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UPD301B Datasheet(PDF) 8 Page - Microchip Technology

Part # UPD301B
Description  Stand-alone USB Type-C??Power Delivery 3.0 Controller
PDF  45 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

UPD301B Datasheet(HTML) 8 Page - Microchip Technology

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UPD301B/C
DS00003412A-page 8
2020 Microchip Technology Inc.
2.3.2
TWO-PORT, THREE-PORT, AND FOUR-PORT SOURCE-ONLY APPLICATIONS
(E.G., AUTOMOTIVE REAR SEAT CHARGING) (UPD301B ONLY)
Some applications, such as a automotive rear seat charging port, may need multiple USB Type-C™ power delivery
ports. These ports can be implemented by connecting a UPD301B and a UPD350 via the SPI interface, as shown in
Figure 2-2. The UPD301B will execute the stack for the UPD350. The two-port implementation supports dynamic power
allocation (e.g., go-to power min based on an external input).
FIGURE 2-2:
SYSTEM BLOCK DIAGRAM - TWO-PORT APPLICATION
Microchip
UPD301B
CC1
CC2
VBUS
60W Load 
Switch
DC In
Load Switch
DC‐DC 
Converter
VBUS
60W Load 
Switch
DC In
Load Switch
DC‐DC 
Converter
Microchip
UPD350
CC1
CC2
SPI
M
S
POWER
Control I/O
(GPIO, DAC, 
or I
2C)
Fault Indicator
Control I/O
(GPIO, DAC, 
or I
2C)
Fault Indicator
VBUS_DET
VBUS_DET
RESET
Optional
Optional



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