Package and PCB layout note for the 28-WQFN
The BQ24773RUYT: Available in Tape & Reel (TR) or Cut Tape (CT) for different assembly volumes. Surface-mount only — no through-hole variant exists.
ROHS3 compliant.
Texas Instruments BQ24773RUYT, Multi-Function Controller, I²C interface, Multi-Chemistry, 28-WFQFN Exposed Pad, -40°C to 85°C, ROHS3 Compliant, Active.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Interface | I²C |
| Operating temperature | -40°C~85°C(TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Function | Multi-Function Controller |
| Case | 28-WFQFN Exposed Pad |
| Battery chemistry | Multi-Chemistry |
The BQ24773RUYT: Available in Tape & Reel (TR) or Cut Tape (CT) for different assembly volumes. Surface-mount only — no through-hole variant exists.
ROHS3 compliant.
It is a Multi-Function Controller for battery charging, supporting Multi-Chemistry cells (Li-ion, Li-poly, etc.) and controlled via I²C. It handles charge regulation, not monitoring or gauging.
No direct pin-compatible replacement is listed. The BQ79612PAPRQ1 is an automotive-grade battery monitor with SPI/UART, not a charger controller — it is not a functional substitute.
Yes, the Multi-Chemistry rating covers Li-ion and Li-polymer. The I²C interface lets you set the charge voltage and current per the cell specification.