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Texas Instruments TPS61042EVM-226, Руководство пользователя, Страница: 9 / 22

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Texas Instruments TPS61042EVM-226 Скачать руководство пользователя страница 9

1-1

Introduction

 

This chapter contains background information for the TPS61042 and support
documentation for the TPS61042EVM–226 evaluation module.

Topic

Page

1.1

Background

1-2

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Chapter 1

Содержание TPS61042EVM-226

Страница 1: ...September 2002 PMP EVMs User s Guide TPS61042EVM 226 PCB 24...

Страница 2: ...t that any license either express or implied is granted under any TI patent right copyright mask work right or other TI intellectual property right relating to any combination machine or process in wh...

Страница 3: ...handling or use of the goods Please be aware that the products received may not be regulatory compliant or agency certified FCC UL CE etc Due to the open construction of the product it is the user s r...

Страница 4: ...inty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than 60 C The EVM is designed to operate p...

Страница 5: ...oard Layout Chapter 4 Schematic and Bill of Materials Related Documentation From Texas Instruments TPS61042 data sheet SLVS439 If You Need Assistance Contact your local TI sales representative FCC War...

Страница 6: ......

Страница 7: ...2 2 2 Analog Dimming With PWM Voltage 2 3 2 2 3 PWM Dimming Using CTRL 2 4 2 3 Setup 2 4 3 Board Layout 3 1 3 1 Layout 3 2 4 Schematic and Bill of Materials 4 1 4 1 Schematic 4 2 4 2 Bill of Material...

Страница 8: ...Contents...

Страница 9: ...This chapter contains background information for the TPS61042 and support documentation for the TPS61042EVM 226 evaluation module Topic Page 1 1 Background 1 2 Chapter 1...

Страница 10: ...EDs It may also be modified to deliver a higher or lower output current to the LEDs Refer to the data sheet for more information on adjusting the rated output current The EVM includes a CTRL pin and a...

Страница 11: ...This chapter describes how to properly connect set up and use the TPS61042EVM 226 Topic Page 2 1 Input Output Connections 2 2 2 2 EVM Operation 2 2 2 3 Setup 2 4 Chapter 2...

Страница 12: ...device The TPS61042 has built in overvoltage protection to keep the EVM from being damaged under a no load condition This EVM is designed to accommodate several LED dimming techniques Because of this...

Страница 13: ...e amount of allowable ripple on the converted analog signal The converted analog voltage is then injected into the FB pin of the TPS61042 as in the Analog Dimming with Analog Voltage method described...

Страница 14: ...x is the maximum desired output current The reference designators correspond to the EVM schematic shown in Chapter 4 R1 V ref Io_max For an output current of 20 mA R1 12 5 2 3 Setup After the EVM has...

Страница 15: ...This chapter provides the TPS61042EVM 226 board layout and illustrations Topic Page 3 1 Layout 3 2 Chapter 3...

Страница 16: ...the TPS61042EVM 226 PWB The nodes with a high switching frequency are short and are isolated from the noise sensi tive feedback circuitry Careful attention has been given to the routing of high freque...

Страница 17: ...Layout Figure 3 3 Bottom Layer Routing...

Страница 18: ......

Страница 19: ...This chapter provides the TPS61042EVM 226 schematic and bill of materials Topic Page 4 1 Schematic 4 2 4 2 Bill of Materials 4 3 Chapter 4...

Страница 20: ...Schematic 4 1 Schematic...

Страница 21: ...D5 Diode LED white 30 mA 1210 Lumex SML LX2832UWC TR 3 J1 J2 J3 Header 2 pin 100 mil spacing 36 pin strip 0 100 x 2 Sullins PTC36SAAN 1 J4 Header 3 pin 100 mil spacing 36 pin strip 0 100 x 3 Sullins P...

Страница 22: ......

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