1 Introduction
The BQ25306EVM is an evaluation kit for the BQ25306 integrated battery charge management IC.
1.1 Features
For detailed features and operation, refer to
for a list of devices and their data sheets.
Table 1-1. Device Data Sheets
Device
Data Sheet
EVM Label
Variant
BQ25306
BQ25306EVM
BMS005-004
The BMS005 evaluation module (EVM) is a complete charger module for evaluating an integrated, standalone,
synchronous buck battery charger using any of the devices listed above.
1.2 I/O Descriptions
lists the input and output connections available on this EVM and their respective descriptions.
Table 1-2. EVM I/O Connections
Jack
Description
J1(1) –GND
Ground
J1(2) –EXT_TS
Connect to thermistor of external battery
J1(3) – BATTERY
Positive rail of the charger battery input, connected to the positive
terminal of the external battery
J2(1) –GND
Ground
J2(2) –VIN
Positive rail of the charger input voltage
lists the jumper and shunt installations available on this EVM and their respective descriptions.
Table 1-3. EVM Jumper and Shunt Installation
Jack
Description
BQ25306 Setting
SH-JP1
EN pull-up rail selection.
1-2 pulls EN up to external VDD (EN_CTRL either REGN or external voltage source depending on
JP3 configuration.)
2-3 pulls EN down to GND.
JP1 2-3 Installed
SH-JP2
POL pull-up rail selection.
1-2 POL pull down to GND.
Shunt Not Installed
SH-JP3
EN external VDD rail selection (EN_CTRL)
1-2 pulls EN_CTRL to external voltage supply connected to JP3-1
2-3 pulls EN_CTRL to REGN
Shunt Not Installed
SH-JP4
Set charge regulation voltage of BQ25306 to 4.2V
Installed
SH-JP5
Set charge regulation voltage of BQ25306 to 8.4V
Shunt Not Installed
SH-JP6
VSET Short to GND.
For charge regulation voltage corresponding to this setting, refer to datasheet of the respective
battery charger IC shown in
.
Jumper Not Installed
SH-JP7
VSET Resistor pull down to GND of 10.2kΩ
For charge regulation voltage corresponding to this setting, refer to datasheet of the respective
battery charger IC shown in
.
Jumper Not Installed
SH-JP8
VSET Resistor pull down to GND of 51.1kΩ
For charge regulation voltage corresponding to this setting, refer to datasheet of the respective
battery charger IC shown in
.
Jumper Not Installed
SH-JP9
ICHG Resistor pull down to GND with 40.2kΩ to set charge current to 1A.
Populate both SH-JP9 and SH-JP10 to program 3A charge current.
Installed
SH-JP10
ICHG Resistor pull down to GND with 20kΩ to set charge current to 2A.
Populate both SH-JP9 and SH-JP10 to program 3A charge current.
Shunt Not Installed
Introduction
2
BQ25306 (BMS005) Evaluation Module
SLUUC50A – MARCH 2020 – REVISED DECEMBER 2020
Copyright © 2020 Texas Instruments Incorporated