IS31BL3508B-STLS2-TR

Product Overview

Category

IS31BL3508B-STLS2-TR belongs to the category of integrated circuits (ICs) specifically designed for LED backlighting applications.

Use

This product is primarily used in electronic devices that require LED backlighting, such as LCD monitors, televisions, laptops, and automotive displays.

Characteristics

• High efficiency: The IS31BL3508B-STLS2-TR offers high power conversion efficiency, resulting in reduced energy consumption.
• Compact package: It comes in a small form factor package, making it suitable for space-constrained applications.
• Wide voltage range: The IC can operate within a wide input voltage range, providing flexibility in various electronic devices.
• Dimming control: It supports dimming control, allowing users to adjust the brightness of the LED backlight according to their preferences.

Package and Quantity

The IS31BL3508B-STLS2-TR is available in a surface-mount package. Each package contains one unit of the IC.

Specifications

• Input Voltage Range: 4.5V to 26V
• Output Current Range: 10mA to 100mA
• Dimming Control: PWM (Pulse Width Modulation)
• Operating Temperature Range: -40°C to 85°C
• Package Type: SOT23-6

Pin Configuration

The IS31BL3508B-STLS2-TR has six pins arranged as follows:

┌───┬───┐ │ 1 │ 2 │ ───┼───┼───┤ │ 3 │ 4 │ ───┼───┼───┤ │ 5 │ 6 │ └───┴───┘

1. VIN: Input voltage pin.
2. GND: Ground pin.
3. DIM: Dimming control pin.
4. NC: No connection.
5. VOUT: Output voltage pin.
6. EN: Enable pin.

Functional Features

• High-efficiency boost converter: The IC integrates a high-efficiency boost converter that efficiently drives the LED backlight.
• PWM dimming control: It supports pulse width modulation (PWM) dimming control, allowing precise brightness adjustment.
• Over-temperature protection: The IC incorporates over-temperature protection to prevent damage due to excessive heat.
• Under-voltage lockout: It includes under-voltage lockout circuitry to ensure proper operation within the specified voltage range.

Advantages and Disadvantages

Advantages

• High power conversion efficiency leads to reduced energy consumption.
• Compact package enables usage in space-constrained applications.
• Wide input voltage range provides flexibility in various electronic devices.
• Dimming control allows users to adjust brightness according to their preferences.

Disadvantages

• Limited output current range may not be suitable for high-power LED backlighting applications.
• SOT23-6 package may require additional thermal management for certain applications.

Working Principles

The IS31BL3508B-STLS2-TR operates as a boost converter, converting the input voltage to a higher voltage required for driving the LED backlight. The integrated PWM dimming control adjusts the duty cycle of the output voltage, thereby controlling the brightness of the LED backlight.

Detailed Application Field Plans

The IS31BL3508B-STLS2-TR is widely used in various electronic devices that require LED backlighting. Some specific application fields include: - LCD monitors and televisions - Laptops and tablets - Automotive displays and infotainment systems - Industrial control panels and instrumentation

Alternative Models

• IS31BL3508B-STLS1-TR
• IS31BL3508A-STLS2-TR
• IS31BL3508C-STLS2-TR

These alternative models offer similar functionality and characteristics, providing options for different design requirements.

In conclusion, the IS31BL3508B-STLS2-TR is a highly efficient integrated circuit designed for LED backlighting applications. Its compact package, wide voltage range, and dimming control make it suitable for various electronic devices. However, designers should consider the limited output current range and thermal management requirements for specific applications.