Dual Display White LED Driver With I2C Compatible Brightness Control

The LM27965 is a highly integrated charge-pump-based dual-display LED Driver The device CAN drive up to 9 LEDs in parallel with a total output current of 180mA. Regulated internal current sinks deliver excellent current and brightness matching in all LEDs
The LED Driver current sinks are split into three independently controlled groups. The primary group CAN beconfigurabled with 4 or 5 LEDs for backlighting a larger main Display and the second group CAN be configured with 2 or 3 LEDs for backlighing a smaller secondary Display An additional, independently controlled LED Driver is provided for driving an indicator or general purpose LED The LM27965 has an I 2C compatible Interface that allows the user to independently control the brightness on each bank of LEDs
The device provides excellent efficiency without the use of an inductor by operating the Charge Pump in a gain of 3/2, or in Pass-Mode. The proper gain for maintaining current regulation is chosen based on LED forward voltage, so that efficiency is maximized over the input voltage range.
The LM27965 is available in National's small 24-pin Leadless Leadframe Package (LLP-24).
By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM27965SQX-M/NOPB Texas Instruments Dual Display White LED Driver with I2C Compatible Brightness Control 24-WQFN
LM27965SQ/NOPB Texas Instruments Dual Display White LED Driver with I2C Compatible Brightness Control 24-WQFN -30 to 85
LM27965SQX/NOPB Texas Instruments Dual Display White LED Driver with I2C Compatible Brightness Control 24-WQFN -30 to 85
LM27965SQEV Texas Instruments Dual Display White LED Driver with I2C Compatible Brightness Control
LM27965SQ-M/NOPB Texas Instruments Dual Display White LED Driver with I2C Compatible Brightness Control 24-WQFN
LM27965 's PackagesLM27965 's pdf datasheet
LM27965SQEV
LM27965SQ-M LLP
LM27965SQ LLP
LM27965SQX-M LLP
LM27965SQX LLP




LM27965 Pinout, Pinouts
LM27965 pinout,Pin out
This is one package pinout of LM27965,If you need more pinouts please download LM27965's pdf datasheet.

LM27965 Application circuits
LM27965 circuits
This is one application circuit of LM27965,If you need more circuits,please download LM27965's pdf datasheet.


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