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Copyright © 2017, Texas Instruments Incorporated

General Overview

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4

SLLU282A – December 2017 – Revised February 2018

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Copyright © 2017–2018, Texas Instruments Incorporated

UCC5390SCD With Isolated Bias Supply

Figure 2

shows the board image of the EVM.

Figure 2. UCC5390SCDEVM-010 Board Image

The EVM includes an isolated driver, UCC5390SCD, and bias supply, SN6505B. The UCC5390SCD
device is part of the UCC53xx family of drivers, in an 8-pin SOIC package including variants with different
pinout configurations and drive strengths. For this design, the UCC5390SCD device, with split output, 17-
A, and typical current capability, has been selected for its ability to optimally drive FETs and IGBTs in mid-
and high-power applications. The SN6505B device is a push-pull transformer driver, operating at 420 kHz
to provide a compact bias solution for isolated drivers, digital isolators, sense circuits, and various
communication buses. See the

UCC53x0 3-kVRMS Single-Channel Isolated Gate Drivers

data sheet and

SN6505 Low-Noise 1-A Transformer Drivers for Isolated Power Supplies

data sheet for more information

about the UCC5390 isolated driver and SN6505B transformer driver.

The primary side of the EVM is supplied by a 3-V to 5.5-V external voltage source. This voltage is
converted and isolated through a high-frequency transformer to provide bias voltage from 11-V up to 33-V
range to the secondary isolated side of the driver. Bias supply is an unregulated DC-DC transformer, so
the variation of primary voltage directly impacts the secondary side voltage. Therefore, TI recommends an
external voltage source regulated within 5% to 10% for this design. The driver has two inputs: inverted and
non-inverted. One input can be used for the PWM signal and the other as Enable. The driver has split
outputs that, through gate resistors, are connected to output holes to allow direct soldering to the power
device in TO-220 or TO-247 packages. The secondary side of the bias supply includes a rectifier circuit
that can be configured as center-tapped or bridge, therefore expanding the range of available bias
voltage. The secondary side also includes a circuit to generate a split rail with negative turn OFF bias for
applications and power devices where dv/dt-induced, spurious turn ON may be a potential issue.

2.1

Features

Compact, isolated gate driver board for direct connection to power FETs and IGBTs in high-voltage,
mid-, and high-power converters and inverters

Split output, 17-A, typical sink and source drive current for optimal turn ON and turn OFF settings

Single or split rail bias supply configuration in 11-V to 33-V range

Robust, noise-immune solution with CMTI > 100 V per ns

Supports 3-kVrms basic isolation

Provides up to 0.8-W drive power using 80% efficient bias supply

Summary of Contents for UCC5390SCD

Page 1: ... Contents 1 Introduction 3 2 General Overview 3 3 Electrical Specifications 5 4 Detailed Description 5 5 Test Summary 8 6 Power Up Capturing Waveforms and Power Down 11 7 Bias Supply Performance 21 8 Bill of Materials 24 9 Layout Diagrams 25 10 References 27 List of Figures 1 UCC5390SCDEVM 010 Functional Block Diagram 3 2 UCC5390SCDEVM 010 Board Image 4 3 UCC5390SCDEVM 010 Electrical Schematic 6 4...

Page 2: ...s 22 17 Bias Supply Secondary Side Switching Waveforms 23 18 Top Solder Mask 25 19 Top Layer 25 20 Bottom Layer 25 21 Bottom Solder Mask 26 22 Mechanical Dimensions 26 23 Assembly Drawings 27 List of Tables 1 Connection Descriptions 5 2 UCC5390SCDEVM 010 Electrical Specifications 5 3 Bias Voltage Configurations 7 4 Two Channel Function Generator Settings 9 5 Initial Oscilloscope Settings 10 6 Bill...

Page 3: ...or single or split rail drive voltage from 11 V to 33 V covering a wide range of Si and SiC FETs and IGBTs Compact form factor 1 5 0 83 0 3 and embedded footprints for TO 220 and TO 247 power device packages allow for easy direct connection to FETs or IGBTs in the power system for comprehensive performance evaluation 2 General Overview The UCC5390SCDEVM 010 device uses a 17 A split output driver U...

Page 4: ...nverted and isolated through a high frequency transformer to provide bias voltage from 11 V up to 33 V range to the secondary isolated side of the driver Bias supply is an unregulated DC DC transformer so the variation of primary voltage directly impacts the secondary side voltage Therefore TI recommends an external voltage source regulated within 5 to 10 for this design The driver has two inputs ...

