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Manual Texas Instruments TPS53125EVM-599

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  • Texas Instruments TPS53125EVM-599 - page 1

    User's Guide SLVU392 – July 2010 TPS53125EVM-599 The TPS53125EVM-599 Evaluation Module presents an easy-to-use reference design for a common dual output power supply using the TPS53125 controller in cost-sensitive applications. Also included are the schematic, board layout, and bill of materials. Contents 1 Description ...................... ...

  • Texas Instruments TPS53125EVM-599 - page 2

    Description www.ti.com List of Tables 1 TPS53125EVM-599 Electrical and Performance Specifications ...................................................... 2 2 Test Point Description ...................................................................................................... 4 3 TPS53125EVM-599 Bill of Materials ............................. ...

  • Texas Instruments TPS53125EVM-599 - page 3

    + + + + + www.ti.com TPS53125EVM-599 Schematic 3 TPS53125EVM-599 Schematic For Reference Only, See Table x: for Specific Values Figure 1. TPS53125EVM-599 Schematic 3 SLVU392 – July 2010 TPS53125EVM-599 Copyright © 2010, Texas Instruments Incorporated ...

  • Texas Instruments TPS53125EVM-599 - page 4

    Connector and Test Point Descriptions www.ti.com 4 Connector and Test Point Descriptions 4.1 Enable Jumpers/Switches –SW1 and SW2 The TPS53125EVM-599 board includes independent enable switches for each of the two outputs. When the switch is in the DIS position, the channel is disabled and discharged per the TPS53125’s internal discharge charact ...

  • Texas Instruments TPS53125EVM-599 - page 5

    www.ti.com Test Setup 4.2.4 Soft-Start Voltage Monitoring – TP1, TP2, and TP3 TPS53125EVM-599 provides two test points for measuring the soft-start ramp voltages. TP1 monitors the soft-start ramp of Channel 1. TP2 monitors the soft-start ramp of Channel 2. To use TP1 or TP2, connect an oscilloscope probe between TP1 or TP2 and TP3. 4.2.5 Switchin ...

  • Texas Instruments TPS53125EVM-599 - page 6

    Test Setup www.ti.com J1 to LOAD1 and J2 to LOAD2 - The connection between J1 and LOAD1 and J2 and LOAD2 of TPS53125EVM-599 can carry as much as 4 Adc each. The minimum recommended wire size is AWG #14, with the total length of wire less than 2 feet (1-foot input, 1-foot return). 5.1.6 Other Test Equipment Fan – The TPS53125EVM-599 Evaluation Mod ...

  • Texas Instruments TPS53125EVM-599 - page 7

    LOAD1 1.05V @ 4A F AN V2 + - Oscilloscope 1M W , AC 20mV / div 20MHz LOAD2 1.8V @ 4A V3 - + - + - + A1 - + V VIN V1 + - www.ti.com Test Setup 5.2.2 Test Setup Diagram Figure 2. TPS53125EVM-599 Recommended Test Setup 5.3 Start-Up/Shutdown Procedures Perform the start-up and shutdown procedures in the following manner. 1. Increase V IN from 0 V to 12 ...

  • Texas Instruments TPS53125EVM-599 - page 8

    0 1 2 3 4 5 I -LoadCurrent- A LOAD 50 55 60 65 70 75 80 85 90 95 h -Efficiency-% V =8V I V =12V I V =22V I TPS53125EVM-599 Test Data www.ti.com 7. Decrease LOAD2 to 0 A. 5.4 Output Ripple Voltage Measurement Procedure Perform the Output Ripple Voltage Measurement procedure in the following manner. 1. Increase V I ...

  • Texas Instruments TPS53125EVM-599 - page 9

    0 10 20 30 40 50 60 70 80 90 100 h -Efficiency-% 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 I -LoadCurrent- A LOAD V =8V I V =12V I V =22V I V =8V I V =12V I V =22V I 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 I -LoadCurrent- A LOAD 1.05 1.055 1.06 1.065 1.07 V -OutputV oltage-V O www.ti.com TPS53125 ...

  • Texas Instruments TPS53125EVM-599 - page 10

    1.82 1.825 1.83 1.835 1.84 1.845 1.85 1.855 1.86 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 I -LoadCurrent- A LOAD V -OutputV oltage-V O V =8V I V =12V I V =22V I TPS53125EVM-599 Test Data www.ti.com V IN = 8 V – 22 V, V OUT1 = 1.80 V, I OUT = 0 A – 4 A Figure 6. TPS53125EVM-599 Output Voltage vs Load Current 6.3 Outpu ...

  • Texas Instruments TPS53125EVM-599 - page 11

    www.ti.com TPS53125EVM-599 Test Data V IN = 12, V OUT2 = 1.80, I OUT2 = 4 A Figure 8. TPS53125EVM-599 Output Voltage Ripple 6.4 Switch Node tV IN = 12, V OUT1 = 1.05, I OUT1 = 4A, Ch1: TP5 (SW1) Figure 9. TPS53125EVM-599 Switching Waveforms 11 SLVU392 – July 2010 TPS53125EVM-599 Copyright © 2010, Texas Instruments Incorporated ...

  • Texas Instruments TPS53125EVM-599 - page 12

    TPS53125EVM-599 Assembly Drawings and Layout www.ti.com V IN = 12, V OUT2 = 1.80, I OUT2 = 4A Ch1: TP11 (SW2) Figure 10. TPS53125EVM-599 Switching Waveforms 7 TPS53125EVM-599 Assembly Drawings and Layout The following figures ( Figure 11 through Figure 15 ) show the design of the TPS53125EVM-599 printed-circuit board. The EVM has been designed usin ...

  • Texas Instruments TPS53125EVM-599 - page 13

    www.ti.com TPS53125EVM-599 Assembly Drawings and Layout Figure 12. TPS53125EVM-599 Top Copper, Viewed From Top Figure 13. TPS53125EVM-599 Bottom Copper, Viewed From Bottom 13 SLVU392 – July 2010 TPS53125EVM-599 Copyright © 2010, Texas Instruments Incorporated ...

  • Texas Instruments TPS53125EVM-599 - page 14

    TPS53125EVM-599 Assembly Drawings and Layout www.ti.com Figure 14. TPS53125EVM-599 Internal 1, X-Ray View From Top Figure 15. TPS53125EVM-599 Internal 2, X-Ray View From Top 14 TPS53125EVM-599 SLVU392 – July 2010 Copyright © 2010, Texas Instruments Incorporated ...

  • Texas Instruments TPS53125EVM-599 - page 15

    www.ti.com TPS53125EVM-599 Bill of Materials 8 TPS53125EVM-599 Bill of Materials The Table 3 contains the bill of materials for TPS53125EVM-599. The reference designators reference the schematic in Figure 1 and assembly locations in Figure 11 . The components listed with a quantity of 0 are not populated on the PCB but are provided for reference. T ...

  • Texas Instruments TPS53125EVM-599 - page 16

    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 th ...

  • Texas Instruments TPS53125EVM-599 - page 17

    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 ...

Manufacturer Texas Instruments Category Power Supply

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