Intrinsyc LANTRONIX Open-Q 624A User Manual page 27

Signal
GND
BATT_P
BATT_N
BAT_ID
BAT_THERM
PM_VREG_BATT_THERM
GND
PMI_GPIO_1
NC
BATT_CHG_EXP_TP1
GPIO_5_BLSPx_UART_RX
GPIO_4_BLSPx_UART_TX
GPIO_7_BLSPx_I2C_SCL
GPIO_6_BLSPx_I2C_SDA
GND
GND
GND
BATT_EXP_USB_VBUS
BATT_EXP_USB_VBUS
BATT_EXP_USB_VBUS
Open-Q™ 624A Development Kit User Kit
Table 3-8. Power Header J26 Pin-out
Description
GND
Battery plus (+) terminal sense
Battery minus (-) terminal sense
Battery ID, MIPI Battery interface,
detects missing battery
Battery temperature input used
by FG and by charger to ensure
safe operation
Not Connected on Open-Q 624A
SOM
GND
Software Configurable GPIO,
WiPower long beacon extension
(LBE) control
NC
Testpoint 1
UART RX
UART TX
I2C Clock
I2C Data
GND
GND
GND
USB VBUS
USB VBUS
USB VBUS
Pin # Signal
J26[1] GND
J26[3] PMI_VDD_CAP
J26[5] CHG_VBAT_SNS
J26[7] PMI_CHG_EN
J26[9] SMB_PARALLEL_CHG_EN
J26[11] SMB_INT
J26[13] SMB_STAT_N
J26[15] FG_ALARM
J26[17] BATT_CHG_EXP_TP2
J26[19] GND
J26[21] OPT_1
J26[23] OPT_2
J26[25] BATT_EXP_1P8
J26[27] GND
J26[29] BATT_EXP_SYS_PWR
J26[31] BATT_EXP_SYS_PWR
J26[33] BATT_EXP_SYS_PWR
J26[35] GND
J26[37] GND
J26[39] GND
Open-Q™ 624A Development Kit
Description
GND
LDO to supply fuel gauge
circuits. Connect to bypass
capacitor only, Do Not
Load.
Sensed battery voltage for
charger circuits
Charger Enable
SMB1350/SMB1351
enable for parallel charging
Leave Floating
Not Connected on Open-Q
624A SOM
Not Connected on Open-Q
624A SOM
Testpoint 2
GND
Leave Floating
Leave Floating
1.8V voltage supply
GND
Battery Voltage Supply
Battery Voltage Supply
Battery Voltage Supply
GND
GND
GND
Pin #
J26[2]
J26[4]
J26[6]
J26[8]
J26[10]
J26[12]
J26[14]
J26[16]
J26[18]
J26[20]
J26[22]
J26[24]
J26[26]
J26[28]
J26[30]
J26[32]
J26[34]
J26[36]
J26[38]
J26[40]
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