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BM83 Datasheet(PDF) 38 Page - Microchip Technology |
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BM83 Datasheet(HTML) 38 Page - Microchip Technology |
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38 / 74 page  Figure 5-2. Power Tree Diagram Power Switch BAT_IN ADAP_IN 5V Adapter SYS_PWR (4.5 to 5.5V) 3V LDO LDO31_VIN LDO31_VO 1.5V Buck Switching Regulator BK_VDD VDD_IO BK_O BK_LX SAR_VDD 1.2V LDO PMIC_IN CLDO_O RFLDO_O VDD_CORE VCC_RF (1.2V) (1.28V) (1.5V) 1.8V Buck Switching Regulator BK_VDD BK_O BK_LX VDDA/ VDDAO (1.8V) (3.2 to 4.2V) 5.2 Battery Voltage Monitoring The BM83 module has a 10-bit Successive Approximation Register (SAR) ADC with dedicated channels for battery voltage monitoring, adapter detection, multi-button detection and thermal protection. The warning level can be programmed by using the Config Tool. The ADC provides a granular resolution to enable the external MCU to take control over the charging process. The following figures show SK1 and SK2 channel behavior. Figure 5-3. SK1 Channel BM83 Power Management Unit © 2019 Microchip Technology Inc. Preliminary Datasheet DS70005402A-page 38 |
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