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LP5817

ACTIVE

3-channel I2C interface RGB LED driver

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Data sheet

LP5817

ACTIVE
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Product details

Number of channels 3 LED current per channel (mA) 50 LED configuration Parallel Program memory No Topology Linear Programmable ramp control No Vin (min) (V) 2.5 Vin (max) (V) 5.5 Iout (max) (A) 0.15 Features Analog/PWM mixed dimming, Constant current, I2C control, Thermal shutdown Iq (typ) (mA) 0.15 Shutdown current (ISD) (typ) (µA) 0.1 Operating temperature range (°C) -40 to 125 Rating Catalog
Number of channels 3 LED current per channel (mA) 50 LED configuration Parallel Program memory No Topology Linear Programmable ramp control No Vin (min) (V) 2.5 Vin (max) (V) 5.5 Iout (max) (A) 0.15 Features Analog/PWM mixed dimming, Constant current, I2C control, Thermal shutdown Iq (typ) (mA) 0.15 Shutdown current (ISD) (typ) (µA) 0.1 Operating temperature range (°C) -40 to 125 Rating Catalog
SOT-5X3 (DRL) 8 3.36 mm² (2.1 mm × 1.6 mm) DSBGA (YCH) 8 0.98 mm² (1.4 mm × 0.7 mm)
  • Operating voltage range
    • VCC range: 2.5V to 5.5V
    • Logic pins compatible with 1.8V, 3.3V, and 5V
    • Output voltage up to 5.5V
  • 3 constant current sinks with high precision
    • 0.1mA to 51mA per channel
    • Device-to-device error: ±8% (max.)
    • Channel-to-channel error: ±3% (max.)
    • Ultra-low headroom voltage: 135mV (max.) at 25.5mA; 275mV (max.) at 51mA
  • Ultra-low power consumption
    • Shutdown: ISD = 0.1µA (typ.)
    • Standby: ISTB = 22µA (typ.)
    • Active:
      • INOR = 0.15mA (typ.) when disable output channel
      • INOR = 0.23mA (typ.) when LED current = 25.5mA
  • Analog dimming (current gain control)
    • Global 1-bit Maximum Current (MC): 25.5mA or 51mA
    • Individual 8-bits Dot Current (DC) setting
  • PWM dimming up to audible-noise-free 23kHz
    • Individual 8-bits PWM dimming resolution
    • Linear or exponential dimming curves
  • 400kHz (max.) I2C interface
  • ESD: 4kV HBM, 1.5kV CDM
  • Package
    • 1.6mm*2.1mm SOT583-8 with 0.5mm pitch
    • 1.36mm*0.8mm DSBGA-8 with 0.35mm pitch
  • –40°C to 125°C operating temperature range
  • Operating voltage range
    • VCC range: 2.5V to 5.5V
    • Logic pins compatible with 1.8V, 3.3V, and 5V
    • Output voltage up to 5.5V
  • 3 constant current sinks with high precision
    • 0.1mA to 51mA per channel
    • Device-to-device error: ±8% (max.)
    • Channel-to-channel error: ±3% (max.)
    • Ultra-low headroom voltage: 135mV (max.) at 25.5mA; 275mV (max.) at 51mA
  • Ultra-low power consumption
    • Shutdown: ISD = 0.1µA (typ.)
    • Standby: ISTB = 22µA (typ.)
    • Active:
      • INOR = 0.15mA (typ.) when disable output channel
      • INOR = 0.23mA (typ.) when LED current = 25.5mA
  • Analog dimming (current gain control)
    • Global 1-bit Maximum Current (MC): 25.5mA or 51mA
    • Individual 8-bits Dot Current (DC) setting
  • PWM dimming up to audible-noise-free 23kHz
    • Individual 8-bits PWM dimming resolution
    • Linear or exponential dimming curves
  • 400kHz (max.) I2C interface
  • ESD: 4kV HBM, 1.5kV CDM
  • Package
    • 1.6mm*2.1mm SOT583-8 with 0.5mm pitch
    • 1.36mm*0.8mm DSBGA-8 with 0.35mm pitch
  • –40°C to 125°C operating temperature range

The LP5817 is a 3-channel RGB LED driver. The device has ultra-low operation current with 0.1µA (typical) in shutdown mode, 0.15mA (typical) when enable device and 0.2mA (typical) when illuminate LEDs.

Both analog dimming and PWM dimming methods are adopted to achieve powerful dimming performance. The output current of each LED can be adjusted with 256 steps from 0.1mA to 25.5mA or 0.2mA to 51mA. The 8-bits PWM generator enables smooth and audible-noise-free dimming control for LED brightness.

The LP5817 is a 3-channel RGB LED driver. The device has ultra-low operation current with 0.1µA (typical) in shutdown mode, 0.15mA (typical) when enable device and 0.2mA (typical) when illuminate LEDs.

Both analog dimming and PWM dimming methods are adopted to achieve powerful dimming performance. The output current of each LED can be adjusted with 256 steps from 0.1mA to 25.5mA or 0.2mA to 51mA. The 8-bits PWM generator enables smooth and audible-noise-free dimming control for LED brightness.
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Technical documentation

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* Data sheet LP5817 3 -Channel I2 C Interface RGB LED Driver datasheet (Rev. A) PDF | HTML Aug 28, 2025
User guide LP581X RUKA Sample Code User Guide PDF | HTML Jul 9, 2026

Design & development

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Evaluation board

LP5815DRLEVM — LP5815 evaluation module

The LP5815 evaluation module (EVM) showcases the features of the LP5815 three-channel LED driver. The LP581x_RUKA graphical user interface (GUI) is provided to control all the family devices LP5814/4I/5/6/7 through the USB2ANY interface adapter.
User guide: PDF | HTML
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GUI for evaluation module (EVM)

LP581X-RUKA-GUI — LP581x_RUKA Graphical User Interface to control all the family devices LP5814/4I/5/6/7

LP581x_RUKA Graphical User Interface
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
SOT-5X3 (DRL) 8 Ultra Librarian
DSBGA (YCH) 8 Ultra Librarian
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