Product details

Number of channels (#) 24 LED current per channel (mA) 35 LED configuration Parallel Program memory No Programmable ramp control No Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Iout (Max) (A) 0.84 Features Constant Current, Current Control, I2C Control, Power Save Mode Iq (Typ) (mA) 0.01 Shutdown current (Typ) (uA) 0.2 Operating temperature range (C) -40 to 85 Rating Catalog
Number of channels (#) 24 LED current per channel (mA) 35 LED configuration Parallel Program memory No Programmable ramp control No Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Iout (Max) (A) 0.84 Features Constant Current, Current Control, I2C Control, Power Save Mode Iq (Typ) (mA) 0.01 Shutdown current (Typ) (uA) 0.2 Operating temperature range (C) -40 to 85 Rating Catalog
VQFN (RSM) 32 16 mm² 4 x 4
  • 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
  • 24 Constant-Current Sinks With High Precision
    • 25.5 mA Maximum per Channel With VCC in Full Range
    • 35 mA Maximum per Channel When VCC ≥ 3.3 V
    • Device-to-Device Error: ±7%; Channel-to-Channel Error: ±7%
  • Ultralow Quiescent Current:
    • Shutdown Mode: 1 µA (Maximum) With EN Low
    • Power Saving Mode: 10 µA (Typical) With 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 PWM-Shifting 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
  • 24 Constant-Current Sinks With High Precision
    • 25.5 mA Maximum per Channel With VCC in Full Range
    • 35 mA Maximum per Channel When VCC ≥ 3.3 V
    • Device-to-Device Error: ±7%; Channel-to-Channel Error: ±7%
  • Ultralow Quiescent Current:
    • Shutdown Mode: 1 µA (Maximum) With EN Low
    • Power Saving Mode: 10 µA (Typical) With 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 PWM-Shifting 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

In smart homes and other applications that utilize human-machine-interaction, high-performance RGB LED drivers are required. LED animation effects such as flashing, breathing, and chasing greatly improve user experience, and minimal system noise is essential.

The LP50xx device is an 18- or 24-channel constant current sink LED driver. The LP50xx device includes integrated color mixing and brightness control, and pre-configuration simplifies the software coding process. Integrated 12-bit, 29 kHz PWM generators for each channel enable smooth, vivid color for LEDs, and eliminate audible noise.

The LP50xx device controls each LED output with a 12-bit PWM resolution at 29-kHz switching frequency, which helps achieve a smooth dimming effect and eliminates audible noise. The independent color mixing and intensity control registers make the software coding straightforward. When targeting a fade-in, fade-out type breathing effect, the global R, G, B bank control reduces the microcontroller loading significantly. The LP50xx device also implements a PWM phase-shifting function to help reduce the input power budget when LEDs turn on simultaneously.

The LP50xx device implements an automatic power-saving mode to achieve ultralow quiescent current. When channels are all off for 30 ms, the device total power consumption is down to 10 µA, which makes the LP50xx device a potential choice for battery-powered end equipment.

In smart homes and other applications that utilize human-machine-interaction, high-performance RGB LED drivers are required. LED animation effects such as flashing, breathing, and chasing greatly improve user experience, and minimal system noise is essential.

The LP50xx device is an 18- or 24-channel constant current sink LED driver. The LP50xx device includes integrated color mixing and brightness control, and pre-configuration simplifies the software coding process. Integrated 12-bit, 29 kHz PWM generators for each channel enable smooth, vivid color for LEDs, and eliminate audible noise.

The LP50xx device controls each LED output with a 12-bit PWM resolution at 29-kHz switching frequency, which helps achieve a smooth dimming effect and eliminates audible noise. The independent color mixing and intensity control registers make the software coding straightforward. When targeting a fade-in, fade-out type breathing effect, the global R, G, B bank control reduces the microcontroller loading significantly. The LP50xx device also implements a PWM phase-shifting function to help reduce the input power budget when LEDs turn on simultaneously.

The LP50xx device implements an automatic power-saving mode to achieve ultralow quiescent current. When channels are all off for 30 ms, the device total power consumption is down to 10 µA, which makes the LP50xx device a potential choice for battery-powered end equipment.

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Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LP5024EVM — LP5024 12-bit PWM ultralow quiescent current I2C RGB LED driver evaluation module

This board evaluates the LP5024 I2C bus-controlled, 24-channel, constant-current LED driver. The user's guide includes set-up instructions, a schematic diagram, a bill of materials, printed-circuit board layout drawings, and software instructions.

In stock
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GUI for evaluation module (EVM)

LP50EVM GUI (Rev. A)

SLVC713A.ZIP (86539 KB)
Simulation model

LP5024 & LP5018 Unencrypted PSpice Transient Model

SLVMCI3.ZIP (10 KB) - PSpice Model
Simulation model

LP5024 & LP5018 PSpice Transient Model

SLVMCI4.ZIP (116 KB) - PSpice Model
Simulation tool

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 (...)
Reference designs

TIDA-050011 — Various LED Ring Lighting Patterns Reference Design

This reference design enables human-machine interface scenarios with an LED ring that utilizes two LP5024 LED drivers to create vivid lighting patterns. Design helps to resolve common challenges for end equipment with complicated lighting patterns and constant voltage supply. This design can also (...)
Package Pins Download
VQFN (RSM) 32 View options

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