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Technical Specifications
Parameters and characteristics for this part
| Specification | BQ4050RSMT |
|---|---|
| Battery Chemistry | Lithium Ion/Polymer |
| Fault Protection | Over Temperature, Over/Under Voltage, Short Circuit, Over Current |
| Function | Multi-Function Controller |
| Interface | SMBus |
| Mounting Type | Surface Mount |
| Number of Cells [Max] | 4 |
| Number of Cells [Min] | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 32-VFQFN Exposed Pad |
| Supplier Device Package | 32-VQFN (4x4) |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 8.22 | |
| 10 | $ 5.64 | |||
| 25 | $ 4.98 | |||
| 100 | $ 4.23 | |||
| Digi-Reel® | 1 | $ 4.50 | ||
| 10 | $ 4.06 | |||
| 25 | $ 3.87 | |||
| 100 | $ 3.36 | |||
| Tape & Reel (TR) | 250 | $ 3.87 | ||
| 500 | $ 3.65 | |||
| 750 | $ 3.54 | |||
| 1250 | $ 3.42 | |||
| 1750 | $ 3.34 | |||
| 2500 | $ 3.33 | |||
| Texas Instruments | SMALL T&R | 1 | $ 5.96 | |
| 100 | $ 4.92 | |||
| 250 | $ 3.54 | |||
| 1000 | $ 2.66 | |||
Description
General part information
BQ4050 Series
The Texas Instruments bq4050 device, incorporating Compensated End-of-Discharge Voltage (CEDV) technology, is a highly integrated, accurate, 1-series to 4-series cell gas gauge and protection solution, enabling autonomous charger control and cell balancing.
The bq4050 device provides a fully integrated pack-based solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, and authentication for Li-Ion and Li-Polymer battery packs.
The bq4050 gas gauge communicates via an SMBus-compatible interface and combines an ultra-low power, high-speed TI bqBMP processor, high-accuracy analog measurement capabilities, integrated flash memory, an array of peripheral and communication ports, an N-CH FET drive, and a SHA-1 Authentication transform responder into a complete, high-performance battery management solution.
Documents
Technical documentation and resources
