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LP5018 Dataheets PDF



Part Number LP5018
Manufacturers Texas Instruments
Logo Texas Instruments
Description I2C RGB LED Drivers
Datasheet LP5018 DatasheetLP5018 Datasheet (PDF)

Product Folder Order Now Technical Documents Tools & Software Support & Community LP5018, LP5024 SLVSEB8B – OCTOBER 2018 – REVISED OCTOBER 2018 LP50xx 18-, 24-Channel, 12-Bit, PWM Ultralow-Quiescent-Current, I2C RGB LED Drivers 1 Features •1 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 .

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Product Folder Order Now Technical Documents Tools & Software Support & Community LP5018, LP5024 SLVSEB8B – OCTOBER 2018 – REVISED OCTOBER 2018 LP50xx 18-, 24-Channel, 12-Bit, PWM Ultralow-Quiescent-Current, I2C RGB LED Drivers 1 Features •1 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-toChannel 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 2 Applications LED Lighting, Indicator Lights, and Fun Lights for: • Smart Speaker (With Voice Assistant) • Smart Home Appliances • Video Doorbell • Electronic Smart Lock • Smoke and Heat Detector • STB and DVR • Smart Router • Handheld Device 3 Description 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. PART NUMBER LP5018 LP5024 Device Information(1) PACKAGE BODY SIZE (NOM) VQFN (32) 4.00 mm × 4.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. MCU Simplified Schematic VMCU VCC CVCC CVCAP RIREF EN SDA SCL ADDR0 ADDR1 VCAP VCC LP5024 OUT0 OUT1 OUT2 OUT21 IREF GND OUT22 OUT23 VLED 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. LP5018, LP5024 SLVSEB8B – OCTOBER 2018 – REVISED OCTOBER 2018 www.ti.com Table of Contents 1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Description (continued)......................................... 3 6 Pin Configuration and Functions ......................... 4 7 Specifications......................................................... 6 7.1 Absolute Maximum Ratings ...................................... 6 7.2 ESD Ratings.............................................................. 6 7.3 Recommended Operating Conditions....................... 6 7.4 Thermal Information .................................................. 6 7.5 Electrical Characteristics........................................... 7 7.6 Timing Requirements ................................................ 8 7.7 Typical Characteristics .............................................. 9 8 Detailed Description ............................................ 11 8.1 Overview ................................................................. 11 8.2 Functional Block Diagram ....................................... 11 8.3 Feature Description................................................. 11 8.4 Device Functional Modes........................................ 17 8.5 Programming .......................................................... 18 8.6 Register Maps ........................................................ 22 9 Application and Implementation ........................ 38 9.1 Application Information............................................ 38 9.2 Typical Application ................................................. 38 10 Power Supply Recommendations ..................... 41 11 Layout................................................................... 41 11.1 Layout Guidelines ................................................. 41 11.2 Layout Examples.................................


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