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Texas Instruments TPS53127EVM-614, User Manual, Page: 8 / 19

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Texas Instruments TPS53127EVM-614 User Manual Download Page 8

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Test Setup

www.ti.com

5.2.2

Diagram

Figure 3. TPS53127EVM-614 Recommended Test Setup

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TPS53127EVM-614

SLVU434 – February 2011

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© 2011, Texas Instruments Incorporated

Summary of Contents for TPS53127EVM-614

Page 1: ...3 Output Voltage Ripple and Switching Node waveforms 12 6 4 Switch Node 13 7 TPS53127EVM 614 EVM Assembly Drawings and Layout 14 8 Bill of Materials 17 List of Figures 1 TPS53127EVM 614 Schematic 4 2...

Page 2: ...ing both a low core type 1 05V and I O type 1 8V output at up to 4A from a loosely regulated 12V 8V 22V source the TPS53127EVM 614 includes switches and test points to assist a user in evaluating the...

Page 3: ...1 03 1 05 1 07 V Line Regulation VIN 8 V to 22 V 1 Load Regulation IOUT1 0 A to 4 A 1 VOUT1_rip Output Voltage Ripple VIN 12 V IOUT2 4 A 30 mVpp IOUT1 Output Current 1 VIN 8 V to 22 V 0 4 A VOUT2 Out...

Page 4: ...ti com 3 TPS53127EVM 614 Schematic NOTE For Reference Only See Table 3 for Specific Values Figure 1 TPS53127EVM 614 Schematic 4 TPS53127EVM 614 SLVU434 February 2011 Submit Documentation Feedback 2011...

Page 5: ...und for Channel 2 Output Voltage Section 4 3 3 TP7 VO2 Monitor Output Voltage for Channel 2 Section 4 3 3 TP8 VO1 Monitor Output Voltage for Channel 1 Section 4 3 2 TP9 VIN Monitor Input Voltage Secti...

Page 6: ...n oscilloscope probe between TP1 or TP2 and TP3 4 3 5 Switching Node Monitoring TP3 TP5 and TP11 TPS53127EVM 614 provides two test points for measuring the switching node waveform voltages TP5 monitor...

Page 7: ...e size is AWG 14 with the total length of wire less than 2 feet 1 foot input 1 foot return 5 1 6 Other FAN The TPS53127EVM 614 Evaluation Module includes components that can get hot to the touch Becau...

Page 8: ...AD2 1 8V 4A V3 A1 VVIN V1 FAN Test Setup www ti com 5 2 2 Diagram Figure 3 TPS53127EVM 614 Recommended Test Setup 8 TPS53127EVM 614 SLVU434 February 2011 Submit Documentation Feedback 2011 Texas Instr...

Page 9: ...2Vdc Connect Oscilloscope Probe to CN1 or CN2 shown in Figure 3 Measure Output Ripple Decrease VIN to 0Vdc Decrease LOAD1 to 0A Decrease LOAD2 to 0A 5 5 Equipment Shutdown Shut Down Oscilloscope Shut...

Page 10: ...D h Efficiency 0 10 20 30 40 50 60 70 80 90 100 V 8 V I V 12 V I V 22 V I V 8 V 22 V V 1 80 V I 0 A 4 A I OUT2 OUT2 TPS53127EVM 614 Test Data www ti com 6 1 Efficiency Figure 4 Efficiency vs Load VIN...

Page 11: ...1 81 1 815 1 82 1 825 1 83 0 0 5 1 1 5 2 2 5 3 3 5 4 V 22 V I V 8 V I V 12 V I V 8 V 22 V V 1 0 V I 0 A 4 A I OUT1 OUT1 www ti com TPS53127EVM 614 Test Data 6 2 Line and Load Regulation Figure 6 Outp...

Page 12: ...TPS53127EVM 614 Test Data www ti com 6 3 Output Voltage Ripple and Switching Node waveforms Figure 8 Output Voltage Ripple VIN 12 V VOUT1 1 05 V IOUT1 4 A Figure 9 Output Voltage Ripple VIN 12 V VOUT2...

Page 13: ...on 12 Vin 1 8 V 4 A www ti com TPS53127EVM 614 Test Data 6 4 Switch Node Figure 10 Switching Waveform VIN 12 V VOUT1 1 05 V IOUT1 4 A Figure 11 Switching Waveform VIN 12 V VOUT2 1 8 V IOUT2 4 A 13 SLV...

Page 14: ...a 4 Layer 2oz copper clad circuit board 3 5 in 2 7 to allow the user to easily view probe and evaluate the TPS53127 control IC in a practical application Moving components to both sides of the PCB or...

Page 15: ...i com TPS53127EVM 614 EVM Assembly Drawings and Layout Figure 14 Top Layer Figure 15 Bottom Layer 15 SLVU434 February 2011 TPS53127EVM 614 Submit Documentation Feedback 2011 Texas Instruments Incorpor...

Page 16: ...M 614 EVM Assembly Drawings and Layout www ti com Figure 16 Internal Layer 1 Figure 17 Internal Layer 2 16 TPS53127EVM 614 SLVU434 February 2011 Submit Documentation Feedback 2011 Texas Instruments In...

Page 17: ...0603 Std Std 4 R10 R4 R6 R8 10 0k Resistor Chip 1 16W 1 0603 Std Std 2 R11 R12 5 11 Resistor Chip 1 16W 1 0603 Std Std 1 R13 432 Resistor Chip 1 16W 1 0603 Std Std 0 R14 R15 Resistor Chip 1 8W 5 0603...

Page 18: ...ct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engineer...

Page 19: ...orized for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parti...

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