データシートサーチシステム |
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MC13883 データシート(PDF) 8 Page - Freescale Semiconductor, Inc |
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MC13883 データシート(HTML) 8 Page - Freescale Semiconductor, Inc |
8 / 64 page Power Architecture MC13883 Technical Data, Rev. 3 8 Freescale Semiconductor Figure 2. Power Architecture Block Diagram 4.2 Charging This section details the charging functionality. Charge current comes into VBUS from a USB source or charger and is routed to the battery. Power is also routed to the phone circuitry. This can be accomplished in different manners as described below. If it is desired that the phone circuitry be guaranteed to be powered during charge, the “dual path” technique is probably desirable, as power separately reaches the battery and the phone so that the phone functions even though the battery may be very deeply discharged. Component count can be reduced with a single-path charge architecture, but at the cost of reduced or delayed functionality when charging a battery that is severely discharged. Dual Path, Single Path and Serial Path charging is described below and shown in Figures 3, 4 and 5. MC13883 IC Power Block Diagram (dual path configuration) VUSB LDO 5V LDO/ Switch VBus Pulsing Timer Mini-B or Mini-AB Receptacle ID GND Battery Battery FET Back-to-Back FET's Charge Control, Voltage Regulator and Switching Logic D+ D- VBus Overvoltage Detect D+ / D- and ID Detection BP FET VBUS REG_5V_IN ID DM DP VUSB Seamless/ FET Switching Logic BP Voltage Regulator / Switching Logic ISENSE CHRGCTRL BATT_FET BP_FET BATTP BP CHRGMODE To A/D Convertor Input ICHRG To Phone Load Rs PWR_ON Turnon signal |
同様の部品番号 - MC13883 |
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同様の説明 - MC13883 |
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