Datasheet

www.ti.com Circuit Module Physical Layouts, Bill of Materials, and Schematic
Test Point Description
TP18 PGND
TP19 bq24192 SW pin
TP20 bq24192 SW signal
TP21 bq24192 PMID pin
TP22 PGND
TPA1 PACK-
TPA2 bq27531 SOC_INT pin
TPD1 bq27531 VCC pin
TPD3 bq27531 TS pin
TDPE3 External thermistor output
TPE3 bq27531 BI/TOUT pin
2.4 Control and Key Parameters Setting
Jumper Description Default Factory Setting
Shorting jumper for USB data lines DM (D-) and DP (D+). When shorted,
JP1
USB input current limit defaults to 1.5 A. Otherwise, USB100 mode is INSTALLED
USB D+/D-
selected.
2-3 (PSEL = LO): Indicates that an ac adapter is connected to the USB input
JP2 and sets the USB input current limit to 1.5 A.
1-2 (PSEL = HI)
PSEL 1-2 (PSEL = HI): Indicates that a USB source is connected to the USB input
and sets the input current limit to 500 mA. (DEFAULT)
JP3
When installed, OTG feature will be disabled. NOT INSTALLED
OTG
JP4 When installed, charging is enabled. INSTALLED
CHARGE ENABLE
JP5 2-3: SOC_INT is tied to external pull-up
1-2 VCC
SOC_INT 1-2: SOC_INT is tied to onboard VCC through pull-up (DEFAULT)
JP6 2-3: Connect D-/PG to D-
1-2 PG
D-/PG 1-2: Connect D-/PG to PG (DEFAULT)
JP7
1-2 ON: Fuel gauge enable (CE) pin high for normal operation (DEFAULT)
FUEL GAUGE 1-2 ON
2-3 OFF: Fuel gauge enable (CE) pin low to disable gauging
ENABLE
3 Circuit Module Physical Layouts, Bill of Materials, and Schematic
This section contains the board layout, bill of materials, assembly drawings, and schematic for the
bq27531 circuit module.
3.1 Board Layout
This section shows the printed-circuit board (PCB) layers (Figure 2 through Figure 5), assembly drawing,
and schematic for the bq27531 module.
5
SLUUA90–April 2013 bq27531EVM with bq27531 Battery Management Unit Impedance Track™
Fuel Gauge and bq24192 4.5-A, Switch-Mode Battery Charger for Single-Cell
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