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LP5569

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具有引擎控制和電荷泵的九通道 I2C RGB LED 驅動器

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LP5569

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 9 LED current per channel (mA) 22.5 LED configuration Parallel Program memory Yes Topology Charge pump, Current Sink Programmable ramp control Yes Vin (min) (V) 2.5 Vin (max) (V) 5.5 Iout (max) (A) 0.23 Features Analog/PWM mixed dimming, Constant current, Current control, Direct PWM dimming, I2C control, Power-save mode, Programmable lighting engines Iq (typ) (mA) 0.002 Shutdown current (ISD) (typ) (µA) 0.2 Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 9 LED current per channel (mA) 22.5 LED configuration Parallel Program memory Yes Topology Charge pump, Current Sink Programmable ramp control Yes Vin (min) (V) 2.5 Vin (max) (V) 5.5 Iout (max) (A) 0.23 Features Analog/PWM mixed dimming, Constant current, Current control, Direct PWM dimming, I2C control, Power-save mode, Programmable lighting engines Iq (typ) (mA) 0.002 Shutdown current (ISD) (typ) (µA) 0.2 Operating temperature range (°C) -40 to 85 Rating Catalog
WQFN (RTW) 24 16 mm² 4 x 4
  • Supply Voltage Range: 2.5 V–5.5 V
  • Nine High-Accuracy Current Sinks
    • 25.5 mA Maximum per Channel
    • 8-Bit Individual Current Control
    • 12-Bit 20-kHz Internal Individual PWM Control Without Audio Noise
  • Three Programmable LED Engines
    • Independent Illumination Control Without Active Microcontroller Control
    • Synchronization Among Multiple Devices
    • Up to 256 Instructions in SRAM Memory for Storing Sequences of Lighting Patterns
    • LP5523- and LP55231-Device-Compatible Command Set
  • Flexible Dimming Control
    • I2C Dimming Control
    • PWM Direct-Input Dimming
    • PWM Input Frequency: 100-Hz to 20-kHz
  • Adaptive High-Efficiency Charge-Pump Control for Driving High-VF LEDs With Low Battery Voltage
  • Master Fader Control Allows Dimming of Multiple LEDs by Writing to Only One Register to Reduce the I2C Bus Traffic
  • 2-µA Low Standby Current and 10-µA in Automatic Power-Save Mode When LEDs Are Inactive
  • POR, UVLO, and TSD Protection
  • Supply Voltage Range: 2.5 V–5.5 V
  • Nine High-Accuracy Current Sinks
    • 25.5 mA Maximum per Channel
    • 8-Bit Individual Current Control
    • 12-Bit 20-kHz Internal Individual PWM Control Without Audio Noise
  • Three Programmable LED Engines
    • Independent Illumination Control Without Active Microcontroller Control
    • Synchronization Among Multiple Devices
    • Up to 256 Instructions in SRAM Memory for Storing Sequences of Lighting Patterns
    • LP5523- and LP55231-Device-Compatible Command Set
  • Flexible Dimming Control
    • I2C Dimming Control
    • PWM Direct-Input Dimming
    • PWM Input Frequency: 100-Hz to 20-kHz
  • Adaptive High-Efficiency Charge-Pump Control for Driving High-VF LEDs With Low Battery Voltage
  • Master Fader Control Allows Dimming of Multiple LEDs by Writing to Only One Register to Reduce the I2C Bus Traffic
  • 2-µA Low Standby Current and 10-µA in Automatic Power-Save Mode When LEDs Are Inactive
  • POR, UVLO, and TSD Protection

The LP5569 device is a programmable, easy-to-use 9-channel I2C LED driver designed to produce lighting effects for various applications. The LED driver is equipped with an internal SRAM memory for user-programmed sequences and three programmable LED engines, which allow operation without processor control. Autonomous operation reduces system power consumption when the processor is put in sleep mode.

A high-efficiency charge pump enables the driving of LEDs with high VF, even with 2.5-V input voltage. The LP5569 LED driver maintains good efficiency over a wide operational voltage range by autonomously selecting the best charge-pump gain based on LED forward voltage requirements.

The LP5569 device enters power-save mode when LEDs are not active, lowering idle-current consumption considerably. A flexible digital interface allows the connection of up to eight LP5569 devices with a unique I2C slave address for each device in the same system, which supports synchronization of the lighting effects among all devices.

The LP5569 device is a programmable, easy-to-use 9-channel I2C LED driver designed to produce lighting effects for various applications. The LED driver is equipped with an internal SRAM memory for user-programmed sequences and three programmable LED engines, which allow operation without processor control. Autonomous operation reduces system power consumption when the processor is put in sleep mode.

A high-efficiency charge pump enables the driving of LEDs with high VF, even with 2.5-V input voltage. The LP5569 LED driver maintains good efficiency over a wide operational voltage range by autonomously selecting the best charge-pump gain based on LED forward voltage requirements.

The LP5569 device enters power-save mode when LEDs are not active, lowering idle-current consumption considerably. A flexible digital interface allows the connection of up to eight LP5569 devices with a unique I2C slave address for each device in the same system, which supports synchronization of the lighting effects among all devices.
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類型 標題 日期
* Data sheet LP5569 Nine-Channel I2C RGB LED Driver With Engine Control and Charge Pump datasheet (Rev. A) PDF | HTML 2017年 9月 10日
White paper Common LED Functions and LED Driver Design Considerations 2020年 9月 21日
Application note How to Select a RGB LED Driver 2019年 8月 8日
Technical article Adding imagination to your next-generation appliances PDF | HTML 2018年 11月 12日
Technical article Why you need a programmable lighting engine when designing LED driver circuit PDF | HTML 2018年 5月 29日
Application note LP5569 Lighting Pattern Design 2018年 5月 8日
Technical article Improve the user experience with an LED ring PDF | HTML 2017年 11月 9日
EVM User's guide LP5569EVM User's Guide (Rev. A) 2017年 8月 29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

BOOST-LP5569EVM — 具有引擎控制和電荷泵的 LP5569 九通道 I2C RGB LED 驅動器評估模組

The Texas Instruments LP5569 evaluation module (EVM) helps designers evaluate the operation and performance of the LP5569 nine-LED driver. The LP5569 device is an RGB LED driver that can individually control up to 9 LEDs. The driver has 12-bit PWM and 8-bit current control of each low-side LED (...)
使用指南: PDF
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開發模組 (EVM) 的 GUI

SNVC210 — LP5569EVM GUI

lock = 需要匯出核准 (1 分鐘)
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產品
RGB LED 驅動器
LP5569 — 具有引擎控制和電荷泵的九通道 I2C RGB LED 驅動器
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模擬型號

LP5569 Unencrypted PSpice Transient Model Package (Rev. C)

SNVMBB8C.ZIP (55 KB) - PSpice Model
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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 (...)
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參考設計

TIDA-01559 — 具有近接感測與 LED 動畫的電容式觸控使用者介面參考設計

The TIDA-01559 is a Human Machine Interface (HMI) reference design that uses the MSP430FR2522 MCU and LP5569 device, and can achieve extremely low standby power consumption and offload the resources of the MCU with LED engine control. This solution can be used anywhere a low-power consuming HMI (...)
Design guide: PDF
電路圖: PDF
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