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How shall I connet DSEL and ~QON pins?

@copilot How shall I connet DSEL and ~QON pins?
1y
The BQ25895 datasheet recommends specific configurations for the DSEL and ~QON pins.
  • DSEL Pin: This pin is used to select between either D+/D- or I2C mode for USB input current limit detection. Typically, it's connected to the MCU or left floating/configured as needed based on your application.
  • ~QON Pin: This pin is usually connected to a push-button for battery enable control, often with a pull-up resistor.
Without additional components specifically designated for these pins in your project, here's a general suggestion:
  • DSEL Pin Connection: If you plan to use I2C, then you may connect it to R3:$P1$ or leave it floating if not used.
  • ~QON Pin Connection: Connect IC1:$~QON$ to a pull-down resistor and a push button that can pull it high. You might not have such components in your current schematic, so you will need to add them.
Please let me know if you have a specific application in mind for either of these pins, or if there are additional components you plan to connect.
1y
1
U1
Manufacturer Part Number
NUF2221W1T2G
R5
Resistance
10kΩ
SYS
C3
Capacitance
10uF
R2
Resistance
2k2 Ω
C1
Capacitance
4u7 F
OTG
R10
Resistance
5k1 Ω
R3
Resistance
10kΩ
SCL
C4
Capacitance
10uF
L1
Inductance
2u2 H
LED1
R1
Resistance
260 Ω
R8
Resistance
10kΩ
R7
Resistance
10kΩ
FB1
SYS
JP1
R4
Resistance
10kΩ
SYS
R6
Resistance
10kΩ
/CE
R9
Resistance
5k1 Ω
SYS
C2
Capacitance
47nF
VHOST
SDA
INT
IC1
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