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LP5030

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30-channel I2C constant current RGB LED driver

Product details

Number of channels 30 LED current per channel (mA) 35 LED configuration Parallel Program memory No Topology Current Sink Programmable ramp control No Vin (min) (V) 2.7 Vin (max) (V) 5.5 Iout (max) (A) 1.05 Features Constant current, Current control, I2C control, Power-save mode Iq (typ) (mA) 0.01 Shutdown current (ISD) (typ) (µA) 1 Operating temperature range (°C) -40 to 125 Rating Catalog
Number of channels 30 LED current per channel (mA) 35 LED configuration Parallel Program memory No Topology Current Sink Programmable ramp control No Vin (min) (V) 2.7 Vin (max) (V) 5.5 Iout (max) (A) 1.05 Features Constant current, Current control, I2C control, Power-save mode Iq (typ) (mA) 0.01 Shutdown current (ISD) (typ) (µA) 1 Operating temperature range (°C) -40 to 125 Rating Catalog
VQFN (RJV) 46 30 mm² 6 x 5
  • Operating Voltage Range:
    • VCC Range: 2.7 V to 5.5 V
    • EN, SDA, and SCL Pins Compatible With 1.8-V, 3.3-V, and 5-V Power Rails
    • Output Maximum Voltage: 6 V
  • 36 Constant-Current Sinks With High Precision
    • 25.5 mA Maximum per Channel When VCC in Full Range
    • 35 mA Maximum per Channel When VCC ≥ 3.3 V
    • Device-to-Device Error ±5%; Channel-to-Channel Error ±5%
  • Ultralow Quiescent Current:
    • Shutdown Mode: 1 µA (Maximum) When EN Low
    • Power Saving Mode: 12 µA (Maximum) When EN High and All LEDs Off for > 30 ms
  • Integrated 12-Bit, 29-kHz PWM Generator for Each Channel:
    • Independent Color-Mixing Register Per Channel
    • Independent Brightness-Control Register Per RGB LED Module
    • Optional Logarithmic- or Linear-Scale Brightness Control
    • Integrated 3-Phase-Shifting PWM Scheme
  • 3 Programmable Banks (R, G, B) for Easy Software Control of Each Color
  • 2 External Hardware Address Pins Allow Connecting up to 4 Devices
  • Broadcast Slave Address Allows Configuring Multiple Devices Simultaneously
  • Auto-Increment Allows Writing or Reading Consecutive Registers Within One Transmission
  • Up to 400-kHz Fast-Mode I2C Speed
  • Operating Voltage Range:
    • VCC Range: 2.7 V to 5.5 V
    • EN, SDA, and SCL Pins Compatible With 1.8-V, 3.3-V, and 5-V Power Rails
    • Output Maximum Voltage: 6 V
  • 36 Constant-Current Sinks With High Precision
    • 25.5 mA Maximum per Channel When VCC in Full Range
    • 35 mA Maximum per Channel When VCC ≥ 3.3 V
    • Device-to-Device Error ±5%; Channel-to-Channel Error ±5%
  • Ultralow Quiescent Current:
    • Shutdown Mode: 1 µA (Maximum) When EN Low
    • Power Saving Mode: 12 µA (Maximum) When EN High and All LEDs Off for > 30 ms
  • Integrated 12-Bit, 29-kHz PWM Generator for Each Channel:
    • Independent Color-Mixing Register Per Channel
    • Independent Brightness-Control Register Per RGB LED Module
    • Optional Logarithmic- or Linear-Scale Brightness Control
    • Integrated 3-Phase-Shifting PWM Scheme
  • 3 Programmable Banks (R, G, B) for Easy Software Control of Each Color
  • 2 External Hardware Address Pins Allow Connecting up to 4 Devices
  • Broadcast Slave Address Allows Configuring Multiple Devices Simultaneously
  • Auto-Increment Allows Writing or Reading Consecutive Registers Within One Transmission
  • Up to 400-kHz Fast-Mode I2C Speed

Efficient and high-performance LED response effects, such as blinking, breathing, and chasing, are critical to improving end-user experience in many human machine interface (HMI) applications.

