BQ78Z100DRZT Part Information
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 I2Ccompatible 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.
- Analog Front End with Two Independent ADCs u2013 Support for Simultaneous Current and Voltage Sampling
- Bus Communications Interface Options u2013 I2 C u2013 HDQ
- Compact 12-Terminal SON Package (DRZ)
- High-Accuracy Coulomb Counter with Input Offset Error < 1 u00b5V (Typical)
- High-Side FET Drive Allows Serial Bus Communication During Fault Conditions
- Programmable Protection Levels for: u2013 Overcurrent in Discharge u2013 Short-Circuit Current in Charge u2013 Short-Circuit Current in Discharge u2013 Overvoltage u2013 Undervoltage u2013 Overtemperature
- SHA-1 Hash Message Authentication Code (HMAC) Responder for Increased Battery Pack Security u2013 Split Key (2 u00d7 64) Stored in Secure Memory
- Supports a 1-mu03a9 to 3-mu03a9 Current Sense Resistor
|Battery Management Function||Authentication Fuel Gauge Protector|
|Battery Type||LiFePO4 Li-Ion Li-Pol|
|Supply Voltage Min||2.2V|
|Supply Voltage Max||26V|
|Battery IC Case Style||VSON|
|No. of Pins||12Pins|
|IC Interface Type||I2C|
|Operating Temperature Min||-40°C|
|Operating Temperature Max||85°C|
|RoHS Phthalates Compliant||Yes|
|MSL||MSL 2 - 1 year|
|SVHC||No SVHC (27-Jun-2018)|
Alternative Part Descriptions
- Impedance Track™ battery fuel (gas) gauge for 1-series to 2-series | Texas Instruments
Frequently Asked Questions
Where can I find additional details, specifications and documents for a BQ78Z100DRZT?
Additional datasheets, footprints and schematics for BQ78Z100DRZT are listed in our Part Details tab. You can also find the BQ78Z100DRZT image and similar parts on this details page.
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What category does BQ78Z100DRZT fall under?
The BQ78Z100DRZT is listed under Electronic & Electrical Components > Semiconductors - ICs > Battery Management.
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You can view similar parts to BQ78Z100DRZT when available in the Battery Management range under the specifications section at the bottom of the details page.
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Is the BQ78Z100DRZT RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Farnell.
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