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
Data sheet
LP5817
- 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.
Technical documentation
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View all 1 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LP5817 3 -Channel I2 C Interface RGB LED Driver datasheet | PDF | HTML | 05 Mar 2025 |
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.
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-5X3 (DRL) | 8 | Ultra Librarian |
Ordering & quality
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