Infineon TLD5099EP User manual

Voltage mode SEPIC 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 SEPIC evaluation

board.

Intended audience

This document is intended for engineers who need to perform measurements and check performance with

TLD5099EP voltage-mode SEPIC 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

8 Maximizing eiciency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

9 Minimizing EM emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Z8F67904874

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 SEPIC

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 SEPIC topology without any additional features

enabled. In this configuration, it can deliver up to 12 W to the load with an eiciency above 85%. Auxiliary

circuits which protect the DC-DC and the load during short to ground, forcing the current to zero, are not

present. The short to ground current is limited to a few amps by the embedded current control loop.

Figure 1 Board picture

Voltage mode SEPIC 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 1 A

Switching frequency VIN = 13.2 V; spread spectrum "on" 400 kHz

Eiciency Measured with a 12 Ω power resistor as load > 85%

Output voltage range Output voltage related to ground 12 V

Output overvoltage protection Output voltage related to ground 16 V

Voltage mode SEPIC 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. Jumper is placed in position 1-2.

In this configuration, 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 12 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 SEPIC 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 SEPIC evaluation kit

TLD5099EP

3 Auto-enable configuration

User guide 5 Rev.2.00

2022-02-04

4 Schematics

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Figure 5 Input filter

Voltage mode SEPIC evaluation kit

TLD5099EP

4 Schematics

User guide 6 Rev.2.00

2022-02-04

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Figure 6 Main power

Voltage mode SEPIC 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 SEPIC evaluation kit

TLD5099EP

5 PCB layout

User guide 8 Rev.2.00

2022-02-04

6 Bill of material

Table 2 Bill of materials

Designator Value Manufacturer Manufacturer order number

C1, C2, C6, C7, C19 10 uF Murata GCM32EC71H106KA03

C9, C26, C36 100 nF AVX 06035C104K4Z2A

C12, C15, C20, C21 4.7 uF TDK CGA6M3X7S2A475K200AE

C13, C14 470 pF Murata GCM1885C1H471JA16

C16, C22 4.7 uF TDK CGA6M3X7S2A475K200AE

C18 220 uF Panasonic EEEFK1H221P

C25 2.2 nF Murata GCM2165C2A222FA16

C27 10 uF TDK CGA4J1X7S1C106K125AC

C29 100 nF TDK CGA4J2X7R2A104M125AE

C30 4.7 uF Kemet C1210C475K5RACAUTO

D1 10 V ON Semiconductor BZX84C10LT1G

D2 PMEG6030EP,115 Nexperia PMEG6030EP,115

D8 BAS16 Infineon Technologies BAS16

L1 10 uH Coilcra XAL6060-103MEB

L2 100 Ω @ 100 MHz TDK MPZ2012S101ATD25

L3, L5 1 kΩ @ 100 MHz TDK MPZ2012S102ATD25

L4 – TDK ACM70V-701-2PL-TL00

L7 22 uH TDK B82477D4223M000

Q1 IPD90P04P4L-04 Infineon Technologies IPD90P04P4L-04

Q2 IPD25N06S4L-30 Infineon Technologies IPD25N06S4L-30

R1 10 kΩ Vishay CRCW060310K0FK

R5 4.7 Ω Vishay CRCW25124R70FK

R6 39 kΩ Vishay CRCW080539K0FK

R8 10 Ω Vishay CRCW060310R0FK

R9 39 mΩ Vishay WSL2512R0390FEA

R10 3.3 kΩ Vishay CRCW08053K30FK

R11, R23 2 kΩ Vishay CRCW08052K00FK

R12 0 Ω Yageo AC0805JR-070RL

R24 3.9 kΩ Vishay CRCW08053K90FK

R25 220 Ω Vishay CRCW0805220RFK

R26 4.7 kΩ Vishay CRCW08054K70FK

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

(table continues...)

Voltage mode SEPIC evaluation kit

TLD5099EP

6 Bill of material

User guide 9 Rev.2.00

2022-02-04

Table 2 (continued) Bill of materials

Designator Value Manufacturer Manufacturer order number

X5 TSM-103-01-S-SV Samtec TSM-103-01-S-SV

X20 D3082-05 Harwin D3082-05

Voltage mode SEPIC evaluation kit

TLD5099EP

6 Bill of material

User guide 10 Rev.2.00

2022-02-04

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