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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Flp5810″>View Datasheet

Texas Instruments LP5810 4-Channel RGBW LED Drivers

Texas Instruments LP5810 4-Channel RGBW LED Drivers are ultra-low regular operation current with a typical 0.4mA when illuminating LEDs. These drivers operate compatible with 1.8V, 3.3V, and 5V voltage range logic pins. The LP5810 LED drivers feature autonomous animation engine control. These LED drivers offer an output current of each LED that can be adjusted with 256 steps from 0.1mA to 25.5mA or 0.2mA to 51mA. The LP5810 4-Channel RGBW LED drivers operate at -40°C to 85°C temperature range. These drivers generate a 6MHz clock signal and synchronize the lighting effects among multiple devices. The LP5810 drivers are ideal for portable and wearable, gaming and home entertainment, Internet-of-Things (IoT), networking, and industrial HMI.

Features

  • Autonomous animation engine control
  • Individual LED dot open/short detection
  • Integrated de-ghosting function
  • 1MHz (maximum) I2C interface
  • -40°C to 85°C operating temperature range
  • PWM dimming up to audible-noise-free 24kHz frequency:
    • Individual 8-bit PWM dimming resolution
    • Linear or exponential dimming curves

Specifications

  • Operating voltage ranges:
    • 2.7V to 5.5V VCC range
    • Logic pins compatible with 1.8V, 3.3V, and 5V voltages
  • 4 constant current sinks with high precision:
    • 0.1mA to 51mA per current sink
    • Maximum ±5% device-to-device error
    • Maximum ±5% channel-to-channel error
    • 110mV (typical) @ 25.5mA and 210mV (typical) @ 51mA ultra-low headroom voltage
    • 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) of 25.5mA or 51mA
    • Individual 8-bit Dot Current (DC) setting

Applications

  • Portable and wearable electronics:
    • Earbud and charging case, E-cigarette, and smart watch
  • Gaming and home entertainment:
    • Smart speaker, RGB mouse, VR headset, and controller
  • Internet-of-Things (IoT):
    • E-tag and video doorbell
  • Networking:
    • Router and access point
  • Industrial HMI:
    • EV charger and factory automation

Schematic

Schematic - Texas Instruments LP5810 4-Channel RGBW LED Drivers

Functional Block Diagram

Block Diagram - Texas Instruments LP5810 4-Channel RGBW LED Drivers

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Texas Instruments LP5810 4-Channel RGBW LED Drivers