Purpose
The RT1715 is a USB Type-C controller that complies with the latest USB Type-C and PD standards. This document explains the function and use of the RT1715 evaluation board (EVB), and provides information to enable operation, modification of the evaluation board and circuit to suit individual requirements.
Introduction
General Product Information
The RT1715 is a USB Type-C controller that complies with the latest USB Type-C and PD standards. The RT1715 integrates a complete Type-C Transceiver including the Rp and Rd resistors. It does the USB Type-C detection including attach and orientation. The RT1715 integrates the physical layer of the USB BMC power delivery protocol to allow up to 100W of power and role swap. The BMC PD block enables full support for alternative interfaces of the Type-C specification.
Product Feature
- Dual-Role PD Compatible
- Attach/Detach Detection as Host, Device or DRP
- Current Capability Definition and Detection
- Cable Recognition
- Alternate Mode Support
- Supporting VCONN with Programmable OCP
- Dead Battery Support
- Ultra-Low Power Mode for Attach Detection
- Simple I2C Interface with AP or EC
- BIST Mode Supported
- Supported PD 3.0 except Fast Role Swap Function
- e-fuse IP
- 9-Ball WL-CSP Package
Key Performance Summary Table
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Key Features
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Evaluation Board Number : PCB094_V2
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Default Input Voltage
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12V
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VBUS Output Current
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3A
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VBUS Voltage
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5V as RT1715 is source. 5V to 20V as RT1715 is sink.
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Default Marking & Package Type
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RT1715WSC, WL-CSP-9B 1.38x1.34 (BSC)
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Operation Mode
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DRP, Dead battery
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Bench Test Setup Conditions
Headers Description and Placement
Carefully inspect all the components used in the EVB according to the following Bill of Materials table, and then make sure all the components are undamaged and correctly installed. If there is any missing or damaged component, which may occur during transportation, please contact our distributors or e-mail us at evb_service@richtek.com.
Test Points
The EVB is provided with the test points and pin names listed in the table below.
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Test point/
Pin name
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Signal
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Comment (expected waveforms or voltage levels on test points)
|
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VBUS
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Voltage
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5V as RT1715 is souorce. 5V to 20V as the RT1715 is sink.
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CC1
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Configuration channel 1
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CC1 is used to establish and manage the Source-to-Sink connection.
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CC2
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Configuration channel 2
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CC2 is used to establish and manage the Source-to-Sink connection.
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GND
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Ground
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Ground.
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SinkVBUS
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Sink voltage
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As the RT1715 is sink, sink path will turn on. The RT1715 will get power from port partner for system applications.
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GPIO1 to GPIO 4
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General purpose I/O 1 to 4
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These four pins are used to control other functions in system for user.
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UTX, URX
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Signal for log
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These two pins are used to trace log of Micron.
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SDA, SCL
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I2C signal
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These two pins are I2C communication between the RT1715 and Micron.
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ICPDA, ICPCK
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Signal for programming
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These two pins are used to program Micron.
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Operations
The RT1715 supports DRP and Dead battery mode in this evaluation board. The followings explain the functions.
1. Insert 12V adapter and turn on the toggle switch. The 5V, Vadapter, and +3V3_DVDD LEDs wll light up. CC1 and CC2 will start DRP toggling.
2. If the RT1715 is attached as source, ie CC is presented as Rp, source path will be on and output 5V at VBUS.
Pressing “PowerRoleSwap” button will execute power role swap. If sink side accepts, source path will be off, the RT1715 will swap to sink, sink path will be on, and there will be 5V at SinkVBUS.
After the RT1715 swaps to sink, pressing “SinkPDO” button will ask next PDO (PD_Object) from port partner.
3. If the RT1715 is attached as sink, ie CC is presented as Rd, sink path will be on and there will be 5V at SinkVBUS.
Pressing “SinkPDO” button will ask next PDO (PD_Object) from port partner.
Pressing “PowerRoleSwap” button will execute power role swap. If source side accepts, sink path will be off, the RT1715 will swap to source, source path will be on, and there will be 5V at VBUS.
4. If 12V adapter is not inserted, CC1 and CC2 will present Rd. If source is inserted into Type C receptacle, the whole EVB will be active. The sink path will be on and there will be 5V at SinkVBUS.
