Texas Instruments Test System for BQ27000 BQ27200 Based Circuit Boards BQ27X00-TESTER BQ27X00-TESTER Scheda Tecnica
Codici prodotto
BQ27X00-TESTER
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FEATURES
APPLICATIONS
DESCRIPTION
SLUS556D – SEPTEMBER 2004 – REVISED MARCH 2006
SINGLE CELL Li-Ion AND Li-Pol BATTERY GAS GAUGE IC FOR PORTABLE
APPLICATIONS (bqJUNIOR)
•
PDA
•
HDQ (bq27000) or I
2
C (bq27200)
Communication
•
Smart Phones
•
MP3 Players
•
Reports Accurate Time-to-Empty With
Measured Load and Historical Maximum and
Measured Load and Historical Maximum and
•
Digital Cameras
Standby Loads
•
Internet Appliances
•
Reports Temperature, Voltage, and Current
•
Handheld Devices
•
High Accuracy Charge and Discharge Current
Integration with Automatic Offset Calibration
Integration with Automatic Offset Calibration
•
Requires No User Calibration
The
bqJUNIOR™
series
are
highly
accurate
stand-alone single-cell Li-Ion and Li-Pol battery
•
Programmable Input/Output Port
capacity monitoring and reporting devices targeted at
•
Internal User EEPROM Configuration Memory
space-limited, portable applications. The IC monitors
•
Automatic Capacity Reduction With Age
a voltage drop across a small current sense resistor
connected in series with the battery to determine
connected in series with the battery to determine
•
Stable Oscillator Without External
charge
and
discharge
activity
of
the
battery.
Components
Compensations
for
battery
temperature,
•
Dynamic End-of-Discharge Detection Delay to
self-discharge, and discharge rate are applied to the
Allow Use in a High-Dynamic Load
capacity
measurments
to
provide
available
Environment
time-to-empty information across a wide range of
•
Automatic Sleep Mode When Communication
operating conditions. Battery capacity is automatically
recalibrated, or learned, in the course of a discharge
recalibrated, or learned, in the course of a discharge
Lines are Low
cycle from full to empty. Internal registers include
•
Available in a Small 3 mm x 4 mm QFN
current, capacity, time-to-empty, state-of-charge, cell
Package
temperature and voltage, status, and more.
•
Five Low-Power Operating Modes
The bqJUNIOR can operate directly from single-cell
– Active: < 90 µA
Li-Ion and Li-Pol batteries and communicates to the
– Sleep: < 2.5 µA
system over a HDQ one-wire or I
2
C serial interface.
– Ship: < 2 µA (bq27000 only)
– Hibernate: < 1.5 µA
– Data Retention: < 20 nA
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.
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
bqJUNIOR is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004–2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.