Texas Instruments LM3248 User Manual Download Page 14

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

Concerning EVMs Including Radio Transmitters:

This device complies with Industry Canada license-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.

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.

Concernant les EVMs avec antennes détachables

Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et
d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage
radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope
rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le
présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le
manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne
non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de
l'émetteur

3.3

Japan

3.3.1

Notice for EVMs delivered in Japan:

Please see

http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page

日本国内に

輸入される評価用キット、ボードについては、次のところをご覧ください。

http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page

3.3.2

Notice for Users of EVMs Considered “Radio Frequency Products” in Japan:

EVMs entering Japan may not be certified

by TI as conforming to Technical Regulations of Radio Law of Japan.

If User uses EVMs in Japan, not certified to Technical Regulations of Radio Law of Japan, User is required by Radio Law of
Japan to follow the instructions below with respect to EVMs:

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 Radio Law of Japan with respect to
EVMs, or

3.

Use of EVMs only after User obtains the Technical Regulations Conformity Certification as provided in Radio Law of Japan
with respect to EVMs. Also, do not transfer EVMs, unless User gives the same notice above to the transferee. Please note
that if User does not follow the instructions above, User will be subject to penalties of Radio Law of Japan.

SPACER

SPACER

SPACER

SPACER

SPACER

Summary of Contents for LM3248

Page 1: ...Using the LM3248 Evaluation Module User s Guide Literature Number SNAA196 September 2013 All trademarks are the property of their respective owners ...

Page 2: ...ides the RF power subsystem the capability to operate at lower battery voltages as well as increased PA linearity and transmit power margins over a wider battery voltage supply range This application note contains information specific to the evaluation board For device details and electrical characteristics please refer to the LM3248 data sheet If you are considering using the LM3248 in a system d...

Page 3: ...Black Machine Screw Roun 4 B F Fastener H1 H2 H3 H4 4 40 x 1 4 Nylon Philips NY PMS 440 0025 PH Digi Key Supply panhead Standoff Hex 0 5 L 4 40 H5 H6 H7 H8 4 Keystone 1902C Digi Key x 1 4 Nylon Inductor Shielded Metal L1 1 Composite 1µH 2 6A Toko 1276AS H 1R0N See Mfr 0 062Ω 3225 Inductor Shielded Metal L3 1 Composite 1 5µH 1 6A Toko 1285AS H 1R5M See Mfr 0 144Ω 2016 Header shrouded 100 mil TE P1 ...

Page 4: ...igi Key 0402 Not installed 3 5A Ferrite FB1 FB2 2 Bead 60Ω 100MHz TDK MPZ1608S600A Digi Key Mouser SMD 6 LM3248 Evaluation Module Photo Figure 1 LM3248 Evaluation Board 4 LM3248 2 7MHz 2 5A Boost Buck DC DC Converter Evaluation Module SNAA196 September 2013 Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated ...

Page 5: ...sure the signal sources are first set to 0V NOTE BOOST_GATE is a logic level signal see the LM3248 data sheet which represents the TTI frame interval A pulse or function generator should be used to drive this pin but should be configured to drive a high impedance load so that the level seen on the instrument panel is the same as that measured into a high Z load 50Ω mode will put out 2X the indicat...

Page 6: ... the signal The adjacent undotted is the ground pin Test Points PVIN BST Boost input node VBATT connection SW BST Boost switch node BST_OUT Boost output node SW BUCK Buck switch node BK OUT Buck output note Jumpers see Figure 8 for locations LBST Boost inductor jumper L BUCK Buck inductor jumper ACB ACB jumper 6 LM3248 2 7MHz 2 5A Boost Buck DC DC Converter Evaluation Module SNAA196 September 2013...

Page 7: ...n Board Layout Figure 2 Top Layer Figure 3 Bottom Layer Figure 4 Mid Layer 1 Figure 5 Mid Layer 2 7 SNAA196 September 2013 LM3248 2 7MHz 2 5A Boost Buck DC DC Converter Evaluation Module Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated ...

Page 8: ...rd Layout www ti com Figure 6 Mid Layer 3 Figure 7 Mid Layer 4 Figure 8 Bottom Layer Mirrored 8 LM3248 2 7MHz 2 5A Boost Buck DC DC Converter Evaluation Module SNAA196 September 2013 Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated ...

Page 9: ...LM3248 Evaluation Board Layout Figure 9 Stackup 9 SNAA196 September 2013 LM3248 2 7MHz 2 5A Boost Buck DC DC Converter Evaluation Module Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated ...

Page 10: ... 0201 C3 1000pF 0201 C9 0402 10µF C1 10µF 0402 C7 1 2 DNI FB1 DNI 1000pF 0201 C34 GND 0201 0 01µF C20 GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND BG MODE 499 0201 R6 499 0201 R7 499 0201 R3 01005 3300pF C16 GND 1µF 0201 C18 01005 3300pF C19 2 2µF 0402 C21 DNI 4 7µF 0402 C17 DNI 0 DNI 0402 R2 1 2 OUT_BST 1 2 LBST 1 2 ACB 1 2 VCON_S 1 2 L BUCK 470µF C5 BUCK_OUT 1 2 BST_OUT 1 2 SW BST...

Page 11: ... BOOST PVIN_ BOOST OUT_ BOOST FB_ BUCK SW_ BUCK NC ENABLE PVIN_ BOOST MODE ACB DGND PVIN_ BUCK ACB SGND_ BUCK SW_ BOOST PGND VDD2_ BUCK PGND OUT_ BOOST 5 4 3 2 1 A B C D E F SW_ BOOST VDD1_ BUCK PGND VCON SW_ BUCK PVIN_ BUCK ATB1 ATB2 www ti com Connection Diagram 13 Connection Diagram Figure 10 Top View Bumps Down Figure 11 Bottom View Bumps Up 11 SNAA196 September 2013 LM3248 2 7MHz 2 5A Boost B...

Page 12: ...CK when used with Boost C3 SGND_BUCK Analog Ground for the Buck Analog Blocks C4 C5 PGND Power Ground for output FETs F3 Input Chip enable Setting ENABLE High biases up the Buck and initiates D1 ENABLE I VCON regulation by the Buck D2 VCON I Analog voltage control input which controls Buck output voltage D3 NC No Connect leave this pin floating D4 SW_BUCK 0 Buck converter switch node for external ...

Page 13: ...ring 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 warranted for the remainder of the original warranty period Replaced EVMs shall be warranted for a new full ninety 90 day warranty period 3 ...

Page 14: ... 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 Concernant les EVMs avec antennes détachables Conformément à la rég...

Page 15: ... 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 with the inputs and outputs kept within the specified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors cu...

Page 16: ...F 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 ONE YEAR AFTER THE RELATED CAUSE OF ACTION HAS OCCURRED 8 2 Specific Limitations IN NO EVENT SHALL T...

Page 17: ...esponsible 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 information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failur...

Reviews: