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Product InformationFeatures
View All Features in Datasheet Description
The Texas Instruments bq27350 is a battery fuel gauge with secure authentication support for single cell Li-Ion battery packs. Designed for battery pack integration, the device requires little host microcontroller firmware support for implementation. The system host processor communicates with the bq27350 over an I2C interface to obtain remaining battery capacity, system run-time predictions, and other critical battery information. The bq27350 uses the patented Impedance Track algorithm for its fuel gauging. The gauge provides information such as state-of-charge (%), run-time to empty (min.), charge time to full (min.), battery voltage (V), and pack temperature (°C). The bq27350 also features both integrated and external support for secure battery pack authentication, using the SHA-1/HMAC authentication algorithm. |
| Price | Packaging | CAD Design Tools | Samples | ||||||
| Device | Status | Temp (oC) | Price | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Footprints | Samples |
| BQ27350PW | NRND | -40 to 85 | 2.00 | 1ku | TSSOP (PW) | 20 | View | 70 | TUBE | Not Available | ||
| BQ27350PWG4 | NRND | -40 to 85 | 2.00 | 1ku | TSSOP (PW) | 20 | View | 70 | TUBE | Not Available | ||
| BQ27350PWR | NRND | -40 to 85 | 1.80 | 1ku | TSSOP (PW) | 20 | View | 2000 | LARGE T&R | Not Available | ||
| BQ27350PWRG4 | NRND | -40 to 85 | 1.80 | 1ku | TSSOP (PW) | 20 | View | 2000 | LARGE T&R | Not Available | ||
* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.
| Reported Distributor Inventory as of 12:12 PM GMT, 22 Nov 2009 | |||
| Region | Company | In Stock | Purchase |
| TI Lead Time*: 20 WeeksBQ27350PW | |||
| Worldwide | Mouser Electronics | 28 | |
| TI Lead Time*: 20 WeeksBQ27350PWG4 | |||
| Worldwide | Mouser Electronics | 110 | |
| TI Lead Time*: 20 WeeksBQ27350PWR | |||
| Asia | WPI | >1k | |
| Worldwide | Mouser Electronics | 651 | |
| TI Lead Time*: 20 WeeksBQ27350PWRG4 | |||
| None Reported View Distributors | |||
** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.
| Product Content | DPPM / MTBF / FIT Rate | ||||
| Device | Eco Plan* | Lead / Ball Finish | MSL Rating / Peak Reflow | Details | Details |
| BQ27350PW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| BQ27350PWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| BQ27350PWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| BQ27350PWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.
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Most useful technical documents for BQ27350 
View Application Notes for Battery Fuel Gauges
| Name | Part # | Company | Tool / Software Type |
| BQ27350EVM Single Cell Impedance TrackT Technology | BQ27350EVM | Texas Instruments | Development Boards/EVMs |
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