LP5812
- Operating voltage range:
- VCC range: 2.7V to 5.5V
- Logic pins compatible with 1.8V, 3.3V, and 5V
-
Time-cross-multiplexing (TCM) topology:
- Drives up to 12 LEDs or 4 RGB LEDs
- ¼, ⅓, ½, 1 multiplexing ratio
- Supports direct, TCM, and mix-drive modes
- 4 constant current sinks with high precision:
- 0.1mA to 51mA per current sink
- Device-to-device error: max ±5%
- Channel-to-channel error: max ±5%
- Ultra-low headroom voltage: 110mV (typ.) at 25.5mA; 210mV (typ.) at 51mA
- PWM phase shift configurable for each LED
- Ultra-low power consumption:
- Standby: ISTB = 26µA (typical) when CHIP_EN = 0 (data retained)
- Active: INOR = 0.4mA (typical) when LED current = 25.5mA
- Analog dimming (current gain control)
- Global 1-bit Maximum Current (MC): 25.5mA or 51mA
- Individual 8-bit Dot Current (DC) setting
- PWM dimming up to audible-noise-free 24kHz
- Individual 8-bit PWM dimming resolution
- Linear or exponential dimming curves
- Autonomous animation engine control
- Individual LED dot open/short detection
- Integrated de-ghosting function
- 1MHz (max.) I2C interface
- –40°C to 85°C operating temperature range
The LP5812 is a 4 × 3 matrix RGB LED driver with autonomous animation engine control. The device has ultra-low normal operation current with 0.4mA (typical) when illuminate LEDs.
The time-cross-multiplexing (TCM) structure is adopted, which uses 4 output pins to control 12 LED dots individually. Both high-side scan switch and low-side current sink are contained in one output. The total solution size are minimized for space limited system.
The autonomous animation engine can significantly reduce the real-time loading of controller. Each LED can be configured through the related registers to realize vivid and fancy lighting effects. The device can generate 6MHz clock signal and use it for synchronizing the lighting effects among multiple devices.
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Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | LP5812 4 × 3 Matrix RGB LED Driver with Autonomous Control datasheet (Rev. A) | PDF | HTML | 08 Aug 2024 |
User guide | LP5812 Register Map | PDF | HTML | 15 Oct 2024 | |
Certificate | LP5813-12WSONEVM EU Declaration of Conformity (DoC) | 26 Feb 2024 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
LP5813-12WCSPEVM — LP5813/LP5812 evaluation module for 4 x 3 LED matrix driver with auto animation control
The LP5813/12 evaluation module showcases all the features of the LP5813 and LP5812 4 × 3 matrix RGB LED driver. The difference between the two devices is with or without synchronous boost function. The LP581x graphical user interface (GUI) is used to interface with USB2ANY to the EVM. The (...)
LP5813-12WSONEVM — LP5813 and LP5812 evaluation module for WSON package
The LP5813 and LP5812 evaluation module (EVM) showcases all the features of the LP5813 and LP5812 4 × 3 matrix RGB LED driver with autonomous control. The difference between two devices is with or without synchronous boost function. Both LP5813 and LP5812 are placed on one board, please select the (...)
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
DSBGA (YBH) | 9 | Ultra Librarian |
WSON (DSD) | 8 | Ultra Librarian |
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