Manufacturer Part Number
LP8557AYFQR
Manufacturer
Texas Instruments
Introduction
The LP8557AYFQR is a high-efficiency LED driver designed for power management, specifically tailored for backlight applications utilizing a step-up (boost) topology.
Product Features and Performance
DC DC Regulator with internal switch
Step-Up (Boost) topology
Capable of driving up to 6 outputs
Supports a wide input voltage range from 2.7V to 5.5V
Delivers a stable output voltage of 28V
Provides 25mA current per output channel
Operating frequency adjustable between 500kHz and 1MHz
PWM dimming capability
Operating temperature range from -30°C to 85°C
Product Advantages
High efficiency and reliability
Compact 16-DSBGA package for space-sensitive applications
Integrated internal switches reduce external component requirements
Flexible frequency adjustment enhances performance in various application conditions
Key Technical Parameters
Voltage Supply (Min): 2.7V
Voltage Supply (Max): 5.5V
Voltage Output: 28V
Current Output / Channel: 25mA
Frequency: 500kHz, 1MHz
Number of Outputs: 6
Quality and Safety Features
Robust operation in extreme temperature conditions
Enhanced thermal management ensuring long-term reliability
Compatibility
Ideal for driving multiple LEDs in series or parallel configurations
Suitable for integration in various backlight modules
Application Areas
LED backlighting for various display technologies
Product Lifecycle
Currently active product status
Not nearing discontinuation and replacements or upgrades are readily available
Several Key Reasons to Choose This Product
High efficiency leading to energy savings
Flexible design suitable for a wide range of backlight applications
Reliable performance in extended temperature ranges
Compact form factor facilitating easier design integration
Available in tape and reel packaging for high-volume production needs
