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BQ27350PWTI-BBN/a25avaiSingle Cell Li-Ion Battery Manager with Impedance Track Fuel Gauge Technology 20-TSSOP -40 to 85


BQ27350PW ,Single Cell Li-Ion Battery Manager with Impedance Track Fuel Gauge Technology 20-TSSOP -40 to 85maximum ratings may cause permanent damage to the device. These are stress ratingsonly, and functio ..
BQ27500DRZR ,System-Side Impedance Track? Fuel Gauge 12-SON -40 to 85FEATURES 1.2 APPLICATIONS• Battery Fuel Gauge for 1-Series Li-Ion• SmartphonesApplications• PDAs• R ..
BQ27500DRZR-V120 ,System-Side Impedance Track? Fuel Gauge 12-SON -40 to 85.2.2 DISSIPATION RATINGST ≤ 40°C DERATING FACTORAPACKAGE RθJAPOWER RATING T > 40°CA(1)12-pin DRZ 48 ..
BQ27500DRZR-V120 ,System-Side Impedance Track? Fuel Gauge 12-SON -40 to 85FEATURES 1.2 APPLICATIONS• Battery Fuel Gauge for 1-Series Li-Ion• SmartphonesApplications• PDAs• R ..
BQ27500YZGR-V130 ,System-Side Impedance Track? Fuel Gauge 12-DSBGA -40 to 85FEATURES 1.2 APPLICATIONS1234• Battery Fuel Gauge for 1-Series Li-Ion• Smart PhonesApplications• PD ..
BQ27510DRZR ,System Side Impedance Track? Fuel Gauge with Integrated LDO 12-SON -40 to 85FEATURES APPLICATIONS• Smartphones23• Battery Fuel Gauge for 1-Series Li-IonApplications • PDAs• Re ..
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 ..
BUT12 ,NPN Silicon Transistor
BUT12 ,NPN Silicon Transistor


BQ27350PW
Single Cell Li-Ion Battery Manager with Impedance Track Fuel Gauge Technology 20-TSSOP -40 to 85
LDO
*Optional Thermistor
bq27350
Impedance Track™
SHA-1/HMAC
Authentication and
Manufacturing
Data Storage
bq26100
SHA-1/HMAC
Authentication
(optional)
bq27350
www.ti.com
SLUS754B–MARCH 2007–REVISED DECEMBER 2009
Single Cell Li-Ion/Li-Polymer Battery Manager
With Impedance Track Fuel Gauge Technology
Checkfor Samples: bq27350 INTRODUCTION Smartphones1.1 FEATURES • PDAs
12• Comprehensive Battery Fuel Gauge for Single • Digital CamerasCell and 1-Series Li-Ion/Li-Polymer
Applications • Handheld Terminals Secure Battery Authentication Using
SHA-1/HMAC Encryption 1.3 DESCRIPTION• Calculates and Reports
The Texas Instruments’ bq27350isa battery fuel– Remaining Battery Capacity gauge with secure authentication support for single– Battery Voltage and Temperature cell Li-Ion/Li-Polymer battery packs. Designed for– Charge and Discharge Current battery pack integration, the device requires little host– Four Time-to-Empty Predictions microcontroller firmware support for implementation.• Battery Fuel Gauge Based on Patented The system host processor communicates with theImpedance Track™ Technology bq27350 over anI2C interfaceto obtain remaining– Models the Battery Discharge Curve for battery capacity, system run-time predictions, andAccurate Time-to-Empty Predictions other critical battery information.– Automatically Adjusts for Battery Aging,
Battery Self Discharge, and
The bq27350 uses the patented Impedance Track™
Temperature/Rate Inefficiencies
algorithm for its fuel gauging. The gauge provides Low Value Sense Resistor (10mΩor Less) information such as state-of-charge (%), run-timeto
empty (min.), charge time to full (min.), battery• 96-Bytes Non-Volatile Scratch Pad Data
Memory
voltage (V), and pack temperature (°C).I2C Communications Interfaceto the Host The bq27350 also features both integrated and• 20-Pin TSSOP Package external support for secure battery pack
authentication, using the SHA-1/HMAC authentication1.2 APPLICATIONS algorithm. POS Terminals
TYPICAL IMPLEMENTATION
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