Datasheet4U Logo Datasheet4U.com

LM2755 - Charge Pump LED Controller

General Description

The LM2755 is a charge-pump-based, constant current LED driver capable of driving 3 LEDs with a total output current up to 90mA.

Key Features

  • 90% Peak Efficiency Total solution size < 13mm2 No Inductor Required: Only 4 Inexpensive Ceramic Caps 3 Independently Controlled Constant Current Outputs Programmable Trapezoidal Dimming Waveform on Each Output Programmable Timing Control Via Internal Registers and External Clock Synchronization Input 32 Exponential Dimming Steps with 800:1 Dimming Ratio Programmable brightness control via I2C compatible interface Hardware Enable.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
LM2755 Charge Pump LED Controller Texas Instruments
LM2750 Low-Noise Switched-Capacitor Boost Regulator Texas Instruments
LM2750-ADJ Low-Noise Switched-Capacitor Boost Regulator Texas Instruments
LM2751 White LED Driver Texas Instruments
LM2753 High-Power Switched-Capacitor Voltage Converter and Flash LED Driver Texas Instruments

Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
LM2750 Low Noise/ 5.0V Regulated Switched Capacitor Voltage Converter
LM2751 Capacitor White LED Driver
LM2753 High Power Switched Capacitor Voltage Convertor/Flash LED Driver
LM2754 800mA Switched Capacitor Flash LED Driver
LM2756 Multi-Display Inductorless LED Driver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LM2755 Charge Pump LED Controller with I2C Compatible Interface October 2007 LM2755 Charge Pump LED Controller with I2C Compatible Interface www.datasheet4u.com in Micro SMD General Description The LM2755 is a charge-pump-based, constant current LED driver capable of driving 3 LEDs with a total output current up to 90mA. The diode current waveforms of each LED can be trapezoidal with timing and level parameters (rise time, fall time, high level, low level, delay, high time, low time) programmed via an I2C compatible interface. The 32 brightness levels found on the LM2755 are exponentially spaced (as opposed to linearly spaced) to better match the response of the human eye to changing brightness levels. The device requires only four small and low-cost ceramic capacitors.