Pin Function Grouping Assistance

Make the functional group more general.

Thought for 8 sec

I’ll simplify the existing pin groups in place, preserving the datasheet descriptions and pin types while replacing the detailed group names with broader categories.

Worked for 1 min 38 sec

flux

Done — I generalized the terminal groups to broad categories: Power, Ground, Control, Analog, and I2C.

I verified all 33 terminals still have exactly one functional group, and updated the BQ25730RSNR Pin Functional Groups project file to match.

adrian95

Add a Section property to all pins, and apply the same value used in the Pin Group property to each pin's Section property.

Thought for 10 sec

flux

I’ll copy each terminal’s current Pin Group value into its Section property, then verify all 33 terminals were updated consistently.

Worked for 1 min 13 sec

flux

Done — I added the Section property to all 33 terminals and set each one to match its current Pin Group value.

Verified examples:

Power pins: Pin Group = Power, Section = Power
Ground pins: Pin Group = Ground, Section = Ground
Control pins: Pin Group = Control, Section = Control
Analog pins: Pin Group = Analog, Section = Analog
I2C pins: Pin Group = I2C, Section = I2C

Run ERC check

Find mismatches

Document convention

Check VBUS pins

Files

Pins

Symbol

Layout

Preview

BQ25730RSNR Pin Functional Groups

Datasheet source used: TI BQ25730, Table 6-1 Pin Functions and Figure 6-1 RSN Package 32-pin WQFN.

Each physical pin is assigned to exactly one broad functional group. The exposed pad is included as pin 33 in the Flux terminal set.

Broad groups used

Power: input power, internal regulator output, power-stage switching/bootstrap nodes, and current-sense power pins.
Ground: power ground and exposed thermal pad.
Control: gate-drive outputs, mode/configuration pins, current-limit control, and open-drain status/control outputs.
Analog: monitor outputs, compensation pins, and comparator pins.
I2C: digital host communication pins.

Table

Pin	Terminal	General group	Pin type	Datasheet-grounded function
1	VBUS	Power	Power In	Charger input voltage; input low-pass filter recommended.
2	ACN	Power	Power In	Input current sense amplifier negative input.
3	ACP	Power	Power In	Input current sense amplifier positive input.
4	CHRG_OK	Control	Open Collector	Open-drain active-high good power-source indicator.
5	OTG/VAP/FRS	Control	Input	Active-high OTG/VAP/FRS mode enable.
6	ILIM_HIZ	Control	Input	Input current limit and HIZ analog control.
7	VDDA	Power	Power In	Internal reference bias, supplied from REGN through 10 ohm.
8	IADPT	Analog	Output	Adapter current monitor and inductance-programming pin.
9	IBAT	Analog	Output	Battery charge/discharge current monitor output.
10	PSYS	Analog	Output	Current-mode system power monitor output.
11	~PROCHOT	Control	Open Collector	Active-low open-drain PROCHOT event indicator.
12	SDA	I2C	Bi-Directional	I2C open-drain data I/O.
13	SCL	I2C	Input	I2C clock input.
14	CMPIN	Analog	Input	Independent comparator input.
15	CMPOUT	Analog	Open Collector	Independent comparator open-drain output.
16	COMP1	Analog	Input	Buck-boost compensation pin 1.
17	COMP2	Analog	Input	Buck-boost compensation pin 2.
18	CELL_BATPRESZ	Control	Input	Battery cell selection and battery-present input.
19	SRN	Power	Power In	Charge current sense negative input and battery voltage sense.
20	SRP	Power	Power In	Charge current sense positive input.
21	~BATDRV	Control	Output	P-channel BATFET gate driver output.
22	VSYS	Power	Power In	System voltage sensing for VSYS regulation.
23	SW2	Power	Power In	Boost-mode switching node.
24	HIDRV2	Control	Output	Boost high-side MOSFET gate driver.
25	BTST2	Power	Power In	Boost high-side bootstrap supply.
26	LODRV2	Control	Output	Boost low-side MOSFET gate driver.
27	PGND	Ground	Ground	Device power ground.
28	REGN	Power	Power Out	6V linear regulator output for gate drive.
29	LODRV1	Control	Output	Buck low-side MOSFET gate driver.
30	BTST1	Power	Power In	Buck high-side bootstrap supply.
31	HIDRV1	Control	Output	Buck high-side MOSFET gate driver.
32	SW1	Power	Power In	Buck-mode switching node.
33	EP	Ground	Ground	Exposed thermal pad; solder to board and connect to power ground planes.

Notes

No pin is repeated across groups.
The broad Pin Group values have been written into the terminal properties.
Pin Type and Pin Description remain datasheet-specific for accuracy.

Broad groups used
Notes