Texas Instruments TPSM846C23, TPSM846C23DEVM-807 User Manual

User's Guide

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Operating TPSM846C23 in Parallel

This user’s guide contains information for the TPSM846C23DEVM-807 evaluation module (PWR807). Also included are the performance specifications, schematic, bill of materials (BOM), and layout of the EVM.

Contents

1 Description.................................................................................................................... 2

2 Getting Started ............................................................................................................... 2

3 Test Point Descriptions ..................................................................................................... 4

4 Operation Notes.............................................................................................................. 5

5 Performance Data ........................................................................................................... 6

6 Schematic..................................................................................................................... 7

7 Bill of Material ................................................................................................................ 8

8 PCB Layout................................................................................................................... 9

List of Figures

1 EVM User Interface.......................................................................................................... 2

2 Efficiency...................................................................................................................... 6

3 Power Dissipation............................................................................................................ 6

4 Output Voltage Ripple....................................................................................................... 6

5 TPSM846C23DEVM-807 Schematic...................................................................................... 7

6 Top Components ............................................................................................................ 9

7 Topside Copper .............................................................................................................. 9

8 Layer 2 Copper .............................................................................................................. 9

9 Layer 3 Copper .............................................................................................................. 9

10 Layer 4 Copper .............................................................................................................. 9

11 Layer 5 Copper .............................................................................................................. 9

12 Bottom-Side Copper ....................................................................................................... 10

13 Bottom Components ....................................................................................................... 10

1 Test Points.................................................................................................................... 4

2 TPSM846C23DEVM-807 Bill of Material ................................................................................. 8

Trademarks

PMBus is a trademark of SMIF, Incorporated. All other trademarks are the property of their respective owners.

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List of Tables

Operating TPSM846C23 in Parallel

Description

1 Description

The TPSM846C23 is a PMBus™ enabled, synchronous buck power module designed to provide up to 35 A of output current. The TPSM846C23 can be paralleled with two devices to achieve output current up to 70 A. The TPSM846C23 is a highly-integrated, PMBus-enabled DC-DC power module that combines a 35-A DC/DC converter with power MOSFETs, a shielded inductor, some input and output capacitors, and passives into a low profile package. The input voltage range is 4.5 V to 15 V. The output voltage range is

0.35 V to 2 V. The PMBus interface provides for converter configuration as well as monitoring of key parameters including output voltage, output current, and the internal die temperature, as well as many user-programmable configuration options.

This evaluation module is designed to demonstrate the ease-of-use and small printed-circuit-board area that may be achieved when paralleling two TPSM846C23 power modules. Monitoring test points are provided to allow measurement of efficiency, power dissipation, input ripple, output ripple, line and load regulation, and transient response. Additionally, control test points are provided for use of the power good, and synchronization features of the device. The EVM uses a recommended PCB layout that maximizes thermal performance and minimizes output ripple and noise.

2 Getting Started

Figure 1 highlights the user interface items associated with the EVM. The polarized input power terminal

block (TB1) is used for connection to the host input supply. TB2 and TB3 allow 4 terminals for VOUT and TB4 and TB5 allow 4 terminals for PGND for connection to the load. These terminal blocks can except up to 12 AWG wire.

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Figure 1. EVM User Interface

The VIN Monitor (VIN and PGND) and VOUT Monitor (VS+ and VS–) test points located near the input terminal block and the output terminal blocks are intended to be used as voltage monitoring points where voltmeters can be connected to measure the input and output voltages. Do not use these VIN and VOUT monitoring test points as the input supply or output load connection points. The PCB traces connecting to these test points are not designed to support high currents.

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The VIN Scope (J1) and VOUT Scope (J2) test points can be used to monitor VIN and VOUT waveforms with an oscilloscope. These test points are intended for use with un-hooded scope probes outfitted with a low-inductance ground lead (ground spring) mounted to the scope probe barrel. The two sockets of each test point are on 0.1 inch centers. The scope probe tip should be inserted into the socket labeled VIN or VOUT, and the scope probe ground lead should be inserted into the hole of the socket labeled PGND.

