SLUUCK2A October 2022 – November 2022 BQ25620 , BQ25622
Table 1-2 lists the input and output connections available on this EVM and their respective descriptions.
| Terminal | Description |
|---|---|
| J1(2) - VIN | Positive rail of the charger input voltage |
| J1(1) - GND | Ground |
| J2(1) - SYSTEM | Positive rail of the charger system output voltage, typically connected to the system load |
| J2(2) - GND | Ground |
| J3(1) - VPB | Positive rail of the charger output voltage for power bank applications in reverse boost mode (OTG). This output also shares the rail with the VIN input rail in forward buck mode |
| J3(2)-GND | Ground |
| J4(3) - BATTERY | Positive rail of the charger battery input, connected to the positive terminal of the external battery |
| J4(2) - ext_ts | Connection available for external thermistor if required |
| J4(1) - GND | Ground |
| J5 | Input source Micro B USB port |
| J6 | I2C connector for the USB2ANY interface board |
| J7 | I2C connector for the EV2400 interface board |
Table 1-3 lists the jumper and shunt installations available on this EVM and their respective descriptions.
Header | Description | BQ25620 Setting | BQ25622 Setting |
|---|---|---|---|
| JP1 | Not applicable | Not Installed | Not Installed |
| JP2 | SCL pull-up rail. Not required if using EV2400 or USB2ANY | Not Installed | Not Installed |
| JP3 | SDA pull-up rail. Not required if using EV2400 or USB2ANY | Not Installed | Not Installed |
| JP4 | Not applicable | Not Installed | Not Installed |
| JP5 | BQ25620EVM: Not applicable.BQ25622EVM: Connects ILIM pin resistor to ILIM pin. | Not Installed | Not Installed |
| JP6 | BQ25620EVM: Micro B USB input D- connection to charger D- pin BQ25622EVM: Not applicable. | Installed | Installed |
| JP7 | PG pin LED indicator connection. On PG enabled chargers, this indicates the Power Good status | Installed | Installed |
| JP8 | STAT pin LED indicator connection. This indicates the current charger status | Installed | Installed |
| JP9 | BQ25620EVM: Micro B USB input D- connection to charger D- pin BQ25622EVM: Not applicable. | Installed | Installed |
| JP10 | Used to connect USB2ANY SDA and SCL lines to a power rail on the PCB. | Not Installed | Not Installed |
| JP11 | BQ25620EVM: TS resistor divider pull-up rail to REGN. BQ25622EVM: TS resistor divider pull-up rail to TS_BIAS. | Short pins 1-2 | Short pins 2-3 |
| JP12 | BQ25620EVM: Charger D+ pin and charger D- pin short connection. Connect this on D+/D- detection enabled chargers to simulate the connection of a DCP-type USB port as defined by USB BC1.2 and set IINDPM register to highest setting. BQ25622EVM: Not applicable. | Installed | Not Installed |
| JP13 | Connect 10 kohm in parallel with TS resistor network to simulate a battery at 25 C. Disconnect if using external thermistor. | Installed | Installed |
| JP14 | CE pin connection to ground to enable charging. When removed, CE pin pulls up to SYS through 10 kohm to disable charge | Installed | Installed |
| JP15 | Not applicable | Not Installed | Not Installed |
| S1 | QON control switch. Press either for exiting Shipping Mode or System Reset. | Default Off | Default Off |
Table 1-4 lists the recommended operating conditions for this EVM.
| Symbol | Description | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VVBUS, VVAC | Input voltage applied to VBUS pin | 3.9 | 18.0 | V | |
| VBAT | Battery voltage applied to BAT pin | 0 | 4.208 | 4.8 | V |
| IVBUS | Input current into VBUS | 0 | 3.2 | A | |
| ISW | Output current from SW flowing to SYS pin load and battery at BAT pin | 3.5 | A | ||
| IBAT | Fast charging current into battery at BAT pin | 0 | 3.5 | A | |
| Continuous RMS discharge current through internal BATFET | 6 | A |