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Os motores de busca de Datasheet de Componentes eletrônicos |
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Os motores de busca de Datasheet de Componentes eletrônicos |
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BQ25708 Folha de dados(PDF) 33 Page - Texas Instruments |
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BQ25708 Folha de dados(HTML) 33 Page - Texas Instruments |
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33 / 77 page  33 bq25708 www.ti.com SLUSCU2 – NOVEMBER 2017 Product Folder Links: bq25708 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated 8.6.1.2 ChargeOption1 Register (SMBus address = 30h) [reset = 211h] Figure 14. ChargeOption1 Register (SMBus address = 30h) [reset = 211h] 15 14 13 12 11 10 9 8 EN_IBAT EN_PROCHOT_LPWR EN_PSYS RSNS_RAC RSNS_RSR PSYS_RATIO Reserved R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 CMP_REF CMP_POL CMP_DEG FORCE_ LATCHOFF Reserved EN_SHIP_ DCHG AUTO_ WAKEUP_EN R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 9. ChargeOption1 Register (SMBus address = 30h) Field Descriptions SMBus BIT FIELD TYPE RESET DESCRIPTION 15 EN_IBAT R/W 0b IBAT Enable Enable the IBAT output buffer. In low power mode (REG0x12[15] = 1), IBAT buffer is always disabled regardless of this bit value. 0b Turn off IBAT buffer to minimize Iq <default at POR> 1b: Turn on IBAT buffer 14-13 EN_PROCHOT _LPWR R/W 00b Enable PROCHOT during battery only low power mode With battery only, enable IDCHG or VSYS in PROCHOT with low power consumption. Do not enable this function with adapter present. Refer to PROCHOT During Low Power Mode for more details. 00b: Disable low power PROCHOT <default at POR> 01b: Enable IDCHG low power PROCHOT 10b: Enable VSYS low power PROCHOT 11b: Reserved 12 EN_PSYS R/W 0b PSYS Enable Enable PSYS sensing circuit and output buffer (whole PSYS circuit). In low power mode (REG0x12[15] = 1), PSYS sensing and buffer are always disabled regardless of this bit value. 0b: Turn off PSYS buffer to minimize Iq <default at POR> 1b: Turn on PSYS buffer 11 RSNS_RAC R/W 0b Input sense resistor RAC 0b: 10 mΩ <default at POR> 1b: 20 mΩ 10 RSNS_RSR R/W 0b Charge sense resistor RSR 0b: 10 mΩ <default at POR> 1b: 20 mΩ 9 PSYS_RATIO R/W 1b PSYS Gain Ratio of PSYS output current vs total input and battery power with 10-mΩ sense resistor. 0b: 0.25 µA/W 1b: 1 µA/W <default at POR> 8 Reserved R/W 0b Reserved Table 10. ChargeOption1 Register (SMBus address = 30h) Field Descriptions SMBus BIT FIELD TYPE RESET DESCRIPTION 7 CMP_REF R/W 0b Independent Comparator Internal Reference 0b: 2.3 V <default at POR> 1b: 1.2 V |
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