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BQ25713 Datasheet(PDF) 47 Page - Texas Instruments |
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BQ25713 Datasheet(HTML) 47 Page - Texas Instruments |
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47 / 111 page  Table 8-8. ChargeOption0 Register (I2C address = 01h) Field Descriptions (continued) BIT FIELD TYPE RESET DESCRIPTION 2 EN_OOA R/W 1b Out-of-Audio Enable In both forward mode and OTG mode, switching frequency reduces with diminishing load, under extreme light load condition the switching frequency could be lower than 25 kHz which is already in audible frequency range. By configuring EN_OOA=1b, the minimum PFM burst frequency is clamped at around 25 kHz to avoid any audible noise. 0b: No limit of PFM burst frequency 1b: Set minimum PFM burst frequency to above 25 kHz to avoid audio noise <default at POR> 1 PWM_FREQ R/W 1b Switching Frequency Selection: Recommend 800 kHz with 2.2 µH, and 400 kHz with 4.7 µH. 0b: 800kHz 1b: 400 kHz<default at POR> 0 LOW_PTM_RIPPLE R/W 1b PTM mode input voltage and current ripple reduction 0b: Disable 1b: Enable <default at POR> Table 8-9. ChargeOption0 Register (I2C address = 00h) Field Descriptions BIT FIELD TYPE RESET DESCRIPTION 7 EN_CMP_LATCH R/W 0b The EN_CMP_LATCH bit, will latch the independent comparator output after it is triggered at low state. If enabled in PROCHOT profile REG0x38[6]=1 , STAT_COMP bit REG0x22[6] keep 1b after triggered until read by host and clear 0b: Independent comparator output will not latch when it is low<default at POR> 1b: Independent comparator output will latch when it is low, host can clear CMPOUT pin by toggling this EN_CMP_LATCH bit. 6 VSYS_UVP_ENZ R/W 0b To disable system under voltage protection. 0b: VSYS under voltage protection is enabled <default at POR> 1b: VSYS under voltage protection is disabled 5 EN_LEARN R/W 0b LEARN mode allows the battery to discharge and converter to shut off while the adapter is present . It calibrates the battery gas gauge over a complete discharge/charge cycle. When the host determines the battery voltage is below battery depletion threshold, the host switch the system back to adapter input by writing this bit back to 0b. 0b: Disable LEARN Mode <default at POR> 1b: Enable LEARN Mode 4 IADPT_GAIN R/W 0b IADPT Amplifier Ratio The ratio of voltage on IADPT and voltage across ACP and ACN. 0b: 20× <default at POR> 1b: 40× 3 IBAT_GAIN R/W 1b IBAT Amplifier Ratio The ratio of voltage on IBAT and voltage across SRP and SRN 0b: 8× 1b: 16× <default at POR> www.ti.com BQ25730 SLUSE65A – FEBRUARY 2021 – REVISED JANUARY 2024 Copyright © 2024 Texas Instruments Incorporated Submit Document Feedback 47 Product Folder Links: BQ25730 |
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