The test points located directly below the device are made available to test the features of the device. Any external connections made to these test points should be referenced to one of the AGND test points located along the bottom of the EVM. Refer to the Test Point Descriptions section of this guide for more information on the individual control test points.

The PMBus connector (P1) is provided to connect the USB-to-GPIO interface pod to the EVM. The USBto-GPIO interface pod connects the EVM to a computer USB port which allows the TI “Fusion” Graphical User Interface (GUI) to communicate and control the EVM. To download the latest software visit,

http://www.ti.com/tool/fusion_digital_power_designer.

The ALERT, DATA, CLK, and CNTL test points are used to monitor and control the module via PMBus. Reference the TPS546C23 PG1.0 Supported PMBus Commands document for details on the supported PMBus commands.

The Vout Gain jumper (P4) is used to set the output voltage. Select X1 for an output voltage between

0.35 V–1.65 V and select X2 for output voltages between 0.70 V–2 V. The default loading is the X1 position.

The Comp Select jumper (P2) sets the proper frequency compensation for the total amount of output capacitance present on the V capacitance loaded on the board. Locations are provided on the board to add another 2000 µF of output capacitance (C28–C31). The default jumper load is the 2000 µF position.

When two TPSM846C23 devices are paralleled, the SYNC pins of the Master and the Slave must be supplied with a 50% duty cycle external clock signal at the desired switching frequency. A 500-kHz clock is present on the EVM which supplies the required 50% duty cycle signal. The Master device (U1) locks to the rising edge of the clock and the Slave device (U2) locks to the falling edge of the clock.

Resistors R5, R6, R7, and R8 set the PMBus address for the modules. The master module PMBus address is 54 decimal (36 hex) and the slave address is 52 decimal (34 hex).

bus. The EVM is shipped with approximately 2000 µF of output

OUT

Getting Started

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Test Point Descriptions

3 Test Point Descriptions

Wire-loop test points and scope probe test points are provided as convenient connection points for digital voltmeters (DVM) or oscilloscope probes to aid in the evaluation of the device. A description of each test point follows:

VIN Input voltage monitor. Connect DVM to this point for measuring efficiency. VS+ Supply path output voltage monitor. Connect DVM positive lead to this point for line regulation and load

regulation.

VS– Return path output voltage monitor. Connect DVM negative lead to this point for measuring line regulation

and load regulation. VOUT Output voltage monitor. Connect DVM to this point and PGND for measuring efficiency. PGND Input and output voltage monitor grounds. Reference the VIN and VOUT DVMs to these ground points. VIN MON (J1) Input voltage scope monitor. Connect an oscilloscope to this set of points to measure input ripple voltage. VOUT MON (J2) Output voltage scope monitor. Connect an oscilloscope to this set of points to measure output ripple voltage

and transient response. AGND Analog ground point. Use any of the AGND test points as the ground reference for the control signals. ALERT PMBus ALERT line, used to monitor the ALERT signal. CLK PMBus CLK line, used to monitor the CLK signal. DATA PMBus DATA line, used to monitor the DATA signal. CNTL Control pin. Pull to AGND to stop power conversion. Float or pull to 3.3 V to enable power conversion. An

internal 10-kΩ pullup resistor to 3.3 V is present on the EVM. EXT CLK External clock input. This is the input to a D flip-flop. Apply an external clock at a frequency that is twice the

required switching frequency. Remove R13 before applying the clock signal. SYNC SYNC monitor pin. This pin is the output of a D flip-flop which supplies a clock to both devices. PGOOD Monitors the power good signal of the device. This is an open drain signal that has an on-board 10-kΩ pullup

resistor the 3.3 V. DIFFO Output of remote sense differential amplifier. Signal Signal injection point for Bode plot analyzer. Inject from Signal to CHB. CHA Input signal monitoring point for Bode plot analyzer. CHB Output signal monitoring point for Bode plot analyzer. PH1 Switch node of the TPSM846C23 Master device (U1). Use an unshielded scope probe to monitor this point. PH2 Switch node of the TPSM846C23 Slave device (U2). Use an unshielded scope probe to monitor this point.

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Table 1. Test Points

NOTE: Refer to the product data sheet (SLVSDF3) for absolute maximum ratings associated with

features in Table 1.

