Infineon TLD5099EP User manual

Voltage-mode boost to ground evaluation kit
TLD5099EP
About this document
Product description
The TLD5099EP is an AEC qualified DC-DC boost controller, especially designed to drive LEDs.
• Built in diagnosis and protection features
• Pulse width modulator to implement a dimming function with reduced color shiing
• Spread spectrum modulator to improve the EMI performance
Scope and purpose
Scope of this user manual is to provide instructions on the use of TLD5099EP voltage-mode boost to ground
evaluation board.
Intended audience
This document is intended for engineers who need to perform measurements and check performances with
TLD5099EP voltage-mode boost to ground evaluation board.
Table of contents
About this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Quick start procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Auto-enable configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7Eiciency measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8 Maximizing eiciency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
9 Minimizing EM emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Z8F67904849
User guide Please read the sections "Important notice" and "Warnings" at the end of this document Rev.2.00
www.infineon.com 2022-02-04

1 Description
The Evaluation board for medium power application with TLD5099EP configured in voltage-mode boost to
ground topology will be explained. It can be implemented as a DC-DC power supply with constant voltage
output.
The default configuration of the board is voltage-mode boost to ground topology without any additional
features enabled. In this configuration, it can deliver up to 17 W to the load with an eiciency above 91%.
Note: The board is not protected against output short circuits. If protection is needed, place a 500 mA fast
blow fuse in series with the positive power output terminal.
Figure 1 Board picture
Voltage-mode boost to ground evaluation kit
TLD5099EP
1 Description
User guide 2 Rev.2.00
2022-02-04

Figure 2 Simplified schematic
Table 1 Performance summary
Parameter Conditions Value
Input supply voltage Parameter degradation below 6.5 V 8 V to 27 V
Down to 6.5 V for less than 2 s
Maximum output current Resistive load 350 mA
Switching frequency VIN = 13.2 V 400 kHz
Eiciency Measured with a 139 Ω power resistor as load > 91%
Output voltage range Output voltage related to ground 48 V
Output overvoltage
protection
Output voltage related to ground 60 V
Voltage-mode boost to ground evaluation kit
TLD5099EP
1 Description
User guide 3 Rev.2.00
2022-02-04

2 Quick start procedure
The default configuration of the board has all additional features disabled. The jumper is placed in position
1-2. In this configuration the ENABLE signal must be applied on X18 (max. 45 V). If another output voltage
is required,change the values of the voltage divider resistors R24, R25, and R26 according to the following
equation:
VOUT
R24 +R25 +R26 ∙ R25 =VREF (1)
where VOUT is the desired output voltage and VREF = 300 mV is the feedback reference voltage. Correct device
functioning is achieved if voltages VFBH and VFBL on both terminals of R25 are greater than 3 V with respect to
ground.
Attention:On this board VOUT is set to 48 V by default. Increasing VOUT over the default level may damage
some components irreversibly.
The default configuration is depicted below:
Figure 3 Default configuration of the board
Voltage-mode boost to ground evaluation kit
TLD5099EP
2 Quick start procedure
User guide 4 Rev.2.00
2022-02-04

3 Auto-enable configuration
By placing the jumper X5 on position 2-3, the device starts without any external enable signal because pin EN
(ENABLE) is connected directly to the positive rail (see Schematics for details).
Figure 4 Auto-enable configuration
Voltage-mode boost to ground evaluation kit
TLD5099EP
3 Auto-enable configuration
User guide 5 Rev.2.00
2022-02-04

4 Schematics
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Voltage-mode boost to ground evaluation kit
TLD5099EP
4 Schematics
User guide 6 Rev.2.00
2022-02-04

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Voltage-mode boost to ground evaluation kit
TLD5099EP
4 Schematics
User guide 7 Rev.2.00
2022-02-04

5 PCB layout
Figure 7 PCB layout top view
Figure 8 PCB layout bottom view
Voltage-mode boost to ground evaluation kit
TLD5099EP
5 PCB layout
User guide 8 Rev.2.00
2022-02-04

