CAT3647HV3-GT2

Product Overview

Category

CAT3647HV3-GT2 belongs to the category of integrated circuits (ICs).

Use

It is commonly used for controlling and driving LED backlighting in electronic devices such as smartphones, tablets, and laptops.

Characteristics

• High voltage capability
• Efficient LED current regulation
• Dimming control
• Low power consumption
• Compact size

Package

The CAT3647HV3-GT2 is available in a small outline package (SOP) with a specific pin configuration.

Essence

The essence of CAT3647HV3-GT2 lies in its ability to provide efficient and precise control over LED backlighting, enhancing the visual experience of electronic devices.

Packaging/Quantity

The product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input voltage range: 2.7V to 5.5V
• Output voltage range: 20V to 40V
• Maximum output current: 30mA
• Dimming control: PWM (Pulse Width Modulation)
• Operating temperature range: -40°C to +85°C

Pin Configuration

The CAT3647HV3-GT2 has the following pin configuration:

1. VDD (Power supply)
2. GND (Ground)
3. EN (Enable)
4. DIM (Dimming control input)
5. FB (Feedback)
6. LX (LED driver output)
7. NC (No connection)

Functional Features

• Efficient LED current regulation: The CAT3647HV3-GT2 ensures consistent and accurate LED brightness by regulating the LED current.
• Dimming control: It supports dimming control through the DIM pin, allowing users to adjust the backlight intensity according to their preferences.
• High voltage capability: The IC can handle a wide input voltage range, making it suitable for various electronic devices.
• Low power consumption: It consumes minimal power, contributing to energy efficiency and longer battery life.

Advantages and Disadvantages

Advantages

• Precise LED current regulation ensures consistent brightness levels.
• Dimming control allows customization of backlight intensity.
• High voltage capability makes it versatile for different applications.
• Compact size enables integration into small electronic devices.
• Low power consumption contributes to energy efficiency.

Disadvantages

• Limited maximum output current may not be suitable for high-power LED applications.
• Lack of certain advanced features found in more specialized LED drivers.

Working Principles

The CAT3647HV3-GT2 operates by converting the input voltage to a higher voltage required for driving LEDs. It regulates the LED current using feedback from the FB pin, ensuring consistent brightness. The dimming control feature adjusts the duty cycle of the PWM signal applied to the DIM pin, resulting in varying LED intensities.

Detailed Application Field Plans

The CAT3647HV3-GT2 is widely used in the following application fields:

1. Mobile devices: Smartphones, tablets, and portable media players benefit from its efficient LED backlight control.
2. Laptops and notebooks: Enhances display quality and power efficiency in these devices.
3. Automotive displays: Provides reliable LED backlighting control for instrument clusters and infotainment systems.
4. Industrial equipment: Used in control panels and displays for improved visibility and energy efficiency.

Detailed and Complete Alternative Models

1. CAT3647HV3-GT1: Similar to CAT3647HV3-GT2 but with a lower maximum output current of 20mA.
2. CAT3647HV3-GT3: Similar to CAT3647HV3-GT2 but with additional advanced features such as temperature compensation.

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