Texas Instruments BQ25180 User manual

User’s Guide
BQ25180 EVM User's Guide
ABSTRACT
This user's guide provides detailed testing instructions for the BQ25180 evaluation module (EVM). Also included
are descriptions of the necessary equipment, equipment setup, procedures, the printed-circuit board layouts,
schematics, and the bill of materials (BOM).
Throughout this user's guide, the abbreviation EVM, BQ25180EVM, and the term evaluation module are
synonymous with the BQ25180 evaluation module, unless otherwise noted.
Table of Contents
1 Introduction.............................................................................................................................................................................3
1.1 Features............................................................................................................................................................................. 3
2 EVM Setup............................................................................................................................................................................... 3
3 EVM Connectors and Test Points..........................................................................................................................................5
4 Testing Procedures.................................................................................................................................................................6
4.1 Equipment.......................................................................................................................................................................... 6
4.2 Charge Mode..................................................................................................................................................................... 6
4.3 Ship Mode.......................................................................................................................................................................... 9
5 PCB Layouts..........................................................................................................................................................................10
6 Schematic.............................................................................................................................................................................. 11
7 Bill of Materials..................................................................................................................................................................... 14
8 Revision History................................................................................................................................................................... 17
List of Figures
Figure 4-1. BQ25180 EVM Connections..................................................................................................................................... 6
Figure 4-2. TI Charger GUI Device Selection.............................................................................................................................. 7
Figure 4-3. BQ25180EVM Connected......................................................................................................................................... 8
Figure 4-4. Quick Start.................................................................................................................................................................8
Figure 4-5. Register Map............................................................................................................................................................. 9
Figure 4-6. SHIP_RST Register.................................................................................................................................................. 9
Figure 5-1. Top Overlay............................................................................................................................................................. 10
Figure 5-2. Top Solder............................................................................................................................................................... 10
Figure 5-3. Top Layer.................................................................................................................................................................10
Figure 5-4. Bottom Layer........................................................................................................................................................... 10
Figure 5-5. Bottom Solder..........................................................................................................................................................10
Figure 5-6. Bottom Overlay........................................................................................................................................................10
Figure 6-1. BQ25180EVM Schematic........................................................................................................................................11
Figure 6-2. BQ25180EVM Jumper Connectors......................................................................................................................... 12
Figure 6-3. LDO for Other Peripherals.......................................................................................................................................13
List of Tables
Table 2-1. Jumper Descriptions................................................................................................................................................... 3
Table 2-2. Recommended Operating Conditions.........................................................................................................................4
Table 3-1. Factory Jumper Settings............................................................................................................................................. 5
Table 7-1. Bill of Materials..........................................................................................................................................................14
Trademarks
All trademarks are the property of their respective owners.
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BQ25180 EVM User's Guide 1
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WARNING
Hot surface! Contact may cause burns. Do not touch!
Some components may reach high temperatures >55°C when the board is powered on. The user must
not touch the board at any point during operation or immediately after operating, as high temperatures
may be present.
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1 Introduction
The BQ25180EVM is an evaluation kit for the BQ25180 integrated battery charge management IC. The
BQ25180 is an integrated battery charge management IC that integrates the most common functions for
wearable devices: linear charger, regulated output, manual reset with timer, and ship mode function.
1.1 Features
This EVM has the following features:
• 1-A Linear battery charger
• I2C Configurable Battery Regulation voltage with 0.5% Accuracy
• Configurable Termination Current down to 0.5 mA
• Programmable thermal charging profile with configurable Hot, Warm, Cool, and Cold thresholds
• Power Path Management for powering the system and charging the battery
• 15-nA shutdown mode for longest shelf life
• One Button Wake-up and Reset Input with Adjustable Timers
• I2C Communication control
See the device datasheet for detailed features and operation of the integrated IC
2 EVM Setup
Table 2-1 lists the jumper connections and the jumper description. Table 2-2 lists the recommended operating
conditions.
Table 2-1. Jumper Descriptions
Jumper Name Description
J1 Provides the I2C Pins a pull-up to 3p3V
J2 VIN and GND connector. Input voltage from external power supply. Recommended voltage is 5V and OVP is 5.7V. Max
input voltage is 25V while in OVP
J3 VBAT and GND connector. Battery connection using jumper for easy access
J4 Battery Pack Connecctor. Battery connection using JST header
J5 TS potentiometer connector. Connects TS potentiometer to TS pin. Leaving this jumper open will leave the TS pin open.
