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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SAMA5D2 датащи(PDF) 13 Page - ATMEL Corporation |
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SAMA5D2 датащи(HTML) 13 Page - ATMEL Corporation |
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13 / 74 page  SAMA5D2 Xplained Ultra [USER GUIDE] Atmel-44028C-ATARM-SAMA5D2-Xplained-Ultra-User Guide_13-Oct-16 13 Figure 5-6. Battery Powering Scheme Charger Input Interrupts In order to ease input supply detection and eliminate the size and cost of external detection circuitry, the charger has the ability to generate interrupts based upon the status of the input supply. This function is capable of generating an interrupt when the input is connected, disconnected, or both, when the charger state machine transitions. Charge Status Indicator The charger provides a charge-status indicator output, nSTAT. nSTAT is an open-drain output which sinks current when the charger is in an active-charging state, and is high-Z otherwise. nSTAT features an internal 8 mA current limit, and is capable of directly driving a LED (D1). Precision Voltage Detector The LBI input connects to one input of a precision voltage comparator, which can be used to monitor a system voltage such as the battery voltage. An external resistive-divider network can be used to set voltage monitoring thresholds. The output of the comparator is present at the nLBO open-drain output and connected to the led red D1. Table 5-3. PIOs Used to Control the Battery Charger PIO Function PA12 CHGLEV: Charge Current Selection Input PB13 nIRQ: Open-Drain Interrupt Output. nIRQ is asserted any time an unmasked fault condition exists or a charger interrupt occurs. PC8 nLBO: Low Battery Indicator Output. nLBO is asserted low whenever the voltage at LBI is lower than1.2V; it is high- Z otherwise. nPBSTAT VBAT VBAT VSYS_5V VSYS_5V VSYS_5V VDD_3V3 PMIC_CHGLEV_PA12 [7] PMIC_IRQ_PB13 [7] PMIC_TWD0_PD21 [8] PMIC_TWCK0_PD22 [8] NRST [9,10,12,14,15] PMIC_LBO/EXP_PC8 [8,15] C19 4.7uF R17 100R 1% R30 0R J3 1X3Pin 1 2 3 R26 DNP(8.2K 1%) R16 100R 1% R27 2.43K 1% R44 100R 1% C7 DNP(1nF) R20 100R 1% C166 47nF J4 DNP(Header 1X2 2.00MM) 1 2 C164 10uF C163 10uF C167 100nF D1 RED R41 DNP(0R) C176 10uF U2 ACT8945AQJ405-T CHGIN 33 ACIN 21 LBI 20 ISET 23 REFBP 1 CHGLEV 22 nRSTO 11 nIRQ 12 nPBSTAT 13 nLBO 19 SDA 27 SCL 26 VSEL 25 VSYS1 31 VSYS2 32 VP1 39 VP2 35 VP3 16 INL 6 NC1 40 nSTAT 28 BAT1 29 BAT2 30 TH 24 SW1 38 OUT1 2 SW2 36 OUT2 34 SW3 15 OUT3 17 |
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