Introduction
3
SLUUC11 – February 2019
Copyright © 2019, Texas Instruments Incorporated
BQ25886 QFN Standalone boost-mode battery charger evaluation module
Advance Information
Table 3. EVM Jumper Connections and Shunt Installation
Jack
Description
BQ25886 Setting
JP1
STAT, PG, CE pins 3.3-V LDO pullup source of either SYS (pin 1 to 2) or BAT (pin 2 to 3)
Shunt pins 2 and 3
JP2
ILIM pin connection to resistor to GND
Installed
JP3
Connects D+ pin to pin 3 of J5 mini-USB port
Installed
JP4
DNI
NA
JP5
TS resistor divider pullup source (REGN) connection
Installed
JP6
Connects D– pin to pin 2 of J5 mini-USB port
Installed
JP7
Connects an onboard 10 k
Ω
from TS pin to GND
Installed
JP8
Connects OTG pin to GND
Open
JP9
Connects CE pin to GND
Installed
JP10
Pulls up STAT through diode and resistor to pullup source
Installed
JP11
Pulls up PG through diode and resistor to pullup source
Shunt pins 2 and 1
JP12
Pull up GND pin to GND
Shunt pins 2 and 3
JP13
NC pin
Open
JP14
DNI
NA
JP15
Pull up CE pin through 10-k
Ω
resistor
Open
JP16
Connects VSET to GND through 18-k
Ω
resistor sets VREG to 8.2V
Open
JP17
Connects VSET to GND through 39.2-k
Ω
resistor sets VREG to 8.8V
Open
JP18
Connects VSET to GND through 75-k
Ω
resistor sets VREG to 8.7V
Open
JP19
Connects VSET to GND through 150-k
Ω
resistor sets VREG to 8.4V
Installed
lists the recommended operating conditions for this EVM.
Table 4. Recommended Operating Conditions
Symbol
Description
MIN
TYP
MAX
Unit
Supply voltage, V
VBUS
Input voltage from AC adapter
4.3
Battery voltage, V
BAT
in charge
mode
Voltage applied at V
BAT
terminal
0 or
floating
8.4
9.2
V
I
BAT
Fast charging current
0
—
2.2
A
Discharging current through internal MOSFET
6
—
—
A
Supply current, I
IN
Maximum input current from AC adapter input
0
—
3.3
A