J6 USB2ANY connector. For connecting the device to the USB2ANY evaluation board to allow computer to interface with
the EVM
J7 VIO connector to 3p3V
J8, J9 Board Connector to the other module
J10 /INT connector to 3p3V
J11 I2C Pull-up
J14 Mirco-USB connector (optional for VIN) BQ25180EVM Connections
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USB2ANY
Power
Supply
#1
Power
Supply
#2
System
Load
#1
+ - - +
Table 2-2. Recommended Operating Conditions
MIN NOM MAX UNIT
VBAT Battery Voltage Range 2.2 4.6 V
VIN Input Voltage Range 2.7 5.5 V
IIN Input Current Range (IN to SYS) 1.1 A
IBAT Battery Discharge Current (BAT to SYS) 1.5 A
TA Operating Ambient Temperature Range -40 85 °C
TJ Operating Junction Temperature Range -40 125 °C
EVM Setup www.ti.com
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3 EVM Connectors and Test Points
Table 3-1 shows the default configuration for connectors.
Table 3-1. Factory Jumper Settings
Jumper Name Description Setting
J1 I2C Pullup NA
J2 VIN and GND connector NA
J3 VBAT and GND connector NA
J4 Battery Pack Connector NA
J5 TS Potentiometer Connector Connected
J6 USB2ANY Connector NA
J7 VIO Connector to 3p3V. NA
J8, J9 Board connector to other
modules
NA
J10 /INT connector to 3p3V Connect 3p3V to /INT
J11 VSYS and GND connector NA
J14 Micro USB connector (optional for
VIN)
NA
Note
Connecting the J7 jumper will enable the VIO LED. This LED will draw 10mA.
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4 Testing Procedures
4.1 Equipment
This section includes a list of supplies required to perform tests on this EVM
1. Two Power Supplies: Keithley 2400 Powersupply or equivalent
a. Power Supply #1 (PS #1) will be used as input voltage
b. Power Supply #2 (PS #2) will be used as battery voltage
2. 4 Channel Oscilloscope: To monitor voltages at VIN, VBAT, and VSYS
a. Channel 1 (SC #1) will be used to probe VIN
b. Channel 2 (SC #2) will be used to probe VBAT
c. Channel 3 (SC #3) will be used to probe VSYS
3. Computer: A computer with at least one USB port and a USB cable
4. PC communication interface: USB2ANY with the latest firmware
5. Software: Download the TI Charger GUI from Texas Instruments.
4.2 Charge Mode
Connect the equipment as the following:
• Power Supply PS#1: VIN of the BQ25180 at 5V
• Power supply PS#2: VBAT of the BQ25180 at 3.7V
• Scope Channel SC#1: VIN
• Scope Channel SC#2: VSYS
• Scope Channel SC#3: VBAT
Turn ON the supply PS#2, then turn ON the supply PS#1. The VSYS will rise to the level of 4.5V. The device will
begin to charge as long as the TS is left at default configuration and there are no other faults.
VBATVIN
TS/MR Pushbu

onUSB2ANY connec

on VDD connec

on
Figure 4-1. BQ25180 EVM Connections
To adjust the charge current or change other parameters, connect the USB2ANY to the EVM and then startup TI
Charger GUI.
Testing Procedures www.ti.com
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Note
If the supplies (VIN and VBAT) are turned off, you will need to restart the TI Charger GUI for correct
I2C transactions to be reflected in the TI Charger GUI
Figure 4-2. TI Charger GUI Device Selection
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Select the BQ2518X from the charger selection. Click Quick Start or Register Map.
Figure 4-3. BQ25180EVM Connected
The Quick Start is shown in Figure 4-4
Figure 4-4. Quick Start
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The register map is shown in Figure 4-5.
Figure 4-5. Register Map
4.3 Ship Mode
To go to Ship Mode, enable ship mode through an I2C transaction to set EN_SHIP_RST bits or the
PB_LPRESS_ACTION bits as shown in Figure 4-6:
• EN_RST_SHIP = 2b01 (Enable shipmode with wake on button press or adapter insert)
• PB_PRESS_ACTION = 2b10 (Enable shipmode)
Enter ship mode by removing VIN if setting EN_RST_SHIP to 2b01. If setting PB_LPRESS_ACTION to 2b10 to
enable shipmode, hold the TS/MR button for the configured tLPRESS then remove VIN.
You will know you are in Ship Mode as the voltage on the SYS (SC#2) will fall to 0 V.
Figure 4-6. SHIP_RST Register
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5 PCB Layouts
Figure 5-1 through Figure 5-6 show the EVM PCB layout images.
Figure 5-1. Top Overlay Figure 5-2. Top Solder
Figure 5-3. Top Layer Figure 5-4. Bottom Layer
Figure 5-5. Bottom Solder Figure 5-6. Bottom Overlay
PCB Layouts www.ti.com
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6 Schematic
Figure 6-1 illustrates the EVM schematic.
