BQ34Z110 Datasheet, PDF (1/11 Pages) Texas Instruments – Wide Range Fuel Gauge with Impedance Track™ for Lead-Acid Batteries

bq34z110
www.ti.com
SLUSB55 – JUNE 2012
Wide Range Fuel Gauge with Impedance Track™ for Lead-Acid Batteries
Check for Samples: bq34z110
FEATURES
1
•23 Supports Lead-Acid Chemistries
• Capacity Estimation Using Patented
Impedance Track™ Technology for Batteries
from 4 V to 64 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 bq34z110 is a fuel gauge solution that works independently of battery series-cell
configurations, and supports Lead-Acid battery chemistries. Batteries from 4 V to 64 V can be supported through
an external voltage translation circuit that can be controlled automatically to reduce system power consumption.
The bq34z110 device provides several interface options, including an I²C™ slave, an HDQ slave, one or four
direct LEDs, and an Alert output pin. Additionally, the bq34z110 provides support for an external port expander
for more than four LEDs.
T_A
–40°C to 85°C
ORDERING INFORMATION
PART NUMBER
PACKAGE
(TSSOP)
TUBE
bq34z110PW or
bq34z110PWR
14-Pin
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
I²C is a trademark of NXP B.V Corporation.
3
PRODUCT PREVIEW information concerns products in the
formative or design phase of development. Characteristic data and
other specifications are design goals. Texas Instruments reserves
the right to change or discontinue these products without notice.
Copyright © 2012, Texas Instruments Incorporated