BQ78Z100DRZT
ActiveIMPEDANCE TRACK™ BATTERY FUEL (GAS) GAUGE FOR 1-SERIES TO 2-SERIES
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BQ78Z100DRZT
ActiveIMPEDANCE TRACK™ BATTERY FUEL (GAS) GAUGE FOR 1-SERIES TO 2-SERIES
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Technical Specifications
Parameters and characteristics for this part
| Specification | BQ78Z100DRZT |
|---|---|
| Battery Chemistry | Lithium Ion/Polymer |
| Fault Protection | Over Temperature, Over/Under Voltage, Short Circuit, Over Current |
| Function | Multi-Function Controller |
| Interface | HDQ, I2C |
| Mounting Type | Surface Mount |
| Number of Cells [Max] | 2 cells |
| Number of Cells [Min] | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 12-VFDFN Exposed Pad |
| Supplier Device Package | 12-SON (2.5x4) |
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 | $ 5.56 | |
| 10 | $ 4.99 | |||
| 25 | $ 4.72 | |||
| 100 | $ 4.09 | |||
| Digi-Reel® | 1 | $ 5.56 | ||
| 10 | $ 4.99 | |||
| 25 | $ 4.72 | |||
| 100 | $ 4.09 | |||
| Tape & Reel (TR) | 250 | $ 3.11 | ||
| 500 | $ 2.92 | |||
| 750 | $ 2.83 | |||
| 1250 | $ 2.72 | |||
| 1750 | $ 2.66 | |||
| 2500 | $ 2.60 | |||
| Texas Instruments | SMALL T&R | 1 | $ 4.20 | |
| 100 | $ 3.68 | |||
| 250 | $ 2.58 | |||
| 1000 | $ 2.08 | |||
Description
General part information
BQ78Z100 Series
The bq78z100 device provides a fully integrated pack-based solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, and authentication for 1-series to 2-series cell Li-Ion and Li-Polymer battery packs.
The bq78z100 gas gauge communicates via an I2C-compatible interface or single-wire HDQ 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-channel FET drive, and a SHA-1 Authentication transform responder into a complete, high-performance battery management solution.
The bq78z100 device provides an array of battery and system safety functions, including overcurrent in discharge, short circuit in charge, and short circuit in discharge protection for the battery, as well as FET protection for the N-channel FETs, internal AFE watchdog, and cell balancing. Through firmware, the devices can provide a larger array of features including protection against overvoltage, undervoltage, overtemperature, and more.
Documents
Technical documentation and resources
