Manufacturer Part Number
LM2794TLX
Manufacturer
Texas Instruments
Introduction
The LM2794TLX is a DC DC regulator LED driver designed for power management in LED backlight applications. Its switched capacitor (charge pump) topology allows it to efficiently control up to four LED outputs.
Product Features and Performance
Integrated with a DC DC regulator for precise voltage control
Switched Capacitor (Charge Pump) topology enhances efficiency
Capable of driving 4 LED outputs simultaneously
Supports a wide supply voltage range from 2.7V to 5.5V
Provides a stable 3.8V output voltage
Delivers up to 20mA current per output channel
Operates at a high-frequency of 515kHz
Features both Analog and PWM dimming modes
Designed for surface mount technology
Product Advantages
Compact 14-WFBGA, DSBGA package saves space on PCBs
High-efficiency charge pump minimizes power loss
Flexible dimming options allow for adjustable brightness levels
Multi-output capability simplifies design for multiple LED configurations
Key Technical Parameters
Voltage Supply (Min): 2.7V
Voltage Supply (Max): 5.5V
Voltage Output: 3.8V
Current Output / Channel: 20mA
Frequency: 515kHz
Quality and Safety Features
Operates within a broad temperature range (-30°C ~ 85°C), ensuring reliability in varied environments
Compatibility
Suitable for surface mount technology, facilitating integration into existing designs without requiring extensive redesign
Application Areas
Primarily used for backlighting applications in various devices such as mobile phones, portable media players, and handheld gaming consoles
Product Lifecycle
Classified as Obsolete, indicating that it is nearing discontinuation with limited availability
Users should consider planning for replacements or upgrades
Several Key Reasons to Choose This Product
High efficiency and compact design improve overall system performance and save space
Supports a broad range of input voltages, enhancing compatibility with various power sources
Offers multiple dimming options, providing flexibility in controlling brightness levels
Reliable operation across a wide temperature range ensures suitability for a variety of applications
Despite being obsolete, ideal for designs where space and power efficiency are critical, and immediate upgrading is not feasible
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