Related Manuals for Texas Instruments TPS211 EVM Series
Summary of Contents for Texas Instruments TPS211 EVM Series
- Page 1 TPS211xEVM Power Multiplexer Evaluation Module User’s Guide November 2002 PMP EVMs SLLU054...
- Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
- Page 3 EVM IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety measures typically found in the end product incorporating the goods.
- Page 4 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 2002, Texas Instruments Incorporated...
- Page 5 Chapter 4- Board Layout The information in a caution or a warning is provided for your protection. Please read each caution and warning carefully. Related Documentation From Texas Instruments TPS2110/1 Autoswitching Power Mux- data sheet (SLVS443) TPS2112/3 Autoswitching Power Mux- data sheet (SLVS446)
- Page 6 Trademarks Electrostatic Sensitive Devices This EVM contains components that can potentially be damaged by electrostatic discharge. Always transport and store the EVM in its supplied ESD bag when not in use. Handle using an antistatic wristband. Operate on an antistatic work surface. For more information on proper handling, refer to SSYA008.
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Page 7: Table Of Contents
Contents Contents Introduction ..............EVM Setup . - Page 8 Contents Figures Basic EVM Setup ............. TPS211xEVM Schematic .
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Page 9: Introduction
Chapter 1 Introduction The TPS211x EVM is an evaluation module for the Texas Instruments TPS211x family of two-input, one-output power multiplexers. These multiplexers enable seamless transition between two power supplies, each operating at 2.8 V–5.5 V and delivering up to 1 A. EVM configurations are available for the TPS2110 through TPS2115. -
Page 11: Evm Setup
Chapter 2 EVM Setup This chapter describes the proper setup of the TPS211xEVM for use in device evaluations. Topic Page Setting Up the EVM ......... . . Current-Limit Adjustment . -
Page 12: Setting Up The Evm
Setting Up the EVM 2.1 Setting Up the EVM The user is encouraged to read the applicable TPS211x data sheet before using the EVM. The following test equipment is recommended: Storage oscilloscope Current probe Two adjustable power supplies, 0V – 6 V @ 2-A Volt-Ohm meter A passive or active load Figure 2-1 shows the EVM test set up. -
Page 13: Automatic Switching Modes
Manual Switching Mode (TPS2110/1/4/5 Only) 2.3 Manual Switching Mode (TPS2110/1/4/5 Only) Potentiometer R2 and header J4 have no effect upon the operation of the manual switching mode. Some products like digital cameras and palm computers that receive power from an internal battery or from a docking station can take advantage of the manual-switching feature. -
Page 14: Mode 2 Automatic Switching (Tps2110/1/2/3 Only)
Output Voltage Holdup 2.4.2 Mode 2 Automatic Switching (TPS2110/1/2/3 Only) In Mode 2 automatic switching, OUT connects to IN1 if the voltage at IN1 is sufficiently high, otherwise OUT connects to the higher of IN1 and IN2. The threshold at which IN1 is selected corresponds to approximately 0.8 V at test point TP3. -
Page 15: Schematic And Bill Of Materials
Chapter 3 Schematic and Bill of Materials The TPS211xEVM schematic and bill of materials are provided in this chapter. Topic Page EVM Configurations ......... . . Schematic . -
Page 16: Evm Configurations
EVM Configurations 3.1 EVM Configurations Table 3-1. Available EVM Configurations Switching Modes Current-Limit Adjustment Current-Limit Adjustment Switch Status Switch Status Device Designator Range Output Automatic Manual SLVP227-001 TPS2110 0.31 A–0.75 A SLVP227-002 TPS2111 0.63 A–1.25 A SLVP227-003 TPS2112 0.31 A–0.75 A SLVP227-004 TPS2113 0.63 A–1.25 A... -
Page 17: Bill Of Materials
Bill of Materials 3.3 Bill of Materials Table 3-2. SLVP227 Bill of Materials Quantity -001 -002 -003 -004 -005 -006 Ref Des Description MFG PART # Size IC, Power mux Texas TPS2110PW PW-8 Instruments IC, Power mux Texas TPS2111PW PW-8 Instruments IC, Power mux Texas... -
Page 18: Slvp227 Bill Of Materials
Bill of Materials Table 3-2. SLVP227 Bill of Materials (Continued) Quantity -001 -002 -003 -004 -005 -006 Ref Des Description MFG PART # Size PCB, SLVP227A American Bumper, rubber, SPC2568 PSA, black Technology Shorting jumper, 929955-06 10 µ-inch gold... -
Page 19: Board Layout
Chapter 4 Board Layout This chapter describes the TPS211xEVM board layout and presents some component placement considerations. Topic Page Layout Considerations ........Board Layout... -
Page 20: Layout Considerations
Layout Considerations 4.1 Layout Considerations The IN1, IN2, and OUT pins of the TPS211x can carry up to 1 A, so traces to these pins should be of suitable length and width to minimize the voltage drop to the load. Locate the 0.1 µF bypass capacitors close to the IN1, IN2, and GND pins of the TPS211x.