Texas Instruments TPS552892EVM-111 User manual

User’s Guide
TPS552892EVM-111 EVM User's Guide
ABSTRACT
This user's guide describes the characteristics, operation, and the use of the TPS552892EVM-111 evaluation
module (EVM). The EVM contains the TPS552892 device, which is a high-performance, high-efficiency
synchronous buck-boost converter which integrates four MOSFETs. The user's guide includes EVM
specifications, recommended test setup, test result, schematic diagram, bill of materials, and the board layout.
Table of Contents
1 Introduction.............................................................................................................................................................................2
1.1 Performance Specification................................................................................................................................................. 2
1.2 Modification........................................................................................................................................................................ 2
2 Connector, Test Point and Jumper Descriptions.................................................................................................................2
2.1 Connector and Test Point Descriptions.............................................................................................................................. 2
2.2 Jumper Configuration.........................................................................................................................................................2
3 Test Procedure........................................................................................................................................................................3
4 Schematic, Bill of Materials, and Board Layout...................................................................................................................4
4.1 Schematic.......................................................................................................................................................................... 4
4.2 Bill of Materials...................................................................................................................................................................5
4.3 Board Layout......................................................................................................................................................................7
List of Figures
Figure 4-1. TPS552892EVM-111 Schematic............................................................................................................................... 4
Figure 4-2. TPS552892EVM-111 Top-Side Layout...................................................................................................................... 7
Figure 4-3. TPS552892EVM-111 Inner Layer1............................................................................................................................8
Figure 4-4. TPS552892EVM-111 Inner Layer2............................................................................................................................8
Figure 4-5. TPS552892EVM-111 Bottom-Side Layout................................................................................................................ 9
List of Tables
Table 1-1. Performance Specification Summary..........................................................................................................................2
Table 2-1. Connectors and Test Points........................................................................................................................................ 2
Table 4-1. Bill of Materials............................................................................................................................................................5
Trademarks
All trademarks are the property of their respective owners.
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1 Introduction
1.1 Performance Specification
Table 1-1 provides a summary of the TPS552892 EVM performance specifications. All specifications are given
for an ambient temperature of 25°C.
Table 1-1. Performance Specification Summary
Parameter Test Condition Value Unit
Input Voltage N/A 3 - 36 V
Output Voltage N/A 12 V
Maximum Output Current
VIN ≥ 6 V 3
AVIN ≥ 9V 4
VIN ≥ 12V 5
Default Switching Frequency N/A 400 KHz
1.2 Modification
The printed-circuit board (PCB) for this EVM is designed to accommodate some modifications by the user. The
external component can be changed according to the real application.
2 Connector, Test Point and Jumper Descriptions
This section describes how to properly connect, set up, and use the TPS552882EVM-400kHz.
2.1 Connector and Test Point Descriptions
This EVM includes I/O connectors and test points as shown in Table 2-1. The power supply must be connected
to input connectors, J1 and J2. The load must be connected to output connectors, J3 and J4.
Table 2-1. Connectors and Test Points
Reference
Designator
Description
J1 Input voltage positive connection
J2 Input voltage return connection
J3 Output voltage connection
J4 Output voltage return connection
2.2 Jumper Configuration
2.2.1 JP1 (ENABLE)
The JP1 jumper enables the device. By default, this jumper is set to the ON position. Put this jumper in the OFF
position to disable the output.
2.2.2 JP5(SYNC)
The JP5 jumper is for the frequency dithering selection. Placing a jumper across JP5 disables the frequency
dithering function. Left JP5 opens when using frequency dithering function.
2.2.3 JP6 (MODE)
MODE pin input jumper. Place a jumper across MODE and VCC to set in forced PWM mode, place a jumper
across MODE and GND to set in auto PFM mode.
2.2.4 JP7 (EXTVCC)
EXTVCC pin input jumper. Place a jumper across EXTVCC and VCC to select internal LDO. To minimize the
power dissipation of the internal LDO when both input voltage and output voltage are high, an external 5-V
power source can be applied at the VCC pin (JP4) to supply the TPS55289 and place a jumper across EXTVCC
and GND .
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3 Test Procedure
Use the following steps for the test procedure:
1. Set the power supply current limit to 10 A. Set the power supply to something around 12 V. Turn off the
power supply. Connect the positive output of the power supply to J1 and the negative output to J2.
2. Connect the load to J3 for the positive connection and J4 for the negative connection.
3. Turn on the power supply.
4. Slowly increase the load while monitoring the output voltage between J3 and J4. It must remain in regulation
when the load current is lower than 4 A.
