LM27966SQ - Texas Instruments

Manufacturer Part Number

LM27966SQ

Manufacturer

Texas Instruments

Introduction

The LM27966SQ is a power management integrated circuit (PMIC) specifically designed for LED driver applications. It features a switched capacitor (charge pump) topology to efficiently manage power for LED backlights.

Product Features and Performance

Integrated DC DC Regulator with Switched Capacitor (Charge Pump) topology

Supports up to 6 LED outputs

Operates over a supply voltage range of 2.7V to 5.5V

Provides an adjustable output voltage from 2V to 4V

Delivers up to 30mA current per output channel

Features I2C interface for dimming control

High-frequency operation at 1.27MHz

Product Advantages

Integrated internal switches eliminate the need for external components

Supports multiple outputs for flexible LED driving capabilities

Adjustable output voltage for various LED configurations

I2C dimming allows for precise brightness control

High operating frequency enables compact external components

Key Technical Parameters

Voltage Supply (Min): 2.7V

Voltage Supply (Max): 5.5V

Voltage Output: 2V ~ 4V

Current Output / Channel: 30mA

Frequency: 1.27MHz

Quality and Safety Features

Built with Texas Instruments' rigorous manufacturing standards

Includes thermal protection features

Operation within the industrial temperature range of -30°C to 85°C ensures reliability in varied environments

Compatibility

Suitable for use in applications requiring multiple LED backlights

Compatible with I2C-based dimming control systems

Application Areas

Primarily designed for backlighting applications in mobile phones, handheld devices, and portable electronics

Product Lifecycle

The LM27966SQ is listed as Obsolete, indicating that Texas Instruments has discontinued the part.

Customers are advised to seek replacements or upgrades for future designs.

Several Key Reasons to Choose This Product

Highly integrated solution reduces component count and design complexity

Supports multiple LEDs with adjustable output, providing flexibility for various backlight designs

I2C dimming capability offers precise control over backlight brightness, enhancing user experience

Operates across a wide supply voltage range, making it suited for battery-operated devices

Built by Texas Instruments, ensuring high-quality and reliable performance