Introduction
4
SLUUC51A – June 2020 – Revised July 2020
Copyright © 2020, Texas Instruments Incorporated
BQ25790EVM (BMS027) Evaluation Module User's Guide
Table 3. EVM Shunt and Switch Installation (continued)
Shunt
Description
BQ25790 Setting
(1)
EV2400 internal 3.3V pullup rail is not active by default. Requires modification to the internal circuit of the EV2400.
JP21
Thermistor WARM temperature setting. Connect jumper to simulate charger entering
TWARM (T3-T5) temperature region.
Not Installed
JP22
Thermistor HOT temperature setting. Connect jumper to simulate charger entering THOT
(>T5) temperature region.
Not Installed
JP23
ILIM_HIZ pin setting for HIZ mode. Connect to enter the charger high impedance (HIZ)
mode to disable the converter.
Not Installed
JP24
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
JP25
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
JP26
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
JP27
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
JP28
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
JP29
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
JP30
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 frequencyv
Not Installed
JP31
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
JP32
Input connection for onboard PULLUP rail LDO. Connect to power onboard 3.3-V pull-up
rail. LDO input will be connected via diode-OR between VBUS and BAT.
Installed
JP33
EV2400 internal pull up to PULLUP connection. Connect to use EV2400 internal 3.3-V
pull up to drive the EVM PULLUP rail.
(1)
Not Installed
JP34
PG pin LED indicator connection. On PG enabled chargers, this indicates the Power
Good status.
Installed
JP35
STAT pin LED indicator connection. This indicates the current charger status.
Installed
JP36
USB2ANY internal pull up to PULLUP connection. Connect to use the USB2ANY internal
3.3-V pull up 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
1.3
Recommended Operating Conditions
Table 4. Recommended Operating Conditions
Description
MIN
TYP
MAX
Unit
V(VINx) at J1 or J2
Power supply voltage to the external blocking FETs
which allow power to VBUS pin
3.6
24
V
I(INx) into J1 or J2
Power supply current, which can be limited by
charger's input current limit feature (IINDPM)
0.01
3.3
A
V(BATTERY) voltage at J5 Battery voltage supported for pre charge
2.2
3.8(1S), 7.6(2S),
11.4(3S), 15.2V(4S)
18.8
V
I(BATTERY) out of/into J5
Battery charge current
0.01
2 (1S, 2S), 1(3S,
4S)
5
A
V(SYS) at J3
System voltage regulation range
3.2
19
V
I(SYS) out of J3
System load current
0
5
A
