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Texas Instruments SN6507DGQEVM, User Manual, Page: 10 / 18

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Texas Instruments SN6507DGQEVM User Manual Download Page 10

6 EVM Schematic and PCB

Figure 6-1

 shows the schematic diagram for this EVM, and 

Figure 6-2

 and 

Figure 6-3

 show the printed circuit board (PCB) layout.

GND

GND

R11

R10

C11

C12

GND

GND

ISO_GND

GND

2

1

D1

PMEG200G20ELRX

TP7
+VOUT

TP8
GND_OUT

TP9
-VOUT

TP4
GND

1

2

3

J5

1

2

3

J14

EN_High

EN_Low

EXT_CLK

CLK_adjust. (RCLK)

GND

ISO_GND

2

1

D5

PMEG200G20ELRX

2

1

D4

PMEG200G20ELRX

2

1

D2

PMEG200G20ELRX

VCC

3

SW1

1

SW2

10

CLK

7

DC

5

EN/UVLO

4

SR

6

SS/ILIM

8

GND

2

GND

9

EP

11

SN6507DGQ

U2

TP1
VIN

TP5
GND

EN/UVLO_IN

CLK_GND (default)

GND

GND

18.2k

Rilim

GND

1

2

J8

1

2

J11

50.5k

Rdc

10V
2.2uF

Css

Vout = 1.25V x (1+R5/R4) + (50uA x R5)

1
2

J2

1751248

GND

GND

VIN

Input Power

SN6507 Vcc range 3V-36V

10uF

C3

1µF

C4

IN

3

OUT

4

1

ADJ

LM317AMDT/NOPB

U1

1

2

J1

1751248

Output Power

10k

R3

240

R4

0

R1

VIN

100nF

C5

10uF

C13

VIN

VLDO in 4.25V-40V

1

2

3

J6

1

2

3

4

5

6

J10

TSM-103-01-L-DV

1

2

J4

+VOUT_LDO_IN

10uF

C8

10uF

C17

1uF

C9

1uF

C18

1

2
3

J13

DC_48% (default)

DC Control

GND

GND

ISO_GND

TP2

+VOUT_LDO

TP3
GND_OUT

15V R option

12V R option

R5 = (Vout-1.25) / ([1.25/R4]+50uA)

DNP R option

2.61k

R5A

2.05k

R5B

0

R5C

1

2

3

4

5

6

J3

TSM-103-01-L-DV

ISO_GND

TP10
CLK_IN

TP6

EN_IN

499k

Ruv1

100k

Ruv2

10uF

C7

ISO_GND

10uF

C2

10k

R2

0

R9

20.5k

Rsr

1

2
3

J9

Default SR

SR adjust.

SR Control

L1

L2

100nF

C14

100nF

C1

100nF

C10

100nF

C19

1

2

3

6

5

4

T1

750319696

36V

D3

36V

D6

1

2
3

4

5

6

7

8

ZB1459-BE

1

2

J7

1

2

J12

ISO_GND

XP5

XP6

XP4

XP3

XP2

XP1

VIN

XP1

XP2

XP3

XP4

XP5

XP6

XP1

XP2

XP3

XP6

XP5

XP4

1

2

3

6

5

4

PAG6356.086NLT

Extra Transformer Footprints

SN6507 Circuit

36V

D7

1

2

4

8

7

5

3

6

SM91207L

XP1

XP2

XP3

XP6

XP5

XP4

6

4

3

1

2

5

B1807127

IN

4

IN

5

GND

1

GND

2

IN

6

GND

3

PAD

7

TVS3300DRVR

U3

XP1

XP2

XP3

XP6

XP5

XP4

GND

0

Rclk

DC adjust.

