SLUUCB5E June 2020 – July 2022 BQ25792 , BQ25798
Table 1-2 table lists the BQ2579XEVM board connections and ports.
| Connector, Port | Description | |
|---|---|---|
| J1 | VIN1 | Positive rail of the priority input adapter or power supply |
| GND | Ground | |
| J2 | VIN2 | Positive rail of the secondary input adapter or power supply |
| GND | Ground | |
| J3 | SYSTEM | Positive rail of the charger system output voltage, typically connected to the system load |
| GND | Ground | |
| J4 | VPMID | Positive rail of the charger output voltage for reverse mode (OTG). This output also shares the rail with VBUS in forward mode |
| GND | Ground | |
| J5 | BATTERY | Positive rail of the charger battery input |
| SNS_BATP | Input connected to the positive terminal of the battery for remote battery voltage measurement | |
| GND | Ground | |
| J6 | USB port | USB Micro B port used for input source type detection and handshaking. Connected to either VIN1 or VIN2 |
| J7 | EXTERNAL THERMISTOR | Input connected to an external battery temperature sensing thermistor |
| GND | Ground | |
| J8 | Communication port | I2C communication port for use with the EV2300/2400 Interface Board |
| J9 | Communication port | I2C communication port for use with the USB2ANY Interface Adapter (for future use) |
Table 1-3 lists the shunt installations available on the EVM, and their respective descriptions.
| Shunt | Description | BQ25792/6/8 Setting |
|---|---|---|
| JP1 | ACDRV1 pin connection to control ACFET1-RBFET1. Connect this to _acdrv1 net (labeled VAC1 FET) when utilizing the input protection MOSFETs. Connect this to GND when input protection MOSFETs are not used or bypassed | ACDRV1 to VAC1 FETs (short pins 1 to 2) |
| JP2 | ACDRV2 pin connection to control ACFET2-RBFET2. Connect this to _acdrv2 net (labeled VAC2 FET) when utilizing the input protection MOSFETs. Connect this to GND when input protection MOSFETs are not used or bypassed | ACDRV2 to VAC2 FETs (short pins 1 to 2) |
| JP3 | VIN1/VAC1 to VBUS bypass connection. Connect this when the input protection MOSFET feature is not desired. This connects the input source on VIN1 to VBUS. | Not Installed |
| JP4 | VIN2/VAC2 to VBUS bypass connection. Connect this when the input protection MOSFET feature is not desired. This connects the input source on VIN2 to VBUS. | Not Installed |
| JP5 | BAT to BATTERY bypass connection. Connect this when the ship and shutdown mode features are not desired and JP8 pins 1 and 2 are shorted. | Not Installed |
| JP6 | USB Micro B input D– connection to charger D- pin. Connect this when the input source detection and handshake features are desired. | Installed |
| JP7 | USB port J6 positive rail to charger VBUS selection. Use shunt to select either VIN1/VAC1 or VIN2/VAC2 as the connection for the USB port. | USB_VIN to VAC1 |
| JP8 | SDRV pin connection to control SFET. Short pins 1 to 2 of JP8 and install shunt across JP5 when ship and shutdown mode features are not desired. Short pins 2 to 3 of JP8 and remove shunt from JP5 when ship and shutdown mode features are desired. | Short pins 2 to 3 |
| JP9 | BATP pin connection. BATP is always connected to J5 pin 2 for remote battery sense. If off-board remote sense is not used, short pin 2 to J5 pin 1 (BATTERY) for the charger constant voltage sensing to occur at the J5 connector after the Q5 ship mode FET Short pin 2 to pin 3 (BAT pin) for the charger constant voltage sensing to occur on the PCB board close to the IC before Q5 ship mode FET. Do not leave BATP pin floating. | Short pin 2 to J5 pin 1 (BATTERY) |
| JP10 | Charger D+ and D- pin short connection. Connect this to simulate a DCP type adapter for the input source detection and handshake feature. Remove in order to use the charger's D+/D- detection feature. | Installed |
