Texas Instruments TPS65185 User manual

1
SLVU548A–October 2011–Revised November 2017
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TPS65185 Evaluation Module
User's Guide
SLVU548A–October 2011–Revised November 2017
TPS65185 Evaluation Module
The hardware and software described in this document may slightly vary from the content of the EVM
package. However, operating and installation procedures remain the same.
Contents
1 EVM Package Contents..................................................................................................... 2
2 Hardware...................................................................................................................... 2
3 Software....................................................................................................................... 2
4 EVM Overview ............................................................................................................... 3
4.1 Powering Up the EVM - GPIO Control........................................................................... 4
5 Software Installation Instruction............................................................................................ 4
6 Powering Up the EVM - Software Control................................................................................ 5
6.1 Configuration Registers/BASIC Tab.............................................................................. 5
6.2 GPIO/I2C Controls Tab............................................................................................. 6
7 Other Functions.............................................................................................................. 7
8 Application Considerations ................................................................................................. 7
9 EVM Schematic.............................................................................................................. 8
10 Bill of Materials............................................................................................................... 8
List of Figures
1 Included Hardware .......................................................................................................... 2
2 TPS65185 EVM.............................................................................................................. 3
3 setup.exe File Location ..................................................................................................... 4
4 Startup Panel TPS65185 Control Software .............................................................................. 5
5 GPIO/I2C Control Tab ....................................................................................................... 6
6 JP1, JP2, and JP3 Must Be Removed Before Using the GUI GPIO Control........................................ 6
List of Tables
1 Bill of Materials............................................................................................................... 9
Trademarks
All trademarks are the property of their respective owners.

USB Interface
Adapter
TPS65185 EVM
Ribbon Cable
USB Cable
EVM Package Contents www.ti.com
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1 EVM Package Contents
The EVM package contains the following components:
• EVM (TPS65185 installed)
• User’s guide
• USB interface adapter
• USB interface cable
• Ribbon cable
• Software
2 Hardware
Figure 1. Included Hardware
3 Software
• TPS65185 GUI setup file: setup.exe

TPS65185
(installed)
GPIO JUMPERS
USB interface
connector
www.ti.com EVM Overview
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4 EVM Overview
Figure 2 identifies the main components of the EVM. The exact configuration of the EVM may vary from
the image below.
Figure 2. TPS65185 EVM

EVM Overview www.ti.com
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4.1 Powering Up the EVM - GPIO Control
To power up the EVM follow the steps outlined below:
• Install WAKEUP jumper in the GND position.
• Install VCOM_CTRL jumper in the GND position.
• Install PWRUP jumper in the VIO position.
• Connect the EVM to the USB interface adapter using the 10-lead ribbon cable.
• Connect the USB interface connector to the computer USB port using a standard USB cable.
• Connect a 3-V - 6-V supply from the VIN terminal to GND.
• Move the WAKEUP jumper from the GND position to VIO position.
The TPS65185 should start immediately with the predefined power-up sequence and voltage settings.
NOTE: Please note that although in this example no software control and therefore no I2C
communication is required, the USB interface still needs to be connected. This is because
the interface board also provides the 3.3-V VIO rail. To operate the EVM without the
interface, connect a 3.3-V supply from VIO to GND.
5 Software Installation Instruction
The following section explains the procedure for installing the Graphical User Interface (GUI) onto a
Windows based PC. A USB interface adapter is required to connect the EVM to a PC and should have
been provided with the EVM.
Additional interfaces can be ordered through www.ti.com/tool/usb-to-gpio.
If the software has been installed already, skip the following section and continue at Operating
Instructions.
To install the EVM software follow the steps outlined below:
• Copy the TPS65185 folder to your computer.
• Double-click on the setup.exe file in the TPS65185\Volume directory.
• Follow the prompts to finish the installation.
• At the end of the installation you may be asked to reboot your computer.
Figure 3. setup.exe File Location

