a wide temperature range? A: Yes, ISL78420AVEZ-T7A is designed to operate reliably in a wide temperature range, typically from -40°C to +125°C.
Q: What is the typical efficiency of ISL78420AVEZ-T7A? A: The typical efficiency of ISL78420AVEZ-T7A is around 90%, depending on the input and output voltage conditions.
Q: Can ISL78420AVEZ-T7A be used in battery-powered applications? A: Yes, ISL78420AVEZ-T7A can be used in battery-powered applications as it supports a wide input voltage range and has low quiescent current.
Q: Are there any evaluation boards or reference designs available for ISL78420AVEZ-T7A? A: Yes, Intersil provides evaluation boards and reference designs for ISL78420AVEZ-T7A to help with the development and implementation of technical solutions.
Please note that the answers provided here are general and may vary based on specific application requirements. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information.