Infineon TLD5542-1HIPOW User Manual
User manual Please read the Important Notice and Warnings at the end of this document Rev.1.0
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TLD5542-1HIPOW_EVAL board
Evaluation board manual
About this document
Scope and purpose
The scope of this user manual is to provide instructions on the use of the TLD5542-1HIPOW-EVAL evaluation
board.
TLD5542-1HIPOW_EVAL board is a 4-switch synchronous buck-boost regulator that demonstrates the highpower capability of the TLD5542-1. The output is adjustable from 5 V to 24 V and the maximum output current is
25 A for up to 300 W power delivery without heatsink.
The switching frequency is 250 kHz and efficiency can go up to 98%.
The board can be configured as current regulator or voltage regulator.
Figure 1 TLD5542-1HI_POW_EVAL device board
Intended audience
Hardware engineers, software engineers, system architects
User manual 2 of 19 Rev.1.0
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TLD5542-1HIPOW_EVAL board
Evaluation board manual
Description
Table of contents
About this document ......................................................................................................................... 1
Table of contents .............................................................................................................................. 2
1 Description .............................................................................................................................. 3
2 Quick start procedure ............................................................................................................... 4
2.1 Setup as current regulator with no microcontroller .............................................................................. 4
2.2 Board set up as voltage regulator with no microcontroller nor PC GUI ................................................ 6
2.3 Board set up as voltage/current regulator with PC GUI ......................................................................... 7
3 Infineon μIO stick and Infineon Toolbox ..................................................................................... 9
3.1 Install and launch Config Wizard .......................................................................................................... 10
4 Board control with PC GUI ........................................................................................................11
4.1 Basic user interface ............................................................................................................................... 11
4.2 Engineering user interface .................................................................................................................... 12
5 Operating range and power derating ........................................................................................14
6 Electrical characteristics ..........................................................................................................15
7 Bill of material, PCB layout and schematic .................................................................................16
8 List of references .....................................................................................................................17
Revision history ...............................................................................................................................18
User manual 3 of 19 Rev.1.0
2021-03-04
TLD5542-1HIPOW_EVAL board
Evaluation board manual
Description
1 Description
The H-bridge architecture is amongst the most efficient buck-boost topologies for high current applications. The
TLD5542-1 provides complete control and diagnostics through the SPI interface. The TLD5542-1 can also be used
in applications without microcontroller because of the limp home mode.
The TLD5542-1HIPOW_EVAL demonstrates the high-power capability of the TLD5542-1 as current or voltage
regulator.
The default configuration is adjustable voltage regulator with 25 A maximum output current. By reconfiguring
few solder jumps, the board becomes a current regulator for battery or supercapacitors charger applications.
The board can be controlled by the PC GUI via the Infineon µIO stick (see Chapter 4).
Figure 2 TLD5542-1 as battery charger
Figure 3 TLD5542-1 as voltage regulator
There are 2 trimmers, RVOLT and RSET, to easily adjust output voltage and output current in the entire range
(see table 6).
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TLD5542-1HIPOW_EVAL board
Evaluation board manual
Quick start procedure
2 Quick start procedure
Below, step by step procedures are laid out for setup and running the TLD5542-1HIPOW_EVAL in all available
configurations.
Installation procedure for PC GUI (graphical user interface) and μIO stick interface is described in Chapter 4.
2.1 Setup as current regulator with no microcontroller
Setup of the board as simple current regulator, without a microcontroller connection and without µIO stick nor
PC GUI.
The device is configured in limp home. All the registers are set to their default value and the analog dimming is
provided by the voltage on the SET pin which is adjustable with RSET trimmer.
Table 1 Jumper reference and setup for current regulator
Jumper reference
Status
Description
JV1
OPEN
Bypass output current shunt resistor
JV2
OPEN
Disconnect voltage regulator feedback voltage divider
JI1
CLOSE
Connect current shunt
JVDD
CLOSE
Connect Internal 5V IVCC to VDD
J1
CLOSE
Bypass input current shunt resistor
In order to run the board in this configuration
1. Configure solder jumper for LED driver configuration as in Figure 4
2. Connect LHI (limp home) and J_PWMI jumpers
Figure 4 Jumpers to be set for current regulator mode no µC
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TLD5542-1HIPOW_EVAL board
Evaluation board manual
Quick start procedure
3. Connect the load (Note that the output current can be as high as 30 A if SET is adjusted to maximum)
4. Connect a 12 V power supply to the V
IN
connector
5. Rotate RSET trimmer completely anti-clockwise to lower the output current to the minimum
6. Connect the EN jumper to start providing output current to the load
7. Adjust I
OUT
with RSET (output current should be higher than 2 A for better transient response)
Figure 5 Connect power supply and load, adjust output current
Warning:
1. If the load is a battery or a supercapacitor, do not use PWMI to stop output current, use EN instead.
Otherwise, the device will affect a startup without soft-start assistance sinking high current from
the charging battery at the V
OUT
connector.
2. The board is not reverse protected at the input nor at the output, if a battery is connected with
reverse polarity the board or the battery may catch fire.
Correct start-up sequence, to provide current at the load is:
• Set EN to ON with PWMI kept to OFF (blue LED on the PCB turns ON)
• Set desired analog dimming level by using SET pin if limp home mode, otherwise operate via SPI
• Set PWMI to ON
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TLD5542-1HIPOW_EVAL board
Evaluation board manual
Quick start procedure
2.2 Board set up as voltage regulator with no microcontroller nor PC GUI
The following describes how to setup the board as a simple voltage regulator without PC GUI. No
microcontroller connection and no µIO stick is present.
Table 2 Jumper reference and setup for voltage regulator
Jumper reference
Status
Description
JV1
CLOSE
Bypass output current shunt resistor
JV2
CLOSE
Connect voltage regulator feedback voltage divider
JI1
OPEN
Disconnect current shunt from FBL
JVDD
CLOSE
Connect Internal 5V IVCC to VDD
J1
CLOSE
Bypass input current shunt resistor
1. Configure all solder jumpers as shown in Figure 6
2. Connect J_EN, LHI and PWMI jumpers
Figure 6 Jumpers to be set for voltage regulator mode no µC
3. Connect a 12 V power supply to the V
IN
connector
4. Rotate RSET trimmer completely clockwise (100% analog dim, improves transient response and accuracy)
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TLD5542-1HIPOW_EVAL board
Evaluation board manual
Quick start procedure
Figure 7 Connect power supply, turn RSET to maximum and adjust V
OUT
with RVOLT
5. Rotate RVOLT trimmer to obtain the desired V
OUT
6. Connect the load to V
OUT
2.3 Board set up as voltage/current regulator with PC GUI
The TLD5542-1 HIPOW_EVAL can be controlled by the PC GUI via a µIO stick. All the plug jumpers have to be
removed, or the µIO will not be able to control the TLD5542-1 properly.
1. Set solder jumpers for voltage (Chapter 2.1) or current (Chapter 2.2) regualtor
2. Remove jumper plugs J_LHI, J_PWMI, J_EN
Figure 8 Control with μIO stick board preparation
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