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BUT12 ,NPN Silicon Transistor
BUT12 ,NPN Silicon Transistor
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BUT12A ,NPN Silicon Transistor
BUT12A ,NPN Silicon Transistor
BQ27541DRZR-V200
Single Cell Li-Ion Battery Fuel Gauge for Battery Pack Integration
Battery Pack
PACK-
PROTECTION
PACK+
SCL
bq27541-V200LDO REG25REGIN
Vcc
SRP
SRN
BAT
Vss
bq27541-V200
www.ti.com SLUSA11B –FEBRUARY 2010–REVISED SEPTEMBER 2013
Single Cell Li-Ion Battery Fuel Gauge for Battery Pack Integration
Checkfor Samples: bq27541-V200
1FEATURES APPLICATIONS
23• Battery Fuel Gauge for 1-Series Li-Ion • Smartphones
Applications • PDAs Microcontroller Peripheral Provides: • Digital Still and Accurate Battery Fuel Gauging • Handheld Terminals Internal Temperature Sensor for System • MP3or Multimedia
Temperature Reporting SHA-1/HMAC Authentication DESCRIPTIONThe Texas Instruments
– Lifetime Data Logginggaugeisa microcontroller
– 96 Bytesof Non-Volatile Scratch Pad fuel gauging for single-cell
FLASH device requires little
• Battery Fuel Gauging Based on Patented development for accurate
Impedance Track™ Technology bq27541 resides within
system’s main-board
– Models Battery Discharge Curve for (nonremovable).
Accurate Time-To-Empty PredictionsThe bq27541 uses
– Automatically Adjusts for Battery Aging,algorithm for fuel gauging,
Battery Self-Discharge, and such as remaining
Temperature/Rate Inefficiencies charge (%), run-time
– Low-Value Sense Resistor (5mΩto 20mΩ) (mV), and temperature
HDQ andI2 C™ Interface Formats for The bq27541 also
Communication With Host System secure battery pack
• Small 12-pin 2.5 mm×4 mm SON Package 1/HMAC authentication algorithm.
TYPICAL APPLICATIONPleasebe aware thatan important notice concerning availability, standard warranty, and usein critical applicationsof
