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AXP209 Datasheet(PDF) 13 Page - List of Unclassifed Manufacturers |
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AXP209 Datasheet(HTML) 13 Page - List of Unclassifed Manufacturers |
13 / 45 page ![]() AXP209 Enhanced single Cell Li-Battery and Power System Management IC 13 LDO24IN PI Input to LDO2 and LDO4 14 VIN3 PI DCDC3 input source 15 LX3 IO Inductor Pin for DCDC3 16 PGND3 G NMOS GND for DCDC3 17 DCDC3 I Feed back to DCDC3 18 GPIO1 IO GPIO 1 REG93H [2: 0] ADC Input 19 GPIO0 IO GPIO 0 REG90H [2: 0] Low noise LDO / Switch ADC Input 20 EXTEN O External Power Enable 21 APS PI Internal Power Input 22 AGND G Analog Ground 34 BIAS IO External 200Kohm 1% resistor 24 VREF O Internal reference voltage 25 PWROK O Power Good Indication OutPut 26 VINT PO Internal logic power, 2.5V 27 LDO1SET I It set the LDO1 default voltage. 28 LDO1 O LDO1 output,for Host RTC block 29 DC3SET I It set the DCDC3 default voltage 30 BACKUP IO Backup battery pin 31 VBUS PI USB VBUS input 32,33 ACIN PI Adapter input 34,35 IPSOUT IO Main Battery 36 CHGLED O charger status indication 37 TS I Battery Temperature sensor input or an external ADC input 38,39 BAT PO System power source 40 LDO3IN O LDO3 input source 41 LDO3 I Output Pin of LDO3 42 BATSENSE I Current sense port1 43 CHSENSE O Current sense port2 44 VIN1 PI DCDC1 input source 45 LX1 IO Inductor Pin for DCDC1 46 PGND1 G NMOS Ground for DCDC1 47 PWRON I Power On-Off key input,Internal 100k pull high to APS 48 IRQ / IO IRQ output or wakeup WAKEUP 49 EP G Exposed Pad, need to connect to system ground Confidential Page 13/45 |
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