5. Slowly sweep the input voltage from 9 V to 20 V. The output voltage must remain in regulation when the load
current is lower than the maximum load current specified in Table 2-1.
6. Turn off the load, turn off the power supply. Then turn on the load to discharge the output capacitors.
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4 Schematic, Bill of Materials, and Board Layout
This section provides the TPS552892EVM-111 schematic, bill of materials (BOM), and board layout.
4.1 Schematic
Figure 4-1 shows the EVM schematic.
4.7uH
L1
C3
68uF C6
1µF
C4
10µF
C5
10µF 0.1uF
C7
C9
0.1µF
C11
0.1µF
C10
4.7µF
4700pF
C25
100pF
C24
49.9k
R10C23
0.01uF
C18
10µF
0.1uF
C14 C16
10µF
C17
10µF
10m
R4
J1
J2
TP1
TP2
3 - 36V
J3
J4
C20
1µF
TP3
TP4
0.8-20V
TP5 TP6
R1
2.20
R2
2.20
GND
VOUT
0.1uF
C22
1
2
3
JP1
R5
115k
VIN
VIN
VCC
AGND
AGND
AGND
1
2
SYNC
JP5
AGND
SYNC
AGND
11.3k
R15
102k
R12
49.9
R6
TP7
AGND
High
Low
EN
1
2
JP4
GND
GND GND
GND
GND
0.1uF
C8
0.1uF
C13 C15
1µF
147k
R3
GND
AGND
AGND
VCC
1
2
3
JP7
AGND
AGND
EXTVCC
VCC
1
2
3
JP6
AGND
MODE
VCC
0.1uF
C12
AGND
0.1uF
C26
AGND
10.0
R7
R9
10.0
MODE
SYNC
0.1uF
C21
VCC
EXTVCC
AGND
MODE
VCC
AGND
VCC_EXT
GND
21 EXTVCC
18 VCC
7VIN
8
SW1
SW2 10
20
BOOT1
19
BOOT2
CC
4
CDC
16
15
COMP
5DITH/SYNC
1EN/UVLO
FB 14
6FSW
13
ISN
12
ISP
2MODE
PG
3
11
VOUT
17
AGND 9
PGND
U1
TPS552892RYQR
150k
R11
CDC
EN
VCC
EXTVCC
BOOT1
SW1
SW2
BOOT2
ISP
FB
COMP
ISN
FSW
PG
102k
R13
102k
R14
VCC
1
2
JP2
1
2
JP3
AGND
AGND
100uF
C19
C1
2.2nF 2.2nF
C2
CC
PG
CC
15.0k
R8
C27
0.01uF
C28
0.01uF
Figure 4-1. TPS552892EVM-111 Schematic
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4.2 Bill of Materials
Table 4-1 lists the EVM bill of materials.
Table 4-1. Bill of Materials
Designator Quant
ity
Value Description PackageRefere
nce
PartNumber Manufacturer
C3 1 68uF CAP, Polymer Hybrid, 68 uF, 50 V, +/- 20%, 30 ohm, 8x10 SMD 8x10 EEHZA1H680P Panasonic
C4, C5, C16,
C17, C18
5 10uF CAP, CERM, 10 µF, 50 V,+/- 10%, X7R, AEC-Q200 Grade 1, 1206 1206 CGA5L1X7R1H106K160AC TDK
C6, C15, C20 3 1uF CAP, CERM, 1 µF, 50 V,+/- 20%, X5R, AEC-Q200 Grade 3, 0603 0603 GRT188R61H105ME13D MuRata
C7, C8, C13,
C14
4 0.1uF CAP, CERM, 0.1 uF, 50 V, +/- 20%, X7R, 0402 0402 GRM155R71H104ME14D MuRata
C9, C11 2 0.1µF ±10% 50V Ceramic Capacitor X8L 0603 (1608 Metric) 0603 GCM188L81H104KA57D Murata Electronics
North America
C10 1 4.7uF CAP, CERM, 4.7 µF, 16 V,+/- 10%, X5R, AEC-Q200 Grade 3, 0603 0603 GRT188R61C475KE13D MuRata
C12, C21, C22,
C26
4 0.1uF CAP, CERM, 0.1 uF, 50 V, +/- 10%, X7R, AEC-Q200 Grade 1, 0402 0402 CGA2B3X7R1H104K050BB TDK
C19 1 100uF CAP, AL, 100 uF, 35 V, AEC-Q200 Grade 2, SMD D6.3xL5.8mm EEHZK1V101XP Panasonic
C23, C27, C28 3 0.01uF CAP, CERM, 0.01 uF, 50 V, +/- 10%, X7R, AEC-Q200 Grade 1, 0402 0402 CGA2B3X7R1H103K050BB TDK
C24 1 100pF CAP, CERM, 100 pF, 50 V, +/- 5%, C0G/NP0, AEC-Q200 Grade 1, 0402 0402 CGA2B2C0G1H101J050BA TDK
C25 1 4700pF CAP, CERM, 4700 pF, 50 V, +/- 10%, X7R, AEC-Q200 Grade 1, 0402 0402 CGA2B2X7R1H472K050BA TDK
FID4, FID5,
FID6
3 Fiducial mark. There is nothing to buy or mount. N/A N/A N/A
J1, J2, J3, J4 4 Terminal, Turret, TH, Double Keystone1502-
2
1502-2 Keystone
JP1, JP6, JP7 3 Header, 2.54 mm, 3x1, Gold, TH Header,
2.54mm, 3x1,
TH
61300311121 Wurth Elektronik
JP2, JP3, JP4,
JP5
4 Header, 2.54 mm, 2x1, Gold, TH Header,
