ISL97653AIRZ-T

Product Overview

Category: Integrated Circuit (IC)

Use: LED Driver

Characteristics: - High efficiency - Wide input voltage range - Dimming control - Over-temperature protection - Short-circuit protection

Package: QFN (Quad Flat No-Lead)

Essence: The ISL97653AIRZ-T is a high-efficiency LED driver IC designed for driving LEDs in backlighting applications.

Packaging/Quantity: The ISL97653AIRZ-T is available in a QFN package and is typically sold in reels of 2500 units.

Specifications

Input Voltage Range: 4.5V to 26V
Output Current Range: Up to 1.5A
Efficiency: Up to 95%
Dimming Control: PWM (Pulse Width Modulation)
Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL97653AIRZ-T has the following pin configuration:

VIN: Input voltage
GND: Ground
EN: Enable pin
DIM: Dimming control input
FB: Feedback pin
VOUT: Output voltage
SW: Switch node
LX: Inductor connection

Functional Features

High efficiency conversion of input voltage to output voltage for LED driving
Dimming control allows adjustment of LED brightness
Over-temperature protection prevents damage due to excessive heat
Short-circuit protection safeguards against LED failures

Advantages and Disadvantages

Advantages: - High efficiency results in lower power consumption - Wide input voltage range allows compatibility with various power sources - Dimming control provides flexibility in adjusting LED brightness - Over-temperature and short-circuit protection enhance reliability

Disadvantages: - Limited output current range may not be suitable for high-power LED applications - QFN package may require specialized equipment for soldering and rework

Working Principles

The ISL97653AIRZ-T operates by converting the input voltage to a regulated output voltage suitable for driving LEDs. It uses a high-efficiency switching regulator topology to achieve this conversion. The dimming control input allows adjustment of the LED brightness by modulating the duty cycle of the PWM signal. Over-temperature and short-circuit protection mechanisms ensure safe operation under abnormal conditions.

Detailed Application Field Plans

The ISL97653AIRZ-T is commonly used in various backlighting applications, including: - LCD monitors and televisions - Automotive displays - Industrial control panels - Portable electronic devices

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the ISL97653AIRZ-T are: - LT3763 - TPS61165 - AP3031

These models offer similar functionality and can be used as replacements depending on specific requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ISL97653AIRZ-T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of ISL97653AIRZ-T in technical solutions:

Question: What is ISL97653AIRZ-T?
Answer: ISL97653AIRZ-T is a high-efficiency, 6-channel LED driver designed for driving backlight LEDs in LCD displays.
Question: What is the input voltage range supported by ISL97653AIRZ-T?
Answer: The input voltage range supported by ISL97653AIRZ-T is typically between 4.5V and 26V.
Question: How many channels does ISL97653AIRZ-T support?
Answer: ISL97653AIRZ-T supports up to 6 channels, allowing it to drive multiple backlight LEDs simultaneously.
Question: What is the maximum current per channel that ISL97653AIRZ-T can handle?
Answer: ISL97653AIRZ-T can handle a maximum current of 120mA per channel.
Question: Can ISL97653AIRZ-T be used in automotive applications?
Answer: Yes, ISL97653AIRZ-T is suitable for automotive applications as it operates over a wide temperature range and has built-in protection features.
Question: Does ISL97653AIRZ-T support PWM dimming?
Answer: Yes, ISL97653AIRZ-T supports PWM dimming, allowing precise control of the backlight brightness.
Question: Can ISL97653AIRZ-T be used with different types of LEDs?
Answer: Yes, ISL97653AIRZ-T is compatible with various types of LEDs, including white, RGB, and multi-color LEDs.
Question: Does ISL97653AIRZ-T have any built-in protection features?
Answer: Yes, ISL97653AIRZ-T has built-in protection features such as overvoltage protection, thermal shutdown, and LED open/short detection.
Question: What is the typical efficiency of ISL97653AIRZ-T?
Answer: The typical efficiency of ISL97653AIRZ-T is around 90%, ensuring minimal power loss during operation.
Question: Can ISL97653AIRZ-T be used in battery-powered devices?
Answer: Yes, ISL97653AIRZ-T can be used in battery-powered devices as it operates at low quiescent current and supports a wide input voltage range.

Please note that these answers are general and may vary depending on the specific application and requirements.