Texas Instruments LMR36503RFEVM Скачать руководство пользователя страница 11

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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.

Содержание LMR36503RFEVM

Страница 1: ...synchronous step down DC DC converter capable of driving up to 0 3 A of load current from an input voltage of up to 65 V The LMR36503RFEVM features an output voltage of 3 3 V or 5 V and a switching frequency of 1 MHz See the LMR36503 3 V 65 V 0 3 A Ultra Small Synchronous Buck Converter with Ultra Low IQ data sheet for additional features detailed descriptions and available options Table 1 Device ...

Страница 2: ... 7 5 Bill of Materials 9 List of Figures 1 LMR36503RFEVM Board 1 2 EVM Board Connections 3 3 Jumper Locations 4 4 LMR36503RFEVM Schematic 6 5 Top View of EVM 7 6 EVM Top Copper Layer 7 7 EVM Mid Layer One 7 8 EVM Mid Layer Two 8 9 EVM Bottom Copper Layer 8 List of Tables 1 Device and Package Configurations 1 2 Bill Of Materials 9 Trademarks All trademarks are the property of their respective owner...

Страница 3: ...round connection VIN Input supply to the IC Can be connected to DMM to measure input voltage after EMI filter VOUT Output voltage test point of EVM Can be connected to a desired load EN This test point is connected to the EN pin By default there is a pullup resistor R2 RENT to VIN to enable the IC PGOOD This test point is connected to the PGOOD pin from the IC It is an open drain output of the PGO...

Страница 4: ...this jumper to select the mode of operation in a MODE SYNC trim part Connecting a jumper between pin 1 and 2 cause the IC to operate in PFM Pulse Frequency Modulation mode for a higher efficiency at light load A jumper between pin 2 and pin 3 causes the IC to operate in FPWM mode Forced Pulse Width Modulation mode By default the jumper is connected between pin 1 and 2 In an RT trim part connecting...

Страница 5: ...n the VIN_EMI and GND test points 2 Connect the load between the VOUT and GND test points 3 Set the supply voltage at an appropriate level between 5 5 V to 65 V Set the current limit of the supply to an appropriate level 4 Turn on the power supply With the default configuration the EVM powers up and provides VOUT 3 3 V 5 Monitor the output voltage The maximum load current must be 0 3 A with the LM...

Страница 6: ...RFBT GND 22uF C5 COUT1 22uF C10 COUT2 DNP 10pF C13 CFF DNP 0 R4 RMODE VOUT 3 3V B A VIN VINEMI GND VOUT VOS AGND TP13 VCC TP12 SW TP14 GND 43 2k R7 RFBB1 59 0k R10 RFBB2 1 2 J4 JVOUT RT 1 PGOOD 2 EN UVLO 3 VIN 4 SW 5 BOOT 6 VCC 7 FB 8 GND 9 LMR36503RFRPET U1 39 2k R5 RT DNP 47uH L1 1 2 3 4 5 6 7 8 9 10 11 12 A B C D E F H J K L M N TOP BOT EC1 305 024 521 201 0 1uF C3 CB SH J1 SNT 100 BK G Assembl...

Страница 7: ... 7 SNVU672 February 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated LMR36503RFEVM User s Guide 4 Board Layout Figure 5 Top View of EVM Figure 6 EVM Top Copper Layer Figure 7 EVM Mid Layer One ...

Страница 8: ...d Layout www ti com 8 SNVU672 February 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated LMR36503RFEVM User s Guide Figure 8 EVM Mid Layer Two Figure 9 EVM Bottom Copper Layer ...

Страница 9: ... 102 07 G S 2 L1 MSS6132 473MLB Inductor Shielded Drum Core Ferrite 47 µH 0 93 A 0 38 Ω SMD Coilcraft MSS6132 473MLB 1 L2 FBMH3225HM601 NT Ferrite Bead 600 Ω at 100 MHz 3 A 1210 Taiyo Yuden FBMH3225HM601NT 1 LBL1 THT 14 423 10 Thermal Transfer Printable Labels 0 650 W x 0 200 H 10 000 per roll Brady THT 14 423 10 1 R1 RENB RES 100 k 1 0 063 W AEC Q200 Grade 0 0402 Vishay Dale CRCW0402100KFKED 0 R2...

Страница 10: ...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...

Страница 11: ... 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...

Страница 12: ...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...

Страница 13: ... 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...

Страница 14: ...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...

Страница 15: ...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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