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BQ27441DRZR-G1A
Texas Instruments
IC BATT FUEL GAUGE LI-ION 12SON
35429 Pcs New Original In Stock
Battery Battery Monitor IC Lithium Ion 12-SON (2.5x4)
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5.0 / 5.0
- (372 Ratings)
BQ27441DRZR-G1A
Product Overview
1274366
DiGi Electronics Part Number
BQ27441DRZR-G1A-DGManufacturer
Texas Instruments
BQ27441DRZR-G1A
Description
IC BATT FUEL GAUGE LI-ION 12SONInventory
35429 Pcs New Original In Stock
Battery Battery Monitor IC Lithium Ion 12-SON (2.5x4)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
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365 - Day Quality Guarantee - Every part fully backed.
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BQ27441DRZR-G1A Technical Specifications
Category
Power Management (PMIC), Battery Management
Packaging
Cut Tape (CT) & Digi-Reel®
Series
Impedance Track™
Product Status
Active
Function
Battery Monitor
Battery Chemistry
Lithium Ion
Number of Cells
1
Fault Protection
-
Interface
I2C
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
12-VFDFN Exposed Pad
Supplier Device Package
12-SON (2.5x4)
Base Product Number
BQ27441
Datasheet & Documents
Manufacturer Product Page
BQ27441DRZR-G1A Specifications
HTML Datasheet
BQ27441DRZR-G1A-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
2 (1 Year)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
296-39941-2
296-39941-1
-296-39941-1-DG
BQ27441DRZR-G1A-DG
296-39941-6
Standard Package
3,000
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
Le support après-vente m'a aidé à résoudre rapidement mes problèmes, très professionnel.
de desembre 02, 2025
I always find their pricing to be fair and transparent.
de desembre 02, 2025
Their after-sales service exceeded our expectations, with attentive support and proactive follow-up.
de desembre 02, 2025
I’m always satisfied with the value I get from their products.
de desembre 02, 2025
I appreciate how detailed the logistics tracking is with DiGi Electronics, giving real-time updates on my shipments.
de desembre 02, 2025
Their team provides excellent guidance, ensuring I make the right choices.
de desembre 02, 2025
Fast, efficient, and professional—just what I needed as a first-time buyer.
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Frequently Asked Questions (FAQ)
How does the BQ27441DRZR-G1A handle battery aging and capacity fade over time in real-world applications, and what design considerations are needed to maintain accurate state-of-charge reporting?
The BQ27441DRZR-G1A uses Texas Instruments’ Impedance Track™ algorithm to dynamically adjust for battery aging by tracking changes in cell impedance and capacity fade during charge/discharge cycles. To maintain accuracy, designers must ensure proper initial battery profiling using TI’s evaluation software and calibration tools, and avoid operating the cell outside its recommended voltage and temperature ranges, as extreme conditions accelerate aging and degrade algorithm performance. Regular full charge/discharge cycles (not necessarily deep discharges) help the gauge relearn capacity, but frequent deep cycling should be avoided to preserve cell health.
Can the BQ27441DRZR-G1A be used as a drop-in replacement for the MAX17055 in a single-cell Li-ion design, and what firmware or configuration changes are required?
While both the BQ27441DRZR-G1A and MAX17055 are single-cell Li-ion fuel gauges with I2C interfaces, they are not direct drop-in replacements due to differences in internal algorithms, register maps, and configuration requirements. The BQ27441DRZR-G1A requires custom battery characterization data (loaded via TI’s BQStudio) for optimal accuracy, whereas the MAX17055 uses a preloaded model-based approach. Migration requires updating the host MCU firmware to accommodate different I2C command structures and recalibrating the fuel gauge with actual battery parameters. Additionally, the BQ27441DRZR-G1A’s 12-SON package has different thermal and layout considerations than the MAX17055’s TDFN, so PCB redesign may be necessary.
What are the key reliability risks when using the BQ27441DRZR-G1A in high-vibration or thermally cycling environments, and how can PCB layout mitigate them?
The BQ27441DRZR-G1A’s 12-SON (2.5x4 mm) package with an exposed pad is sensitive to mechanical stress and thermal fatigue in high-vibration or thermally cycled applications. Poor solder joint integrity on the exposed pad can lead to intermittent connections or early failure. To mitigate risk, use a robust solder stencil design with adequate via-in-pad or thermal vias under the exposed pad to improve heat dissipation and mechanical stability. Follow TI’s recommended land pattern and ensure conformal coating does not trap moisture under the device. Additionally, avoid placing the IC near board edges or high-stress flex points, and consider underfill in mission-critical applications.
How does the BQ27441DRZR-G1A perform in low-power designs where the system spends extended time in sleep mode, and what quiescent current trade-offs should be considered?
The BQ27441DRZR-G1A is optimized for low-power operation with a typical shutdown current of 0.5 µA and a normal operating current around 50 µA, making it suitable for battery-powered IoT and portable devices. However, during long sleep periods, even this low current can contribute to cumulative battery drain. Designers should leverage the gauge’s SLEEP mode, triggered automatically when system current falls below a programmable threshold, to reduce average power consumption. Be aware that entering SLEEP mode reduces update frequency of state-of-charge data, so wake-up synchronization with the host MCU is critical to avoid reporting lag. Balancing update rate and power draw requires tuning the LOAD configuration parameter based on application duty cycle.
What integration challenges arise when connecting the BQ27441DRZR-G1A to a host microcontroller over I2C in noisy industrial environments, and how can signal integrity be preserved?
In electrically noisy environments, the BQ27441DRZR-G1A’s I2C interface can suffer from communication errors due to ground bounce, EMI, or long trace lengths. To ensure reliable operation, keep I2C traces short and away from high-current or switching signals, use pull-up resistors (typically 4.7 kΩ) close to the gauge, and consider series termination resistors (10–100 Ω) on SDA/SCL lines to dampen reflections. Implement error-checking in firmware (e.g., CRC validation if supported, or retry mechanisms) and avoid operating near the -40°C to 85°C limits where timing margins shrink. For harsh environments, isolate the I2C bus using a digital isolator like the ISO1540, especially if the host MCU and battery are on separate ground planes.
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.
BQ27441DRZR-G1A CAD Models
Texas Instruments BQ27441DRZR-G1A PCB symbols & footprints
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