Table 4-4. Pin Description
Pin
Name
1
NC
2
NC
3
nFAULT signal from BQ79616-Q1 or BQ75614-Q1
4
NC
5
GND
6
USB2ANY 3.3V
7
USB2ANY TX ( RX of BQ79616-Q1 or BQ75614-Q1 )
8
USB2ANY RX ( TX of BQ79616-Q1 or BQ75614-Q1 )
9
NC
10
NC
4.1.4 GPIO or Thermistor Inputs
There are 8 GPIO pins which can either be floated, connected to a thermistor and 10k pullup, or be forced to
certain voltage for a measurement. This can be determined by using the J4 header as shown below. Insert a
shunt from pins 1 and 2 to connect GPIO1 to the thermistor, pins 3 and 4 to connect GPIO2 and so on for the
other GPIOs. Jumper J5 must also be connected to pull the GPIOs up to the TSREF reference voltage for
ratiometric NTC measurements.
Figure 4-3. Sullins Connector Solutions PEC08DAAN (Reference Image Only)
Table 4-5. Connector Information
Designator
Manufacturer
Part Number
Mating Connector
J4
Sullins Connector
Solutions
Manufacturer: PEC08DAAN
N/A
Table 4-6. Pin Description - J4
Pin
Name
Comments
1
GPIO1
GPIO1 Pin of BQ79616-Q1 or BQ75614-Q1
2
GPIO1_R
Connection for GPIO1 to 10k pullup and thermistor
3
GPIO2
GPIO2 Pin of BQ79616-Q1 or BQ75614-Q1
4
GPIO2_R
Connection for GPIO2 to 10k pullup and thermistor
5
GPIO3
GPIO3 Pin of BQ79616-Q1 or BQ75614-Q1
6
GPIO3_R
Connection for GPIO3 to 10k pullup and thermistor
7
GPIO4
GPIO4 Pin of BQ79616-Q1 or BQ75614-Q1
8
GPIO4_R
Connection for GPIO4 to 10k pullup and thermistor
9
GPIO5
GPIO5 Pin of BQ79616-Q1 or BQ75614-Q1
10
GPIO5_R
Connection for GPIO5 to 10k pullup and thermistor
Connectors
SLUUC37B – JULY 2019 – REVISED OCTOBER 2020
BQ79616-Q1, BQ75614-Q1, and BQ79656-Q1 Evaluation Modules
13
Copyright © 2020 Texas Instruments Incorporated