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BQ27541DRZR-V200 Datasheet(PDF) 1 Page - Texas Instruments |
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BQ27541DRZR-V200 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 43 page BatteryPack PACK- PROTECTION IC PACK+ SDA SCL TS bq27541-V200 LDO REG25 REGIN Vcc SRP SRN SE BAT Vss SHDQ bq27541-V200 www.ti.com SLUSA11 – FEBRUARY 2010 Single Cell Li-Ion Battery Fuel Gauge for Battery Pack Integration Check for Samples: bq27541-V200 1 FEATURES APPLICATIONS • Smartphones 23 • Battery Fuel Gauge for 1-Series Li-Ion Applications • PDAs • Digital Still and Video Cameras • Microcontroller Peripheral Provides: • Handheld Terminals – Accurate Battery Fuel Gauging • MP3 or Multimedia Players – Internal Temperature Sensor for System Temperature Reporting DESCRIPTION – SHA-1/HMAC Authentication The Texas Instruments bq27541 Li-Ion battery fuel – Lifetime Data Logging gauge is a microcontroller peripheral that provides – 96 Bytes of Non-Volatile Scratch Pad fuel gauging for single-cell Li-Ion battery packs. The FLASH device requires little system microcontroller firmware • Battery Fuel Gauging Based on Patented development for accurate battery fuel gauging. The bq27541 resides within the battery pack or on the Impedance Track™ Technology system’s main-board with an embedded battery – Models Battery Discharge Curve for (nonremovable). Accurate Time-To-Empty Predictions The bq27541 uses the patented Impedance Track™ – Automatically Adjusts for Battery Aging, algorithm for fuel gauging, and provides information Battery Self-Discharge, and such as remaining battery capacity (mAh), Temperature/Rate Inefficiencies state-of-charge (%), run-time to empty (min.), battery – Low-Value Sense Resistor (5m Ω to 20mΩ) voltage (mV), and temperature (°C). • HDQ and I2C™ Interface Formats for The bq27541 also features integrated support for Communication With Host System secure battery pack authentication, using the • Small 12-pin 2,5 mm × 4 mm SON Package SHA-1/HMAC authentication algorithm. TYPICAL APPLICATION 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. 2 Impedance Track is a trademark of Texas Instruments. 3 I2C is a trademark of Phillips Corporation. PRODUCTION DATA information is current as of publication date. Copyright © 2010, 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. |
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