BQ34Z100 Datasheet, PDF (1/50 Pages) Texas Instruments – Wide Range Fuel Gauge with Impedance Track™ Technology

bq34z100
www.ti.com
SLUSAU1 – MAY 2012
Wide Range Fuel Gauge with Impedance Track™ Technology
Check for Samples: bq34z100
FEATURES
1
•2 Supports Li-Ion and LiFePO4 Chemistries
• Capacity Estimation Using Patented
Impedance Track™ Technology for Batteries
from 3 V to 65 V
– Aging Compensation
– Self-Discharge Compensation
• Supports Battery Capacities Above 65 Ahr
• Supports Charge and Discharge Currents
Above 32 A
• 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)
– Normal Operation: < 140 µA Average
– Sleep: < 64 µA Average
– Full Sleep: < 19 µA Average
• • Package: 14-Pin TSSOP
APPLICATIONS
• • Light Electric Vehicles
• • Power Tools
• • Medical Instrumentation
• • Uninterruptable Power Supplies (UPS)
• • Mobile Radios
DESCRIPTION
The Texas Instruments bq34z100 is a fuel gauge solution that works independently of battery series-cell
configurations, and supports a wide range of Li-Ion and LiFePO4 battery chemistries. Batteries from 3 V to 65 V
can be supported through an external voltage translation circuit that can be controlled automatically to reduce
system power consumption.
The bq34z100 device provides several interface options, including an I²C slave, an HDQ slave, one or four direct
LEDs, and an Alert output pin. Additionally, the bq34z100 provides support for an external port expander for
more than four LEDs.
ORDERING INFORMATION
T_A
–40°C to 85°C
PART NUMBER
bq34z100PW or
bq34z100PWR
PACKAGE
(TSSOP)
14-Pin
TUBE
PW
TAPE AND REEL
PWR
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Impedance Track is a trademark of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated