bq34z100 Gauge Datasheet

bq34z100 Datasheet PDF, Equivalent


Part Number

bq34z100

Description

Wide Range Fuel Gauge

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download bq34z100 Datasheet


bq34z100
Not Recommended for New Designs
bq34z100
www.ti.com
SLUSAU1B – MAY 2012 – REVISED DECEMBER 2012
Wide Range Fuel Gauge with Impedance Track™ Technology
Check for Samples: bq34z100
FEATURES
1
23 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
• Uninterruptible 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
TA
–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
I2C is a trademark of NXP B.V. Corporation.
3
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

bq34z100
bq34z100
Not Recommended for New Designs
SLUSAU1B – MAY 2012 – REVISED DECEMBER 2012
THERMAL INFORMATION
THERMAL METRIC(1)
θJA, High K
θJC(top)
θJB
ψJT
ψJB
θJC(bottom)
Junction-to-ambient thermal resistance(2)
Junction-to-case(top) thermal resistance(3)
Junction-to-board thermal resistance(4)
Junction-to-top characterization parameter(5)
Junction-to-board characterization parameter(6)
Junction-to-case(bottom) thermal resistance(7)
bq34z100
TSSOP
14 Pins
103.8
31.9
46.6
2.0
45.9
N/A
www.ti.com
UNITS
°C/W
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
(2) The junction-to-ambient thermal resistance under natural convection is obtained in a simulation on a JEDEC-standard, high-K board, as
specified in JESD51-7, in an environment described in JESD51-2a.
(3) The junction-to-case (top) thermal resistance is obtained by simulating a cold plate test on the package top. No specific JEDEC-
standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.
(4) The junction-to-board thermal resistance is obtained by simulating in an environment with a ring cold plate fixture to control the PCB
temperature, as described in JESD51-8.
(5) The junction-to-top characterization parameter, ψJT, estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining θJA, using a procedure described in JESD51-2a (sections 6 and 7).
(6) The junction-to-board characterization parameter, ψJB, estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining θJA , using a procedure described in JESD51-2a (sections 6 and 7).
(7) The junction-to-case (bottom) thermal resistance is obtained by simulating a cold plate test on the exposed (power) pad. No specific
JEDEC standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.
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Copyright © 2012, Texas Instruments Incorporated


Features Not Recommended for New Designs bq34z10 0 www.ti.com SLUSAU1B – MAY 2012 REVISED DECEMBER 2012 Wide Range Fue l Gauge with Impedance Track™ Technol ogy Check for Samples: bq34z100 FEATUR ES 1 •23 Supports Li-Ion and LiFePO4 Chemistries • Capacity Estimation Usi ng Patented Impedance Track™ Technolo gy for Batteries from 3 V to 65 V – A ging Compensation – Self-Discharge Co mpensation • Supports Battery Capacit ies Above 65 Ahr • Supports Charge an d Discharge Currents Above 32 A • Ext ernal NTC Thermistor Support • Suppor ts Two-Wire I2C™ and HDQ Single-Wire Communication Interfaces with Host Syst em • SHA-1/HMAC Authentication • On e- or Four-LED Direct Display Control • Five-LED and Higher Display Through Port Expander • Reduced Power Modes (Typical Battery Pack Operating Range C onditions) – Normal Operation: < 140 µA Average – Sleep: < 64 µA Average – Full Sleep: < 19 µA Average • P ackage: 14-Pin TSSOP APPLICATIONS • Light Electric Vehicles • Power Tools • Medical Instrumentation • Uninte.
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