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UPD360 데이터시트(PDF) 187 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) 187 Page - Microchip Technology

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 2016-2017 Microchip Technology Inc.
DS00002084C-page 187
UPD360
50us after FET C is opened, FET B is shorted. The two diodes ensure there is no back drive. The input to the core reg-
ulator will be at the higher voltage of VBUS - 0.7V or 3V3_ALW - 0.7V.
50us after FET B is shorted, FET D is opened. The core regulator input is now 3V3_ALW - 0.7V.
FIGURE 13-9:
POWER SWITCH: VBUS FOLLOWED BY 3V3_ALW STEP THREE
FIGURE 13-10:
POWER SWITCH: VBUS FOLLOWED BY 3V3_ALW STEP FOUR
3V3_ALW
3V3_VBUS
VSW
A
B
C
D
3V3_VBUS_PWRGD=1
3V3_ALWAYS_PWRGD=1
Higher of
3V3_VBUS-0.7
or
3V3_ALW-0.7
LDOs
VCORE _PWRGD
1.8V Analog
1.8V Core
EN
VMUX_PWRGD
SWITCH
CONTROL
3V3_ALWAYS_PWRGD
3V3_VBUS_PWRGD
VCORE _PWRGD
A
C
D
B
3V3_ALW
3V3_VBUS
VSW
A
B
C
D
3V3_VBUS_PWRGD=1
3V3_ALWAYS_PWRGD=1
3V3_ALW-0.7
LDOs
VCORE_PWRGD
1.8V Analog
1.8V Core
EN
VMUX_PWRGD
SWITCH
CONTROL
3V3_ALWAYS_PWRGD
3V3_VBUS_PWRGD
VCORE_PWRGD
A
C
D
B



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