0

R6

0

R7

0

R8

100nF

C6

+VOUT

GND_OUT

-VOUT

GND_OUT

GND_OUT

0

R15

GND_OUT

0

R14

ISO_GND

GND

0

R16

+VOUT_LDO_IN

62pF

C15

62pF

C16

100

R13

100

R12

Rclk, Rsr, Rdc, Rilim, Css can be adjusted per
SN6507 datasheet

Populate D1 and D4 for -Viso
output

J4 jumper:
populated = +Vout LDO ON
DNP = LDO bypassed

J7 jumper:
populated = L1 bypassed no DC CTRL
DNP = L1 for DC CTRL

J12 jumper:
populated = L1 bypassed no DC CTRL
DNP = L1 for DC CTRL

Figure 6-1. SN6507DGQEVM Schematic

Bill of Materials

www.ti.com

10

SN6507DGQEVM Low-Emissions 500 mA Push-Pull Transformer Driver for Isolated Power Supplies 
Evaluation Module

SLLU346 – APRIL 2022

Submit Document Feedback

Copyright © 2022 Texas Instruments Incorporated

Summary of Contents for SN6507DGQEVM

Page 1: ...tion 4 4 EVM Configuration Options 5 5 Bill of Materials 8 6 EVM Schematic and PCB 10 List of Figures Figure 2 1 SN6507DGQEVM Radiated Emissions Sweep at Full Load per CISPR 32 Class B 3 Figure 3 1 Basic SN6507DGQEVM Operation 4 Figure 4 1 SN6507 Pinout 5 Figure 4 2 SN6507DGQEVM Top View 5 Figure 6 1 SN6507DGQEVM Schematic 10 Figure 6 2 SN6507DGQEVM Top PCB Layout 11 Figure 6 3 SN6507DGQEVM Bottom...

Page 2: ...and 8 pin packages that fit on the PCB s T1 footprint Isolated power supplies help block high voltages and prevent noise currents from entering isolated grounds and interfering with or damaging sensitive circuitry They are required to preserve an isolation barrier in systems using isolated devices requiring discrete power supplies The complementary output signals SW1 and SW2 from the SN6507 are gr...

Page 3: ...acteristics such as enable delay rise and fall times soft start duration and power consumption for different load conditions This EVM offers provisions for a wide range of configurations as detailed in Section 4 www ti com Overview SLLU346 APRIL 2022 Submit Document Feedback SN6507DGQEVM Low Emissions 500 mA Push Pull Transformer Driver for Isolated Power Supplies Evaluation Module 3 Copyright 202...

Page 4: ...f T1 This EVM can also be configured for evaluation of various transformers and voltage input and output combinations by replacing the included push pull transformer device in place of T1 A list of recommended commercially available transformers is listed in the SN6507 datasheet Figure 3 1 shows the basic setup of the EVM with an input power supply needed to evaluate device performance Power this ...

Page 5: ...y commercially available push pull isolation transformers The EVM PCB is shown in Figure 4 2 Figure 4 2 SN6507DGQEVM Top View Details for the various configuration options of the SN6507 EVM are listed below Pin configurations using RCs Configuration options for pin adjustable features of SN6507 including Enable UVLO SW1 SW2 switching frequency CLK duty cycle control slew rate adjustment soft start...

Page 6: ...oubling outputs using the Vout net by populating D1 and D4 on the EVM Make sure the output LDO U1 is bypassed by disconnecting pins 1 2 of J4 if R9 is removed since the ISO_GND potential will be floating Ferrite bead options To reduce emissions when power supply outputs are connected to long cables or have high ringing ferrites can be soldered in place of R15 R14 R6 R7 and R8 A ferrite with 1 kΩ i...

Page 7: ... 2 of J9 to use the default switching slew rate of SN6507 or connect pins 2 3 to adjust the slew rate using RSR If J9 is completely disconnected SN6507 will use its default slew rate J10 1 MHz ADJ CLK_IN Connect pins 5 6 of J10 for SN6507 to use the internal 1 MHz clock for switching SW1 and SW2 Connect pins 3 4 of J10 to use an adjustable clock value based on the resistance of RCLK Connect pins 1...

