Texas Instruments UCC25600EVM Скачать руководство пользователя страница 7 | Manualshive

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Texas Instruments UCC25600EVM Скачать руководство пользователя страница 7

Test Setup

7

SLUU361A – April 2009 – Revised November 2018

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Copyright © 2009–2018, Texas Instruments Incorporated

LLC Resonant Half-Bridge Converter, 300-W Evaluation Module

5.3

Notes on Power Up and Power Down

The following steps are guidelines for power up and power down of the EVM.

1. An ESD workstation is recommended. Make sure that an ionizer is on before the EVM is removed from

the protective packaging and power is applied to the EVM. Electrostatic smock and safety glasses
should also be worn.

2. Power Up

1. Set up an air cooling fan with minimum 400 LFM or 2.0 m/s forced airflow. This airflow direction

should point to the middle of DB1 and DB2 and towards transformer T2. The cooling fan should be
on throughout the test.

2. Prior to connecting the DC input source, limit the source current 1.0 A maximum. Make sure the

DC source is initially set at 390 V

DC

prior to turning on. Connect the DC source to the EVM as

shown in

3. Connect the current meters DMM2 and DMM4 as shown in

.

4. Connect the volt meter DMM1 and DMM3 as shown in

.

5. For operation with a load, connect the electronic load to the EVM as shown in

. Set the

LOAD to constant current mode with initial value of 1.0 A. Note: if the load less than 1.0 A, the
UCC25600 may be in burst operation and the EVM output voltage may start hiccup.

6. Turn on the DC source and observe the output voltage. Its output voltage should be at nominal 12

V

DC

.

7. Varying the load between 1.0 A and 25 A.

3. Power Down

1. Turn off the DC source.

2. Turn off the load.

5.4

Recommended Test Setup

Figure 3. Recommended Test Set Up

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Содержание UCC25600EVM

Страница 1: ...Using the UCC25600EVM User s Guide Literature Number SLUU361A April 2009 Revised November 2018 ...

Страница 2: ...to make rectification Proper precautions must be taken when working with the EVM High voltage levels over 390 V and temperature higher than 70 C are present on the EVM when it is powered on and after power off for a short time as well Forced air cooling is required when the EVM is powered on 2 Description 2 1 Typical Applications LLC resonant half bridge converters are seen in applications such as...

Страница 3: ...rical Performance Specifications PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Input Characteristics Voltage range VIN 375 390 405 VDC Maximum input current VIN 390 VDC IOUT 25A 0 88 A Switching frequency VIN 390 VDC IOUT 25A 110 kHz Output Characteristics Output voltage VOUT VIN 390 VDC IOUT 1A 11 9 12 12 2 VDC Load current1 1 VIN 390 VDC 0 25 A Continuous output power VIN 390 VDC 300 W Line regula...

Страница 4: ...W Evaluation Module 4 Schematic Figure 1 UCC25600EVM Schematic 5 Test Setup 5 1 List of Test Points The EVM provides plenty of test points to facilitate the device s evaluation work All test points are divided into two major groups primary test points and secondary test points Their locations are shown in Figure 2 The list below helps users to identify the functions of each test point ...

Страница 5: ...Setup 5 SLUU361A April 2009 Revised November 2018 Submit Documentation Feedback Copyright 2009 2018 Texas Instruments Incorporated LLC Resonant Half Bridge Converter 300 W Evaluation Module Figure 2 Test Point Location ...

Страница 6: ...ND Icr TP2 Resonant tank current Vxm TP5 T2 pin 6 Vcr TP13 Resonant capacitor voltage OUTB TP14 T3 pin 1 OUTA TP8 T3 pin 4 5 2 Test Equipment Voltage Source The input source shall be a constant DC source capable of supplying 390 VDC with minimum 1 0 ADC current rating Multimeters Multimeters are used to measure the output voltage DMM1 the input voltage DMM3 the output current DMM2 and the input lo...

Страница 7: ...The cooling fan should be on throughout the test 2 Prior to connecting the DC input source limit the source current 1 0 A maximum Make sure the DC source is initially set at 390 VDC prior to turning on Connect the DC source to the EVM as shown in Figure 3 3 Connect the current meters DMM2 and DMM4 as shown in Figure 3 4 Connect the volt meter DMM1 and DMM3 as shown in Figure 3 5 For operation with...

Страница 8: ...on 7 6 3 Efficiency The efficiency may be calculated based on the test data obtained from Section 6 1 To correctly measure input and output voltage for the efficiency calculation test points TP1 and TP2 should be used for input voltage measurement and test points TP10 and TP18 should be used for output voltage measurement Reference results of efficiency can be found in Section 7 6 4 Bode Plots To ...

Страница 9: ...istic Curves 9 SLUU361A April 2009 Revised November 2018 Submit Documentation Feedback Copyright 2009 2018 Texas Instruments Incorporated LLC Resonant Half Bridge Converter 300 W Evaluation Module 7 Performance Data and Typical Characteristic Curves Figure 4 through Figure 17 present typical performance curves for UCC25600EVM Figure 4 Line Regulation IO 1 A Figure 5 Load Regulation VIN 390 VDC Fig...