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4 Operation Notes

In order to operate the EVM, apply a valid input voltage of 4.5 V to 15 V. The undervoltage lock-out (UVLO) can be programmed the PMBus commands.

The output voltage is set at the factory to 0.6 V. It can be programmed over the allowable V using the PMBus VOUT_COMMAND.

The Power Good (PGOOD) indicator of the EVM will assert high when the output voltage is within ±5% of the programmed output voltage value. A 10-kΩ pull-up resistor (R18) is populated between the PGOOD pin and the 3V3 pin.

The TPSM846C23DEVM-807 is set-up to operate at 500 kHz. A clock circuit is present on the bottom of the EVM. The clock circuit produces a 500 kHz, 50% duty cycle clock that feeds both devices. If another switching frequency is required, R23 must be removed from the clock circuit on the bottom of the EVM and an external clock must be connected to the EXT CLK test point. The external clock applied to EXT CLK test point must be 2× the required frequency. The device can be synchronized to an external clock over the frequency range of 300 kHz to 1 MHz. Refer to the product data sheet for further information on synchronization.

The TPSM846C23DEVM-807 includes both input and output capacitors. The EVM includes footprints for adding additional input and output capacitors to the EVM. Adding additional capacitance will improve transient response. The actual capacitance required will depend on the input and output voltage conditions of the particular application, along with the desired transient response. Refer to the product data sheet for further information on input and output capacitance and transient response.

This EVM is designed to be used with the USB-to-GPIO pod which enables communication over the PMBus.

Jumper settings should not be changed while the module is powered. Permanent damage may occur.

Operation Notes

range by

OUT

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Output Current (A)

Output Voltage Ripple (mV)

0 10 20 30 40 50 60 70

D003

1.8 V

1.2 V

0.8 V

Output Current (A)

Efficiency (%)

0 10 20 30 40 50 60 70

100

D001

1.8 V

1.2 V

0.8 V

Output Current (A)

Power Dissipation (W)

0 10 20 30 40 50 60 70

D002

1.8 V

1.2 V

0.8 V

Performance Data

5 Performance Data

VIN= 12 V, Fsw= 500 kHz, C

Figure 2. Efficiency Figure 3. Power Dissipation

= 4× 47-µF ceramic plus 4× 470 µF polymer

OUT

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Operating TPSM846C23 in Parallel

