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EVM WARNINGS AND RESTRICTIONS

It is important to operate this EVM within the input voltage range of 1.6 V and 3.6 V and the
output voltage range of 1.6 V and 3.6 V.

Exceeding the specified input range may cause unexpected operation and/or irreversible
damage to the EVM. If there are questions concerning the input range, please contact a TI
field representative prior to connecting the input power.

Applying loads outside of the specified output range may result in unintended operation and/or
possible permanent damage to the EVM. Please consult the EVM User’s Guide prior to
connecting any load to the EVM output. If there is uncertainty as to the load specification,
please contact a TI field representative.

During normal operation, some circuit components may have case temperatures greater than
85

°

C. The EVM is designed to operate properly with certain components above 85

°

C as long

as the input and output ranges are maintained. These components include but are not limited
to linear regulators, switching transistors, pass transistors, and current sense resistors. These
types of devices can be identified using the EVM schematic located in the EVM User’s Guide.
When placing measurement probes near these devices during operation, please be aware
that these devices may be very warm to the touch.

Mailing Address:

Texas Instruments
Post Office Box 655303
Dallas, Texas 75265

Copyright 

 2004, Texas Instruments Incorporated

Summary of Contents for TPS2231EVM

Page 1: ...July 2004 PMP Systems Power User s Guide SLVU113...

Page 2: ...ute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual pro...

Page 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...

Page 4: ...tput If there is uncertainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than 85 C The EVM...

Page 5: ...ntation From Texas Instruments TPS2231 ExpressCardt Power Interface Switch data sheet SLVS536 Trademark ExpressCard is a trademark of the Personal Computer Memory Card Interna tional Association PCMCI...

Page 6: ...Contents vi the user at his own expense will be required to take whatever measures may be required to correct this interference...

Page 7: ...3 4 Features 3 3 3 4 1 Input and Output Capacitors 3 3 3 4 2 LEDs 3 3 3 4 3 Clock Oscillator 3 3 3 4 4 ExpressCard Socket 3 3 4 Bill of Materials 4 1 4 1 Bill of Materials 4 2 5 EVM Schematic and Layo...

Page 8: ...Contents viii...

Page 9: ...ibes the setup and operation of the TPS2231 evaluation module EVM HPA074 Information and instruction presented throughout this document assumes user familiarity with the data sheet of the TPS2231 Expr...

Page 10: ...1 2...

Page 11: ...struments Incorporated The EVM has been designed to be simple and straight forward for users to evaluate the TPS2231 device with all the necessary external components and test points An ExpressCard co...

Page 12: ...2 2...

Page 13: ...3 1 EVM Operation This chapter describes the setup and configuration of the TPS2231 EVM Topic Page 3 1 Setup 3 2 3 2 Slide Switches 3 2 3 3 Test Points 3 2 3 4 Features 3 3 Chapter 3...

Page 14: ...1 S6 RCLKEN 1 3 3 Test Points All of the test points on the HPA074 EVM are listed in the following table Test Points Description TP1 TP11 TP20 Ground GND TP2 Test point for TPS2231 AUXIN pin TP3 Test...

Page 15: ...alled on the HPA074 EVM to indicate the states of the three voltage outputs and the OC flag When there is an overcurrent condition at any of the internal power switches of the TPS2231 D1 will be turne...

Page 16: ...3 4...

Page 17: ...4 1 Bill of Materials This chapter contains the bill of materials for the TPS2231EVM Topic Page 4 1 Bill of Materials 4 2 Chapter 4...

Page 18: ...P2T slide PC mount 200 mA TH EG1218 E_Switch 3 TP1 TP11 TP20 Test point black 1 mm TH 240 333 Farnell 17 TP2 TP3 TP4 TP5 TP6 TP7 TP8 TP9 TP10 TP12 TP13 TP14 TP15 TP16 TP17 TP18 TP19 Test point red 1 m...

Page 19: ...5 1 EVM Schematic and Layout This chapter contains the schematic and layout for the TPS2231EVM Topic Page 5 1 Schematic 5 2 5 2 Layout 5 3 Chapter 5...

Page 20: ...Schematic 5 2 5 1 Schematic Figure 5 1 TPS2231EVM Schematic Diagram...

Page 21: ...Layout 5 3 EVM Schematic and Layout 5 2 Layout Figure 5 2 Top Assembly Layer Figure 5 3 Bottom Assembly Layer...

Page 22: ...5 4...

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