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UPD360 데이터시트(PDF) 183 Page - Microchip Technology

부품명 UPD360
상세설명  Highly Integrated Small Form Factor USB Type-C??Power Delivery 2.0 Port Controller
PDF  221 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

UPD360 데이터시트(HTML) 183 Page - Microchip Technology

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 2016-2017 Microchip Technology Inc.
DS00002084C-page 183
UPD360
13.1
Operation
13.1.1
POWER UP
When the device is powering up, both VBUS_PWRGD and 3V3_ALW_PWRGD are low. Under these conditions,
switches A and C are open, B and D are closed. The voltage going to the input of the core regulator is the higher of
3V3_ALW and 3V3_VBUS. The diodes prevent back drive.
FIGURE 13-2:
POWER SWITCH: POWERING UP
G
3V3_ALW
3V3_VBUS
VSW
A
B
C
D
3V3_VBUS _PWRGD=0
3V3_ALWAYS _PWRGD=0
SWITCH
CONTROL
3V3_ALWAYS _PWRGD
3V3_VBUS _PWRGD
VCORE _PWRGD
A
C
D
B
LDOs
VCORE_PWRGD
1.8V Analog
1.8V Core
EN
VMUX_PWRGD



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