Pin Function Grouping Assistance

flux

1:56

Thought for 2 sec

1/4 Inspect current BQ25730 terminal group properties

Thought for 2 sec

Read schematic.

Thought for 3 sec

2/4 Replace detailed pin groups with broader functional categories

Thought for 11 sec

Thought for 4 sec

3/4 Update the pin-group project document to match the broader categories

Thought for 19 sec

Thought for 4 sec

4/4 Verify all terminals still have one group each

Read 1 knowledge entry.

Thought for 7 sec

Read schematic.

Thought for 3 sec

4/4 tasks completed.

Thought for a moment

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

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.

flux

0:11

Thought for a moment

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

flux

1:27

Thought for 4 sec

1/3 Read current Pin Group values for all 33 terminals

Thought for 3 sec

Read schematic.

Thought for 3 sec

2/3 Set Section property equal to Pin Group for all terminals

Thought for 8 sec

Thought for 5 sec

3/3 Verify Section values match Pin Group values

Thought for 6 sec

Read schematic.

Thought for 5 sec

3/3 tasks completed.

Thought for a moment

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

Finished working

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BQ25730RSNR

BQ25730RSNR thumbnail
Charger IC Multi-Chemistry 32-QFN (4x4)
The BQ25730RSNR is a highly integrated synchronous buck battery charger and system power management IC developed by Texas Instruments for applications requiring efficient charging of multi-cell lithium-ion and lithium-polymer batteries. The device is optimized for USB Type-C, USB Power Delivery, industrial, and portable embedded systems where high charging efficiency, flexible power management, and compact implementation are required.
The charger integrates high-side and low-side MOSFET gate drivers along with advanced power path management features, enabling efficient battery charging while simultaneously powering the system load. The architecture supports NVDC power path operation, allowing stable system voltage regulation even when the battery is deeply discharged or absent.
The device supports a wide operating input voltage range and programmable charging parameters suitable for various battery chemistries and capacities. Integrated input current optimization and dynamic power management help maximize available adapter power while preventing overload conditions.
The BQ25730RSNR communicates with the host processor through an I²C interface, enabling software configuration, telemetry monitoring, and fault management. Internal ADC functionality provides real-time monitoring of charging voltage, current, temperature, and system operating conditions.
Its high integration level reduces external component count and PCB area, making it suitable for compact industrial and portable power applications.
Electrical Characteristics
Wide input voltage operating range compatible with USB PD adapters and industrial power sources.
Supports multi-cell lithium-ion and lithium-polymer battery charging configurations.
High-efficiency synchronous buck charging architecture.
Programmable charge current and charge voltage through digital control interface.
Integrated ADC for system telemetry and power monitoring.
Dynamic power management optimizes adapter utilization and system stability.
Low standby current operation for battery-powered systems.
Charging Features
Constant current and constant voltage charging modes.
Programmable input current limiting for USB and adapter compliance.
Battery preconditioning and charge termination functionality.
Support for fast charging operation with thermal regulation.
Power path management enables simultaneous battery charging and system operation.
Automatic recharge and battery maintenance functionality.
Protection Features
Input overvoltage protection.
Battery overvoltage and overcurrent protection.
Thermal regulation and thermal shutdown protection.
Short-circuit and fault condition protection.
Battery temperature monitoring support using external NTC thermistors.
Reverse current protection and adapter isolation.
Interface and Control
I²C serial communication interface for configuration and monitoring.
Programmable charging profiles and operating parameters.
Interrupt and status reporting capabilities.
Integrated telemetry reporting for voltage, current, and temperature measurements.
Autonomous operation capability with minimal host intervention.
Package Information
Package type is WQFN.
Compact thermally enhanced surface-mount package.
Optimized for automated PCB assembly and high-density layouts.
Applications
USB Type-C and USB Power Delivery systems.
Industrial portable electronics.
Embedded computing platforms.
Portable medical and instrumentation equipment.
Battery-powered industrial controllers.
Handheld terminals and data acquisition systems.
Portable consumer and commercial electronics.
#commonpartslibrary #integratedcircuit #powermanagement #batterycharger

Properties

BQ25730RSNR

Texas Instruments

Integrated Circuit

ti.com/lit/ds/symlink/bq25730.pdf

IC

32-QFN

parametric-v1

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