Figure 4. Output Voltage Ripple

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VIN

PGND

VS+

VOUT

PGND

PVIN

USB

0.01µF

TP9

1 2

10.0k

R18

AGND

330µF

470µF

C25

PGND

VOUT

VIN

AGND

4.7µF

C11

1µF

C15

PGND

49.9

330µF

0.01µF

47µF

C21

47µF

C22

470µF

C26

470µF

C27

470µF

C28

TP1

TP15 TP16

TP17

0.1µF

C12

4.99k

R17

0.01µF

C16

2.2µF

C17

10.0k

R16

TP6

TP5

TP7

10.0k

R15

AGND

USB

Power

Interface

121k

PGND

2000uF 4000uF

10.0k

R20

TP19

665

R13

1500pF

C33

499

R14

2200pF

C34

AGND

x1 x2

TP13

6V5M

VINBP

3V3M

VIN_RTN

RT_SEL

AGND

PGND

VSHARE

PGOOD

SYNC

DATA

CLK

ALERT

CNTL

ADDR1

ADDR0

Signal CHA

CHB

VIN

VOUT

VS-

DIFFO

Comp Sel

Vout Gain

PGood

Data

Alert

Clk

TP23TP22TP21

VS+

VS-

1 2 3 4

TB1

Green

TP8

Cntl

Alert

Data

Clk

Cntl

Ishare

Data

Clk

Alert

Cntl

Sync

TB3

TB4

TP10

TP11

GND

PGND

TP4 PH2

PH1

TP3

4.7µF

C13

0.1µF

C14

PGND

1µF

C18

0.01µF

C19

2.2µF

C20

3V3S

VIN_RTN_S

PGND

0.01µF

1 2 3 4

Data

Clk

Alert

Cntl

Sync

Vshare

Ishare

AGND

PGND

AGND

121kR751.1k

AGND

10.0

R11

10.0

R12

3V3

PGND

0.01µF

C10

1.00k

R22

49.9

R10

5.11k

R21

PGND

ISHARE

VSHARE

RT_RTN

DNC

COMP

SYNC

CNTL

VS-

BP_RTN

PGOOD

DATA

CLK

ALERT

DNC

PGND

VOUT

PGND

VIN

ADDR0

PGND

VIN

DIFFO

VS+

PGND

VIN

AGND

BP6_RTN

PGND

BP3

BP6

VINBP

ADDR1

TPSM846C23MOL

ISHARE

VSHARE

RT_RTN

DNC

COMP

SYNC

CNTL

VS-

BP_RTN

PGOOD

DATA

CLK

ALERT

DNC

PGND

VOUT

PGND

VIN

ADDR0

PGND

VIN

DIFFO

VS+

PGND

VIN

AGND

BP6_RTN

PGND

BP3

BP6

VINBP

ADDR1

TPSM846C23MOL

PGND

TB2

TB5

3V3

VIN 3V3

0.01µF

C35

PGND

1µF

C36

CLK

VCC

GND

SN74LVC1G80DCKR

3V3

PGND

SYNC

TP12

V+1CLOCK

GND

MAX7375AXR105-T

PGND

49.9

R23

1MHz Oscillator

PGND

PH1 PH2

Vshare

VOUT

PGND

47µF

C23

47µF

C24

22µF

6V5S

VINBPS

5.11k

R19

ISHARE

470µF

C29

470µF

C30

470µF

C31

470µF

C32

1 2 3 4 5 6 7 8 9 10

AWHW-10G-0202-T

TP2

NT1

Net-Tie

NT2

Net-Tie

TP14

TP18 TP20

TP24

OUT

GND

U3A

TPS715A33DRVR

39.2k

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6 Schematic

Figure 5 illustrates the TPSM846C23DEVM-807 schematic.

Schematic

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Figure 5. TPSM846C23DEVM-807 Schematic

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Bill of Material

7 Bill of Material

Table 2 lists the TPSM846C23DEVM-807 BOM.

Designator Quantity Description Part Number Manufacturer

PCB 1 Printed Circuit Board - Any U1, U2 2 TPSM846C23 TPSM846C23MOL Texas Instruments C1, C2 2 CAP, AL, 330 µF, 25 V, +/- 20%, 0.053 ohm, TH 25ZL330MEFC10X12.5 Rubycon

C3, C4, C7, C8 4 CAP, CERM, 22 µF, 25 V, +/- 10%, X5R, 1210 GRM32ER61E226KE15L Murata

C5, C6, C9, C10,

C16, C19, C35

C11, C13 2 CAP, CERM, 4.7 µF, 16 V, +/- 10%, X5R, 0805 GRM21BR61C475KA88L Murata C12, C14 2 CAP, CERM, 0.1 µF, 16 V, +/- 10%, X7R, 0603 GRM188R71C104KA01D Murata C15, C18 2 CAP, CERM, 1 µF, 25 V, +/- 10%, X7R, 0805 GRM21BR71E105KA99L Murata C17, C20 2 CAP, CERM, 2.2 µF, 16 V, +/- 10%, X7R, 0805 GRM21BR71C225KA12L Murata

C21, C22, C23, C24 4 CAP, CERM, 47 µF, 6.3 V, +/- 20%, X5R, 1210 GRM32ER60J476ME20L Murata C27, C28, C31, C32 4

C33 1 CAP,CERM, 1500 pF, 50 V, +/- 10%, X7R, 0402 GRM155R71H152KA01D Murata C34 1 CAP,CERM, 2200 pF, 50 V, +/- 10%, X7R, 0402 GCM155R71H222KA37D Murata C36 1 CAP, CERM, 1 µF, 16 V, +/- 10%, X7R, 0603 GRM188R71C105KA12D Murata

