Introduction
3
SLUUC51A – June 2020 – Revised July 2020
Copyright © 2020, Texas Instruments Incorporated
BQ25790EVM (BMS027) Evaluation Module User's Guide
Table 2. EVM Connections (continued)
Connector/Port
Description
J7
EXTERNAL
THERMISTOR
Input connected to an external battery temperature sensing thermistor
GND
Ground
J8
Communication port
I
2
C communication port for use with the EV2300/2400 Interface Board
J9
Communication port
I
2
C communication port for use with the USB2ANY Interface Adapter
lists the shunt installations available on the EVM, and their respective descriptions.
Table 3. EVM Shunt and Switch Installation
Shunt
Description
BQ25790 Setting
JP1
ACDRV1 pin connection to control ACFET1-RBFET1. Connect this to _acdrv1 when
utilizing the input protection MOSFETs. Connect this to GND when input protection
MOSFETs are not utilized or bypassed.
ACDRV1 to _acdrv1
JP2
ACDRV2 pin connection to control ACFET2-RBFET2. Connect this to _acdrv2 when
utilizing the input protection MOSFETs. Connect this to GND when input protection
MOSFETs are not utilized or bypassed.
ACDRV2 to _acdrv2
JP3
VAC1 to VBUS bypass connection. Connect this when the input protection MOSFET
feature is not desired. This will connect the input source on VIN1 to VBUS.
Not Installed
JP4
VAC2 to VBUS bypass connection. Connect this when the input protection MOSFET
feature is not desired. This will connect 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.
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 input positive rail to charger input selection. Connect this to VAC1 to connect the
USB input to the priority input rail.
USB_VIN to VAC1
JP8
Charger D+ and D- pin short connection. Connect this to simulate a DCP type adapter for
the input source detection and handshake feature.
Not Installed
JP9
BATP pin to BATTERY connection. Connect this when remote battery terminal sensing is
not desired and ship and shutdown mode features are being utilized. Do not connect if
JP13 is shunt is connected.
Installed
JP10
USB Micro B input D+ connection to charger D+ pin. Connect this when the input source
detection and handshake features are desired.
Installed
JP11
SDRV pin connection to control SFET. Disconnect when ship and shutdown mode
features are not desired.
Installed
JP12
BATN pin to PGND connection. Connect this when remote battery terminal sensing is not
desired.
Installed
JP13
BATP pin to BAT connection. Connect this when remote battery terminal sensing is not
desired and ship and shutdown mode features are not being utilized. Do not connect if
JP9 is shunt is connected.
Not Installed
JP14
REGN to TS resistor divider network connection. This must remain connected.
Installed
JP15
ILIM_HIZ pin setting for 500 mA. Connect to set the external input current limit setting to
500 mA.
Not Installed
JP16
ILIM_HIZ pin setting for 1.5 A. Connect to set the external input current limit setting to 500
mA.
Installed
JP17
Thermistor COOL temperature setting. Connect jumper to simulate charger entering
TCOOL (T1-T2) temperature region.
Not Installed
JP18
Thermistor COLD temperature setting. Connect jumper to simulate charger entering
TCOLD (<T1) temperature region.
Not Installed
JP19
CE pin connection to ground to enable charging. When removed, CE pin will pull up to
disable charge.
Installed
JP20
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
