UM-PM-039
DA9070 / DA9231 Fuel Gauge Development Kit
NDA Confidential
User Manual
Revision 2.1
28-Oct-2018
15 of 18
© 2018 Dialog Semiconductor
Connectors for DA9231 Evaluation
Table 5: DA9231 Input and Output Connectors
Connectors
Pin
Names
Descriptions
J4
(VO_BUCK_SL)
+/ S+/ S-/ -
+ and - are terminals for connecting external load to
DA9231 Buck output; S+ and S- are kelvin sense
points for DA9231 Buck output.
J7
VLDO_SL/ AGND
Terminals for connecting external load to DA9231
LDO output.
J15
5V_USB/
VDD_SYS_SL/
VDD_SYS_M/ S+/ S-/
PGND
DA9231 Input supply selection and voltage sense.
DA9231 input terminal (VDD_SYS_SL) can be
selected from 5V_USB or VDD_SYS_M of DA9070.
S+ and S- are kelvin sense points for DA9231 Buck
input.
J22
VDD/ IC_EN/ AGND
Set IC_EN to VDD to automatically start the
DA9231 when VDD is applied. Set IC_EN to AGND
to completely disables the DA9231, including I2C
communication.
J23
VDD_SYS_SL/
VDD_LDO_SL/
VO_BUCK_SL
LDO input supply selection. LDO input terminal
VDD_LDO_SL can be selected from either DA9231
input VDD_SYS_SL or DA9231 Buck output
VO_BUCK_SL.
J25
VO_BUCK_SL/ VDDIO
V2P5/ VDDIO
VLDO_SL/ VDDIO
VO_BUCK_M/ VDDIO
VDDIO voltage selection.
VDDIO can be connected from 4 options by
installing a jumper between VDDIO pin and the pin
next to its left: DA9070 Buck, DA9231 Buck,
DA9231 LDO, or independent 2.5V supply.
For evaluation purposes, the 2.5V supply position is
recommended to provide communications
regardless of which IC is enabled.