35V
1uF
C4
10V
10µF
C3
25V
4.7uF
C1
25V
0.1uF
C2
TP5
GND
GND
TP6
TP8
TP11
GND
SCL
SDA
TS/MR
VIN
VBAT
SYS
BQ2518x Power Path Battery charger IC
TP12
/INT
SCL
B1
SYS B2
INT
A1
TS/MR D1
SDA
C1
IN
A2
BAT C2
GND D2
BQ25180YBGT
U1
Figure 6-1. BQ25180EVM Schematic
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BQ25180 EVM User's Guide 11
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1
1
2
2
3
3
4
4
5
5
6
6
D D
C C
B B
A A
2 3
1/14/2022
BMS048_RevA_Sche matic.SchDoc
Sheet Title:
Size:
Mod. Date:
File:
Sheet: of
B http://www.ti.com
Contact: http://www.ti.com/support
BQ25180EVM_RevAProject Title:
Des igned for: Public Release
Assembly Variant: [No Variations]
©Texa s Ins truments 2018
Drawn By:
Enginee r: Gautham Ra ma chandran
Texas Instrume nts and/or its lice nsors do not warrant the a ccuracy or completeness of this s pecifica tion or any information containe d the rein. Texas Instrume nts and/or its licensors do not
warrant that this design will meet the specifications , will be s uitable for your application or fit for any particula r purpose, or will operate in an imple mentation. Texa s Instruments and/or its
licensors do not warrant tha t the design is production worthy. You should comple tely validate and test your design imple me ntation to confirm the s ystem functionality for your application.
Not in version controlSVN Rev:
BMS048Number: Rev: Re vA
TID #: N/A
Orderable:
35V
1uF
C4
10V
10µF
C3
25V
4.7uF
C1
25V
0.1uF
C2
TP5
GND
Pot/PB
GND
100k
R6
0
R5
31 42
SW1
430152070826
GND
100k
R3
VIN
GND
TP6
TP8
TP11
1 2
J3
VBAT
GND
1 2
J2
VIN
GND
1 2
3 4
5 6
7 8
9 10
J6
AWHW-10G-0202-T
1
2
J1
VIO
10.0k
R1
10.0k
R2
SDA
SCL
1
2
J5
TS/MR
GND
USB2ANY I2C
M2
1
2
M1
J4
GND
VBAT
GND
SCL
SDA
5
4
1
2
3
6
7
8
9
10
J9
5
4
1
2
3
6
7
8
9
10
J8
+3p3V
SDA
SCL
GND
J1.2
J1.3
J1.4
J1.5
J1.6
J1.7
J1.8
J2.3
J2.4
J2.5
J2.6
J2.7
J2.8
J2.9
J2.10
J2.2 /INT
TS/MR
SCL SDA
1
2
J7
SYS
GND
VIO
10V
1uF
C6 25V
4.7uF
C5
LDO for IO
GND 2
OUT 5
EN
3
IN
1
NC 4
TPS 7A0233P DBVR
U2
VIN
VBAT
SYS
BQ2518x Power Path Battery charger IC
SCL
SDA
TP12
TP7
TP9
/INT
VIO
J2.2
10.0k
R11 1
2
J10
Connectors and Jumper Options
1
2
3
4
5
6
7
8
9
10
11
J14
CONN_105017-0001
GND GND
TP3TP2TP1
/INT
1 2
J11
SYS
GND
SCL
B1
SYS B2
INT
A1
TS/MR D1
SDA
C1
IN
A2
BAT C2
GND D2
BQ25180YBGT
U1
0
R4
+3p3V VIO
GND
R8
PV37W104C01B00
GND
VIO
VIN
0
R9
/INT
Green
1 2
D1
120
R7
SH-J3
SNT-100-BK-G
SH-J4
SNT-100-BK-G
SH-J2
SNT-100-BK-G
Figure 6-2. BQ25180EVM Jumper Connectors
Schematic www.ti.com
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1
2
J7
SYS
GND
VIO
10V
1uF
C6 25V
4.7uF
C5
LDO for IO
GND 2
OUT 5
EN
3
IN
1
NC 4
TPS7A0233PDBVR
U2
Figure 6-3. LDO for Other Peripherals
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BQ25180 EVM User's Guide 13
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7 Bill of Materials
Table 7-1 lists the EVM bill of materials (BOM).
