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TLD5191IVREG-EVAL evaluation board
User Manual
About this document
Board description
TLD5191: 4 switches buck boost DC-DC controller designed for automotive applications
•
Constant current (LED) and constant voltage regulation
•
High power, high efficiency buck-boost architecture
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Embedded PWM engine for digital dimming
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EMC optimized device: Spread spectrum
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Scope and purpose
Scope of this user manual is to provide to the audience instructions on usage of the TLD5191ES device evaluation
board TLD5191IVREG-EVAL schematic version S02 PCB version P01.
The TLD5191IVREG-EVAL is an evaluation platform for the TLD5191ES, which can work as buck-boost LED driver,
or as a voltage regulator.
Figure 1
TLD5191IVREG-EVAL device evaluation board
Intended audience
Hardware engineers.
User Manual
www.infineon.com
Please read the Important Notice and Warnings at the end of this document
page 1 of 14
Rev.1.00
2021-04-13
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Table of Contents
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Summary of Contents for Infineon TLD5191IVREG-EVAL
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Page 1: About This Document
Scope of this user manual is to provide to the audience instructions on usage of the TLD5191ES device evaluation board TLD5191IVREG-EVAL schematic version S02 PCB version P01. The TLD5191IVREG-EVAL is an evaluation platform for the TLD5191ES, which can work as buck-boost LED driver, or as a voltage regulator. -
Page 2: Table Of Contents
TLD5191IVREG-EVAL evaluation board User Manual Table of contents Table of contents About this document ........................1 Table of contents ........................2 Description ..........................3 Quick start procedure ......................4 Setup as LED driver ..........................4 3.1.1 Embedded PWM engine ........................5 Set up as voltage regulator ........................ -
Page 3: Description
The TLD5191ES provides digital and analog dimming control and one flag for diagnostic. The TLD5191IVREG-EVAL is an evaluation platform for the TLD5191ES as LED driver or voltage regulator. The default configuration is constant current LED driver with 1.5 A maximum output current. The output current can be increased up to 6 A by changing resistor RSHO. -
Page 4: Quick Start Procedure
About this document Quick start procedure Step-by-step procedures are laid out for setup and running the TLD5191IVREG-EVAL in all available configurations. In all configurations solder jumper J_EN has to be closed in order to enable the device via input supply lines. -
Page 5: Embedded Pwm Engine
TLD5191IVREG-EVAL evaluation board User Manual About this document Adjust I via RSET (>150 mA suggested for better accuracy and transient response) Adjust PWM duty cycle via RPWMI if enabled (see Chapter 3.1.1). NOTE: If the output voltage is below 6V (i.e. load of just one LED) it is recommended to close JO2 to bypass the PMOS for PWM dimming in order to avoid excessive power dissipation on the PMOS. -
Page 6: Set Up As Voltage Regulator
TLD5191IVREG-EVAL evaluation board User Manual About this document Set up as voltage regulator To configure the board as voltage regulator the following jumpers needs to be configured: Table 2 Jumper position Jumper name Condition Meaning J_PWMI Closed Enable on board PWMI setting... -
Page 7: Operating Range
TLD5191IVREG-EVAL evaluation board User Manual About this document Operating range The TLD5191IVREG-EVAL has very high efficiency, so it can deliver up to 60 W at the output without a heat sink at T = 25°C, V = 12 V. Please note that the module does not implement thermal protection, so ensure proper cooling when output power exceeds 60W or input voltage decrease below 9V. -
Page 8: Electrical Characteristics
TLD5191IVREG-EVAL evaluation board User Manual About this document Electrical characteristics Table 3 TLD5191IVREG-EVAL version S02 P01 – electrical characteristics Value Parameter Symbol Unit Note/Test Condition Min. Typ. Max. Minimum value set by resistor divider on the Input voltage – EN/INUVLO pin 2.15... -
Page 9: Efficiency Measurements
TLD5191IVREG-EVAL evaluation board User Manual About this document 6 Efficiency measurements The following efficiency measurements has been taken in constant current configuration (LED driver). The efficiency discontinuities are given by the controller mode changes from buck to buck-boost and from buck- boost to boost. - Page 10 TLD5191IVREG-EVAL evaluation board User Manual About this document EMI filters Bypassed by closing solder jumpers JI1 and JO1 Digital dimming Duty cycle set to 100% by closing J_PWMI jumper and by opening J_DIMM jumper Analog dimming Output current set to 1A via RSET trimmer...
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Page 11: Bill Of Material, Layout And Schematic
TLD5191IVREG-EVAL evaluation board User Manual About this document 7 Bill of material, layout and schematic Table 5 Designator Value Footprint Quantity C1, C5, C9, C10, C16, C21 10uF C1210 C2, C46 470nF C1206 C3, C15 470pF C0603 C4, C14 10nF... - Page 12 TLD5191IVREG-EVAL evaluation board User Manual About this document Designator Value Footprint Quantity 2.2kΩ R0603 1kΩ R0805 3.3MΩ R0805 RFREQ 27kΩ R0805 RG1, RG2, RG3, RG4 10Ω R0603 0Ω R0603 RPWMI, RSET, RVOLT Bourns 3266Y-1-203LF RSHO 100mΩ R0612 RSHSW 7mΩ R1206 1.5kΩ...
- Page 13 VOUT VOUT RSHO RSHSW J_FAD RPWMI RVOLT LED_IVCC J_PWMI J_DIMM RSET PWMI VCC_INT...
- Page 14 [No Variations] 2.2k 3.3MEG 22nF 0805 910R GND1 0603 0805 0805 150V D3082-05 D3082-05 Size: Document Name Rel. Rev. 150V TLD5191IVREG_EVAL_S02.SchDoc Author: Date: 26/04/2021 Time: 11:27:25 SVN Revision: Not in version control © Infineon Technologies AG 2021. All Rights Reserved. Sheet...
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Page 15: Revision History
TLD5191IVREG-EVAL evaluation board User Manual About this document 8 Revision history Document Date of release Description of changes version Rev. 1.00 2021-04-13 Initial User Manual User Manual 13 of 14 Rev.1.00 2021-04-13... - Page 16 Infineon Technologies hereby disclaims dangerous substances. For information on the types © 2021 Infineon Technologies AG. any and all warranties and liabilities of any kind in question please contact your nearest Infineon All Rights Reserved. (including without limitation warranties of non- Technologies office.
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