6 Bill of material
Table 2 Bill of material
Designator Value Manufacturer Manufacturer order
number
C1, C2, C6, C7, C19 10 uF Murata GCM32EC71H106KA03
C9, C26, C36 100 nF AVX 06035C104K4Z2A
C13, C14 470 pF Murata GCM1885C1H471JA16
C18 220 uF Panasonic EEEFK1H221P
C20, C21, C22, C23, C34, C35 4.7 uF TDK CGA6M3X7S2A475K200AE
C25 1 nF TDK CGA4F2X7R2A102M085AE
C27 10 uF TDK CGA4J1X7S1C106K125AC
C29 47 nF Kemet C0805C473J3GACAUTO
D1 10 V ON Semiconductor BZX84C10LT1G
D2 PMEG6030EP,115 Nexperia PMEG6030EP,115
L1 3.3 uH Coilcra MSS7341T-332NL
L2 100 Ω @ 100 MHz TDK MPZ2012S101ATD25
L3, L5 1 kΩ @ 100 MHz TDK MPZ2012S102ATD25
L4 – TDK ACM70V-701-2PL-TL00
L6 47 uH TDK SPM10054T-470M-HZ
Q1 IPD90P04P4L-04 Infineon Technologies IPD90P04P4L-04
Q2 IPD25N06S4L-30 Infineon Technologies IPD25N06S4L-30
R1 10 kΩ Vishay CRCW060310K0FK
R5 2.2 Ω Vishay CRCW20102R20FK
R6 47 kΩ Vishay CRCW080547K0FK
R8 10 Ω Vishay CRCW060310R0FK
R9 33 mΩ Vishay WSHM2818R0330FEA
R10 1 kΩ Vishay CRCW08051K00FK
R11 2 kΩ Vishay CRCW08052K00FK
R12 10 kΩ Vishay CRCW080510K0FK
R24, R26 12 kΩ Vishay CRCW080512K0FK
R25 150 Ω Vishay CRCW0805150RFK
U1 TLD5099EP Infineon Technologies TLD5099EP
X1, X14, X16 Solder Jumper 2 Pins – Solder Jumper 2 Pins
X2, X15, X18 1935776 Phoenix Contact 1935776
X3, X4, X8, X21 5001 Keystone 5001
X5 TSM-103-01-S-SV Samtec TSM-103-01-S-SV
X20 D3082-05 Harwin D3082-05
Voltage-mode boost to ground evaluation kit
TLD5099EP
6 Bill of material
User guide 9 Rev.2.00
2022-02-04

7Eiciency measurements
Figure 9 Eiciency vs. input voltage
This eiciency performance has been obtained with:
Table 3 Parameters influencing eiciency
Output load 139 Ω power resistor
EMI filter Totally bypassed by closing the jumpers X1, X14 and X16
Eiciency performances can be increased, refer to Maximizing eiciency.
Voltage-mode boost to ground evaluation kit
TLD5099EP
7 Eiciency measurements
User guide 10 Rev.2.00
2022-02-04

8 Maximizing eiciency
This evaluation board has been designed to reach a fair compromise between eiciency performance and EM
emissions compliance.
Nevertheless, if the maximum eiciency is needed, the following actions are suggested:
1. Remove the snubber circuit consisting of R5 and C25 or choose a lower value for the capacitor C25 (for
example 470 pF)
2. Bypass the whole EMI filter by bridging the jumpers X1, X14 and X16
3. Bypass the output ferrite beads L3 and L5
4. Replace the main inductor L6 with one that boasts a lower parasitic DC resistance, for example
• Vishay IHLP6767GZER470M8A
• Bourns SRP1770TA-470M
5. Bypass gate resistor R8
Voltage-mode boost to ground evaluation kit
TLD5099EP
8 Maximizing eiciency
User guide 11 Rev.2.00
2022-02-04

9 Minimizing EM emissions
This evaluation board has been designed to reach a fair compromise between eiciency performance and EM
emissions compliance. Furthermore, this evaluation board can fulfill the class V of the CISPR25 in conducted
emissions from 150 kHz to 108 MHz.
Nevertheless, if the minimum EM emission is required, the following actions should be considered:
1. Choose a higher value for the capacitor C25 (for example 2.2 nF)
2. Include the whole EMI filter by removing bridges from the jumpers X1, X14 and X16
3. Replace the 10 Ω resistor R8 with a higher value such as 22 Ω or 33 Ω
4. Replace the main inductor L6 with a shielded one (for example the Cyntec VCHE106G-470MS6) and
connect the shield to ground
5. With a short piece of wire connect the CHASSIS TERMINAL to the test ground plane as close as possible
to where the board is placed
Voltage-mode boost to ground evaluation kit
TLD5099EP
9 Minimizing EM emissions
User guide 12 Rev.2.00
2022-02-04

Revision history
Document
version
Date of release Description of changes
Rev.2.00 2022-02-04 Second release related to evalboard S01_P01
• Editorial changes and rephrasing for clarity
• Updated all figures
• Rearranged connectors on evalboard
• Added ground bar on evalboard
Rev.1.00 2020-01-29 First release related to evalboard S00_P00
Voltage-mode boost to ground evaluation kit
TLD5099EP
Revision history
User guide 13 Rev.2.00
2022-02-04

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Edition 2022-02-04
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