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2 TPS54386EVM Electrical Performance Specifications

Table 2-1. Electrical Performance Specifications

SYMBOL

PARAMETER

MIN

TYP

MAX

UNITS

Input Characterstics

V

IN

Input coltage

9.6

12

13.2

V

I

IN

Input current

V

IN

 = nom, I

OUT

 = max

-

1.6

2.0

A

No load input current

V

IN

 = nom, I

OUT

 = 0 A

-

12

20

mA

V

IN_UVLO

Input UVLO

I

OUT

 = min to max

4.0

4.2

4.4

V

Output Characterstics

V

OUT1

Output voltage 1

V

IN

 = nom, I

OUT

 = nom

4.85

5.0

5.15

V

V

OUT2

Output voltage 2

V

IN

 = nom, I

OUT

 = nom

3.20

3.3

3.40

Line regulation

V

IN

 = min to max

-

-

1%

Load regulation

IOUT = min to max

-

-

1%

V

OUT_ripple

Output voltage ripple

V

IN

 = nom, I

OUT

 = max

-

-

30

mV

pp

I

OUT1

Output current 1

V

IN

 = min to max

0

2.0

A

I

OUT2

Output current 2

V

IN

 = min to max

0

2.0

I

OCP1

Output over current 
Channel 1

V

IN

 = nom, V

OUT

 = V

OUT1

 - 5%

3.1

3.7

4.5

I

OCP2

Output over current 
Channel 2

V

IN

 = nom, V

OUT

 = V

OUT2

 - 5%

3.1

3.7

4.5

Systems Characterstics

F

SW

Switching frequency

510

630

750

kHz

ηpk

Peak efficiency

V

IN

 = nom

-

90%

-

η

Full load efficiency

V

IN

 = nom, I

OUT

 = max

-

85%

-

Top

Operating temperature 
range

V

IN

 = min to max, I

OUT

 = min to max

0

25

60

°C

www.ti.com

TPS54386EVM Electrical Performance Specifications

SLUU286A – MARCH 2008 – REVISED OCTOBER 2021

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TPS54x86 Step-Down Converter Evaluation Module User's Guide

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Summary of Contents for TPS54386EVM

Page 1: ...ent Technique output ripple measurement using TP3 and TP4 or TP18 and TP19 9 Figure 4 3 Control Loop Measurement Setup 9 Figure 5 1 TPS54386EVM Efficiency verse Load Current VIN 9 6 13 2 V VOUT1 5 0 V...

Page 2: ...dified to other input or output voltages by changing some of the components 1 2 Applications Non Isolated Low Current Point of Load and Voltage Bus Converters Consumer Electronics LCD TV Computer Peri...

Page 3: ...VOUT_ripple Output voltage ripple VIN nom IOUT max 30 mVpp IOUT1 Output current 1 VIN min to max 0 2 0 A IOUT2 Output current 2 VIN min to max 0 2 0 IOCP1 Output over current Channel 1 VIN nom VOUT V...

Page 4: ...rence only see Table 7 1 List of Materials for specific values Schematic www ti com 4 TPS54x86 Step Down Converter Evaluation Module User s Guide SLUU286A MARCH 2008 REVISED OCTOBER 2021 Submit Docume...

Page 5: ...ion connects EN1 to ground and turns on first Output 1 and then Output 2 3 3 Test Point Descriptions Table 3 1 Test Point Descriptions TEST POINT LABLE USE SECTION TP1 VIN Monitor input voltage Sectio...

Page 6: ...ching waveform Connect an oscilloscope probe to TP9 to monitor the switch node voltage for Channel 1 3 3 5 TPS54386 Device Ground TP11 TPS54386EVM provides a test point for the device ground To measur...

Page 7: ...ded ground connection may induce additional noise due to the large ground loop area 4 1 5 Recommended Wire Gauge VIN to J1 The connection between the source voltage VIN and J1 of HPA241 can carry as m...

Page 8: ...nd J1 as shown in Figure 4 1 4 Connect voltmeter V1 to TP1 and TP2 as shown in Figure 4 1 5 Connect LOAD1 to J2 as shown in Figure 4 1 Set LOAD1 to constant current mode to sink 0 ADC before VIN is ap...

Page 9: ...rement using TP3 and TP4 or TP18 and TP19 FAN V1 A1 VVIN LOAD1 5 0V 2A V2 LOAD2 3 3V 2A V3 Isolation Transformer Figure 4 3 Control Loop Measurement Setup www ti com 4 Test Set Up SLUU286A MARCH 2008...

Page 10: ...Channel B to TP6 as shown in Figure 4 3 4 Connect ground lead of Channel A and Channel B to TP5 TP7 as shown in Figure 4 3 5 Inject 30 mV or less signal across R1 through isolation transformer 6 Sweep...

Page 11: ...6 1 62 90 h Efficiency EFFICIENCY V OUT 5 0 V vs LOADCURRENT 70 65 ILOAD Load Current A 90 75 65 60 85 h Efficiency EFFICIENCY V OUT 3 3 V vs LOADCURRENT 50 2 00 13 2 V 9 6 V 12 0 V 0 10 1 24 0 48 0 8...

Page 12: ...335 0 86 0 10 1 62 0 48 1 24 2 00 0 86 3 328 Figure 5 2 TPS54386EVM Output Voltage verse Load Current VIN 9 6 13 2 V VOUT1 5 0 V IOUT1 0 2 A VOUT2 3 3 V IOUT2 0 2 A 5 3 Output Voltage Ripple Figure 5...

Page 13: ...48 90 45 180 Phase 135 90 0 45 0 GAIN PHASE vs FREQUENCY V OUT 3 3V IOUT 2 A f Frequency Hz 100 1000 10 0 100 20 60 60 Gain dB 20 40 0 40 80 Phase 90 45 90 0 45 Gain Phase Figure 5 5 TPS54386EVM Gain...

Page 14: ...to allow the user to easily view probe and evaluate the TPS54386 control device in a practical double sided application Moving components to both sides of the PCB or using additional internal layers c...

Page 15: ...viewed from top www ti com EVM Assembly Drawings and Layout SLUU286A MARCH 2008 REVISED OCTOBER 2021 Submit Document Feedback TPS54x86 Step Down Converter Evaluation Module User s Guide 15 Copyright 2...

Page 16: ...ray view from top EVM Assembly Drawings and Layout www ti com 16 TPS54x86 Step Down Converter Evaluation Module User s Guide SLUU286A MARCH 2008 REVISED OCTOBER 2021 Submit Document Feedback Copyrigh...

Page 17: ...nch Coilcraft MSS1048 822L 2 R1 R10 Resistor chip 1 16 W 5 51 0603 Std Std 2 R2 R9 Resistor chip 1 16 W 1 20 k 0603 Std Std 2 R3 R8 Resistor chip 1 16 W 5 10 0603 Std Std 1 R4 Resistor chip 1 16 W 1 3...

Page 18: ...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 19: ...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 20: ...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 21: ...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 22: ...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 23: ...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 reproduction and display of thes...

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