Page 5: ... FET in TO 220 or TO 247 package 3 Electrical Specifications Table 2 shows the electrical parameters of the UCC5390SCDEVM 010 Table 2 UCC5390SCDEVM 010 Electrical Specifications PARAMETER TEST CONDITIONS MIN NOM MAX UNIT INPUT CONDITIONS Primary input supply voltage Vcc1 3 5 5 V Input signal rising threshold 0 7 Vcc1 Input signal falling threshold 0 3 Vcc1 OUTPUT CONDITIONS Gate drive voltage Depe...

Page 6: ... Incorporated UCC5390SCD With Isolated Bias Supply 4 1 Schematics By default the EVM is configured for drive pulse outputs 18 V to turn ON and 4 V to turn OFF when a 3 3 V supply voltage is applied to the input Different settings are possible described as follows The configuration procedure is described based on the schematic shown in Figure 3 Figure 3 UCC5390SCDEVM 010 Electrical Schematic ...

Page 7: ...th both IGBT and MOSFET based power systems FET selection does not impact the board maximum power The UCC5390S device limits the power dissipated by the board 4 4 Bias Supply Circuit and Setting Description By default the bias supply outputs are set for 18 V turn ON voltage and 4V turn OFF voltage The output split rail is provided by Zener diode D5 resistor R5 and capacitors C6 and C11 with jumper...

Page 8: ...s CAUTION Caution Warning Hot surface contact may cause burns Do not touch HOT SURFACE Precautions when operating HIGH VOLTAGE Danger High voltage The UCC53x0 device has an isolation boundary but does not have safety rated reinforced isolation If you apply high voltage to this board all terminals should be considered high voltage Electric shock is possible when connecting the board to live wire Th...

Page 9: ...oscope Oscilloscope 500 MHz or higher with four channels for example Tektronix DPO7104 5 3 5 Oscilloscope Probes At least 500 MHz bandwidth passive voltage probe for example Tektronix P6139A Two at least 200 MHz bandwidth 1000 V common mode differential voltage probes for example Tektronix THDP020 At least 50 MHz bandwidth current sense probe for example Tektronix TCP202 5 3 6 Digital Multi Meters...

Page 10: ...width Probe Coupling Vertical Scale Horizontal Scale Measured Waveforms Channel 1 50 MHz TCP202 DC 2 A div 2 µs div Inductor current Channel 2 200 MHz THDP020 DC 10 V div 2 µs div Vgs upper FET Channel 3 200 MHz THDP020 DC 200 V div 2 µs div Vds lower FET Channel 4 500 MHz P6139A DC 10 V div 2 µs div Vgs lower FET 5 3 10 Bench Setup This EVM is designed to ensure easy and close connection to the p...

Page 11: ...ogies that fit their projects and applications The following is the test procedure recommended for this test setup 6 Power Up Capturing Waveforms and Power Down 1 Before beginning the power up test procedure verify the connections in Figure 5 and the function generator and oscilloscope settings 2 Connect the function generator outputs to the EVM inputs using the BNC feed thru terminators Follow al...

Page 12: ...ore the rising and falling edges of the phase node Vds of lower FET by changing horizontal scale to 100 ns div as it is shown in Figure 10 and Figure 11 Verify that at 0 A load both edges are under soft switching with minimum ringing 6 Return to the initial horizontal scale 2 µs div 7 Gradually increase the load current up to 1 0 A The waveforms should look similar to Figure 9 Explore the rising a...

Page 13: ...17 Revised February 2018 Submit Documentation Feedback Copyright 2017 2018 Texas Instruments Incorporated UCC5390SCD With Isolated Bias Supply 12 Reduce the voltage of the low voltage supply down to 0 A Power down is complete Figure 7 Expanded Gate Source Drive Voltage Rise Time ...

Page 14: ...er Down www ti com 14 SLLU282A December 2017 Revised February 2018 Submit Documentation Feedback Copyright 2017 2018 Texas Instruments Incorporated UCC5390SCD With Isolated Bias Supply Figure 8 Expanded Gate Source Drive Voltage Fall Time ...

Page 15: ...cember 2017 Revised February 2018 Submit Documentation Feedback Copyright 2017 2018 Texas Instruments Incorporated UCC5390SCD With Isolated Bias Supply Figure 9 Inductor Current Red Drain Source Pink and Gate Source Drive Voltages Blue and Green at 800 V Input 0 A Output ...

Page 16: ...Down www ti com 16 SLLU282A December 2017 Revised February 2018 Submit Documentation Feedback Copyright 2017 2018 Texas Instruments Incorporated UCC5390SCD With Isolated Bias Supply Figure 10 Expanded Soft Switching Waveforms During Vds Rise ...

