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™
OPTIREG
switcher TLS412xD0EPVxx demoboard
Z8F68163134
Preface
Scope and purpose
This document describes the usage of the OPTIREG
switcher TLS412xD0EPVxx family from Infineon Technologies AG. Please also refer to the corresponding
datasheets.
Intended audience
This document is intended for engineers who develop applications.
Table of contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1
General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
™
1.2
1.3
Block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2
Demoboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2
Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3.1
EN selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.3.2
RT selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3.3
FREQ selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3.4
RO and SSON pull-up resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.3.5
Output voltage adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.3.6
Signal adaption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3
Schematic and layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3.1
Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2
Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4
Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5
Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
User manual
www.infineon.com/OPTIREG-switcher
switcher TLS412xD0EPVxx features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Please read the Important Notice and Warnings at the end of this document
™
switcher TLS412xD0EPVxx demoboard for the OPTIREG
™
Rev. 1.1
2020-06-30
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Related Manuals for Infineon OPTIREG TLS412 Series
Summary of Contents for Infineon OPTIREG TLS412 Series
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Page 1: Table Of Contents
™ This document describes the usage of the OPTIREG switcher TLS412xD0EPVxx demoboard for the OPTIREG switcher TLS412xD0EPVxx family from Infineon Technologies AG. Please also refer to the corresponding datasheets. Intended audience This document is intended for engineers who develop applications. -
Page 2: Introduction
™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Introduction Introduction General description ™ The OPTIREG switcher TLS412xD0EPVxx is a family of synchronous step down regulators especially designed for automotive applications. The devices reduce the required amount of external components and thus system cost and board space due to: •... -
Page 3: Optireg ™ Switcher Tls412Xd0Epvxx Features
™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Introduction ™ OPTIREG switcher TLS412xD0EPVxx features • Input voltage from 3.7 V to 35 V • Current capability up to 2.5 A • ±1.5% feedback voltage accuracy in PWM mode • Ultra low current consumption: typically 31 μA •... -
Page 4: Block Diagrams
™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Introduction Block diagrams Enable UVLO Internal Over- supply Bandgap temperature reference shutdown FREQ Control loop + driver Oscillator SYNC PGND SSON Spread spectrum Soft-start ramp generator Reset AGND Figure 1 Block diagram fixed output voltage variants User manual Rev. - Page 5 ™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Introduction Enable UVLO Internal Over- supply Bandgap temperature reference shutdown FREQ Control loop + driver Oscillator SYNC PGND SSON Spread spectrum Soft-start ramp generator Reset AGND Figure 2 Block diagram adjustable variants User manual Rev.
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Page 6: Demoboard
™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Demoboard Demoboard Assembly There are two different demoboard assemblies available. One for the fixed output voltage variants and one for the adjustable variants. They differ only by the resistor configuration around the FB pin. In addition to these two assemblies, there exist two configurations for each product. - Page 7 ™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Demoboard Figure 4 Assembly adjustable output voltage variant in HF configuration User manual Rev. 1.1 2020-06-30...
- Page 8 ™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Demoboard Figure 5 Assembly fixed output voltage variant in LF configuration User manual Rev. 1.1 2020-06-30...
- Page 9 ™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Demoboard Figure 6 Assembly adjustable output voltage variant in LF configuration User manual Rev. 1.1 2020-06-30...
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Page 10: Operating Conditions
™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Demoboard Operating conditions To avoid electrical damage of the demoboard, the values in Table 2 must be maintained. Table 2 Limit values for operation Parameter Symbol Values Unit Note or condition Min. Typ. Max. Board supply voltage –... -
Page 11: Configuration
™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Demoboard Configuration The demoboard can be easily configured via jumpers on the board. The board provides the following configuration options: • connect the enable signal EN to VIN • select the reset undervoltage threshold V and reset delay time t RT,UV,th •... -
Page 12: Rt Selection
™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Demoboard 2.3.2 RT selection Place the jumper as shown in Figure 8 to choose the following • undervoltage reset threshold V RT,UV,th • reset delay time t For settings different from Table 3, change the value of resistor R3. Table 3 JP_RT jumper settings Jumper setting... -
Page 13: Ro And Sson Pull-Up Resistors
™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Demoboard Figure 9 JP_FREQ jumper placement 2.3.4 RO and SSON pull-up resistors The RO and SSON pins can be pulled up to VCC(OUT) by placing the jumpers JP_RO_PU and JP_SSON, respectively, see Figure 10. When placing the jumper on the adjustable variants TLS412xD0EPV make sure to maintain the Operating conditions. -
Page 14: Output Voltage Adjustment
™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Demoboard 2.3.5 Output voltage adjustment For the adjustable variants TLS412xD0EPV the resistor divider consisting of R1 and R2 sets the nominal output voltage level. The default output voltage level for these variants is 6.45 V. To set a different voltage level change the resistor values according to Equation 1. -
Page 15: Signal Adaption
™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Demoboard 2.3.6 Signal adaption For easy signal adaption, for example connecting probes of an oscilloscope, the PCB offers test points. The TP_... label of each test point indicates the probed signal. For further information on the mapping between test points and signals see Schematic. -
Page 16: Schematic And Layout
™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Schematic and layout Schematic and layout Schematic ™ The schematic of the OPTIREG switcher TLS412xD0EPVxx demoboard is available in the following variants: • fixed output voltage variants TLS412xD0EPVxx in HF configuration, see Figure 13 •... - Page 17 ™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Schematic and layout Figure 14 Schematic for fixed output voltage variants in LF configuration Figure 15 Schematic for adjustable variants in HF configuration User manual Rev. 1.1 2020-06-30...
- Page 18 ™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Schematic and layout Figure 16 Schematic for adjustable variants in LF configuration User manual Rev. 1.1 2020-06-30...
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Page 19: Layout
™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Schematic and layout Layout The PCB uses a four layer standard stack-up. The product can also be soldered to double layer boards. However, four layers offer better thermal characteristics. The configuration on this demoboard is comparable to the 2s2p thermal interface situation. - Page 20 ™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Schematic and layout Figure 18 Internal layer 1 User manual Rev. 1.1 2020-06-30...
- Page 21 ™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Schematic and layout Figure 19 Internal layer 2 User manual Rev. 1.1 2020-06-30...
- Page 22 ™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Schematic and layout Figure 20 Bottom layer User manual Rev. 1.1 2020-06-30...
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Page 23: Bill Of Material
™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Bill of material Bill of material ™ The bill of material shows the components on the OPTIREG switcher TLS412xD0EPVxx demoboard. For the mounting condition of each component see the Schematic. Mechanical parts, such as connectors or test-points are not mentioned. - Page 24 ™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Bill of material Table 8 Bill of material LF configuration only (continued) Part Value Package 0 Ω 0603 2.2 kΩ 0603 User manual Rev. 1.1 2020-06-30...
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Page 25: Restrictions
This demoboard offers limited features only for evaluation and testing of Infineon products. The demoboard is not an end product or finished appliance, nor is it intended or authorized by Infineon to be integrated into end products. The demoboard may not be used in any production system. -
Page 26: Revision History
™ OPTIREG switcher TLS412xD0EPVxx demoboard Z8F68163134 Revision history Revision history Revision Date Changes 2020-05-27 Document created 2020-06-30 Added LF and HF variant description User manual Rev. 1.1 2020-06-30... -
Page 27: Disclaimer
Infineon Technologies, All Rights Reserved. given herein in the real application. Infineon Infineon Technologies’ products may not be used in Technologies hereby disclaims any and all warranties any applications where a failure of the product or and liabilities of any kind (including without limitation...
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