Страница 10: ...tic Curves www ti com 10 SLUU361A April 2009 Revised November 2018 Submit Documentation Feedback Copyright 2009 2018 Texas Instruments Incorporated LLC Resonant Half Bridge Converter 300 W Evaluation Module Figure 8 Typical Output Voltage Turn On TP15 Figure 9 Full System Loop Compensation TP19 and TP21 Figure 10 Typical Soft Start Waveform Figure 11 Typical Resonant Tank Current and Resonant Capa...

Страница 11: ...Copyright 2009 2018 Texas Instruments Incorporated LLC Resonant Half Bridge Converter 300 W Evaluation Module Figure 12 Typical Voltage of the Resonant Circuit Figure 13 Typical Resonant Voltage and Current at Light Load Figure 14 Typical Resonant Voltage and Current at Heavy Load Figure 15 Typical Output Voltage in Burst Operation TP15 ...

Страница 12: ...istic Curves www ti com 12 SLUU361A April 2009 Revised November 2018 Submit Documentation Feedback Copyright 2009 2018 Texas Instruments Incorporated LLC Resonant Half Bridge Converter 300 W Evaluation Module Figure 16 Typical Output Voltage in Burst Operation TP15 Figure 17 Switching Frequency Variation with Respect to Load TP24 ...

Страница 13: ...tion Feedback Copyright 2009 2018 Texas Instruments Incorporated LLC Resonant Half Bridge Converter 300 W Evaluation Module 8 EVM Assembly Drawing and PCB Layout Figure 18 through Figure 26 shows the layout of the four layer printed circuit board used for the EVM Figure 18 Top Assemblies Figure 19 Top Copper ...

Страница 14: ...i com 14 SLUU361A April 2009 Revised November 2018 Submit Documentation Feedback Copyright 2009 2018 Texas Instruments Incorporated LLC Resonant Half Bridge Converter 300 W Evaluation Module Figure 20 Bottom Assemblies Figure 21 Bottom Copper ...

Страница 15: ...B Layout 15 SLUU361A April 2009 Revised November 2018 Submit Documentation Feedback Copyright 2009 2018 Texas Instruments Incorporated LLC Resonant Half Bridge Converter 300 W Evaluation Module Figure 22 Top Assemblies Figure 23 Top Copper ...

Страница 16: ...i com 16 SLUU361A April 2009 Revised November 2018 Submit Documentation Feedback Copyright 2009 2018 Texas Instruments Incorporated LLC Resonant Half Bridge Converter 300 W Evaluation Module Figure 24 Bottom Assemblies Figure 25 Bottom Copper ...

Страница 17: ...citor aluminum 22 μF 50 V 20 Panasonic EEU FC1H220 1 C17 Capacitor aluminum 56 μF 50 V 20 Panasonic EEU FC1H560 2 C19 C26 Capacitor ceramic 47 nF 50 V X7R 10 0805 std std 1 C20 Capacitor ceramic 10 nF 50 V X7R 10 0805 std std 1 C22 Capacitor aluminum 10 μF 50 V 20 Panasonic EEU FC1H100 1 C27 Capacitor ceramic 12 nF 50 V X7R 10 0805 std std 1 C6 Capacitor aluminum electrolytic 1000 μF 16V Panasonic...

Страница 18: ...p 511 Ω 1 8 W 1 0805 std std 1 R24 Resistor chip 5 11 kΩ 1 8 W 1 0805 std std 1 R25 Resistor chip 2 37 kΩ 1 8 W 1 0805 std std 1 R27 Resistor chip 4 99 kΩ 1 8 W 1 0805 std std 1 R28 Resistor film 10 0 Ω 1 4 W 1 RN55 std std 1 R29 Resistor chip 12 7 kΩ 1 8 W 1 0805 std std 3 R3 R6 R26 Resistor chip 10 0 kΩ 1 8 W 1 0805 std std 1 R5 Resistor chip 100 kΩ 1 8 W 1 0805 std std 2 R7 R8 Resistor chip 150...

Страница 19: ...www ti com Revision History 19 SLUU361A April 2009 Revised November 2018 Submit Documentation Feedback Copyright 2009 2018 Texas Instruments Incorporated Revision History Changed New FET part number 18 ...

Страница 20: ...y set forth above or credit User s account for such EVM TI s liability under this warranty shall be limited to EVMs that are returned during the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repair such EVM or provide replacements Repaired EVMs shall be warr...

Страница 21: ...the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain greater than the maximum gain indicated for that type are strictly prohibited for use with this device Concernant les EVMs avec antennes détachables Conformément à la réglementation d Industrie Canada le présent émetteur radio peut fo...

Страница 22: ...ed loads Any loads applied outside of the specified output range may also result in unintended and or inaccurate operation and or possible permanent damage to the EVM and or interface electronics Please consult the EVM user guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even ...

Страница 23: ...COST OF REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE LOSS OF DATA OR BUSINESS INTERRUPTION NO CLAIM SUIT OR ACTION SHALL BE BROUGHT AGAINST TI MORE THAN TWELVE 12 MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS OCCURRED 8 2 Specif...

Страница 24: ...se 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 reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for...

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