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ISL6842IB-T
Product Overview
Category: Integrated Circuit (IC)
Use: Power Management
Characteristics: - High-performance synchronous buck controller - Designed for low-voltage, high-frequency DC-DC converters - Provides precise regulation and control of the output voltage - Suitable for a wide range of applications
Package: 16-Lead SOIC package
Essence: The ISL6842IB-T is an integrated circuit that serves as a high-performance synchronous buck controller. It offers precise regulation and control of the output voltage in low-voltage, high-frequency DC-DC converters.
Packaging/Quantity: The ISL6842IB-T is available in a 16-Lead SOIC package. The quantity may vary depending on the supplier.
Specifications
- Input Voltage Range: 4.5V to 14V
- Output Voltage Range: 0.6V to VIN
- Maximum Duty Cycle: 95%
- Switching Frequency Range: 100kHz to 1MHz
- Operating Temperature Range: -40°C to +85°C
- Features adjustable soft-start, overcurrent protection, and thermal shutdown
Detailed Pin Configuration
The ISL6842IB-T has the following pin configuration:
- COMP: Compensation pin for external compensation network
- FB: Feedback pin for regulating the output voltage
- SS/TR: Soft-start/Tracking pin for controlling the startup behavior
- RT/CT: Timing resistor/capacitor connection for setting switching frequency
- GND: Ground reference for the IC
- VCC: Supply voltage input for the IC
- SYNC: Synchronization input for external clock synchronization
- BOOT: Bootstrap capacitor connection for driving the high-side MOSFET
- PHASE: Connection to the power stage high-side MOSFET
- LGATE: Connection to the low-side MOSFET gate driver
- PGND: Power ground reference for the IC
- VSENSE: Connection to the current sense resistor
- OCSET: Overcurrent protection threshold setting pin
- SS/TR: Soft-start/Tracking pin for controlling the startup behavior
- VIN: Input voltage supply connection
- LX: Connection to the power stage low-side MOSFET
Functional Features
- High-performance synchronous buck controller
- Wide input voltage range for versatile applications
- Precise regulation and control of the output voltage
- Adjustable soft-start for controlled startup behavior
- Overcurrent protection for enhanced safety
- Thermal shutdown to prevent overheating
Advantages and Disadvantages
Advantages: - High-performance and precise voltage regulation - Wide input voltage range allows for versatile applications - Adjustable soft-start feature for controlled startup - Overcurrent protection enhances safety - Thermal shutdown prevents overheating
Disadvantages: - Limited to low-voltage, high-frequency DC-DC converter applications - Requires external compensation network for stability
Working Principles
The ISL6842IB-T operates as a synchronous buck controller, regulating the output voltage in low-voltage, high-frequency DC-DC converters. It utilizes a feedback mechanism to compare the actual output voltage with the desired value and adjusts the duty cycle accordingly. By controlling the switching frequency and duty cycle, it achieves precise voltage regulation.
Detailed Application Field Plans
The ISL6842IB-T is suitable for various applications, including but not limited to: - Point-of-load (POL) power supplies - Telecom and networking equipment - Industrial automation systems - Consumer electronics - LED lighting
Detailed and Complete Alternative Models
Some alternative models that can be considered as alternatives to the ISL6842IB-T are: - LTC3851 - TPS54332 - MAX15062 - IR3899
These models offer similar functionalities and can be used as alternatives depending on specific requirements and design considerations.
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Liste 10 perguntas e respostas comuns relacionadas à aplicação de ISL6842IB-T em soluções técnicas
Sure! Here are 10 common questions and answers related to the application of ISL6842IB-T in technical solutions:
Q: What is ISL6842IB-T? A: ISL6842IB-T is a highly integrated PWM controller IC designed for power supply applications.
Q: What are the key features of ISL6842IB-T? A: Some key features include high voltage startup, adjustable switching frequency, soft-start capability, and overcurrent protection.
Q: What is the typical input voltage range for ISL6842IB-T? A: The typical input voltage range is between 4.5V and 75V.
Q: Can ISL6842IB-T be used in both buck and boost converter topologies? A: Yes, ISL6842IB-T can be used in both buck and boost converter topologies.
Q: How does ISL6842IB-T handle overcurrent protection? A: ISL6842IB-T has an integrated overcurrent protection feature that shuts down the output when the current exceeds a certain threshold.
Q: Can ISL6842IB-T operate at high temperatures? A: Yes, ISL6842IB-T is designed to operate reliably at high temperatures, typically up to 125°C.
Q: Does ISL6842IB-T support synchronization with an external clock? A: Yes, ISL6842IB-T supports synchronization with an external clock for multi-phase operation.
Q: What is the maximum switching frequency of ISL6842IB-T? A: The maximum switching frequency of ISL6842IB-T is typically 1MHz.
Q: Can ISL6842IB-T be used in battery-powered applications? A: Yes, ISL6842IB-T can be used in battery-powered applications as it has a wide input voltage range and low quiescent current.
Q: Is there any evaluation board available for ISL6842IB-T? A: Yes, Intersil provides an evaluation board for ISL6842IB-T, which can help in the development and testing of power supply solutions.
Please note that these answers are general and may vary depending on specific application requirements.