BQ78Z100 Series
Impedance Track™ battery fuel (gas) gauge for 1-series to 2-series
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
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 |
Key Features
• High-Accuracy Coulomb Counter with Input OffsetError < 1 µV (Typical)High-Side FET Drive Allows Serial BusCommunication During Fault ConditionsAnalog Front End with Two Independent ADCsSupport for Simultaneous Current and VoltageSamplingBus Communications Interface OptionsI2CHDQSHA-1 Hash Message Authentication Code(HMAC) Responder for Increased Battery PackSecuritySplit Key (2 × 64) Stored in Secure MemoryProgrammable Protection Levels for:Overcurrent in DischargeShort-Circuit Current in ChargeShort-Circuit Current in DischargeOvervoltageUndervoltageOvertemperatureSupports a 1-mΩ to 3-mΩ Current Sense ResistorCompact 12-Terminal SON Package (DRZ)High-Accuracy Coulomb Counter with Input OffsetError < 1 µV (Typical)High-Side FET Drive Allows Serial BusCommunication During Fault ConditionsAnalog Front End with Two Independent ADCsSupport for Simultaneous Current and VoltageSamplingBus Communications Interface OptionsI2CHDQSHA-1 Hash Message Authentication Code(HMAC) Responder for Increased Battery PackSecuritySplit Key (2 × 64) Stored in Secure MemoryProgrammable Protection Levels for:Overcurrent in DischargeShort-Circuit Current in ChargeShort-Circuit Current in DischargeOvervoltageUndervoltageOvertemperatureSupports a 1-mΩ to 3-mΩ Current Sense ResistorCompact 12-Terminal SON Package (DRZ)
Description
AI
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.
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.