Page 8: ... 200 V 58 pF CFP3 PMEG200G20ELRX Nexperia H1 H2 H3 H4 4 Bumpon Hemisphere 0 44 X 0 20 Clear Transparent Bumpon SJ 5303 CLEAR 3M J1 J2 J8 J11 4 Conn Term Block 2POS 3 5 mm TH 11x8 5x7 3 mm 1751248 Phoenix Contact J3 J10 2 Header 2 54 mm 3x2 Gold SMT Header 2 54 mm 3x2 SMT TSM 103 01 L DV Samtec J4 J7 J12 3 Header 2 54 mm 2x1 Gold SMT Header 2 54 mm 2x1 SMT 61000218321 Wurth Elektronik J6 J9 J13 3 H...

Page 9: ...hunt 2 pos 100 mil 881545 2 TE Connectivity T1 1 24 V 15 V TRANSFORMER SMT_XFRMR_9MM45_8MM50 750319696 Wurth T1 0 Push Pull Transformer ER9 5 SMD8 24Vin 1 MHz Output 15 V 0 5 A SMT_XFRMR_12MM07_10MM3 TX1 ZB1459 BE Coilcraft T1 0 XFMR PUSH PULL 10 W 120 V USEC EP7 SMT SMT_XFRMR_10MM3_13MM2 PAG6356 086NLT Pulse Electronics T1 0 Transformer Turns Ratio 0 733 430uH 2 5kVAC 13 2x11 8x11 1mm SMT_XFRMR_1...

Page 10: ...J3 TSM 103 01 L DV ISO_GND TP10 CLK_IN TP6 EN_IN 499k Ruv1 100k Ruv2 10uF C7 ISO_GND 10uF C2 10k R2 0 R9 20 5k Rsr 1 2 3 J9 Default SR SR adjust SR Control L1 L2 100nF C14 100nF C1 100nF C10 100nF C19 1 2 3 6 5 4 T1 750319696 36V D3 36V D6 1 2 3 4 5 6 7 8 ZB1459 BE 1 2 J7 1 2 J12 ISO_GND XP5 XP6 XP4 XP3 XP2 XP1 VIN XP1 XP2 XP3 XP4 XP5 XP6 XP1 XP2 XP3 XP6 XP5 XP4 1 2 3 6 5 4 PAG6356 086NLT Extra Tr...

Page 11: ...yout www ti com Bill of Materials SLLU346 APRIL 2022 Submit Document Feedback SN6507DGQEVM Low Emissions 500 mA Push Pull Transformer Driver for Isolated Power Supplies Evaluation Module 11 Copyright 2022 Texas Instruments Incorporated ...

Page 12: ...Layout Bill of Materials www ti com 12 SN6507DGQEVM Low Emissions 500 mA Push Pull Transformer Driver for Isolated Power Supplies Evaluation Module SLLU346 APRIL 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 13: ...other 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 techniques are used to the extent TI deems necessary TI does not test all parameters of each EVM User s claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects...

Page 14: ... 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 installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation...

Page 15: ...y for convenience and should be verified by User 1 Use EVMs in a shielded room or any other test facility as defined in the notification 173 issued by Ministry of Internal Affairs and Communications on March 28 2006 based on Sub section 1 1 of Article 6 of the Ministry s Rule for Enforcement of Radio Law of Japan 2 Use EVMs only after User obtains the license of Test Radio Station as provided in R...

Page 16: ... 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 electrical shock hazard User assumes all responsibility and liability for any improper or unsafe handling or use of the EVM by User or its employees affiliates contractors or designees 4 4 User assumes all...

Page 17: ...OR 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 Furthermore no return of EVM s will be accepted if the package has been opened and no return of the EVM s will be accepted if they are damaged or otherwise not in a resalable condition If User feels it has...

Page 18: ...o 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 and you will fully indemn...

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