LP5813
Synchronous boost 4 x 3 matrix RGB LED driver with I2C and auto animation control
LP5813
- Operating voltage range:
- Input voltage (V IN) range: 0.5 V to 5.5 V
- 1.8-V minimum input voltage for start-up
- Logic pins compatible with 1.8 V, 3.3 V, and 5 V
- High efficiency synchronous boost converter
- Output voltage (V OUT) range: 3 V to 5.5 V
- 140-mΩ (HS) / 60-mΩ (LS) MOSFETs
- 1.6-A valley switching current limit
- 95% efficiency at V IN = 4.2 V, V OUT = 5.0 V, I OUT = 300 mA
- Pass-through mode when VIN > VOUT setting
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True disconnection between input and output during shutdown
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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:
- 0.1-mA to 51-mA per current sink
- Device-to-device error: max ±5%
- Channel-to-channel error: max ±5%
- Ultra-low headroom voltage: 110 mV (typ.) at 25.5 mA; 210 mV (typ.) at 51 mA
- PWM phase shift configurable for each LED
- Ultra-low power consumption:
- Shutdown: I SD = 0.1 µA (typical) when EN = Low
- Standby: I STB = 26 µA (typical) when EN = High and CHIP_EN = 0 (data retained)
- Active: I NOR = 0.45 mA (typical) when LED current = 25.5 mA
- Analog dimming (current gain control)
- Global 1-bit Maximum Current (MC): 25.5 mA or 51 mA
- Individual 8-bit Dot Current (DC) setting
- PWM dimming up to audible-noise-free 24 kHz
- 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
- 1-MHz (max.) I 2C interface
- –40°C to 85°C operating temperature range
The LP5813 is a synchronous boost 4 × 3 matrix RGB LED driver with autonomous animation engine control. The device is ideal to support battery-powered applications with 0.5-V to 5.5-V input voltage range, and it has ultra-low normal operation current with 0.4-mA (typical) when illuminate LEDs.
The integrated synchronous boost converter maintains excellent efficiency and keeps the brightness of LEDs stable over a wide operating voltage range. Output voltage can be selected for different LED forward voltage from 3 V to 5.5 V with 0.1-V step. The boost converter can power not only the LEDs driven by the device itself, but also other loads in the system. If the boost converter need to be bypassed, VOUT is used as the power supply input for the LED driver blocks.
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 6-MHz clock signal and use it for synchronizing the lighting effects among multiple devices.
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Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | LP5813 Synchronous Boost 4 × 3 Matrix RGB LED Driver With Autonomous Control datasheet | PDF | HTML | 11 Nov 2021 |
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 | Download |
---|---|---|
DSBGA (YBH) | 12 | View options |
WSON (DRR) | 12 | View options |
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