Texas Instruments TPS40195 Скачать руководство пользователя страница 19

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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 TPS40195

Страница 1: ...d TP9 10 6 5 Switch Node TP4 and SYNC TP12 10 6 6 Equipment Shutdown 10 7 TPS40195EVM Typical Performance Data and Characteristic Curves 11 7 1 Line and Load Regulation 11 7 2 Efficiency 11 7 3 Output...

Страница 2: ...12 V bus to low voltage application while providing a number of test points to evaluate the performance of the TPS40195 in a given application 2 1 Applications Non isolated medium current point of lo...

Страница 3: ...0 to 20 A 0 5 VOUTpp Output voltage ripple VIN 12 V IOUT 20 A 50 mVpp IOUT Output current VIN 8 V to 20 V 0 20 20 A IOCP Output overcurrent inception point VIN 12 V 20 5 TRANSIENT RESPONSE I Load step...

Страница 4: ...chematic for Reference Only See Table 9 1 List of Materials for Specific Values Schematic www ti com 4 TPS40195 Buck Controller Evaluation Module User s Guide SLUU297B DECEMBER 2007 REVISED JANUARY 20...

Страница 5: ...OAD1 should be an electronic constant current mode load capable of 0 ADC to 20 ADC at 3 3 V 5 1 4 Oscilloscope Oscilloscope A digital or analog oscilloscope can be used to measure the ripple voltage o...

Страница 6: ...400 LFM is required to reduce component surface temperatures to prevent user injury The EVM should not be left unattended while powered The EVM should not be probed while the fan is not running Test...

Страница 7: ...connected as shown in Figure 5 1 3 Connect the ammeter A1 0 A to 20 A range between VIN and J1 as shown in Figure 5 1 4 Connect voltmeter V1 to TP1 and TP2 as shown in Figure 5 1 5 Connect LOAD1 to J3...

Страница 8: ...the oscilloscope probe tip through TP5 and hold the ground barrel to TP13 as shown in Figure 6 1 For a hands free approach the loop in TP13 can be cut and opened to cradle the probe barrel V2 can hav...

Страница 9: ...ep frequency from 100 Hz to 1 MHz with 10 Hz or lower post filter 7 Control loop gain can be measured by 20 Log ChannelB ChannelA 8 Control loop phase is measured by the phase difference between Chann...

Страница 10: ...Bandwidth AC coupling 1 s div horizontal resolution 5 V div vertical resolution 3 Increase VIN to 12 V 4 Set LOAD1 to 10 A 5 Vary LOAD1 and observe the oscilloscope 6 Vary VIN and observe the oscillos...

Страница 11: ...33 3 31 OUTPUT VOLTAGE vs LOAD CURRENT 12 16 18 20 8 8V 12V 20V 3 28 3 32 Figure 7 1 TPS40195EVM Line and Load Regulation VIN 8 V to 20 V VOUT 3 3 V IOUT 0 A to 20 A 7 2 Efficiency 0 h Efficiency 60...

Страница 12: ...UT 20 A to 4 A Ch1 IOUT Ch2 VOUT Figure 7 5 TPS40195EVM Transient Response VIN 12 V IOUT 4 A to 20 A Ch1 IOUT Ch2 VOUT TPS40195EVM Typical Performance Data and Characteristic Curves www ti com 12 TPS4...

Страница 13: ...requency 60 45 30 15 0 15 30 45 60 100 1000 10000 100000 1000000 Frequency Hz Gain dB 0 45 90 135 180 Phase Gain Phase Figure 7 7 TPS40195EVM Bode Plot VIN 12 V IOUT 0 A Crossover Frequency 46 kHz Pha...

Страница 14: ...TP1 VIN Ch2 TP5 VOUT Ch3 TP11 ENABLE Ch4 TP9 Power Good Figure 7 10 TPS40195EVM Switching Waveform Ch1 TP4 and Synchronization Ch2 TP12 VIN 12 V IOUT 10 A fSYNC 400 kHz TPS40195EVM Typical Performanc...

Страница 15: ...mponents to both sides of the PCB or using additional internal layers can offer additional size reduction for space constrained systems Figure 8 1 TPS40195EVM Component Placement Viewed from Top Figur...

Страница 16: ...ray Viewed from Top EVM Assembly Drawings and Layout www ti com 16 TPS40195 Buck Controller Evaluation Module User s Guide SLUU297B DECEMBER 2007 REVISED JANUARY 2022 Submit Document Feedback Copyrig...

Страница 17: ...RF7832 3 R1 R10 R12 Resistor chip 100 k 1 16 W 1 Std Std 1 R11 Resistor chip 1 30 k 1 16 W 1 Std Std 1 R13 Resistor chip 3 01 k 1 16 W 1 Std Std 1 R14 Resistor chip 22 1 k 1 16 W 1 Std Std 1 R17 Resis...

Страница 18: ...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...

Страница 19: ...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...

Страница 20: ...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...

Страница 21: ...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...

Страница 22: ...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...

Страница 23: ...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 thes...

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