C25, C26, C29, C30 0

D1 1 LED,Green, SMD 150060GS75000 Wurth Elektronik

J1, J2 2 Socket Strip, 2x1, 100mil, Black, Tin, TH 310-43-102-41-001000 Mill-Max

P1 1 Header, 2.54mm, 5×2, Gold, TH AWHW-10G-0202-T Assmann WSW P2, P4 2 Header, 100mil, 2×2, Tin, TH PEC02DAAN Sullins Connector Solutions R1, R3 2 RES, 0, 5%, 0.063 W, 0402 CRCW04020000Z0ED Vishay-Dale

R5, R6, R7 3 RES, 121 k, 1%, 0.063 W, 0402 CRCW0402121KFKED Vishay-Dale

R8 1 RES, 51.1 k, 1%, 0.063 W, 0402 CRCW040251K1FKED Vishay-Dale

R9, R10, R23 3 RES, 49.9, 1%, 0.1 W, 0603 CRCW060349R9FKEA Vishay-Dale

R11, R12 2 RES, 10.0, 1%, 0.1 W, 0603 CRCW060310R0FKEA Vishay-Dale

R13 1 RES, 665, 1%, 0.063 W, 0402 CRCW0402665RFKED Vishay-Dale R14 1 RES, 499, 1%, 0.063 W, 0402 CRCW0402499RFKED Vishay-Dale

R15, R16, R18, R20 4 RES, 10.0 k, 1%, 0.063 W, 0402 CRCW040210K0FKED Vishay-Dale

R17 1 RES, 4.99 k, 1%, 0.063 W, 0402 CRCW04024K99FKED Vishay-Dale

R19, R21 2 RES, 5.11 k, 1%, 0.063 W, 0402 CRCW04025K11FKED Vishay-Dale

R22 1 RES, 1.00 k, 1%, 0.063 W, 0402 CRCW04021K00FKED Vishay-Dale

R2, R4 0 RES, 39.2 k, 1%, 0.063 W, 0402 CRCW040239K2FKED Vishay-Dale

TB1, TB2, TB3, TB4,

TB5

TP1, TP5, TP6, TP7,

TP8, TP9, TP10,

TP12, TP15, TP16,

TP17, TP19, R24

TP2, TP11, TP13,

TP18, TP20, TP21,

TP22, TP23

TP14 1 Test Point, Multipurpose, Red, TH 5010 Keystone

TP3, TP4 0 Test Point, Multipurpose, White, TH 5012 Keystone

U3 1

U4 1 1MHz CMOS Silicon Oscillator, SOT-323 MAX7375AXR105-T Maxim

U5 1 Single Positive-Edge-Triggered D-Type Flip-Flop, (SOT-5) SN74LVC1G80DCKR Texas Instruments

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Table 2. TPSM846C23DEVM-807 Bill of Material

7 CAP, CERM, 0.01 µF, 50 V, +/- 10%, X7R, 0603 GRM188R71H103KA01D Murata

CAP, Tantalum Polymer, 470 µF, 6.3 V, +/- 20%, 0.01

5 Terminal Block, 30A, 9.52mm (.375) Pitch, 2-Pos, TH OSTT7022150 On-Shore Technology

13 Test Point, Multipurpose, White, TH 5012 Keystone

8 Test Point, Multipurpose, Black, TH 5011 Keystone

Single Output LDO, 80 mA, Fixed 3.3 V Output, 2.5 to 24

ohm, 7343-40 SMD

V Input, 6-pin SON (DRV)

6TPF470MAH Panasonic

TPS715A33DRVR Texas Instruments

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8 PCB Layout

Figure 6 through Figure 13 illustrate the EVM PCB layout images.

PCB Layout

Figure 6. Top Components Figure 7. Topside Copper

Figure 8. Layer 2 Copper

Figure 9. Layer 3 Copper

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PCB Layout

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Figure 10. Layer 4 Copper

Figure 12. Bottom-Side Copper

Figure 11. Layer 5 Copper

Figure 13. Bottom Components

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Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from B Revision (December 2017) to C Revision ........................................................................................... Page

• Corrected resistor references R18 and R23........................................................................................... 5

Changes from A Revision (July 2017) to B Revision ..................................................................................................... Page

• Replaced Figure 6 through Figure 13................................................................................................... 9

Changes from Original (May 2017) to A Revision ........................................................................................................... Page

• Changed the link to the digital power designer tool................................................................................... 3

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Revision History

STANDARD TERMS FOR EVALUATION MODULES

1. Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein. User's acceptance of the EVM is expressly subject to the following terms.

