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RADIO FREQUENCY REGULATORY COMPLIANCE INFORMATION FOR EVALUATION MODULES

Texas Instruments Incorporated (TI) evaluation boards, kits, and/or modules (EVMs) and/or accompanying hardware that is marketed, sold,
or loaned to users may or may not be subject to radio frequency regulations in specific countries.

General Statement for EVMs Not Including a Radio

For EVMs not including a radio and not subject to the U.S. Federal Communications Commission (FCC) or Industry Canada (IC)
regulations, TI intends EVMs to be used only for engineering development, demonstration, or evaluation purposes. EVMs are not finished
products typically fit for general consumer use. EVMs may nonetheless generate, use, or radiate radio frequency energy, but have not been
tested for compliance with the limits of computing devices pursuant to part 15 of FCC or the ICES-003 rules. Operation of such EVMs may
cause interference with radio communications, in which case the user at his own expense will be required to take whatever measures may
be required to correct this interference.

General Statement for EVMs including a radio

User Power/Frequency Use Obligations

: For EVMs including a radio, the radio included in such EVMs is intended for development and/or

professional use only in legally allocated frequency and power limits. Any use of radio frequencies and/or power availability in such EVMs
and their development application(s) must comply with local laws governing radio spectrum allocation and power limits for such EVMs. It is
the user’s sole responsibility to only operate this radio in legally acceptable frequency space and within legally mandated power limitations.
Any exceptions to this are strictly prohibited and unauthorized by TI unless user has obtained appropriate experimental and/or development
licenses from local regulatory authorities, which is the sole responsibility of the user, including its acceptable authorization.

U.S. Federal Communications Commission Compliance

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 could void the user's authority to operate the equipment.

FCC Interference Statement for Class A EVM devices

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 its own expense.

FCC Interference Statement for Class B EVM devices

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.

Industry Canada Compliance (English)

For EVMs Annotated as IC – INDUSTRY CANADA Compliant:

This Class A or B digital apparatus complies with Canadian ICES-003.

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

Concerning EVMs Including Radio Transmitters

This device complies with Industry Canada licence-exempt RSS standard(s). 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.

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 TPS25921XEVM-637

Page 1: ...als BOM 14 List of Figures 1 TPS25921X EVM Schematic 4 2 EVM Setup with Test Equipment 7 3 J3 No Jumper Current Limit 1 5 A Test Auto Retry CH1 10 4 J7 No Jumper Current Limit 1 5A Test with Latch CH2...

Page 2: ...voltage turn off threshold UVLO 4 2 V TYP 0 5 A to 1 5 A programmable current limit Programmable undervoltage lockout overvoltage Programmable VOUT slew rate Latched off TPS25921LD Auto retry TPS2592...

Page 3: ...h current demand from the load S1 and S2 allow U1 and U2 respectively to be RESET or disabled A power good PG indicator is provided by D3 D7 for CH1 and CH2 respectively and circuit faults can be obse...

Page 4: ...00k R11 0 47 F C9 95 3k R12 VIN 4 5V 18V IIN 0 4A 1 6A VOUT 2 4 5V 18V IOUT 2 0 4A 1 6A Red D7 D6 J6 J5 24 9k R13 DNP 4 7 F C12 TP21 GND 1 SS 2 EN UVLO 3 VIN 4 OUT 5 FLTb 6 ILIM 7 OVP 8 U2 TPS25921LD...

Page 5: ...t Points Label Description CH1 TP6 VIN1 CH1 Input power supply to the EVM TP3 EN1 CH1 Active high enable and under voltage input TP22 OVP1 CH1 Active high overvoltage input TP10 IMON1 CH1 Current moni...

Page 6: ...so forth CH1 and CH2 power good indicator This LED turns on from D4 Green D4 VOUT1 if the jumper is installed in position 2 3 VOUT2 if the jumper is installed in position 1 2 4 2 Test Equipment and S...

Page 7: ...S H I F T E N T E R R U N DG ER F I A J BK C L 7M 8N 9O DG DG DG DG T 3U 0V W X Y Z T A B U T I L I Z A T I O N H U B M A U N I C 2 B N C 4 M b s Oscilloscope xx xx xx xx x x xx xx x x Texas Instrume...

Page 8: ...N2 TP19 12 0 5 VDC EN1 TP3 3 84 0 3 VDC EN2 TP16 3 84 0 3 VDC OVP1 TP22 0 988 0 2 VDC OVP2 TP23 0 988 0 2VDC VOUT1 TP5 12 0 5 VDC VOUT2 TP16 12 0 5 VDC FLTb1 TP4 10 6 0 6 VDC FLTb2 TP17 10 6 0 6VDC 0...

Page 9: ...TP5 VOUT1 TP18 VOUT2 Channel 2 5 V div TP6 VIN1 TP19 VIN2 Channel 4 1 A div Input current into J1 ve wire Input current into J5 ve wire Trigger source Channel 4 Trigger level 0 6 A 0 1 A Trigger pola...

Page 10: ...hed off mode and that the FLTb2 RED LED D7 turns ON as shown in Figure 4 The level of the current pulse should match with the load current limit based on the respective jumper setting as shown in Tabl...

Page 11: ...Layout Guidelines 5 1 PCB Drawings Figure 5 through Figure 7 show component placement and layout of the EVM Figure 5 Top Side Placement 11 SLUUB50 August 2014 TPS25921X 637EVM Evaluation Module for TP...

Page 12: ...y Drawings and Layout Guidelines www ti com Figure 6 Top Layer 12 TPS25921X 637EVM Evaluation Module for TPS25921X SLUUB50 August 2014 Submit Documentation Feedback Copyright 2014 Texas Instruments In...

Page 13: ...VM Assembly Drawings and Layout Guidelines Figure 7 Bottom Layer 13 SLUUB50 August 2014 TPS25921X 637EVM Evaluation Module for TPS25921X Submit Documentation Feedback Copyright 2014 Texas Instruments...

Page 14: ...1 0 125W 0805 0805 CRCW080595K3FKEA Vishay Dale R4 R15 2 45 3k RES 45 3k ohm 1 0 125W 0805 0805 CRCW080545K3FKEA Vishay Dale R5 R14 2 34 8k RES 34 8k ohm 1 0 125W 0805 0805 CRCW080534K8FKEA Vishay Dal...

Page 15: ...Manufacturer C17 C18 2 1000pF CAP CERM 1000pF 50V 10 X7R 0805 0805 08055C102KAT2A AVX FID1 FID2 FID3 0 Fiducial mark There is nothing to buy or mount Fiducial N A N A R3 R13 0 24 9k RES 24 9k ohm 1 0...

Page 16: ...dling and use of EVMs and if applicable compliance in all respects with such laws and regulations 10 User has sole responsibility to ensure the safety of any activities to be conducted by it and its e...

Page 17: ...his 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 Opera...

Page 18: ...age et ayant un gain admissible maximal et l imp dance requise pour chaque type d antenne Les types d antenne non inclus dans cette liste ou dont le gain est sup rieur au gain maximal indiqu sont stri...

Page 19: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

Page 20: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments TPS25921EVM 637...

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