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LP5813

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12 RGB LED synchronous boost driver with I2C and autonomous control

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Data sheet

LP5813

ACTIVE
Data sheet Order now

Product details

Number of channels 12 LED current per channel (mA) 50 LED configuration Matrix Program memory Yes Topology Boost Programmable ramp control Yes Vin (min) (V) 0.5 Vin (max) (V) 5.5 Iout (max) (A) 0.2 Features Analog/PWM mixed dimming, Constant current, I2C control, LED Open Detection, LED Short Detection, Programmable lighting engines, Thermal shutdown Iq (typ) (mA) 0.4 Shutdown current (ISD) (typ) (µA) 0.1 Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 12 LED current per channel (mA) 50 LED configuration Matrix Program memory Yes Topology Boost Programmable ramp control Yes Vin (min) (V) 0.5 Vin (max) (V) 5.5 Iout (max) (A) 0.2 Features Analog/PWM mixed dimming, Constant current, I2C control, LED Open Detection, LED Short Detection, Programmable lighting engines, Thermal shutdown Iq (typ) (mA) 0.4 Shutdown current (ISD) (typ) (µA) 0.1 Operating temperature range (°C) -40 to 85 Rating Catalog
DSBGA (YBH) 12 2.5116 mm² 1.82 x 1.38
  • 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

    • True disconnection between input and output during shutdown

  • 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
  • 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

    • True disconnection between input and output during shutdown

  • 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.

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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* Data sheet LP5813 Synchronous Boost 4 × 3 Matrix RGB LED Driver With Autonomous Control datasheet PDF | HTML 11 Nov 2021
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Technical article LED brightness adjustment: high-frequency PWM dimming 26 Aug 2016
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Design & development

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Evaluation board

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 (...)

User guide: PDF | HTML
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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 (...)
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