1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions set forth herein but rather shall be subject to the applicable terms that accompany such Software

1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned, or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production system.

2 Limited Warranty and Related Remedies/Disclaimers:

2.1 These terms do not apply to Software. The warranty, if any, for Software is covered in the applicable Software License Agreement.

2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM to User. Notwithstanding the foregoing, TI shall not be liable for a nonconforming EVM if (a) the nonconformity was caused by neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have been altered or modified in any way by an entity 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 in the EVMs within ten (10) business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected.

2.3 TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty set forth above, or credit User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during 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 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.

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 to follow the 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 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 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.

【無線電波を送信する製品の開発キットをお使いになる際の注意事項】開発キットの中には技術基準適合証明を受けていないものがあります。技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの措置を取っていただく必要がありますのでご注意ください。

1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用いただく。

2. 実験局の免許を取得後ご使用いただく。

3. 技術基準適合証明を取得後ご使用いただく。

なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。

上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。日本テキサス・インスツルメンツ株式会社東京都新宿区西新宿６丁目２４番１号西新宿三井ビル

3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page

電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧ください。http:/

/www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page

3.4 European Union

3.4.1 For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive): This is a class A product intended for use in environments other than domestic environments that are connected to a

low-voltage power-supply network that supplies buildings used for domestic purposes. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

4 EVM Use Restrictions and Warnings:

4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.

4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information related to, for example, temperatures and voltages.

4.3 Safety-Related Warnings and Restrictions:

4.3.1 User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or property damage. If there are questions concerning performance ratings and specifications, User should contact a TI field representative prior to connecting interface electronics including input power and intended loads. Any loads applied outside of the specified output range may also result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or interface electronics. Please consult the EVM user guide prior to 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, current sense resistors, and heat sinks, which can be identified using the information in the associated documentation. When working with the EVM, please be aware that the EVM may become very warm.

4.3.2 EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components, systems, and subsystems. User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees, affiliates, contractors or designees. User assumes all responsibility and liability to ensure that 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 responsibility and liability to determine whether the EVM is subject to any applicable international, federal, state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local requirements.

5. Accuracy of Information: To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as accurate, complete, reliable, current, or error-free.

6. Disclaimers:

6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY MATERIALS PROVIDED WITH THE EVM (INCLUDING, BUT NOT LIMITED TO, REFERENCE DESIGNS AND THE DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL FAULTS." TI DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT NOT LIMITED TO ANY EPIDEMIC FAILURE WARRANTY OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADE SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS.

6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS SHALL BE CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY OTHER INDUSTRIAL OR INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD PARTY, TO USE THE EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY INVENTION, DISCOVERY OR IMPROVEMENT, REGARDLESS OF WHEN MADE, CONCEIVED OR ACQUIRED.

7. USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS. USER WILL DEFEND, INDEMNIFY AND HOLD TI, ITS LICENSORS AND THEIR REPRESENTATIVES HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, DAMAGES, LOSSES, EXPENSES, COSTS AND LIABILITIES (COLLECTIVELY, "CLAIMS") ARISING OUT OF OR IN CONNECTION WITH ANY HANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS. THIS OBLIGATION SHALL APPLY WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANY OTHER LEGAL THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED.

8. Limitations on Damages and Liability:

8.1 General Limitations. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE, INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE TERMS OR THE USE OF THE EVMS , REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED TO, COST OF 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 TWELVE (12) MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS OCCURRED.

8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY USE OF AN EVM PROVIDED HEREUNDER, INCLUDING FROM ANY WARRANTY, INDEMITY OR OTHER OBLIGATION ARISING OUT OF OR IN CONNECTION WITH THESE TERMS, , EXCEED THE TOTAL AMOUNT PAID TO TI BY USER FOR THE PARTICULAR EVM(S) AT ISSUE DURING THE PRIOR TWELVE (12) MONTHS WITH RESPECT TO WHICH LOSSES 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 been incorrectly charged for the EVM(s) it ordered or that delivery violates the applicable order, User should contact TI. All refunds will be made in full within thirty (30) working days from the return of the components(s), excluding any postage or packaging costs.

