BQ20Z80DBTG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments BQ20Z80DBTG4 is a battery fuel gauge IC for Li-Ion and Li-Polymer packs with adjustable threshold protection and 3.3 V operation. Implements SMBus communication and state-of-charge reporting in a 38-pin TSSOP package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 38
- Lifecycle
- ACTIVE
- Datasheet
- BQ20Z80DBTG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of BQ20Z80DBTG4?
- Accurate state-of-charge fuel gauge for Li-Ion/Li-Polymer packs with adjustable overvoltage and overcurrent thresholds
- SMBus-compatible interface at 3.3 V for direct host communication in smart battery systems
- 38-pin TSSOP package enabling compact multi-cell battery management integration on space-constrained PCBs
What is BQ20Z80DBTG4 used for?
The BQ20Z80DBTG4 is used in portable electronics such as laptops, power tools, and medical devices that require precise battery state-of-charge monitoring and cell protection for Li-Ion or Li-Polymer packs. Its adjustable threshold protection and SMBus interface make it suitable for smart battery designs compliant with the SBS (Smart Battery Specification) standard, enabling reliable charge and run-time estimation.
What are the specifications of BQ20Z80DBTG4?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | BATTERY GAUGE |
| JESD-30 Code | R-PDSO-G38 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP38,.25,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 3V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Taiwan |
Where can I find the BQ20Z80DBTG4 datasheet?
BQ20Z80DBTG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for BQ20Z80DBTG4?
Compatible alternatives and drop-in replacements for BQ20Z80DBTG4:
Frequently Asked Questions
What communication interface does BQ20Z80DBTG4 use, and at which voltage level does it operate?
The BQ20Z80DBTG4 uses an SMBus (System Management Bus) interface operating at 3.3 V, enabling standard host communication for state-of-charge data, voltage, current, and temperature readings in smart battery pack designs with Li-Ion or Li-Polymer cells.
How does the adjustable threshold feature of BQ20Z80DBTG4 improve battery protection reliability?
The BQ20Z80DBTG4 provides user-configurable overvoltage, undervoltage, and overcurrent thresholds, allowing designers to tune protection limits to specific cell chemistry and capacity — typically set within ranges such as 4.2 V maximum cell voltage — reducing nuisance trips while ensuring robust fault protection across 1 or more Li-Ion cells.
In which portable power applications is BQ20Z80DBTG4 most commonly deployed?
BQ20Z80DBTG4 is deployed in laptop battery packs, power tool systems, and portable medical instruments requiring SBS-compliant fuel gauging. Its 38-pin TSSOP footprint and single-channel monitoring architecture suit compact multi-cell designs where accurate remaining capacity reporting in milliwatt-hours is critical.
What package does BQ20Z80DBTG4 come in, and how does the pin count affect routing complexity?
BQ20Z80DBTG4 is housed in a 38-pin TSSOP package with 0.65 mm pin pitch, providing access to cell voltage sense inputs, protection FET drive signals, SMBus pins, and thermistor inputs — all within a compact footprint that requires careful but manageable fine-pitch PCB routing on a 2-layer or 4-layer board.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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