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BQ20Z70PWR-V160
Texas Instruments
IC GAS GAUGE FOR BQ29330 20TSSOP
16756 Pcs New Original In Stock
Battery Battery Monitor IC Lithium Ion/Polymer 20-TSSOP
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5.0 / 5.0
- (510 Ratings)
BQ20Z70PWR-V160
Product Overview
1231534
DiGi Electronics Part Number
BQ20Z70PWR-V160-DGManufacturer
Texas Instruments
BQ20Z70PWR-V160
Description
IC GAS GAUGE FOR BQ29330 20TSSOPInventory
16756 Pcs New Original In Stock
Battery Battery Monitor IC Lithium Ion/Polymer 20-TSSOP
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
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BQ20Z70PWR-V160 Technical Specifications
Category
Power Management (PMIC), Battery Management
Packaging
Tape & Reel (TR)
Series
Impedance Track™
Product Status
Active
Function
Battery Monitor
Battery Chemistry
Lithium Ion/Polymer
Number of Cells
2 ~ 4
Fault Protection
Over Current, Over Temperature, Over/Under Voltage, Short Circuit
Interface
SMBus
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package
20-TSSOP
Base Product Number
BQ20Z70
Datasheet & Documents
HTML Datasheet
BQ20Z70PWR-V160-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
BQ20Z70PWRV160
BQ20Z70PWR-V160G4
296-25919-6
296-25919-1
296-25919-2
BQ20Z70PWR-V160-DG
BQ20Z70PWR-V160G4-DG
Standard Package
2,000
Alternative Parts
View DetailsPART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
грудня 02, 2025
Livraison très efficace, j’ai toujours reçu mes commandes à temps. Service impeccable.
грудня 02, 2025
Ich bin sehr zufrieden mit der Verpackungssicherheit bei DiGi Electronics. Meine Bestellungen kommen immer gut geschützt an.
грудня 02, 2025
Durch das exakte Logistiktracking konnte ich meine Termine perfekt planen.
грудня 02, 2025
DiGi Electronicsは手頃な価格でとても満足しています。
грудня 02, 2025
Their customer-friendly policies make for a worry-free shopping experience.
грудня 02, 2025
Their products withstand rough handling and stay reliable over time, which speaks volumes about their quality standards.
грудня 02, 2025
The company's commitment to quality and customer satisfaction is truly commendable.
грудня 02, 2025
I always trust DiGi Electronics because of their unwavering product quality.
грудня 02, 2025
The after-sales service provided by DiGi Electronics is second to none.
грудня 02, 2025
They handle after-sales issues promptly, showing true professionalism.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when integrating the BQ20Z70PWR-V160 into a battery management system for 3-cell Li-ion packs, and how can they be mitigated?
Integrating the BQ20Z70PWR-V160 in a 3-cell Li-ion pack requires careful attention to voltage scaling and cell balancing dependencies. Since the BQ20Z70PWR-V160 relies on the BQ29330 for voltage protection, ensure the companion IC is properly configured to avoid overvoltage or undervoltage faults during fast charging or high-load discharge. A common design risk is improper SMBus pull-up resistor values—use 2.2kΩ to 4.7kΩ to maintain reliable communication without excessive current draw. Additionally, verify that the PCB layout includes Kelvin connections for current sense resistors to avoid inaccurate impedance track fuel gauging due to parasitic resistances. Thermal coupling of the BQ20Z70PWR-V160 to the battery pack improves temperature compensation accuracy, which is critical for state-of-charge estimation in wide-temperature applications.
How does the BQ20Z70PWR-V160 compare to the BQ20Z90 and MAX17058 in terms of fuel gauge accuracy and system integration complexity?
The BQ20Z70PWR-V160 offers Impedance Track™ technology, delivering higher fuel gauge accuracy over temperature and aging compared to the MAX17058’s basic Coulomb counting. Unlike the MAX17058, the BQ20Z70PWR-V160 doesn’t require full discharge calibration, making it suitable for applications where full cycles aren’t frequent. Compared to the BQ20Z90, the BQ20Z70PWR-V160 lacks SHA-1 authentication, increasing risk in unsecured supply chains but reducing setup complexity. The BQ20Z70PWR-V160 requires external protection via BQ29330, while the BQ20Z90 has integrated protection drivers, increasing component count but offering better fault response tuning. Choose the BQ20Z70PWR-V160 when you need a proven, moderately complex solution with strong field reliability in cost-sensitive 2-4 cell systems.
Can the BQ20Z70PWR-V160 be used as a direct replacement for the BQ20Z70PWR-V150, and what are the potential compatibility issues in existing designs?
Yes, the BQ20Z70PWR-V160 can directly replace the BQ20Z70PWR-V150 in most designs since both share the same pinout, firmware, and 20-TSSOP package. However, verify firmware version compatibility if reprogramming is required—some V150 units may use older calibration tables. Always ensure the host system’s SMBus bootloader supports the V160’s firmware revision to prevent communication timeouts during initialization. No PCB changes are needed, but confirm that the most recent gas gauge algorithm (e.g., Impedance Track v4.1) is compatible with your battery profile. Field reports show improved thermal compensation in the V160, so recalibrating at temperature extremes is recommended post-replacement.
What are the reliability concerns when operating the BQ20Z70PWR-V160 near its 85°C temperature limit in sealed outdoor battery enclosures?
Operating the BQ20Z70PWR-V160 near 85°C in sealed enclosures risks long-term reliability due to accelerated electromigration and potential thermal derating of internal circuitry. While the BQ20Z70PWR-V160 is rated for 85°C (TA), junction temperature can exceed this if self-heating or ambient conditions are underestimated. Use thermal vias under the exposed pad (if applicable) and maintain at least 2°C/W thermal resistance to ambient. Monitor package temperature during peak load and consider derating the maximum operating temperature to 75°C for 10+ year deployments. Combine with the BQ29330 overtemperature protection threshold set 5°C below the battery’s limit to avoid false trips caused by local hot spots near the IC.
What are the practical SMBus interface limitations of the BQ20Z70PWR-V160 in noisy industrial environments, and how can communication failures be prevented?
In noisy industrial environments, the BQ20Z70PWR-V160’s SMBus interface is susceptible to EMI-induced lockups, especially over long cable runs. The lack of differential signaling increases risk compared to I2C-isolated solutions. To prevent communication failures, use shielded twisted-pair cables with ground drain at one end only, limit bus length to under 30 cm on the PCB, and place 100nF bypass capacitors near the VDD pin. Implement software timeouts in the host µC to reset the SMBus line if the BQ20Z70PWR-V160 fails to respond within 50ms. Additionally, monitor the ALERT pin to detect faults early and initiate recovery routines. Avoid sharing the SMBus with high-current digital ICs to reduce ground bounce coupling into the BQ20Z70PWR-V160’s communication lines.
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.
BQ20Z70PWR-V160 CAD Models
Texas Instruments BQ20Z70PWR-V160 PCB symbols & footprints
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