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EVM User's Guide: LP5891EVM
LP5891 48x16 Common Cathode Matrix LED Display
Driver Evaluation Module
Description
The LP5891 evaluation module (EVM) is used to
evaluate the characteristics, operation, and usage
for matrix LED display driver LP5891. The LP5891
is a highly integrated, common cathode matrix LED
display driver with 48 constant current sources and 16
scanning FETs.
SLDU040A – NOVEMBER 2022 – REVISED AUGUST 2024
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Features
•
48 current source channels from 0.2mA to 20mA
•
16 scan line switches with 190mΩ R
•
Ultra-low power consumption
•
High-speed and low electromagnetic interference
(EMI) continuous clock series interface (CCSI)
Applications
•
Mini- / micro-LED matrix products
•
Gaming keyboard with RGB LED backlighting
•
Audio
•
LED luminous panel and local dimming backlight
LP5891 48x16 Common Cathode Matrix LED Display Driver Evaluation
Copyright © 2024 Texas Instruments Incorporated
mixer,
DJ
equipment, and
Description
DS(ON)
broadcast
1
Module
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Table of Contents
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Related Manuals for Texas Instruments LP5891EVM
Summary of Contents for Texas Instruments LP5891EVM
- Page 1 Audio mixer, equipment, and broadcast • LED luminous panel and local dimming backlight SLDU040A – NOVEMBER 2022 – REVISED AUGUST 2024 LP5891 48x16 Common Cathode Matrix LED Display Driver Evaluation Submit Document Feedback Module Copyright © 2024 Texas Instruments Incorporated...
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Page 2: Kit Contents
LP5891 48x16 Common Cathode Matrix LED Display Driver Evaluation SLDU040A – NOVEMBER 2022 – REVISED AUGUST 2024 Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated... - Page 3 Hardware 2 Hardware 2.1 Function Descriptions This section describes the connectors, jumpers and switches on LP5891EVM board. The driver IC side of the LP5891EVM board is shown in Figure 2-1. The LED side of the LP5891EVM board is shown in Figure 2-2.
- Page 4 The LP5891EVM is designed with connectors, jumpers and switches to support device-to-device connection, device-to-host connection and flexible power supply scheme. In addition, there are four switches on the LED side of the LP5891EVM board that enables the evaluation of LED open and short detection and removal functions of the LP5891.
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Page 5: Test Setup
• If the switch is set towards SOUT1TO2, then the serial data output from the first LP5891 chip is sent to J4 port, which is further sent to the second chip if several LP5891EVM are cascaded. • If the switch is set towards R00C, then the red LED in row 0, column 0 is connected in normal state. - Page 6 The LP5891EVM can be powered either by the TMS320F280039C LaunchPad with the USB power (when the current consumption is low) or an external power supply (the LP5891EVM and the TMS320F280039C LaunchPad are powered separately). Single LP5891EVM can be quickly set up and tested by following these steps: 1.
- Page 7 1. Download the code to the TMS320F280039C LaunchPad with TI Code Composer Studio software. 2. For the first LP5891EVM, put the J5 jumper on TP1 5V and EX 5V. Then put the J6 jumper on EX5V and the middle. Set the switch S1 towards SOUT1TO2. These setups are marked with red boxes on the First Device Figure 2-4.
- Page 8 Figure 2-4. 6. (Optional) Connect the SOUT pin of connector J2 on the second LP5891EVM to the IO.17 pin of connector J2 on the TMS320F280039C LaunchPad through an additional 1-pin cable that is marked as the bottom blue line in Figure 2-4.
- Page 9 Hardware Design Files 4 Hardware Design Files 4.1 Schematic The schematic of the EVM is shown below. Designator LP5891EVM_Driversch.SchDoc Designator LP5891EVM_Hardware.SchDoc LP5891EVM_LEDsch.SchDoc LP5891EVM_LEDsch_2.SchDoc Figure 4-1. LP5891EVM Schematic (1 of 4) Line0 Line1 Line2 Line3 Line4 10uF 1µF Line5 AGND Line6...
- Page 10 R21C G31C CAS-120TA CAS-120TA CAS-120TA CAS-120TA Figure 4-3. LP5891EVM Schematic (3 of 4) LP5891 48x16 Common Cathode Matrix LED Display Driver Evaluation SLDU040A – NOVEMBER 2022 – REVISED AUGUST 2024 Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
- Page 11 EAST1616RGBA8 EAST1616RGBA8 EAST1616RGBA8 EAST1616RGBA8 EAST1616RGBA8 Line15 Figure 4-4. LP5891EVM Schematic (4 of 4) SLDU040A – NOVEMBER 2022 – REVISED AUGUST 2024 LP5891 48x16 Common Cathode Matrix LED Display Driver Evaluation Submit Document Feedback Module Copyright © 2024 Texas Instruments Incorporated...
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Page 12: Pcb Layout
4.2 PCB Layout The PCB layout of the EVM is shown below. Figure 4-5. LP5891EVM Top Layer Figure 4-6. LP5891EVM Signal Layer 1 Figure 4-7. LP5891EVM Signal Layer 2 Figure 4-8. LP5891EVM Bottom Layer LP5891 48x16 Common Cathode Matrix LED Display Driver Evaluation SLDU040A –... -
Page 13: Bill Of Materials
Hardware Design Files 4.3 Bill of Materials The bill of materials for LP5891EVM is listed in Table 4-1. Table 4-1. Bill of Materials Designator Qty. Description Part Number Manufacturer C1, C3, C4 CAP, CERM, 1µF, 10V,±20%, X5R, 0402 CC0402MRX5R6BB105... -
Page 14: Revision History
Changed instructions to use LAUNCHXL-F280039C instead of MSP430F5529 LaunchPad......• Changed instructions to use LP589x(-Q1)/TLC698x Sample Code User's Guide ..........LP5891 48x16 Common Cathode Matrix LED Display Driver Evaluation SLDU040A – NOVEMBER 2022 – REVISED AUGUST 2024 Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated... - Page 15 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
- Page 16 www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product.
- Page 17 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
- Page 18 www.ti.com EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
- Page 19 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2023, Texas Instruments Incorporated...
- Page 20 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2024, Texas Instruments Incorporated...
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