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BQ25713 Datasheet(PDF) 83 Page - Texas Instruments |
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BQ25713 Datasheet(HTML) 83 Page - Texas Instruments |
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83 / 111 page  8.6.22 VSYS_MIN Register (I2C address = 0D/0Ch) [reset value based on CELL_BATPRESZ pin setting] To set the minimum system voltage, write a 16-bit VSYS_MIN register command (REG0x0D/0C()) using the data format listed in Figure 8-37, Table 8-50 , and Table 8-51 . The charger provides minimum system voltage range from 1.0V to 23.0V, with 100-mV step resolution. Any write below 1.0V or above 23.0V is ignored. Upon POR, the VSYS_MIN register is 3.6 V for 1 S, 6.6V for 2 S and 9.2 V for 3 S, and 12.3 V for 4 S, and 15.4 V for 5S. Writing VSYS_MIN to 0 will set it to the default value based on CELL_BATPRESZ pin. Figure 8-37. VSYS_MIN Register (I2C address = 0D/0Ch) [reset value based on CELL_BATPRESZ pin setting] 7 6 5 4 3 2 1 0 VSYS_MIN, bit 7 VSYS_MIN, bit 6 VSYS_MIN, bit 5 VSYS_MIN, bit 4 VSYS_MIN, bit 3 VSYS_MIN, bit 2 VSYS_MIN, bit 1 VSYS_MIN, bit 0 R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 Reserved R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 8-50. VSYS_MIN Register (I2C address = 0Dh) Field Descriptions BIT FIELD TYPE RESET DESCRIPTION 7 Min System Voltage, bit 7 R/W 0b 0 = Adds 0 mV of system voltage. 1 = Adds 12800 mV of system voltage. 6 Min System Voltage, bit 6 R/W 0b 0 = Adds 0 mV of system voltage. 1 = Adds 6400mV of system voltage. 5 Min System Voltage, bit 5 R/W 0b 0 = Adds 0 mV of system voltage. 1 = Adds 3200 mV of system voltage. 4 Min System Voltage, bit 4 R/W 0b 0 = Adds 0 mV of system voltage. 1 = Adds 1600 mV of system voltage. 3 Min System Voltage, bit 3 R/W 0b 0 = Adds 0 mV of system voltage. 1 = Adds 800 mV of system voltage. 2 Min System Voltage, bit 2 R/W 0b 0 = Adds 0 mV of system voltage. 1 = Adds 400 mV of system voltage. 1 Min System Voltage, bit 1 R/W 0b 0 = Adds 0 mV of system voltage. 1 = Adds 200 mV of system voltage. 0 Min System Voltage, bit 0 R/W 0b 0 = Adds 0 mV of system voltage. 1 = Adds 100 mV of system voltage. Table 8-51. VSYS_MIN Register (I2C address = 0Ch) Field Descriptions BIT FIELD TYPE RESET DESCRIPTION 7-0 Reserved R/W 00000000 b Not used. Value Ignored. www.ti.com BQ25730 SLUSE65A – FEBRUARY 2021 – REVISED JANUARY 2024 Copyright © 2024 Texas Instruments Incorporated Submit Document Feedback 83 Product Folder Links: BQ25730 |
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