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ISL97644IRZ-T
Product Overview
Category: Integrated Circuit (IC)
Use: LED Driver
Characteristics: - High efficiency - Wide input voltage range - Dimming control capabilities - Thermal protection - Overvoltage protection
Package: IRZ-T package
Essence: The ISL97644IRZ-T is a high-efficiency LED driver IC designed for driving multiple strings of LEDs in backlighting applications.
Packaging/Quantity: The ISL97644IRZ-T is available in a small form factor IRZ-T package. The quantity per reel is typically 2500 units.
Specifications
- Input Voltage Range: 4.5V to 26V
- Output Voltage Range: Up to 40V
- Maximum Output Current: 1.2A
- Dimming Control: PWM or DC voltage control
- Operating Temperature Range: -40°C to +85°C
Pin Configuration
The ISL97644IRZ-T has the following pin configuration:
```
| | | U1 | |___________|
Pin 1: VIN Pin 2: GND Pin 3: VOUT Pin 4: DIM Pin 5: FB Pin 6: EN Pin 7: NC Pin 8: NC ```
Functional Features
- High efficiency conversion of input voltage to output voltage for LED driving.
- Dimming control allows adjustment of LED brightness.
- Thermal protection prevents damage due to excessive temperature.
- Overvoltage protection safeguards the LEDs from voltage spikes.
Advantages and Disadvantages
Advantages: - High efficiency results in lower power consumption. - Wide input voltage range allows compatibility with various power sources. - Dimming control enables flexible brightness adjustment. - Thermal and overvoltage protection enhance reliability.
Disadvantages: - Limited maximum output current may restrict usage in high-power applications. - Requires external components for proper operation.
Working Principles
The ISL97644IRZ-T operates by converting the input voltage to a regulated output voltage suitable for driving LEDs. It utilizes a high-efficiency switching regulator to achieve this conversion. The dimming control feature allows adjustment of the LED brightness by varying the duty cycle of the PWM signal or the DC voltage applied to the DIM pin.
Detailed Application Field Plans
The ISL97644IRZ-T is commonly used in various backlighting applications, including: - LCD monitors - TVs - Automotive displays - Industrial displays - Signage
Detailed and Complete Alternative Models
Some alternative models that can be considered as alternatives to the ISL97644IRZ-T are: - LT3763 - TPS92661 - MAX16834
These models offer similar functionality and can be used as replacements depending on specific requirements.
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Καταγράψτε 10 συνήθεις ερωτήσεις και απαντήσεις που σχετίζονται με την εφαρμογή του ISL97644IRZ-T σε τεχνικές λύσεις
Sure! Here are 10 common questions and answers related to the application of ISL97644IRZ-T in technical solutions:
Q: What is ISL97644IRZ-T? A: ISL97644IRZ-T is a high-efficiency, 4-channel LED driver designed for driving LEDs in LCD backlighting applications.
Q: What is the input voltage range of ISL97644IRZ-T? A: The input voltage range of ISL97644IRZ-T is typically between 4.5V and 26V.
Q: How many channels does ISL97644IRZ-T support? A: ISL97644IRZ-T supports up to 4 independent LED channels.
Q: What is the maximum current per channel that ISL97644IRZ-T can handle? A: ISL97644IRZ-T can handle a maximum current of 60mA per channel.
Q: Can ISL97644IRZ-T be used for dimming LED lights? A: Yes, ISL97644IRZ-T supports PWM dimming control for each channel.
Q: Does ISL97644IRZ-T have built-in protection features? A: Yes, ISL97644IRZ-T has built-in overvoltage, overcurrent, and thermal protection features.
Q: What is the operating temperature range of ISL97644IRZ-T? A: The operating temperature range of ISL97644IRZ-T is typically between -40°C and +85°C.
Q: Can ISL97644IRZ-T be used in automotive applications? A: Yes, ISL97644IRZ-T is suitable for automotive applications as it meets the AEC-Q100 standard.
Q: What is the package type of ISL97644IRZ-T? A: ISL97644IRZ-T is available in a 24-lead QFN package.
Q: Is there any evaluation board available for ISL97644IRZ-T? A: Yes, Intersil provides an evaluation board (ISL97644EVAL1Z) for ISL97644IRZ-T to facilitate testing and development.
Please note that these answers are general and may vary depending on the specific application and requirements. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed information.