BQ27541-V200_17 Datasheet, PDF (37/46 Pages) Texas Instruments – Single Cell Li-Ion Battery Fuel Gauge for Battery Pack Integration

Not Recommended for New Designs
bq27541-V200
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SLUSA11B – FEBRUARY 2010 – REVISED SEPTEMBER 2013
REVISION HISTORY
Text highlighted in red denotes important changes.
Changes from Original (February 2010) to Revision A
Page
• Added: Available in I²C Mode only to the I_(HIB) description ................................................................................................... 3
• Changed the Regulator output voltage, REG25 values, MIN From: 2.42, NOM From: 2.52, MAX From 2.57 .................... 4
• Changed the Max Value of t_(RSPS) From: 320 To: 950 .......................................................................................................... 6
• Changed text for the last paragraph of the GENERAL DESCRIPTION ............................................................................... 8
• Changed the High Byte name From: HDAIntEN To: HDQIntEN in Table 3 bit0 ................................................................ 11
• Changed SHUTDOWN default description From: Default is 0. To: Default is 1 which is controlled by Pack
Configuration Register. ....................................................................................................................................................... 11
• Added text to the SET_HIBERNATE section ..................................................................................................................... 12
• Changed text for SET_HDQINTEN: 0x0015 - From: HDQHostIntrTries has lapsed To: HDQHostIntrTries has lapsed
(default 3) ............................................................................................................................................................................ 13
• Changed IT ENABLE: 0X0021 text - From: active UpdateStatuslocation to 0x01To: UpdateStatus (BI) to 0x04 ............. 13
• Changed Table 4 description of bit FC and the definition from OVERTAKEN to: OCVTAKEN. ........................................ 14
• Changed text for the StateOfHealth( ) ................................................................................................................................ 16
• Added text to the BlockDataChecksum( ): 0x60 - Unsealed section and Sealed section "the 8-bit summation of the
BlockData() (0x40 to 0x5F) on a byte-by-byte basis" ......................................................................................................... 18
• Changed text for the BlockDataControl( ): 0x61 section .................................................................................................... 18
• Deleted the SERIAL NUMBER section ............................................................................................................................... 18
• Changed From: Default Value in the Intial MaxLoad, Lifetime Min Pack Voltage, Sleep current, Hibernate I, Min Res
Factor, and Authen Key3. ................................................................................................................................................... 20
• Changed offset value in the State of Health Load, Device Name, LT Update time, Max/Min Sim Rate, and Ra Max
Delta .................................................................................................................................................................................... 20
• Changed data type and max value of LT Flash Cnt, and CC Offset .................................................................................. 21
• Changed From: 10 To: 100 in Qmax Max Delta %, Max Value column ............................................................................. 21
• Changed Table 10 tilte From: Load Mode = 0 To: Load Mode = 1 .................................................................................... 24
• Changed text for the Reserve Cap-mAh and Reserve Cap-mWh sections ....................................................................... 24
• Changed text for the Update Status section ....................................................................................................................... 25
• Changed text for the Lifetime Data Logging Paramerers section ....................................................................................... 26
• Changed SHUTDOWN – bit 7 description From: Default is 0 (disabled) To: Default is 1 (enabled) ................................. 27
• Changed text for the SE_EN pin description for Table 13 .................................................................................................. 27
• Updated text in Figure 3 Power Mode Diagram - System Sleep section ........................................................................... 29
• Changed text for the FULLSLEEP MODE section ............................................................................................................. 30
• Added text to the HIBERNATE MODE section ................................................................................................................... 30
• Changed 80°C to 8°C in the third paragraph of Autocalibration section ............................................................................ 32
• Changed text for the KEY PROGRAMMING (DATA FLASH KEY) section ....................................................................... 32
• Changed text for the Temperature section ......................................................................................................................... 33
• Changed the REFERENCE SCHEMATIC illustration to add the optional HDQ pull up resistor ........................................ 36
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