BIT=1
BIT=0
www.ti.com Powering Up the EVM - Software Control
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TPS65185 Evaluation Module
6 Powering Up the EVM - Software Control
To power up the EVM follow the steps outlined below:
• Install WAKEUP jumper in the GND position.
• Install VCOM_CTRL jumper in the GND position.
• Install PWRUP jumper in the GND position.
• Connect the USB interface connector to the computer USB port using a standard USB cable.
• Connect a 3-V - 6-V supply from the VIN terminal to GND.
• Move the WAKEUP jumper from the GND position to VIO position.
• Run the TPS65185.exe software:
– Click on “start".
– Click on “All Programs”.
– Select TPS65185 program group.
– Click on TPS65185.
The following window should appear:
This image is for illustration only and does not represent the default register settings.
Figure 4. Startup Panel TPS65185 Control Software
Update the Slave Address to 0x68h and click on the ACTIVE bit in the ENABLE register. All regulators
should power up.
6.1 Configuration Registers/BASIC Tab
The BASIC panel represents the register map and contains a button for each bit. A depressed button
represents a bit set to ‘1’ and a released button represents a ‘0’.

Powering Up the EVM - Software Control www.ti.com
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6.2 GPIO/I2C Controls Tab
Use this page to change the I2C interface data rate and SDA/SCL pullup resistors which are built into the
USB interface adapter.
This tab also provides controls for the VCOM_CTRL, PWRUP, and WAKEUP pins. Please note that the
jumpers JP1, JP2, and JP3 must be removed to control the pins through the GUI.
Figure 5. GPIO/I2C Control Tab
Figure 6. JP1, JP2, and JP3 Must Be Removed Before Using the GUI GPIO Control

www.ti.com Other Functions
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7 Other Functions
• To clear the GUI panel, press the “CLEAR ALL” button. Note that this function has no effect on the
TPS65185. This function is useful to verify that “READ ALL” function is working properly.
• Individual registers can be read and written to using the READ and WRITE buttons. The data is
displayed in HEX format.
• The default setting for the GUI is to update the register settings immediately after the user changes
values. Select “MANUAL” update control if you wish to change multiple values before writing to the
TPS65185.
• The GUI periodically polls the TMST_VAL, ENABLE, INT1, INT2, and PG_STAT registers to reflect the
current status of the device. The polling interval can be adjusted by the user by entering a number
below the "AUTO POLL" button. Release the "AUTO POLL" button to disable automatic polling.
8 Application Considerations
For production systems, VDDH_D and VEE_D should have dedicated 100-nF capacitors to GND. This
evaluation module demonstrates the various features of the TPS65185x, but does not necessarily
constitute a robust production design.

