Texas Instruments TPS54521EVM-607 Скачать руководство пользователя страница 16 | Manualshive

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Texas Instruments TPS54521EVM-607 Скачать руководство пользователя страница 16

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Figure 4-1. TPS54521EVM-607 Schematic

Schematic and Bill of Materials

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TPS54521 Step-Down Converter Evaluation Module User's Guide

SLVU379A – AUGUST 2010 – REVISED AUGUST 2021

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Copyright © 2021 Texas Instruments Incorporated

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Содержание TPS54521EVM-607

Страница 1: ...607 Transient Response 8 Figure 2 6 TPS54521EVM 607 Loop Response 8 Figure 2 7 TPS54521EVM 607 Output Ripple 9 Figure 2 8 TPS54521EVM 607 Input Ripple 9 Figure 2 9 TPS54521EVM 607 Start Up Relative to...

Страница 2: ...aterials 17 Trademarks All trademarks are the property of their respective owners Trademarks www ti com 2 TPS54521 Step Down Converter Evaluation Module User s Guide SLVU379A AUGUST 2010 REVISED AUGUS...

Страница 3: ...521EVM 607 Table 1 1 Input Voltage and Output Current Summary EVM INPUT VOLTAGE RANGE OUTPUT CURRENT RANGE TPS54521EVM 607 VIN 8 V to 17 V VIN start voltage 6 806 V 0 A to 5 A 1 2 Performance Specific...

Страница 4: ...21 5 3 3 31 6 5 52 3 1 3 2 Slow Start Time The slow start time can be adjusted by changing the value of C7 Use Equation 2 to calculate the required value of C7 for a desired slow start time Tss ms Iss...

Страница 5: ...f 20 AWG wires The maximum load current capability must be 5 A Wire lengths must be minimized to reduce losses in the wires Test point TP1 provides a place to monitor the VIN input voltages with TP2 p...

Страница 6: ...VM 607 at lower output currents below 0 10 A at an ambient temperature of 25 C 0 10 20 30 40 50 60 70 80 90 100 0 01 0 02 0 03 0 04 0 05 0 06 0 07 0 08 0 09 0 1 Efficiency I Output Current A O V 12 V...

Страница 7: ...mbient temperature of 25 C 2 4 Output Voltage Line Regulation Figure 2 4 shows the line regulation for the TPS54521EVM 607 0 05 0 04 0 03 0 02 0 01 0 0 01 0 02 0 03 0 04 0 05 8 9 10 11 12 13 14 15 16...

Страница 8: ...igure 2 6 shows the TPS54521EVM 607 loop response characteristics Gain and phase plots are shown for VIN voltage of 12 V Load current for the measurement is 5 A 60 50 40 30 20 10 0 10 20 30 40 50 60 F...

Страница 9: ...8 Input Voltage Ripple Figure 2 8 shows the TPS54521EVM 607 input voltage ripple The output current is the rated full load of 5 A and VIN 12 V The ripple voltage is measured directly across the input...

Страница 10: ...enable threshold voltage the start up sequence begins and the output voltage ramps up to the externally set value of 3 3 V The input voltage for these plots is 12 V and the load is 0 66 Time 2 msec d...

Страница 11: ...Overcurrent Hiccup Mode 2 11 Thermal Characteristics This section shows a thermal image of the TPS54521EVM 607 running at 12 V input and 5 A load and a graph showing the junction temperature vs outpu...

Страница 12: ...oom temperature no airflow 3 5 4 4 5 5 Figure 2 13 TPS54521EVM 607 Junction Temperature vs Load Current Test Setup and Results www ti com 12 TPS54521 Step Down Converter Evaluation Module User s Guide...

Страница 13: ...plane to the bottom side ground plane The input decoupling capacitors C2 and C3 and bootstrap capacitor C5 are all located as close to the IC as possible In addition the voltage set point resistor di...

Страница 14: ...d Circuit Area The estimated printed circuit board area for the components used in this design is 246 in2 0 38 mm2 This area does not include test point or connectors Board Layout www ti com 14 TPS545...

Страница 15: ...f materials 4 1 Schematic Figure 4 1 is the schematic for the TPS54521EVM 607 www ti com Schematic and Bill of Materials SLVU379A AUGUST 2010 REVISED AUGUST 2021 Submit Document Feedback TPS54521 Step...

Страница 16: ...Schematic Schematic and Bill of Materials www ti com 16 TPS54521 Step Down Converter Evaluation Module User s Guide SLVU379A AUGUST 2010 REVISED AUGUST 2021 Submit Document Feedback Copyright 2021 Tex...

Страница 17: ...2L Coilcraft 1 R1 511 K Resistor Chip 1 16W 1 0603 Std Std 2 R2 R3 100 K Resistor Chip 1 16W 1 0603 Std Std 1 R4 38 3 K Resistor Chip 1 16W 1 0603 Std Std 1 R7 51 1 Resistor Chip 1 16W 1 0603 Std Std...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 23: ...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 reproduction and...

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