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BQ27510DRZT Datasheet(PDF) 10 Page - Texas Instruments |
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BQ27510DRZT Datasheet(HTML) 10 Page - Texas Instruments |
10 / 36 page bq27510 SLUS816A – MARCH 2008 – REVISED JUNE 2008.......................................................................................................................................................... www.ti.com DF_CHECKSUM: 0x0004 Instructs the fuel gauge to compute the checksum of the data flash memory. The checksum value is written and returned to addresses 0x00/0x01 (UNSEALED mode only). The checksum will not be calculated in SEALED mode; however, the checksum value can still be read. RESET_DATA: 0x0005 Instructs the fuel gauge to return the reset data to addresses 0x00/0x01, with the low byte (0x00) being the number of full resets and the high byte (0x01) the number of partial resets. PREV_MACWRITE: 0x0007 Instructs the fuel gauge to return the previous command written to addresses 0x00/0x01. CHEM_ID: 0x0008 Instructs the fuel gauge to return the chemical identifier for the Impedance Track™ configuration to addresses 0x00/0x01. BOARD_OFFSET: 0x0009 Instructs the fuel gauge to compute the coulomb counter offset with internal short and then without internal short applied across the SR inputs. The difference between the two measurements is the board offset. After a delay of approximately 32 seconds, this offset value is returned to addresses 0x00/0x01 and written to data flash. The CONROL STATUS [BCA] is also set. The user must prevent any charge or discharge current from flowing during the process. This function is only available when the fuel gauge is UNSEALED. When SEALED, this command only reads back the board-offset value stored in data flash. CC_INT_OFFSET: 0x000A Control data of 0x000a instructs the fuel gauge to compute the coulomb counter offset with internal short applied across the SR inputs. The offset value is returned to addresses 0x00/0x01, after a delay of approximately 16 seconds. This function is only available when the fuel gauge is UNSEALED. When SEALED, this command only reads back the CC_INT_OFFSET value stored in data flash. WRITE_OFFSET: 0x000B Control data of 0x000b causes the fuel gauge to write the coulomb counter offset to data flash. SET_HIBERNATE: 0x0011 Instructs the fuel gauge to force the CONTROL_STATUS [HIBERNATE] bit to 1. This allows the gauge to enter the HIBERNATE power mode after the transition to SLEEP power state is detected. The [HIBERNATE] bit is automatically cleared upon exiting from HIBERNATE mode. CLEAR_HIBERNATE: 0x0012 Instructs the fuel gauge to force the CONTROL_STATUS [HIBERNATE] bit to 0. This prevents the gauge from entering the HIBERNATE power mode after the transition to SLEEP power state is detected. It can also be used to force the gauge out of HIBERNATE mode. SEALED: 0x0020 Instructs the fuel gauge to transition from UNSEALED state to SEALED state. The fuel gauge should always be set to SEALED state for use in end equipment. IT_ENABLE: 0x0021 This command forces the fuel gauge to begin the Impedance Track™ algorithm, sets the active UpdateStatus n location to 0x01 and causes the [VOK] and [QEN] flags to be set in the CONTROL_STATUS register. [VOK] is cleared if the voltages are not suitable for a Qmax update. Once set, [QEN] cannot be cleared. This command is only available when the fuel gauge is UNSEALED. 10 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): bq27510 |
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