Texas Instruments BQ20Z45DBTR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $8.53 | $8.53 |
| 15+ | $8.26 | $123.90 |
| 25+ | $8.08 | $202.00 |
| 50+ | $7.63 | $381.50 |
| 100+ | $6.74 | $674.00 |
| N+ | $1.35 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | Impedance Track™ |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Function | Multi-Function Controller |
| Battery Chemistry | Lithium Ion/Polymer |
| Number of Cells | 2 ~ 4 |
| Fault Protection | Over Current, Over Temperature, Over/Under Voltage, Short Circuit |
| Interface | - |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 38-TFSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 38-TSSOP |
| ROHS |
The Texas Instruments BQ20Z45DBT is a sophisticated Multi-Function Controller designed for 2-4 cell Lithium Ion/Polymer battery packs. It integrates a fuel gauge with comprehensive fault protection, including over current, over temperature, over/under voltage, and short circuit. Operating from -40°C to 85°C, this controller in a 38-TFSOP package is ideal for portable electronics requiring accurate battery monitoring and robust safety features.
- Accurate Fuel Gauging: Provides precise state-of-charge and state-of-health information, extending the usable life of the battery and improving user experience.
- Comprehensive Protection: Integrates over current, over temperature, over/under voltage, and short circuit protection in a single IC, simplifying design and enhancing safety.
- Optimized for Li-Ion/Polymer: Specifically tailored for the charging and discharging characteristics of lithium-based chemistries.
- Wide Operating Range: The -40°C to 85°C range supports use in a variety of climates and applications.
Laptop Battery Packs
The BQ20Z45DBT is perfectly suited for 2-4 cell laptop batteries, providing accurate fuel gauging and comprehensive protection against overcurrent, short circuits, and thermal events.
Portable Medical Equipment
For battery-powered patient monitors or infusion pumps, this controller ensures reliable state-of-charge reporting and safe operation across a wide temperature range.
Handheld Barcode Scanners
In logistics and retail, these devices require accurate battery life prediction. The BQ20Z45DBT's fuel gauge functionality ensures minimal downtime.
Portable Power Tools
For compact cordless drills and screwdrivers using 2-4 cell packs, this IC provides the necessary protection and monitoring to handle high current draws and harsh job site conditions.
Consumer Electronics
Devices like high-end digital cameras and portable speakers benefit from the precise state-of-charge information and robust protection features, extending battery lifespan.
- Q: What is the function of the BQ20Z45DBT?
- A: It is a Multi-Function Controller for battery management, often used as a fuel gauge.
- Q: Which battery chemistries are supported?
- A: It supports Lithium Ion and Lithium Polymer batteries.
- Q: How many cells can it manage?
- A: It is designed for 2 to 4 series-connected cells.
- Q: What fault protection features are included?
- A: It provides protection against Over Current, Over Temperature, Over/Under Voltage, and Short Circuit conditions.
- Q: What is the operating temperature range?
- A: The operating temperature range is -40°C to 85°C (TA).
- Q: What package is available?
- A: It comes in a 38-TFSOP (0.173", 4.40mm Width) package.
- Q: What is the function of the BQ20Z45DBT?
- A: It is a Multi-Function Controller for battery management, often used as a fuel gauge.
- Q: Which battery chemistries are supported?
- A: It supports Lithium Ion and Lithium Polymer batteries.
- Q: How many cells can it manage?
- A: It is designed for 2 to 4 series-connected cells.
- Q: What fault protection features are included?
- A: It provides protection against Over Current, Over Temperature, Over/Under Voltage, and Short Circuit conditions.
- Q: What is the operating temperature range?
- A: The operating temperature range is -40°C to 85°C (TA).
- Q: What package is available?
- A: It comes in a 38-TFSOP (0.173", 4.40mm Width) package.

BQ20Z45DBTR.pdf