Intrinsyc LANTRONIX Open-Q 624A, User Manual

Page: 27 / 55

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