Texas Instruments TPS23758EVM-080 User Manual Download Page 23

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Regulatory Notices:

3.1

United States

3.1.1

Notice applicable to EVMs not FCC-Approved:

FCC NOTICE:

This kit is designed to allow product developers to evaluate electronic components, circuitry, or software

associated with the kit to determine whether to incorporate such items in a finished product and software developers to write
software applications for use with the end product. This kit is not a finished product and when assembled may not be resold or
otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition
that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference.
Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must
operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter.

3.1.2

For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant:

CAUTION

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to
operate the equipment.

FCC Interference Statement for Class A EVM devices

NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.

FCC Interference Statement for Class B EVM devices

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. 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. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

3.2

Canada

3.2.1

For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210 or RSS-247

Concerning EVMs Including Radio Transmitters:

This device complies with Industry Canada license-exempt RSSs. Operation is subject to the following two conditions:

(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.

Concernant les EVMs avec appareils radio:

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation
est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit
accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

Concerning EVMs Including Detachable Antennas:

Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser)
gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for
successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types
listed in 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.

Summary of Contents for TPS23758EVM-080

Page 1: ...s Figure 4 1 TPS23758EVM 080 Schematic 4 Figure 6 1 Startup Response When Connected to a PoE PSE TPS23880 6 Figure 6 2 DCDC Startup 6 Figure 6 3 Transient Response from 100 mA to 1 A for a 48 V Input...

Page 2: ...IN TYP MAX UNIT POWER INTERFACE Input voltage Applied to the power pins of connectors J1 37 57 V Applied to the power pins of connectors J4 48 V Input UVLO POE input J1 Rising input voltage 36 V Falli...

Page 3: ...from a DC source when power at J1 is not present The TPS23758 U1 PD and DC to DC converter circuitry is shown in Figure 4 1 R17 provides the detection signature The switched side of the PD controller...

Page 4: ...ic Figure 4 1 TPS23758EVM 080 Schematic Schematic www ti com 4 TPS23758EVM 080 Evaluation Module SLVUBO2B APRIL 2019 REVISED DECEMBER 2020 Submit Document Feedback Copyright 2020 Texas Instruments Inc...

Page 5: ...o visually indicate the output voltage J6 FREQ Jump to Fixed for fixed frequency Jump to Dither to enable spread spectrum dithering Table 5 2 Test Points Test Point Label Description TP1 BS Bob Smith...

Page 6: ...e of the TPS23758EVM 080 Figure 6 1 Startup Response When Connected to a PoE PSE TPS23880 Figure 6 2 DCDC Startup TPS23758EVM 080 Performance Data www ti com 6 TPS23758EVM 080 Evaluation Module SLVUBO...

Page 7: ...S23758EVM 080 Figure 6 3 Transient Response from 100 mA to 1 A for a 48 V Input www ti com TPS23758EVM 080 Performance Data SLVUBO2B APRIL 2019 REVISED DECEMBER 2020 Submit Document Feedback TPS23758E...

Page 8: ...TPS23758EVM 080 Figure 6 4 Efficiency of the TPS23758EVM 080 TPS23758EVM 080 Performance Data www ti com 8 TPS23758EVM 080 Evaluation Module SLVUBO2B APRIL 2019 REVISED DECEMBER 2020 Submit Document F...

Page 9: ...5 Recovery from VOUT Short Figure 6 6 DCDC Recovery from Output Short www ti com TPS23758EVM 080 Performance Data SLVUBO2B APRIL 2019 REVISED DECEMBER 2020 Submit Document Feedback TPS23758EVM 080 Ev...

Page 10: ...re 6 7 SRF 0 Figure 6 8 SRF 100 TPS23758EVM 080 Performance Data www ti com 10 TPS23758EVM 080 Evaluation Module SLVUBO2B APRIL 2019 REVISED DECEMBER 2020 Submit Document Feedback Copyright 2020 Texas...

Page 11: ...0 Figure 6 10 SRR 10 www ti com TPS23758EVM 080 Performance Data SLVUBO2B APRIL 2019 REVISED DECEMBER 2020 Submit Document Feedback TPS23758EVM 080 Evaluation Module 11 Copyright 2020 Texas Instrument...

Page 12: ...ement and layout of the TPS23758EVM 080 Figure 7 1 Top Side Component Placement Figure 7 2 Layer 2 Routing EVM Assembly Drawings and Layout Guidelines www ti com 12 TPS23758EVM 080 Evaluation Module S...

Page 13: ...re 7 4 Bottom Side Routing www ti com EVM Assembly Drawings and Layout Guidelines SLVUBO2B APRIL 2019 REVISED DECEMBER 2020 Submit Document Feedback TPS23758EVM 080 Evaluation Module 13 Copyright 2020...

Page 14: ...en the 48 V input voltage rails and between the input and an isolated converter output Use large copper fills and traces on SMT power dissipating devices and use wide traces or overlay copper fills in...

Page 15: ...CB creating a phantom or literal earth ground Use LC filter at DC to DC input Dampen high frequency ringing on all switching nodes if present allow for possible snubbers Control rise times with gate d...

Page 16: ...P AL 22 uF 100 V 20 1 3 ohm AEC Q200 Grade 2 SMD SMT Radial F EEE FK2A220P Panasonic C9 C12 C21 C23 4 0 1 uF CAP CERM 0 1 uF 100 V 10 X7R 0805 0805 C2012X7R2A104 K125AA TDK C10 C11 2 2 2 uF CAP CERM 2...

Page 17: ...1 0603 0603 CGA3E2X7R1E1 04K080AA TDK D1 D2 D10 3 100 V Diode Switching 100 V 0 2 A SOD 123 SOD 123 MMSD4148T1G ON Semiconductor D3 D4 2 12 V Diode Zener 12 V 500 mW SOD 123 SOD 123 MMSZ5242B 7 F Diod...

Page 18: ...ohm Ferrite Bead 100 ohm 100 MHz 1 A 0603 0603 MPZ1608D101B TD25 TDK Q1 1 30 V MOSFET N CH 30 V 20 A DNH0008A VSONP 8 DNH0008A CSD17579Q3A Texas Instruments None R1 R2 R3 R6 4 75 0 RES 75 0 1 0 1 W 0...

Page 19: ...402 CRCW0402200K FKED Vishay Dale R23 1 237 k RES 237 k 1 0 063 W AEC Q200 Grade 0 0402 0402 CRCW0402237K FKED Vishay Dale R24 1 36 5 k RES 36 5 k 1 0 063 W AEC Q200 Grade 0 0402 0402 CRCW040236K5 FKE...

Page 20: ...12 4 Test Point Miniature Black TH Black Miniature Testpoint 5001 Keystone TP9 TP13 2 Test Point Miniature Orange TH Orange Miniature Testpoint 5003 Keystone TP11 1 Test Point Miniature White TH White...

Page 21: ...Revision B December 2020 Page Updated the numbering format for tables figures and cross references throughout the document 2 Updated Schematic 4 Updated Bill of Materials 16 www ti com Revision Histor...

Page 22: ...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 23: ...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 24: ...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 25: ...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 26: ...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 27: ...e 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 reprod...

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