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
Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | BQ78Z100DRZT | BQ78Z100 Series |
|---|---|---|
| Battery Chemistry | Lithium Ion/Polymer | Lithium Ion/Polymer |
| Fault Protection | Over Temperature, Over/Under Voltage, Over Current, Short Circuit | Over Temperature, Over/Under Voltage, Over Current, Short Circuit |
| Function | Multi-Function Controller | Fuel Gauge, Multi-Function Controller |
| Interface | I2C, HDQ | I2C, HDQ |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Cells [Max] | 2 | 2 |
| Number of Cells [Min] | 1 | 1 |
| Operating Temperature [Max] | 85 °C | 85 °C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Package / Case | 12-VFDFN Exposed Pad | 12-VFDFN Exposed Pad |
| Supplied Contents | - | Board(s) |
| Supplier Device Package | 12-SON (2.5x4) | 12-SON (2.5x4) |
| Type | - | Power Management |
| Utilized IC / Part | - | BQ78Z100 |
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 | |||
BQ78Z100 Series
Impedance Track™ battery fuel (gas) gauge for 1-series to 2-series
| Part | Supplied Contents | Function | Type | Utilized IC / Part | Operating Temperature [Max] | Operating Temperature [Min] | Supplier Device Package | Mounting Type | Fault Protection | Package / Case | Number of Cells [Min] | Number of Cells [Max] | Interface | Battery Chemistry |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ78Z100EVM-532 | Board(s) | Fuel Gauge | Power Management | BQ78Z100 | ||||||||||
Texas Instruments BQ78Z100DRZT | Multi-Function Controller | 85 °C | -40 °C | 12-SON (2.5x4) | Surface Mount | Over Current, Over Temperature, Over/Under Voltage, Short Circuit | 12-VFDFN Exposed Pad | 1 | 2 | HDQ, I2C | Lithium Ion/Polymer |
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