10. Governing Law: These terms and conditions shall be governed by and interpreted in accordance with the laws of the State of Texas, without reference to conflict-of-laws principles. User agrees that non-exclusive jurisdiction for any dispute arising out of or relating to these terms and conditions lies within courts located in the State of Texas and consents to venue in Dallas County, Texas. Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court.

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

IMPORTANT NOTICE FOR TI DESIGN INFORMATION AND RESOURCES

Texas Instruments Incorporated (‘TI”) technical, application or other design advice, services or information, including, but not limited to, reference designs and materials relating to evaluation modules, (collectively, “TI Resources”) are intended to assist designers who are developing applications that incorporate TI products; by downloading, accessing or using any particular TI Resource in any way, you (individually or, if you are acting on behalf of a company, your company) agree to use it solely for this purpose and subject to the terms of this Notice.

TI’s provision of TI Resources does not expand or otherwise alter TI’s applicable published warranties or warranty disclaimers for TI products, and no additional obligations or liabilities arise from TI providing such TI Resources. TI reserves the right to make corrections, enhancements, improvements and other changes to its TI Resources.

You understand and agree that you remain responsible for using your independent analysis, evaluation and judgment in designing your applications and that you have full and exclusive responsibility to assure the safety of your applications and compliance of your applications (and of all TI products used in or for your applications) with all applicable regulations, laws and other applicable requirements. You represent that, with respect to your applications, you have all the necessary expertise to create and implement safeguards that (1) anticipate dangerous consequences of failures, (2) monitor failures and their consequences, and (3) lessen the likelihood of failures that might cause harm and take appropriate actions. You agree that prior to using or distributing any applications that include TI products, you will thoroughly test such applications and the functionality of such TI products as used in such applications. TI has not conducted any testing other than that specifically described in the published documentation for a particular TI Resource.

You are authorized to use, copy and modify any individual TI Resource only in connection with the development of applications that include the TI product(s) identified in such TI Resource. NO OTHER LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT, AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD PARTY IS GRANTED HEREIN, including but not limited to any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information regarding or referencing third-party products or services does not constitute a license to use such products or services, or a warranty or endorsement thereof. Use of TI Resources may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI.

TI RESOURCES ARE PROVIDED “AS IS” AND WITH ALL FAULTS. TI DISCLAIMS ALL OTHER WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED, REGARDING TI RESOURCES OR USE THEREOF, INCLUDING BUT NOT LIMITED TO ACCURACY OR COMPLETENESS, TITLE, ANY EPIDEMIC FAILURE WARRANTY AND ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHTS.

TI SHALL NOT BE LIABLE FOR AND SHALL NOT DEFEND OR INDEMNIFY YOU AGAINST ANY CLAIM, INCLUDING BUT NOT LIMITED TO ANY INFRINGEMENT CLAIM THAT RELATES TO OR IS BASED ON ANY COMBINATION OF PRODUCTS EVEN IF DESCRIBED IN TI RESOURCES OR OTHERWISE. IN NO EVENT SHALL TI BE LIABLE FOR ANY ACTUAL, DIRECT, SPECIAL, COLLATERAL, INDIRECT, PUNITIVE, INCIDENTAL, CONSEQUENTIAL OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF TI RESOURCES OR USE THEREOF, AND REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

You agree to fully indemnify TI and its representatives against any damages, costs, losses, and/or liabilities arising out of your noncompliance with the terms and provisions of this Notice.

This Notice applies to TI Resources. Additional terms apply to the use and purchase of certain types of materials, TI products and services. These include; without limitation, TI’s standard terms for semiconductor products http://www.ti.com/sc/docs/stdterms.htm), evaluation

modules, and samples (http://www.ti.com/sc/docs/sampterms.htm).

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

Texas Instruments TPSM846C23, TPSM846C23DEVM-807 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Operating TPSM846C23 in Parallel

1 Description

2 Getting Started

3 Test Point Descriptions

4 Operation Notes

5 Performance Data

6 Schematic

7 Bill of Material

8 PCB Layout

Revision History