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LP5012

現行

12 通道 I2C 定電流 RGB LED 驅動器

產品詳細資料

Number of channels 12 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) 0.035 Features I2C control Iq (typ) (mA) 0.01 Shutdown current (ISD) (typ) (µA) 1 Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 12 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) 0.035 Features I2C control Iq (typ) (mA) 0.01 Shutdown current (ISD) (typ) (µA) 1 Operating temperature range (°C) -40 to 85 Rating Catalog
TSSOP (PW) 24 49.92 mm² 7.8 x 6.4 WQFN (RUK) 20 9 mm² 3 x 3
  • 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
  • 12 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: ±5%; channel-to-channel error: ±5%
  • Ultra-low 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
  • 12 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: ±5%; channel-to-channel error: ±5%
  • Ultra-low 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 use human-machine-interaction, high-performance RGB LED drivers are required. LED animation effects such as flashing, breathing and chasing that greatly improves user experience, and minimal system noise is essential.

The LP50xx device is an 9- or 12-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 ultra-low 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 use human-machine-interaction, high-performance RGB LED drivers are required. LED animation effects such as flashing, breathing and chasing that greatly improves user experience, and minimal system noise is essential.

The LP50xx device is an 9- or 12-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 ultra-low 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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類型 標題 日期
* Data sheet LP50xx 9-, 12-Channel, 12-Bit PWM Ultra-low Quiescent Current I2C RGB LED Drivrs datasheet (Rev. B) 2020年 8月 21日
White paper Common LED Functions and LED Driver Design Considerations 2020年 9月 21日
Technical article Overcoming common design challenges in an UV sterilization box system PDF | HTML 2020年 7月 27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
EVM User's guide LP5012EVM User's Guide 2019年 5月 8日

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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

The LP5012EVM (evaluation module) helps the user evaluate the features of the Texas Instruments LP5012, whichis an I2C bus-controlled, 12-channel, constant-current LED driver. The user’s guide includes set-up instructions, a schematic diagram, a bill of materials, printed-circuit board layout (...)
使用指南: PDF
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開發模組 (EVM) 的 GUI

SLVC713 LP50EVM GUI

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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
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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 (...)
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TSSOP (PW) 24 Ultra Librarian
WQFN (RUK) 20 Ultra Librarian

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