Texas Instruments bq34z100-G1 Wide Range Fuel Gauge
Texas Instruments bq34z100-G1 Wide Range Fuel Gauge is an Impedance Track™ fuel gauge for Li-Ion, PbA, NiMH, and NiCd batteries. It works independently of battery series-cell configurations. Batteries from 3V to 65V can be easily supported through an external voltage translation circuit. The translation circuit is controlled automatically to reduce system power consumption. The bq34z100-G1 provides several interface options. These include an I2C slave, an HDQ slave, one or four direct LEDs, and an ALERT output pin. Additionally, the bq34z100-G1 provides support for an external port expander for more than four LEDs.
Features
- Supports Li-Ion, LiFePO4, PbA, NiMH, and NiCd chemistries
- Capacity estimation using patented impedance track technology for batteries from 3V to 65V
- Aging compensation
- Self-discharge compensation
- Supports battery capacities up to 29Ahr with standard configuration options
- Supports charge and discharge currents up to 32A with standard configuration options
- External NTC thermistor support
- Supports two-wire I2C and HDQ single-wire communication interfaces with host system
- SHA-1/HMAC authentication
- One- or four-LED direct display control
- Five-LED and higher display through port expander
- Reduced power modes (Typical battery pack operating range conditions)
- <145µA Average normal operation
- <84µA Average sleep
- <30µA Average full sleep
- 14-Pin TSSOP Package
Applications
- Light electric vehicles
- Power tools
- Medical instrumentation
- Uninterruptible Power Supplies (UPS)
- Mobile radios
Evaluation Module
Texas Instruments bq34z100EVM Evaluation Module
Complete evaluation system for the bq34z100 wide range fuel gauge for lithium ion chemistries.
Videos
Functional Diagram
Publicado: 2015-11-12
| Actualizado: 2022-03-11