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RGB LED 驅動器

LP5018

現行

18 通道 I2C 定電流 RGB LED 驅動器

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產品規格表

LP5018

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 18 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) 0.63 Features Constant current, Current control, I2C control, Power-save mode Iq (typ) (mA) 0.01 Shutdown current (ISD) (typ) (µA) 0.2 Operating temperature range (°C) -40 to 125 Rating Catalog
Number of channels 18 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) 0.63 Features Constant current, Current control, I2C control, Power-save mode Iq (typ) (mA) 0.01 Shutdown current (ISD) (typ) (µA) 0.2 Operating temperature range (°C) -40 to 125 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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LP5024 現行 24 通道 I2C 定電流 RGB LED 驅動器 LP5024 and LP5018 are hardware and software compatible

技術文件

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類型 標題 日期
* Data sheet LP50xx 18-, 24-Channel, 12-Bit, PWM Ultralow-Quiescent-Current, I2C RGB LED Drivers datasheet (Rev. B) PDF | HTML 2018年 10月 24日
White paper Common LED Functions and LED Driver Design Considerations 2020年 9月 21日
Application note System Design Guidelines for Full-Color RGB LED Matrix Based on LP50xx Device 2020年 4月 8日
Application note How to Select a RGB LED Driver 2019年 8月 8日
White paper 智慧型喇叭基本說明： 衡量各種設計優缺點 2019年 2月 8日
Technical article Using an RGBW LED driver to elevate LED human-machine interface designs PDF | HTML 2018年 11月 27日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LP5024EVM — LP5024 12 位元 PWM 超靜態電流 I2C RGB LED 驅動器評估模組

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.

使用指南: PDF
TI.com 無法提供
開發模組 (EVM) 的 GUI

SLVC713 — LP50EVM GUI

支援產品和硬體

支援產品和硬體

產品
RGB LED 驅動器
LP5009 — 九通道 I2C 定電流 RGB LED 驅動器 LP5012 — 12 通道 I2C 定電流 RGB LED 驅動器 LP5018 — 18 通道 I2C 定電流 RGB LED 驅動器 LP5024 — 24 通道 I2C 定電流 RGB LED 驅動器 LP5030 — 30 通道 I2C 定電流 RGB LED 驅動器 LP5036 — 36 通道 I2C 定電流 RGB LED 驅動器
硬體開發
開發板
LP5012EVM — LP5012EVM、12 位元 PWM 超低靜態電流 I2C RGB LED 驅動器評估模組，適用 LP5024EVM — LP5024 12 位元 PWM 超靜態電流 I2C RGB LED 驅動器評估模組 LP5036EVM — LP5036EVM、12 位元 PWM 超低靜態電流 I2C RGB LED 驅動器評估模組，適用
下載
模擬型號

LP5024 & LP5018 PSpice Transient Model

SLVMCI4.ZIP (116 KB) - PSpice Model
下載
模擬型號

LP5024 & LP5018 Unencrypted PSpice Transient Model

SLVMCI3.ZIP (10 KB) - PSpice Model
下載
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

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 (...)
要求
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VQFN (RSM) 32 檢視選項
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  • RoHS
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  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 資格摘要
  • 進行中可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

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