BQ26231PWRG4 ,Cost-Efficient Coulomb Counter for Battery Capacity Monitoring In Embedded Portable Applications 8-TSSOP -20 to 70features 13 bytes of registers, which Internal Temperature Sensor Eliminates thecontain the capaci ..
BQ26500PW ,Complete Battery Fuel Gauge for One and Two Cell Li-Ion ApplicationsFEATURES APPLICATIONS Reports Accurate State-of-Charge in Li-Ion PDAsand Li-Pol Cells, No System ..
BQ26500PWR ,Complete Battery Fuel Gauge for One and Two Cell Li-Ion Applicationsmaximum ratings” may cause permanent damage to the device. These are stress ratings only,and functi ..
BQ26500PWRG4 ,Complete Battery Fuel Gauge for One and Two Cell Li-Ion Applications 8-TSSOP 0 to 70MAXIMUM RATINGS(1)over operating free-air temperature range unless otherwise notedbq26500 UNITSuppl ..
BQ26501PW ,OMAP Compatible Fuel Gauge for 1 & 2 Cell Li-IonFEATURES APPLICATIONS Reports Accurate State-of-Charge in Li-Ion PDAsand Li-Pol Cells, No System ..
BQ26501PWR ,OMAP Compatible Fuel Gauge for 1 & 2 Cell Li-Ion Not Recommended For New Designs SLUS586B − OCTOBER 2003 − REVISED MARCH 2004(a)t t(B) (BR) ..
BUT11 ,NPN Silicon TransistorApplicationsTO-22011.Base 2.Collector 3.EmitterNPN Silicon TransistorAbsolute Maximum Ratings ..
BUT11 ,NPN Silicon TransistorBUT11/11ABUT11/11AHigh Voltage Power Switching
BUT11 ,NPN Silicon TransistorApplicationsTO-22011.Base 2.Collector 3.EmitterNPN Silicon TransistorAbsolute Maximum Ratings ..
BUT11A ,NPN Silicon TransistorBUT11A®HIGH VOLTAGE FAST-SWITCHINGNPN POWER TRANSISTOR■ STMicroelectronics PREFERREDSALESTYPE■ NPN ..
BUT11AF ,NPN Silicon TransistorApplicationsTO-220F11.Base 2.Collector 3.EmitterNPN Silicon TransistorAbsolute Maximum Rating ..
BUT11TU ,NPN Silicon TransistorApplicationsTO-22011.Base 2.Collector 3.EmitterNPN Silicon TransistorAbsolute Maximum Ratings ..
BQ26231PW-BQ26231PWG4-BQ26231PWR-BQ26231PWRG4
Cost-Efficient Coulomb Counter for Battery Capacity Monitoring In Embedded Portable Applications
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SLUS491 – JULY 2001
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FEATURES Multifunction High-Accuracy Coulometric
Charge and Discharge Counter Ideal for Portable Applications With
Nonremovable Rechargeable Battery Pack Resolves Signals Less Than 12.5 μV Internal Offset Calibration Improves Accuracy 128 Bytes of General-Purpose RAM Internal Temperature Sensor Eliminates the
Need for an External Thermistor High-Accuracy Internal Timebase Eliminates
External Crystal Oscillator Low Power Consumption:
– Operating: < 80 μA
– Sleep: < 10 μA Single-Wire HDQ Serial Interface Packaging: 8-Lead TSSOP DESCRIPTIONThe bq26231 is a low-cost charge/discharge counter
peripheral in an 8-pin TSSOP . It works with an intelligent
host controller, providing state-of-charge information
for rechargeable Li-Ion, Li-Pol, or NiMH batteries. The
bq26231 measures the voltage drop across a low-value
series sense resistor between the negative terminal of
the battery and the battery pack ground contact. By
using the accumulated counts in the charge, discharge,
and self-discharge registers, an intelligent host
controller can determine battery state-of-charge
information. To improve accuracy, an offset count
register is available. The system host controller is
responsible for the register maintenance by resetting
the charge in/out and self-discharge registers as
needed.
The bq26231 features 13 bytes of registers, which
contain the capacity monitoring and status information.
The RBI input operates from an external power storage
source such as a capacitor or a series cell in the battery
pack, providing register nonvolatility for periods when
the battery is shorted to ground or when the battery
charge state is not sufficient to operate the bq26231.
During this mode, the register backup current is less
than 100 nA. Packaged in an 8-pin TSSOP, the
bq26231 is small enough to fit in the crevice between
two A-size cells or within the width of a prismatic cell.
AVAILABLE OPTIONSPlease 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.
Not Recommended for New Designs