Table 7-1. Bill of Materials
Designator Quantity Value Description Package Reference PartNumber Manufacturer
!PCB1 1 Printed Circuit Board BMS048 Any
C1, C5 2 2.2uF CAP, CERM, 2.2 uF, 25 V,
+/- 10%, X5R, 0402
0402 GRM155R61E225KE11D MuRata
C2 1 0.1uF CAP, CERM, 0.1 uF, 25 V,
+/- 10%, X5R, 0402
0402 GRM155R61E104KA87D MuRata
C3 1 10uF CAP, CERM, 10 µF, 10
V,+/- 20%, X5R, 0402
0402 CL05A106MP8NUB8 Samsung Electro-
Mechanics
C4 1 1uF CAP, CERM, 1 uF, 35 V,
+/- 10%, JB, 0402
0402 C1005JB1V105K050BC TDK
C6 1 1uF CAP, CERM, 1 uF, 10 V,
+/- 10%, X5R, 0402
0402 GRM155R61A105KE15D MuRata
D1 1 Green LED, Green, SMD 1.6x0.8x0.8mm LTST-C190GKT Lite-On
J1, J2, J3, J5, J7, J10,
J11
7 Header, 100mil, 2x1, Tin,
TH
Header, 2 PIN, 100mil,
Tin
PEC02SAAN Sullins Connector
Solutions
J4 1 Header (shrouded), 2mm,
2x1, R/A, SMT
Header, 2x1, 2mm, R/A S2B-PH-SM4-TB(LF)(SN) JST Manufacturing
J6 1 Header(Shrouded),
2.54mm, 5x2, Gold, TH
Header, 2.54mm, 5x2, TH AWHW-10G-0202-T Assman WSW
J8, J9 2 Connector, Receptacle,
100mil, 10x1, Gold
plated, TH
10x1 Receptacle SSW-110-23-F-S Samtec
J14 1 Connector, Receptacle,
Micro-USB Type B, R/A,
Bottom Mount SMT
Micro USB receptacle 105017-0001 Molex
LBL1 1 Thermal Transfer
Printable Labels, 0.650"
W x 0.200" H - 10,000 per
roll
PCB Label 0.650 x 0.200
inch
THT-14-423-10 Brady
R1, R2, R11 3 10.0k RES, 10.0 k, 1%, 0.063
W, 0402
0402 RC0402FR-0710KL Yageo America
Bill of Materials www.ti.com
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Table 7-1. Bill of Materials (continued)
Designator Quantity Value Description Package Reference PartNumber Manufacturer
R5 1 0 RES, 0, 5%, 0.1 W, AEC-
Q200 Grade 0, 0402
0402 ERJ-2GE0R00X Panasonic
R6 1 100k RES, 100 k, 1%, 0.0625
W, AEC-Q200 Grade 0,
0402
0402 AC0402FR-07100KL Yageo America
R7 1 120 RES, 120, 5%, 0.063 W,
0402
0402 CRCW0402120RJNED Vishay-Dale
R8 1 100kΩ 12-Turn Through Hole
Trimmer Resistor with Pin
Terminations, 10% 1/4W
150ppm/C
PTH_POT_6MM4_4MM0 PV37W104C01B00 Murata
R9 1 0 RES, 0, 5%, 0.063 W,
AEC-Q200 Grade 0, 0402
0402 CRCW04020000Z0ED Vishay-Dale
SH-J2, SH-J3, SH-J4 3 1x2 Shunt, 100mil, Gold
plated, Black
Shunt SNT-100-BK-G Samtec
SW1 1 Tactile Switch SPST-NO
Top Actuated Surface
Mount
SMT_TACT 430152070826 Wurth Electronics
TP1, TP2, TP3 3 Test Point, Multipurpose,
Black, TH
Black Multipurpose
Testpoint
5011 Keystone
TP5, TP6, TP8 3 Test Point, Multipurpose,
Red, TH
Red Multipurpose
Testpoint
5010 Keystone
TP7, TP9, TP11, TP12 4 Test Point, Multipurpose,
Yellow, TH
Yellow Multipurpose
Testpoint
5014 Keystone
U1 1 1-Cell I2C/Standalone
Linear Charger with
Power Path, Regulated
System Output and Push-
Button Controller
DSBGA8 BQ25180YBGT Texas Instruments
U2 1 1-uA IQ, 200-mA,
Ultralow IQ Low-Dropout
Regulator, DBV0005A
(SOT-23-5)
DBV0005A TPS7A0233PDBVR Texas Instruments
FID1, FID2, FID3 0 Fiducial mark. There is
nothing to buy or mount.
N/A N/A N/A
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Table 7-1. Bill of Materials (continued)
Designator Quantity Value Description Package Reference PartNumber Manufacturer
R3 0 100k RES, 100 k, 1%, 0.0625
W, AEC-Q200 Grade 0,
0402
0402 AC0402FR-07100KL Yageo America
R4 0 0 RES, 0, 5%, 0.1 W, AEC-
Q200 Grade 0, 0402
0402 ERJ-2GE0R00X Panasonic
Bill of Materials www.ti.com
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8 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (January 2022) to Revision B (February 2022) Page
• Added Hot Surface Warning............................................................................................................................... 3
Changes from Revision * (August 2021) to Revision A (January 2022) Page
• Production release of EVM user's guide.............................................................................................................1
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BQ25180 EVM User's Guide 17
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