2.54mm, 2x1,
TH
61300211121 Wurth Elektronik
L1 1 4.7uH Inductor, Shielded, Composite, 4.7 uH, 13.6 A, 0.01 ohm, SMD 7.2x7x7.5mm XAL7070-472MEB Coilcraft
R3 1 147k RES, 147 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW0402147KFKED Vishay-Dale
R4 1 10 mOhms ±1% 1W Chip Resistor 1206 (3216 Metric) Automotive AEC-Q200,
Current Sense, Moisture Resistant Metal Element
1206 CRF1206-FZ-R010ELF Bourns
R5 1 115k RES, 115 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW0402115KFKED Vishay-Dale
R6 1 49.9 RES, 49.9, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW040249R9FKED Vishay-Dale
R7, R9 2 10 RES, 10.0, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW040210R0FKED Vishay-Dale
R8 1 15.0k RES, 15.0 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW040215K0FKED Vishay-Dale
R10 1 49.9k RES, 49.9 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW040249K9FKED Vishay-Dale
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Table 4-1. Bill of Materials (continued)
Designator Quant
ity
Value Description PackageRefere
nce
PartNumber Manufacturer
R11 1 150k RES, 150 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW0402150KFKED Vishay-Dale
R12, R13, R14 3 102k RES, 102 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW0402102KFKED Vishay-Dale
R15 1 11.3k RES, 11.3 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW040211K3FKED Vishay-Dale
SH-JP1, SH-
JP2, SH-JP3,
SH-JP4
4 Shunt, 100mil, Gold plated, Black Shunt 2 pos.
100 mil
881545-2 TE Connectivity
TP1, TP2, TP3,
TP4, TP5, TP6,
TP7
7 Test Point, Miniature, Orange, TH Orange
Miniature
Testpoint
5003 Keystone
Electronics
U1 1 36-V, 8-A Buck-boost Converter VQFN21 +125C VQFN21 TPS552892RYQR Texas Instruments
C1, C2 0 2200pF CAP, CERM, 2200 pF, 250 V, +/- 10%, X7R, 0805 0805 GRM21AR72E222KW01D MuRata
FID1, FID2,
FID3
0 Fiducial mark. There is nothing to buy or mount. N/A N/A N/A
R1, R2 0 2.2 RES, 2.20, 1%, 0.25 W, AEC-Q200 Grade 0, 1206 1206 ERJ-8RQF2R2V Panasonic
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4.3 Board Layout
Figure 4-2 through Figure 4-5 illustrate the EVM board layouts.
Figure 4-2. TPS552892EVM-111 Top-Side Layout
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Figure 4-3. TPS552892EVM-111 Inner Layer1
Figure 4-4. TPS552892EVM-111 Inner Layer2
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Figure 4-5. TPS552892EVM-111 Bottom-Side Layout
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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.
2Limited 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.
WARNING
Evaluation Kits 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 shall operate the Evaluation Kit within TI’s recommended
guidelines and any applicable legal or environmental requirements
as well as reasonable and customary safeguards. Failure to set up
and/or operate the Evaluation Kit within TI’s recommended
guidelines may result in personal injury or death or property
damage. Proper set up entails following TI’s instructions for
electrical ratings of interface circuits such as input, output and
electrical loads.
NOTE:
EXPOSURE TO ELECTROSTATIC DISCHARGE (ESD) MAY CAUSE DEGREDATION OR FAILURE OF THE EVALUATION
KIT; TI RECOMMENDS STORAGE OF THE EVALUATION KIT IN A PROTECTIVE ESD BAG.