Page 17: ... and Power Down 17 SLLU282A December 2017 Revised February 2018 Submit Documentation Feedback Copyright 2017 2018 Texas Instruments Incorporated UCC5390SCD With Isolated Bias Supply Figure 11 Expanded Soft Switching Waveforms During Vds Fall ...

Page 18: ...mber 2017 Revised February 2018 Submit Documentation Feedback Copyright 2017 2018 Texas Instruments Incorporated UCC5390SCD With Isolated Bias Supply Figure 12 Inductor Current Red Drain Source Pink and Gate Source Drive Voltages Blue and Green at 800 V Input 1 0 A Output ...

Page 19: ...ower Down 19 SLLU282A December 2017 Revised February 2018 Submit Documentation Feedback Copyright 2017 2018 Texas Instruments Incorporated UCC5390SCD With Isolated Bias Supply Figure 13 Expanded Hard 71 V per ns Switching Waveforms During Vds Rise ...

Page 20: ...w ti com 20 SLLU282A December 2017 Revised February 2018 Submit Documentation Feedback Copyright 2017 2018 Texas Instruments Incorporated UCC5390SCD With Isolated Bias Supply Figure 14 Expanded Soft 3 4 V per ns Switching Waveforms During Vds Fall ...

Page 21: ...90SCD With Isolated Bias Supply 7 Bias Supply Performance This section shows the bias supply efficiency voltage regulation and switching waveforms at different configurations These measurements have been fulfilled only with the bias supply components populated onboard to avoid the impact of the driver circuit Figure 15 Bias Supply Efficiency at Different Configurations ...

Page 22: ... com 22 SLLU282A December 2017 Revised February 2018 Submit Documentation Feedback Copyright 2017 2018 Texas Instruments Incorporated UCC5390SCD With Isolated Bias Supply Figure 16 Bias Supply Regulation at Different Configurations ...

Page 23: ...rmance 23 SLLU282A December 2017 Revised February 2018 Submit Documentation Feedback Copyright 2017 2018 Texas Instruments Incorporated UCC5390SCD With Isolated Bias Supply Figure 17 Bias Supply Secondary Side Switching Waveforms ...

Page 24: ... Wurth Electronic C5 1 100 pF 0603 0603ZC102KAT2A AVX Capacitor ceramic 1 PF 10 V 10 X7R 0603 885012206008 Wurth Electronic D5 1 4 3 V SOD 523 BZT52C4V3T 7 Diodes Inc Diode Zenner 4 3 V 300 mW SOD 523 D1 D2 D3 D4 4 40 V SOD 523 B0540WS 7 Diodes Inc Diode Schottky 40 V 0 5 A SOD 323 J1 1 TSW 104 08 G S RA Samtec Header 100 mill 4 1 Gold R A TH 61300411021 Wurth Electronic Q1 N P Footprint only C2M1...

Page 25: ...December 2017 Revised February 2018 Submit Documentation Feedback Copyright 2017 2018 Texas Instruments Incorporated UCC5390SCD With Isolated Bias Supply 9 Layout Diagrams Figure 18 Top Solder Mask Figure 19 Top Layer Figure 20 Bottom Layer ...

Page 26: ... 26 SLLU282A December 2017 Revised February 2018 Submit Documentation Feedback Copyright 2017 2018 Texas Instruments Incorporated UCC5390SCD With Isolated Bias Supply Figure 21 Bottom Solder Mask Figure 22 Mechanical Dimensions ...

Page 27: ... February 2018 Submit Documentation Feedback Copyright 2017 2018 Texas Instruments Incorporated UCC5390SCD With Isolated Bias Supply Figure 23 Assembly Drawings 10 References Texas Instruments UCC5390 Product Folder Texas Instruments SN6505B Product Folder ...

Page 28: ...ory NOTE Page numbers for previous revisions may differ from page numbers in the current version Changes from Original December 2017 to A Revision Page Changed Expanded Hard 71 V per ns Switching Waveforms During 3 4 V per ns Vds Fall image to Expanded Soft 3 4 V per ns Switching Waveforms During Vds Fall image 20 Added alternate part number and alternate manufacturer columns to BOM 24 ...

Page 29: ...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...

Page 30: ...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...

Page 31: ...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 ...

Page 32: ...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...

Page 33: ... TI Resource NO OTHER LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD PARTY IS GRANTED HEREIN including but not limited to any patent right copyright mask work right or other intellectual property right relating to any combination machine or process in which TI product...

Page 34: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments UCC5390SCDEVM 010 ...

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