Texas Instruments LP5813EVM Manual de usuario
EVM User's Guide: LP5813EVM LP5812EVM
LP5813-12 Evaluation Module
Description
The LP5813/12 Evaluation Module showcases all the
features of the LP5813 and LP5812 4 × 3 matrix RGB
LED driver with autonomous control. The difference
between 2 devices is with or without synchronous
boost function. Both LP5813 and LP5812 are placed
on 1 board, please select the device which is needed
to be evaluated by USB2ANY connector and jumper
setting. And please select the right EVM version
according to different package (WSON/WCSP). The
graphical user interface or GUI called LP581x GUI
is used to interface with USB to the EVM by the
USB2ANY interface adapter.
Get Started
1. Request the LP5813-12 WCSP/WSON EVM from
ti.com according to the device package.
2. Request the LP5813 and LP5812 data sheet from
ti.com.
3. Download the LP581xGUI from ti.com.
4. Download the comprehensive reference design
files.
Features
• LP5813 Synchronous Boost 4 × 3 Matrix RGB LED
driver with autonomous control
• LP5812 4 × 3 Matrix RGB LED driver with
autonomous control
• I2C input and power supply from USB2ANY
interface adapter
• LP581x GUI is used to control the EVM
Applications
•Portable & wearable electronics: E-Cigarette,
Earbud & Charging case
•Gaming & home entertainment: Smart speaker,
RGB mouse, Video doorbell
•Industrial HMI: EV charger, Factory automation
Hardware Image
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LP5813-12 Evaluation Module 1
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1 Evaluation Module Overview
1.1 Introduction
The LP5813/LP5812EVM can be converted for testing the LP5811/LP5810, which are from the same device
family, by removing the factory-installed device (U1/U2) and replacing with the LP5811/LP5810 counterpart.
When testing the LP5811 device, select the direct mode jumper setting and corresponding tag from the menu on
the GUI start page to start evaluation.
This user’s guide describes the characteristics, setup, and usage of the LP5813/LP5812 evaluation module
(EVM). The LP5813/LP5812EVM helps the user evaluate the features of the Texas Instruments LP5813
synchronous boost 4 × 3 matrix RGB LED driver and LP5812 4 × 3 matrix RGB LED driver, which integrate
autonomous control.
This document covers following topics:
• Hardware setup instructions
• Graphical user interface (GUI) instructions
• Printed-circuit board (PCB) layout drawings
• Schematic diagram
• Bill of materials
1.2 Kit Contents
The LP5813/12EVM kit includes the following materials and is illustrated in Figure 1-1.
• LP5813/LP5812 evaluation module
• USB2ANY interface adapter with ribbon cables and USB cable
Figure 1-1. LP5813/12EVM Kit
1.3 Specification
The evaluation module provides several inputs. The inputs are I2C signal input and power supplies for Vin. Vin is
provided by an external power supply or a USB2ANY interface adapter.
1.4 Device Information
The LP5813-12EVM is used to evaluate the characteristics, operation, and usage for LED driver LP5813/
LP5812. The LP5813 device is a high-performance and small-size device, which integrates synchronous boost
and autonomous engine, with time-cross-multiplexing (TCM) structure. LP5813 can drive up to 12 LED dots with
only 4 output pins. The difference between LP5813 and LP5812 is that LP5812 does not have boost function.
Typical application for LP5813 is shown in Figure 1-2.
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LP5813
OUT0
OUT1
OUT2
SW
OUT3
22 uF
10 uF
1 uH
0.5 V - 5.5 V
GND
OFF
ON
VIN
EN
SCL
SDA
SYNC
VOUT
MCU
VMCU
D0
D1
D2
D3
Red LED
Green LED
Blue LED
4.7kΩ4.7kΩ
Figure 1-2. LP5813 Simplified Schematic
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LP5813-12 Evaluation Module 3
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2 Hardware
2.1 Setup
This section describes how to set up the LP5813-12EVM properly. Items from the following list are required to
begin evaluating the LP5813/LP5812:
• Computer
• LP5813-12EVM
• USB2ANY interface adapter
In the default jumper setting, the board can be evaluated by USB2ANY power directly and does not need an
external power supply. Setup connection is demonstrated in Figure 2-1. The setup procedure is as follows:
1. Connect the USB2ANY with the LP5813-12EVM using the ribbon cable.
2. Make sure all jumpers are properly set under the appropriate operating conditions. See more details in
Jumper Information.
3. Plug the USB cable into the USB port on the computer.
Figure 2-1. Hardware Connection
2.2 Jumper Information
Note
Only one device can be evaluated at a time. Select LP5813/LP5812 by the USB2ANY connector and
jnmper setting.
If LP5813 is under test, then please plug ribbon cable to USB2ANY_13 connector.
If LP5812 is under test, then please plug ribbon cable to USB2ANY_12 connector.
On the default jumper setting, users can evaluate LP5813 under the conditions below:
• Vin is provided by 3.3V from USB2ANY(Don't need external power supply).
• Synchronous boost is enabled.
• 4-SCAN TCM mode (Drive 12 LED dots with 4 outputs).
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Figure 2-2 shows the default jumper settings.
Figure 2-2. Default Jumper Setting
Users can follow the jumper setting instructions below to testthe LP5813/LP5812 under different operating
conditions.
Figure 2-3 shows the jumper setting for LP5813 in Direct mode and enable boost function without external power
supply.
Figure 2-3. LP5813 Direct Mode and Enable Boost without External Power Supply
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LP5813-12 Evaluation Module 5
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Figure 2-4 shows the jumper setting for LP5813 in TCM mode and disable boost function.
Under this condition, the device needs to be powered by Vout instead of Vin.
Figure 2-4. LP5813 4-SCAN TCM Mode and Disable Boost with External Power Supply
Figure 2-5 shows the jumper setting for LP5812 in TCM mode without external power supply.
Figure 2-5. LP5812 4-SCAN TCM Mode without External Power Supply
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Figure 2-6 shows the jumper setting for LP5812 in Direct mode without external power supply
Figure 2-6. LP5812 Direct Mode without External Power Supply
Note
If the user wants to evaluate LP5813, then please connect J13-J16 and disconnect J33-J36. Each
output from LP5813/LP5812 cannot be connected to both J5 and J1. For example, if the user wants to
use Mix-Drive mode with 3-SCAN, and chose OUT3 as direct drive, then please connect OUT3 to J1
and OUT0/OUT1/OUT2 to J5. Please see Figure 2-7 for more details.
Figure 2-7. 3-SCAN Mix-Drive Mode
2.3 Power Supply
If the input current need to be measured, then an external VIN/VCC supply is recommended during evaluation.
1. Connect the USB2ANY to the LP5813-12EVM using the ribbon cable.
2. Connect a 1.8-5.5V external power supply to the VIN_EXT/VCC_EXT terminal (TP1 for LP5813/TP5 for
LP5812) and connect the switching jumper (J2/J4) to VIN_EXT.
3. If the user wants to evaluate LP5813 but disable the boost function, then please provide power supply from
Vout instead of VIN.
4. Plug the USB cable into the USB port on the computer.
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LP5813-12 Evaluation Module 7
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4 Hardware Design Files
4.1 Schematics
Figure 4-1 shows the schematic of LED driver module.
Figure 4-1. Schematic of LED Driver Module
Figure 4-2 shows the schematic of LED Load module.
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LP5813-12 Evaluation Module 9
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