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LM2795 - Current Regulated Switched Capacitor LED Supply

Download the LM2795 datasheet PDF. This datasheet also covers the LM2794 variant, as both devices belong to the same current regulated switched capacitor led supply family and are provided as variant models within a single manufacturer datasheet.

Description

The LM2794/95 is a fractional CMOS charge-pump that provides four regulated current sources.

It accepts an input voltage range from 2.7V to 5.5V and maintains a constant current determined by an external sense resistor.

The LM2794/5 delivers up to 80mA of load current to accommodate four White LEDs.

Features

  • 1.
  • 2 Regulated Current Sources with ±0.5% Matching between any Two Outputs.
  • High Efficiency 3/2 Boost Function.
  • Drives One, Two, Three or four White LEDs.
  • 2.7V to 5.5V Input Voltage.
  • Up to 80mA Output Current.
  • Analog Brightness Control.
  • Active-Low or High Shutdown Input ('94/95).
  • Very Small Solution Size and no Inductor.
  • 2.3µA (typ. ) Shutdown Current.
  • 325kHz Switching Frequency (min. ).
  • Constant Freq.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM2794-etcTI.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LM27951 White LED Adaptive 1.5X/1X Switched Capacitor Current Driver National Semiconductor
LM27952 White LED Adaptive 1.5X/1X Switched Capacitor Current Driver National Semiconductor
LM27953 White LED Driver National Semiconductor
LM2791 Current Regulated Switched Capacitor LED Driver National Semiconductor
LM2792 Current Regulated Switched Capacitor LED Driver National Semiconductor

Other Datasheets by Texas Instruments

Part Number Description
LM27951 white-LED Driver
LM27952 white-LED Driver
LM2794 Current Regulated Switched Capacitor LED Supply
LM2796 Dual-Display White LED Driver
LM27964 White LED Driver

Full PDF Text Transcription

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LM2794, LM2795 www.ti.com SNVS168L – JANUARY 2002 – REVISED MAY 2013 LM2794 /LM2795 Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control Check for Samples: LM2794, LM2795 FEATURES 1 •2 Regulated Current Sources with ±0.5% Matching between any Two Outputs • High Efficiency 3/2 Boost Function • Drives One, Two, Three or four White LEDs • 2.7V to 5.5V Input Voltage • Up to 80mA Output Current • Analog Brightness Control • Active-Low or High Shutdown Input ('94/95) • Very Small Solution Size and no Inductor • 2.3µA (typ.) Shutdown Current • 325kHz Switching Frequency (min.) • Constant Frequency Generates Predictable Noise Spectrum • Thin DSBGA Package: 2.08mm X 2.403mm X 0.
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