| JP11 | USB Micro B input D+ connection to charger D+ pin. Connect this when the input source detection and handshake features are desired. | Installed |
| JP12 | REGN to TS resistor divider network connection. This must remain connected. | Installed |
| JP13 | ILIM_HIZ pin setting for 500 mA. Connect to set the external input current limit setting to 500mA | Not Installed |
| JP14 | ILIM_HIZ pin setting for 1.5 A. Install shunt to set the external input current limit setting to 1.5 A. | Installed |
| JP15 | Thermistor COOL temperature setting. Connect jumper to simulate charger entering TCOOL (T1-T2) temperature region. | Not Installed |
| JP16 | Thermistor COLD temperature setting. Connect jumper to simulate charger entering TCOLD (<T1) temperature region. | Not Installed |
| JP17 | CE pin connection to ground to enable charging. When removed, CE pin will pull up to disable charge | Installed |
| JP18 | Thermistor NORMAL temperature setting. Connect jumper to simulate charger entering TNORMAL (T2-T3) temperature region. Keep connected when testing other thermistor temperature settings (JP17 - TCOOL, JP18 - TCOLD, JP21 - TWARM, JP22 - THOT). Remove this jumper whenever using an externally connected thermistor. | Installed |
| JP19 | Thermistor WARM temperature setting. Connect jumper to simulate charger entering TWARM (T3-T5) temperature region. | Not Installed |
| JP20 | Thermistor HOT temperature setting. Connect jumper to simulate charger entering THOT (>T5) temperature region. | Not Installed |
| JP21 | ILIM_HIZ pin setting for HIZ mode. Connect to enter the charger high impedance (HIZ) mode to disable the converter | Not Installed |
| JP22 | PROG pin setting for 1S, 1.5 MHz. Connect to configure charger default setting to 1S charge regulation voltage, 2 A charging current, and 1.5 MHz switching frequency | Not Installed |
| JP23 | PROG pin setting for 1S, 750 kHz. Connect to configure charger default setting to 1S charge regulation voltage, 2 A charging current, and 750 kHz switching frequency | Not Installed |
| JP24 | PROG pin setting for 2S, 1.5 MHz. Connect to configure charger default setting to 2S charge regulation voltage, 2 A charging current, and 1.5 MHz switching frequency | Installed |
| JP25 | PROG pin setting for 2S, 750 kHz. Connect to configure charger default setting to 2S charge regulation voltage, 2 A charging current, and 750 kHz switching frequency | Not Installed |
| JP26 | PROG pin setting for 3S, 1.5 MHz. Connect to configure charger default setting to 3S charge regulation voltage, 1 A charging current, and 1.5 MHz switching frequency | Not Installed |
| JP27 | PROG pin setting for 3S, 750 kHz. Connect to configure charger default setting to 3S charge regulation voltage, 1 A charging current, and 750 kHz switching frequency | Not Installed |
| JP28 | PROG pin setting for 4S, 1.5 MHz. Connect to configure charger default setting to 4S charge regulation voltage, 1 A charging current, and 1.5 MHz switching frequency | Not Installed |
| JP29 | PROG pin setting for 4S, 750 kHz. Connect to configure charger default setting to 4S charge regulation voltage, 1 A charging current, and 750 kHz switching frequency | Not Installed |
| JP30 | Input connection for onboard PULLUP rail LDO. Connect to power onboard 3.3V pullup rail. LDO input will be connected via diode-OR between VBUS and BAT | Installed |
| JP31 | EV2400 internal pullup to PULLUP connection. Connect to use EV2400 internal 3.3 V pullup to drive the EVM PULLUP rail. | Not Installed |
| JP32 | STAT pin LED indicator connection. This indicates the current charger Status | Installed |
| JP33 | USB2ANY internal pullup to PULLUP connection. Connect to use the USB2ANY internal 3.3 V pullup to drive the EVM PULLUP rail | Not Installed |
| S1 | QON control switch. Press to either exit Ship Mode or reset the System Power | Default Off |