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Schematic and Bill of Materials

13

SNVU602 – May 2019

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Copyright © 2019, Texas Instruments Incorporated

TPS54240EVM-VSON Regulator Evaluation Module

3

Schematic and Bill of Materials

This section presents the TPS54240EVM-VSON schematic and bill of materials.

3.1

Schematic

Figure 16

is the schematic for the TPS54240EVM-VSON.

Figure 16. TPS54240EVM-VSON Schematic

Summary of Contents for TPS54240EVM-VSON

Page 1: ...ON Output Voltage Ripple in DCM Mode at 200 mA ILOAD 9 8 TPS54240EVM VSON Output Voltage Ripple in Eco mode at 20 mA ILOAD 9 9 TPS54240EVM VSON Input Voltage Ripple in CCM mode at 2 5 A ILOAD 10 10 TP...

Page 2: ...Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS54240EVM VSON Regulator Evaluation Module Trademarks Eco mode is a trademark of Texas Instruments All other trademarks are the...

Page 3: ...ps keep the junction temperature low at high output currents The compensation components are external to the integrated circuit IC and an external divider allows for an adjustable output voltage Addit...

Page 4: ...A 87 7 CCM DCM boundary VIN 12 V 0 4 A Eco mode threshold VIN 12 V 45 mA 2 Test Setup and Results This section describes how to properly connect set up and use the TPS54240EVM VSON evaluation module...

Page 5: ...TOR FUNCTION J1 VIN see Table 1 for VIN range J2 VOUT 3 3 V at 2 5 A maximum J3 Input and output GND TP1 VIN test point at VIN connector TP2 Output voltage test point at OUT connector TP5 Test point b...

Page 6: ...the load current increases towards full load Figure 2 shows the efficiency for the TPS54240EVM VSON at an ambient temperature of 25 C Figure 2 TPS54240EVM VSON Efficiency Figure 3 shows the efficiency...

Page 7: ...right 2019 Texas Instruments Incorporated TPS54240EVM VSON Regulator Evaluation Module 2 3 Output Voltage Load Regulation The load regulation for the TPS54240EVM VSON is shown in Figure 4 Figure 4 TPS...

Page 8: ...ight 2019 Texas Instruments Incorporated TPS54240EVM VSON Regulator Evaluation Module 2 4 Load Transients The TPS54240EVM VSON response to load transients is shown in Figure 5 The current step is from...

Page 9: ...54240EVM VSON output voltage ripple in CCM mode is shown in Figure 6 The ripple voltage is measured directly across the input capacitors When the output current is less than one half the peak to peak...

Page 10: ...e in CCM mode is shown in Figure 9 The output current is the rated full load of 2 5 A and VIN 12 V The ripple voltage is measured directly across the input capacitors The TPS54240EVM VSON input voltag...

Page 11: ...rising The input voltage is initially applied and when the input reaches the undervoltage lockout threshold the start up sequence begins and the output ramps up at the externally set rate toward the s...

Page 12: ...Instruments Incorporated TPS54240EVM VSON Regulator Evaluation Module 2 9 Loop Characteristics The TPS54240EVM VSON loop response characteristics are shown in Figure 15 Gain and phase plots are shown...

Page 13: ...ight 2019 Texas Instruments Incorporated TPS54240EVM VSON Regulator Evaluation Module 3 Schematic and Bill of Materials This section presents the TPS54240EVM VSON schematic and bill of materials 3 1 S...

Page 14: ...0 Std Std 1 D1 40V Diode Schottky 40 V 3 A SMB SMB B340B 13 F Diodes Inc 3 J1 J2 J3 Standard Banana Jack Uninsulated 8 9mm Keystone575 8 575 8 Keystone 1 J4 Header 100mil 3x1 Gold TH Header 100mil 3x1...

Page 15: ...frequency and external clock synchronization The VSON package offers an exposed thermal pad which must be soldered to the copper landing on the PCB for optimal thermal performance The PCB consists of...

Page 16: ...NVU602 May 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS54240EVM VSON Regulator Evaluation Module Figure 18 TPS54240EVM VSON Bottom Side Assembly Figure 19 TPS54...

Page 17: ...NVU602 May 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS54240EVM VSON Regulator Evaluation Module Figure 20 TPS54240EVM VSON Mid Layer 1 Layout Figure 21 TPS5424...

Page 18: ...Instruments Incorporated TPS54240EVM VSON Regulator Evaluation Module Figure 22 TPS54240EVM VSON Bottom Side Layout 4 2 Estimated Circuit Area The estimated printed circuit board area for the compone...

Page 19: ...Note that VIN must be in a range so that the minimum on time is greater than 130 ns and the maximum duty cycle is less than 90 Higher duty cycles are possible but may result in uneven switching behavi...

Page 20: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 21: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 22: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 23: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 24: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 25: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...

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