BQ2944L9DRBT Texas Instruments In Stock
BQ2944L9DRBT is a multi-cell Li-Ion battery gas gauge IC by Texas Instruments, featuring accurate state-of-charge measurement and cell balancing. Key specs: supports 2–4 cell battery packs, I2C interface, low 75µA operating current. From $0.73, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $0.7329(MOQ 3500)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Accurate state-of-charge (SOC) measurement for 2–4 cell Li-Ion battery packs
- Integrated cell balancing with passive FET control for uniform cell voltages
- Low 75µA operating current extends battery life in portable applications
- I2C serial interface for easy communication with host microcontrollers
- Programmable alarm thresholds for voltage, temperature, and charge level
Applications
The BQ2944L9DRBT is designed for portable consumer electronics such as laptops, tablets, and power banks requiring precise battery fuel gauging. It is also well-suited for industrial handheld devices, medical portable equipment, and any multi-cell Li-Ion battery-powered system that demands accurate remaining capacity reporting and cell balancing to extend battery pack life.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What type of battery chemistry does the BQ2944L9DRBT support?
The BQ2944L9DRBT is designed specifically for 2-cell to 4-cell series-connected Lithium-Ion (Li-Ion) and Lithium-Polymer battery packs. It provides accurate state-of-charge estimation and cell balancing tailored to the voltage and capacity characteristics of Li-Ion chemistry.
What communication interface does the BQ2944L9DRBT use?
The BQ2944L9DRBT uses an I2C serial interface for communication with a host microcontroller or system processor. This allows easy integration into embedded systems for reading battery state-of-charge, voltage, temperature, and setting alarm thresholds with minimal pin usage.
What is the typical operating current of the BQ2944L9DRBT?
The BQ2944L9DRBT features a low typical operating current of approximately 75µA, making it highly efficient for always-on battery monitoring in portable applications. This low quiescent current minimizes the self-discharge impact on the battery pack during normal operation.
What package does the BQ2944L9DRBT come in and is it RoHS compliant?
The BQ2944L9DRBT is available in a small VSON or QFN-style package suitable for compact PCB designs. Texas Instruments' BQ2944L9DRBT is RoHS compliant, supporting lead-free manufacturing processes for consumer and industrial electronics applications.
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Why Buy from FindMyChip
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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 3500+ | $0.7596 | $2658.49 |
| 5000+ | $0.7511 | $3755.60 |
| 12500+ | $0.7329 | $9161.50 |
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