IS31LT3350-V1SDLS2-TR

Product Overview

Category

IS31LT3350-V1SDLS2-TR belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for driving LED backlights in LCD displays.

Characteristics

• High efficiency
• Wide input voltage range
• Low standby current
• Adjustable output current
• Overvoltage protection
• Thermal shutdown protection

Package

IS31LT3350-V1SDLS2-TR is available in a small outline package (SOP) with 8 pins.

Essence

The essence of this product lies in its ability to efficiently drive LED backlights, ensuring optimal performance and energy savings in LCD displays.

Packaging/Quantity

IS31LT3350-V1SDLS2-TR is typically packaged in reels and comes in quantities of 3000 units per reel.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Current Range: 10mA to 100mA
• Operating Temperature Range: -40°C to +85°C
• Dimming Control: PWM or DC voltage control
• Efficiency: Up to 92%
• Standby Current: <1µA

Detailed Pin Configuration

1. VIN: Input voltage
2. GND: Ground
3. DIM: Dimming control input
4. FB: Feedback pin for regulating output current
5. EN: Enable pin for turning on/off the device
6. VOUT: Output voltage
7. NC: No connection
8. VCC: Supply voltage for internal circuitry

Functional Features

• Wide input voltage range allows compatibility with various power sources.
• Adjustable output current enables precise control of LED brightness.
• Dimming control options (PWM or DC voltage) offer flexibility in adjusting backlight intensity.
• Overvoltage protection safeguards the device and connected LEDs from excessive voltage.
• Thermal shutdown protection prevents damage due to overheating.

Advantages

• High efficiency results in reduced power consumption and longer battery life.
• Wide input voltage range allows for versatile application in different systems.
• Low standby current minimizes energy wastage during idle periods.
• Adjustable output current provides fine-tuning of LED brightness.
• Overvoltage and thermal protections enhance the reliability and durability of the product.

Disadvantages

• Limited output current range may not be suitable for high-power LED applications.
• Requires external dimming control circuitry for precise brightness adjustment.

Working Principles

IS31LT3350-V1SDLS2-TR operates as a constant current LED driver. It regulates the output current based on the feedback received from the FB pin, ensuring a consistent and stable current flow through the connected LEDs. The dimming control input (DIM) allows for adjusting the LED brightness using either PWM or DC voltage control methods.

Detailed Application Field Plans

IS31LT3350-V1SDLS2-TR finds extensive use in various applications, including: - LCD monitors - Automotive displays - Industrial control panels - Portable devices with LCD screens - Backlit keyboards

Detailed and Complete Alternative Models

1. IS31LT3350-V1SDLS2-TR: 10mA to 100mA output current range
2. IS31LT3350-V1SDLS3-TR: 20mA to 200mA output current range
3. IS31LT3350-V1SDLS4-TR: 30mA to 300mA output current range
4. IS31LT3350-V1SDLS5-TR: 40mA to 400mA output current range

These alternative models offer varying output current ranges to cater to different LED backlighting requirements.

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