4.7uF 10VC1
10uF 10VC4
1MR3
VIN
VIO
4.7uF 10VC2
1MR7VIO
4.7uF 25V
X6S
C12
4.7uF 25V
X6S
C13
1
122
4.7uH
L2 A2
K
1D6
10uF
10V
C19
4.7uF 25V
X6S
C27
VN
D4 D5
10nF 25VC23
4.7uF 25V
X6S
C30
4.7uF 25V X6S
C31VPOS
1
122
2.2uHL1 VIN
10uF 25V X6S
C6
D1
4.7uF X6S
C34
D2 D3
4.7uF 25V
X6S
C26
10nF 25VC21
SDA SCL PWRUP
VN
4.7uF 10VC5
43KR2
WAKEUP
VNEG 1MR6
1MR1
47.5kR10
52.3KR4
VB
10KNTC
DNIC17 DNIC14
VN
VEE
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GNDGND
GND
GND
GND
GND
GND
GND
GND
GND
VDDH
VIN3P3 V3P3
VN VCOM
10KR8 10KR9
VIO VIO
VCOM_CTRL
4.7uF 25V X6S
C33
GND
GND
GND
VREF
1
nINT
2
VNEG
3
VNEG_IN
4
WAKEUP
5
DGND
6
INT_LDO
7
AGND1
8
VNEG_DIS
9
VIN
10
N/C
11
VCOM_CTRL
12
N/C
13
VCOM_DIS
14
VCOM
15
VCOM_PWR
16
SCL
17
SDA
18
VPOS_DIS
19
N/C
20
PWRUP
21
PBKG
22
PWR_GOOD
23
VIN_P
24
VN_SW 25
VN 26
VEE_IN 27
VEE_DRV 28
VEE_DIS 29
VEE_D 30
VEE_FB 31
PGND2 32
VDDH_FB 33
VDDH_D 34
VDDH_DIS 35
VDDH_DRV 36
VDDH_IN 37
N/C 38 N/C 39
VB_SW 40
PGND1 41
VB 42
VPOS_IN 43
VPOS 44
VIN3P3 45
V3P3 46
TS 47
AGND2 48
PPAD
0
U1
TPS65185
nINT
GND
VIN
GND
VPOS
4.7uF X6S
C7
GND
0R12VNEG
0R5
0R11
0R13 0R14
TP1VREF
TP3VNEG
TP7INT_LDO
TP10VIN
TP15VCOM
TP33VDDH_FB
TP31VEE_FB
TP44VPOS TP47TS
GND
TP43VB
*TP27VN
TP2nINT
TP23PWR_GOOD
VIO WAKEUP
PWRUP
VCOM_CTRL
JP1
JP2
JP3
VPOS
3
1
2
4
J1
VCOM
VNEG
GND
VEE
VDDH
3 1 2 4
J2
VIN
GND
3
1
2
4
J3
GND
8
5
2
9
6
3
10
7
4
1
J4
GPIO7
GPIO6
GPIO5
GPIO4
V3p3
GND
GPIO3
GPIO2
SCL
SDA
GND
SDA
SCL
VIO
100kR17 100kR16 100kR15 PWRUP
VCOM_CTRL
WAKEUP
VIN3P3 V3P3
GND
GND
100nF25VC35 GND
100nF25VC36 GND
VN
*TP29VEE
*TP35VDDH
Copyright © 2017, Texas Instruments Incorporated
EVM Schematic www.ti.com
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TPS65185 Evaluation Module
9 EVM Schematic
10 Bill of Materials
Table 1 lists the bill of materials for the TPS65185EVM.