The LP503x device is a 30- or 36-channel constant-current-sink LED driver. The LP503x has a 29 kHz, 12-Bit PWM generator for each channel, as well as channel/module independent color mixing and intensity control, formerly called brightness control registers to enable vivid LED effects with zero audible noise. Users can benefit from the device’s ultra-low shutdown Iq Power Saving Mode, while designers will appreciate the incredibly straightforward software coding of the LP503x’s three programmable R G B banks.

The LP503x device controls each LED output with a 12-bit PWM resolution at 29-kHz switching frequency. This control helps get an intensity that decreases smoothly and stops audible noise. Having different color-mixing and intensity-control registers makes writing the software code straightforward. When targeting fade-in, fade-out type breathing effects, the global R, G, B bank control reduces the microcontroller loading significantly. The LP503x device also implements a PWM phase-shifting function to help reduce the input power budget when LEDs turn on simultaneously.

The LP503x device has an automatic power-saving mode to get the ultra-low quiescent current. When channels are all off for 30 ms, the device total power consumption is down to 10 µA, making the LP503x device a possible alternative for battery-powered end equipment.

Efficient and high-performance LED response effects, such as blinking, breathing, and chasing, are critical to improving end-user experience in many human machine interface (HMI) applications.

The LP503x device is a 30- or 36-channel constant-current-sink LED driver. The LP503x has a 29 kHz, 12-Bit PWM generator for each channel, as well as channel/module independent color mixing and intensity control, formerly called brightness control registers to enable vivid LED effects with zero audible noise. Users can benefit from the device’s ultra-low shutdown Iq Power Saving Mode, while designers will appreciate the incredibly straightforward software coding of the LP503x’s three programmable R G B banks.

The LP503x device controls each LED output with a 12-bit PWM resolution at 29-kHz switching frequency. This control helps get an intensity that decreases smoothly and stops audible noise. Having different color-mixing and intensity-control registers makes writing the software code straightforward. When targeting fade-in, fade-out type breathing effects, the global R, G, B bank control reduces the microcontroller loading significantly. The LP503x device also implements a PWM phase-shifting function to help reduce the input power budget when LEDs turn on simultaneously.

The LP503x device has an automatic power-saving mode to get the ultra-low quiescent current. When channels are all off for 30 ms, the device total power consumption is down to 10 µA, making the LP503x device a possible alternative for battery-powered end equipment.

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Technical documentation

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Type Title Date
* Data sheet LP503x 36-, 30-Channel 12-Bit PWM Ultra-low Quiescent Current I2C RGB LED Drivers datasheet (Rev. B) PDF | HTML 21 Jan 2019
White paper Common LED Functions and LED Driver Design Considerations 21 Sep 2020
Application note System Design Guidelines for Full-Color RGB LED Matrix Based on LP50xx Device 08 Apr 2020
Application note How to Select a RGB LED Driver 08 Aug 2019
White paper Smart speaker fundamentals: Weighing the many design trade-offs 25 Feb 2019
White paper 智慧型喇叭基本說明: 衡量各種設計優缺點 08 Feb 2019
White paper 스마트 스피커 기본 사항: 설계 장단점 따져 보기 08 Feb 2019
Technical article Using an RGBW LED driver to elevate LED human-machine interface designs PDF | HTML 27 Nov 2018

Design & development

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Evaluation board

LP5036EVM — LP5036EVM, 12-bit PWM ultralow quiescent current I2C RGB LED driver evaluation module, suitable for

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Step 2: Download and install the LP50EVM user GUI and review the EVM users guide
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GUI for evaluation module (EVM)

SLVC713 LP50EVM GUI

Supported products & hardware

Supported products & hardware

Products
RGB LED drivers
LP5009 9-channel I2C constant-current RGB LED driver LP5012 12-channel I2C constant-current RGB LED driver LP5018 18-channel I2C constant-current RGB LED driver LP5024 24-channel I2C constant-current RGB LED driver LP5030 30-channel I2C constant current RGB LED driver LP5036 36-channel I2C constant current RGB LED driver
Hardware development
Evaluation board
LP5012EVM LP5012EVM, 12-bit PWM ultralow quiescent current I2C RGB LED driver evaluation module, suitable for LP5024EVM LP5024 12-bit PWM ultralow quiescent current I2C RGB LED driver evaluation module LP5036EVM LP5036EVM, 12-bit PWM ultralow quiescent current I2C RGB LED driver evaluation module, suitable for
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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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VQFN (RJV) 46 View options

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