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Introduction
2
Setup
3
Board Layout
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Schematic and Bill of Materials
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TPS6025x Software Screenshot
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Assembly Layer
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Top Layer Routing
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Bottom Layer Routing
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TPS60251EVM-192 Schematic
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Factory EVM Jumper Settings
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TPS60251EVM-192 Bill of Materials
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Introduction
The Texas Instruments TPS60251EVM-192 evaluation module (EVM) assists designers to evaluate the
operation and performance of the TPS60251 white LED (WLED) driver for applications that are powered
with one Li-ion or Li-polymer cell and require two or three separate banks of WLEDs. The TPS60251
contains a 1x/1.5x chargepump, as well as seven current sinks that are configured into a main display
bank of four or five WLEDs and a sub-display bank of two WLEDs. Additionally, the fifth main display
WLED can be configured to drive an aux display at up to 80 mA for backlighting a keypad or a weak
camera flash.
SLVU209A – April 2007 – Revised June 2007
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List of Figures
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List of Tables
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SLVU209A – April 2007 – Revised June 2007
TPS60251EVM-192
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User's Guide
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TPS60251EVM-192
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Summary of Contents for Texas Instruments TPS60251EVM-192
- Page 1 TPS60251EVM-192 Bill of Materials Introduction The Texas Instruments TPS60251EVM-192 evaluation module (EVM) assists designers to evaluate the operation and performance of the TPS60251 white LED (WLED) driver for applications that are powered with one Li-ion or Li-polymer cell and require two or three separate banks of WLEDs. The TPS60251 contains a 1x/1.5x chargepump, as well as seven current sinks that are configured into a main display...
- Page 2 Setup Setup This chapter describes the jumpers and connectors on the EVM, as well as how to properly connect, set up, and use the TPS60251EVM-192. Input/Output Connector Descriptions J1 – VIN This is the positive input voltage connection to the converter. The EVM operates from any supply voltage between 3 V and 6 V.
- Page 3 2.2.4 Software Texas Instruments provides software to assist the user in evaluating this EVM. To install the software, insert the enclosed CD into your computer. The software should start automatically. If it does not, go to <Start>, <Run>, and type D:\setup.exe, and click <OK> (assuming that D: is your CD drive). Check the TPS60251 product folder on the TI Web site for the latest version of the software.
- Page 4 "Grouped with Main Display", the current level for both the aux display and the main display is adjusted with the main display pulldown box. The values in the pulldown boxes change based on the selected value for Ris. TPS60251EVM-192 SLVU209A – April 2007 – Revised June 2007 Submit Documentation Feedback...
- Page 5 This portion of the software allows the user to change the registers on a bit level. When selecting a bit in the register map, the description of the bit is shown on the bottom bar of the software. Figure 1. TPS6025x Software Screenshot SLVU209A – April 2007 – Revised June 2007 TPS60251EVM-192 Submit Documentation Feedback...
- Page 6 Board Layout Board Layout This chapter provides the TPS60251EVM-192 board layout and illustrations. Layout Board layout is critical for all switch mode power supplies. Figure 2 through Figure 4 show the board layout for the TPS60251EVM-192 PWB. Figure 2. Assembly Layer TPS60251EVM-192 SLVU209A –...
- Page 7 Board Layout Figure 3. Top Layer Routing SLVU209A – April 2007 – Revised June 2007 TPS60251EVM-192 Submit Documentation Feedback...
- Page 8 Board Layout Figure 4. Bottom Layer Routing TPS60251EVM-192 SLVU209A – April 2007 – Revised June 2007 Submit Documentation Feedback...
- Page 9 Schematic and Bill of Materials Schematic and Bill of Materials This chapter provides the TPS60251EVM-192 schematic and bill of materials. Schematic Figure 5. TPS60251EVM-192 Schematic SLVU209A – April 2007 – Revised June 2007 TPS60251EVM-192 Submit Documentation Feedback...
- Page 10 Related Documentation From Texas Instruments Bill of Materials Table 2. TPS60251EVM-192 Bill of Materials Count RefDes Value Description Size Part Number Capacitor, Ceramic, 25V, X5R, 1.0uF 0603 GRM188R61E105KA12 muRata Capacitor, Ceramic, 10V, X5R, C2, C3 2.2uF 0603 GRM188R61A225KE34 muRata Capacitor, Ceramic, 10V, X5R, 4.7uF...
- Page 11 EVALUATION BOARD/KIT IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
- Page 12 TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products...
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