www.ti.com Bill of Materials
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Table 1. Bill of Materials
Quantity Designator Value Footprint Manufacturer Manufacturer's Part No. Description Comment
3 C1, C2, C5 4.7uF 0603 Murata GRM188R60J475KE19D CAP CER 4.7UF 6.3V X5R 0603 Cap
2 C4, C19 10uF 0603 Murata GRM188R60G106ME47D CAP CER 10UF 4V X5R 0603 Cap
1 C6 10uF 0805 Murata GRM21BR70J106KE76L CAP CER 10UF 6.3V X7R 0805 Cap
9 C7, C12, C13, C26, C27, C30, C31, C33, C34 4.7uF 1206 Taiyo Yuden UMK316BJ475KL-T CAP CER 4.7UF 50V X5R 1206 Cap
1 C14 DNI 0603 DNI
1 C17 DNI 0603 Cap
2 C21, C23 10nF 0603 Murata GRM188R71E103KA01D CAP CER 10000PF 25V 10% X7R 0603 Cap
2 C35, C36 100nF 0603 Murata GRM188R71E104KA01D CAP CER .1UF 25V 10% X7R 0603 Cap
6 D1, D2, D3, D4, D5, D6 SOD-123 On Semi MBR130T1G DIODE SCHOTTKY 30V 1A SOD123 Diode
3 J1, J2, J3 ED1514 TB_4X3.5MM On Shore ED555/4DS TERMINAL BLOCK 3.5MM 4POS PCB
1 J4 2510-6002UB CONN_2510-6002UB 3M 2510-6002UB SHROUDED HEADER 10 POS STRAIGHT CONN_2510-6002UB
3 JP1, JP2, JP3 JMP0.3 Samtec Inc TSW-150-07-T-D CONN HEADER 100POS .100" DL TIN JUMPER 3 PIN
1 L1 2.2uH CDRH6D28 Murata LQH55DN2R2M03L Power Inductors 2.2uH 20% Inductor
1 L2 4.7uH CDRH6D28 Murata LQH55DN4R7M03L Power Inductors 4.7uH 20% Inductor
1 NTC 10K 0603 Rohm Semi MCR03EZPFX1002 RES 10.0K OHM 1/10W 1% 0603 SMD
4 R1, R3, R6, R7 1M 0603 Rohm Semi MCR03EZPFX1004 RES 1.00M OHM 1/10W 1% 0603 SMD Res1
1 R2 43K 0603 Rohm Semi MCR03EZPFX4302 RES 43.0K OHM 1/10W 1% 0603 SMD
1 R4 52.3K 0603 Rohm Semi MCR03EZPFX5232 RES 52.3K OHM 1/10W 1% 0603 SMD Res1
5 R5, R11, R12, R13, R14 0 0603 Rohm Semi MCR03EZPJ000 RES 0.0 OHM 1/10W 0603 SMD Res1
2 R8, R9 10K 0603 Rohm Semi MCR03EZPFX1002 RES 10.0K OHM 1/10W 1% 0603 SMD Res1
1 R10 47.5k 0603 Rohm Semi MCR03EZPFX4752 RES 47.5K OHM 1/10W 1% 0603 SMD Res1
3 R15, R16, R17 100k 0603 Rohm Semi MCR03EZPFX1003 RES 100K OHM 1/10W 1% 0603 SMD Res1
1 TP1 STD TP-032 Keystone Electronics 5002 TEST POINT PC MINI .040"D WHITE VREF
1 TP2 STD TP-032 Keystone Electronics 5002 TEST POINT PC MINI .040"D WHITE nINT
1 TP3 STD TP-032 Keystone Electronics 5002 TEST POINT PC MINI .040"D WHITE VNEG
1 TP7 STD TP-032 Keystone Electronics 5002 TEST POINT PC MINI .040"D WHITE INT_LDO
1 TP10 STD TP-032 Keystone Electronics 5002 TEST POINT PC MINI .040"D WHITE VIN
1 TP15 STD TP-032 Keystone Electronics 5002 TEST POINT PC MINI .040"D WHITE VCOM
1 TP23 STD TP-032 Keystone Electronics 5002 TEST POINT PC MINI .040"D WHITE PWR_GOOD
1 TP27 STD TP-032 Keystone Electronics 5002 TEST POINT PC MINI .040"D WHITE VN
1 TP29 STD TP-032 Keystone Electronics 5002 TEST POINT PC MINI .040"D WHITE VEE
1 TP31 STD TP-032 Keystone Electronics 5002 TEST POINT PC MINI .040"D WHITE VEE_FB
1 TP33 STD TP-032 Keystone Electronics 5002 TEST POINT PC MINI .040"D WHITE VDDH_FB
1 TP35 STD TP-032 Keystone Electronics 5002 TEST POINT PC MINI .040"D WHITE VDDH
1 TP43 STD TP-032 Keystone Electronics 5002 TEST POINT PC MINI .040"D WHITE VB
1 TP44 STD TP-032 Keystone Electronics 5002 TEST POINT PC MINI .040"D WHITE VPOS
1 TP47 STD TP-032 Keystone Electronics 5002 TEST POINT PC MINI .040"D WHITE TS
1 U1 RGZ (S-PQFP-N48) TPS65185
4 N/A N/A N/A 3M SJ-5303 (CLEAR) BUMPON HEMISPHERE .44X.20 CLEAR
3 N/A NA N/A Sullins Connector SPC02SYAN CONN JUMPER SHORTING GOLD FLASH

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Revision History
Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (October 2011) to A Revision .................................................................................................... Page
• Added slave address update to the Powering Up the EVM - Software Control section ......................................... 5
• Added the Application Considerations section ........................................................................................ 7
• Changed the EVM Schematic ........................................................................................................... 8
• Changed the Bill of Materials............................................................................................................ 9