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BQ76PL455ATPFCTQ1
Texas Instruments
IC BATT MFUNC 6-16CELL 80TQFP
9588 Pcs New Original In Stock
Battery Multi-Function Controller IC 80-TQFP (12x12)
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (467 Ratings)
BQ76PL455ATPFCTQ1
Product Overview
1412621
DiGi Electronics Part Number
BQ76PL455ATPFCTQ1-DGManufacturer
Texas Instruments
BQ76PL455ATPFCTQ1
Description
IC BATT MFUNC 6-16CELL 80TQFPInventory
9588 Pcs New Original In Stock
Battery Multi-Function Controller IC 80-TQFP (12x12)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
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Worldwide Delivery in 3-5 Business Days
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BQ76PL455ATPFCTQ1 Technical Specifications
Category
Power Management (PMIC), Battery Management
Packaging
-
Series
Functional Safety (FuSa)
Product Status
Obsolete
Function
Multi-Function Controller
Battery Chemistry
-
Number of Cells
6 ~ 16
Fault Protection
Over/Under Voltage
Interface
UART
Operating Temperature
-40°C ~ 105°C (TA)
Grade
Automotive
Qualification
AEC-Q100
Mounting Type
Surface Mount
Package / Case
80-TQFP
Supplier Device Package
80-TQFP (12x12)
Base Product Number
BQ76PL455
Datasheet & Documents
Manuals
BQ76PL455A-Q1 Safety Manual
Manufacturer Product Page
BQ76PL455ATPFCTQ1 Specifications
HTML Datasheet
BQ76PL455ATPFCTQ1-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
296-48288-2
296-48288-1
2156-BQ76PL455ATPFCTQ1TR
296-48288-6
BQ76PL455ATPFCTQ1-DG
Standard Package
250
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Nous recommandons vivement DiGi Electronics pour leur fiabilité et leur support impeccable.
de desembre 02, 2025
The shipping was prompt, and the quality of the products is first-class.
de desembre 02, 2025
I've had nothing but positive experiences with their after-sales support.
de desembre 02, 2025
I feel valued as a customer thanks to their attentive support.
de desembre 02, 2025
The swift delivery exceeded my expectations, and the packaging was impeccable.
de desembre 02, 2025
I am confident in recommending DiGi Electronics for their high standards.
de desembre 02, 2025
The combination of speed and quality is unmatched in the industry.
de desembre 02, 2025
Their environmentally responsible packaging reflects genuine concern for our planet.
de desembre 02, 2025
Reliable support and quick shipping have built our trust in DiGi Electronics.
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Frequently Asked Questions (FAQ)
Can the BQ76PL455ATPFCTQ1 be safely used in new automotive battery designs given its obsolete status, and what are the long-term supply chain risks?
While the BQ76PL455ATPFCTQ1 is labeled as obsolete, it remains available in new original stock (9,552 units in inventory), making it usable for short-run production or prototypes. However, for long-term automotive designs, relying on this part poses significant supply chain risks due to lack of manufacturer re-marketing and potential end-of-life (EOL) component unavailability. Designers should consider migration to active AEC-Q100 qualified alternatives like the BQ7965RTERQ1 for similar 6–16 cell monitoring, or secure extended buy agreements. Always verify last-time-buy (LTB) dates with TI and assess lifetime buy options to mitigate obsolescence-related redesigns.
How does the BQ76PL455ATPFCTQ1 handle overvoltage protection coordination in a 12-cell Li-ion pack, and what design trade-offs exist between accuracy and response time?
The BQ76PL455ATPFCTQ1 uses per-cell voltage monitoring with configurable thresholds to trigger overvoltage protection events in 12-cell packs. A key design trade-off involves balancing ADC measurement accuracy (1.5mV typical) against protection response latency—tighter thresholds improve safety but may increase false trips under transient load conditions. For robust integration, use external RC filtering on cell inputs and validate timing margins with the internal 400kHz I2C-compatible UART interface. Also, ensure fault interrupt signals are debounced in firmware to avoid spurious system shutdowns during noisy transients.
What are the critical layout and thermal considerations when integrating the BQ76PL455ATPFCTQ1 in a high-temperature automotive under-hood application?
In under-hood environments, the BQ76PL455ATPFCTQ1 must operate near its 105°C maximum ambient rating. To prevent thermal derating or drift in cell voltage readings, ensure adequate PCB copper pour for heatsinking the 80-TQFP package, especially on GND and supply planes. Avoid placing high-power traces nearby, and use thermal vias under the exposed pad if applicable. Maintain strict impedance control on UART lines and keep cell sense traces matched and shielded to reduce crosstalk—a critical reliability factor in high-noise 12V/48V systems.
Is the BQ76PL455ATPFCTQ1 pin- or function-compatible with the MAX17843 or LTC6813-1, and what would be required to replace it in an existing battery stack design?
The BQ76PL455ATPFCTQ1 is neither pin- nor protocol-compatible with the MAX17843 (Maxim) or LTC6813-1 (Analog Devices), despite supporting similar 6–16 cell monitoring. Replacing it requires significant redesign: the TI device uses a UART interface, while the others use SPI and isoSPI, respectively. Additionally, cell input structures and fault reporting mechanisms differ. Migration would involve changes to the MCU communication firmware, level-shifting circuits, and PCB layout. A drop-in replacement is not feasible; thorough validation of diagnostics and functional safety (FuSa) compliance is required when switching to competitive devices.
What reliability risks arise from MSL3 sensitivity in the BQ76PL455ATPFCTQ1 during reflow assembly, and how can they be mitigated in high-volume production?
With an MSL3 rating (168-hour floor life), the BQ76PL455ATPFCTQ1 is susceptible to moisture absorption, which can lead to 'popcorning' during reflow. In high-volume production, this risk increases if components sit at humid ambient conditions before assembly. Mitigate by storing devices in dry cabinets (<10% RH), using humidity indicator cards, and strictly tracking exposure time after bag opening. Bake at 125°C for 24 hours if exposure exceeds limits. Implement SPI communication integrity checks post-reflow to detect latent defects affecting BMS data accuracy.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
BQ76PL455ATPFCTQ1 CAD Models
Texas Instruments BQ76PL455ATPFCTQ1 PCB symbols & footprints
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