Pressing “SinkPDO” button will ask next PDO (PD_Object) from port partner.
Pressing “PowerRoleSwap” button will not execute power role swap because there is no adapter power.
5. Pressing “Reset” button will reset +3V3_DVDD. Micron and the RT1715 will be reseted.
Schematic, Bill of Materials & Board Layout
EVB Schematic Diagram
Bill of Materials
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Reference
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Qty
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Part Number
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Description
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Package
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Manufacturer
|
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C105
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1
|
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NC/470nF/50V
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|
|
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C132, C133
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2
|
TMK107BJ105KA-T
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1µF/25V/X5R
|
0603
|
TAIYO YUDEN
|
|
C205, C206, C4033, C4044, C4059
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5
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GRM188R71H104KA93D
|
100nF/50V/X7R
|
0603
|
muRata
|
|
C703
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1
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C2012X7R1H224K125AA
|
220nF/50V/X7R
|
0805
|
TDK
|
|
C704
|
1
|
UMK212B7105KG-T
|
1µF/25V/X7R
|
0805
|
TAIYO YUDEN
|
|
C4020
|
1
|
UMK212B7105KG-T
|
1µF/50V/X7R
|
0805
|
TAIYO YUDEN
|
|
C4038, C4061, C4062
|
3
|
|
10µF/50V/X7R
|
1210
|
muRata
|
|
C4042, C4043
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2
|
|
NC/10µF/50V/X7R
|
1210
|
muRata
|
|
C4045, C4060
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2
|
C2012X5R1C226KT0001
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22µ/X5R/16V
|
0805
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TDK
|
|
C4046, C4047
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2
|
GRM32E61E226KE15L
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22µF/25V/X5R
|
1210
|
muRata
|
|
C4048
|
1
|
35YXG220MEFC8X16
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220µF/35V
|
徑向
|
Rubycon
|
|
C4049
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1
|
|
NC/1nF/50V
|
0603
|
|
|
C4050, C4051, C4052, C4053
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4
|
C3216X5R1H106K160AB
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10µF/50V/X5R
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1206
|
TDK
|
|
C4056
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1
|
|
NC/4.7nF/50V
|
0603
|
|
|
C4057
|
1
|
0603B682K500CT
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6.8nF/50V/X7R
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0603
|
WALSIN
|
|
C4058
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1
|
|
NC/180pF/50V
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0603
|
|
|
C4063
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1
|
|
NC/4.7nF/50V
|
0603
|
|
|
C4064
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1
|
|
NC/1nF/50V
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0603
|
|
|
C4065, C4066
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2
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0603N100J500CT
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10pF/50V/NPO
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0603
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WALSIN
|
|
C4067, C4068
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2
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0603B471K500CT
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470pF/50V/X7R
|
0603
|
WALSIN
|
|
C4069, C4070
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2
|
0603B272K500CT
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2.7nF/50V/X7R
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0603
|
WALSIN
|
|
CN411
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1
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121U-3CST-09CR
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USB Type-C 3.1
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9.87x9.75mm
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JEM (建舜電子)
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CN601
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1
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POWER_JACK_B_TYPE-3PIN
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PWR_JACK_B_360B
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|
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D2, D3
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2
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MM5Z2V7
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MM5Z2V7
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SOD-523
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SECOS
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D7
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1
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BZG05C27
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BZG05C27
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SMA/DO-214AC
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Vishay
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D8
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1
|
|
NC
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|
|
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D11, D12, D13, D14
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4
|
SX34
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SX34
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SMA/DO-214AC
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PANJIT
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|
D17
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1
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AZ4520-01F
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AZ4520-01F
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1.6x1.0mm
|
Amazing
|
|
L403
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1
|
M10A1509MT-C
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15µH
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L-M104L
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Nichtek
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L404
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1
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NR8040T4R7N
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4.7µH
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L-8x8
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TAIYO YUDEN
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|
LED401, LED402, LED403, LED408
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4
|
LNL-191SUR
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LED_RED-0603
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LED-0603
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LighTop
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PMOS14
|
1
|
FDN352AP
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FDN352AP
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SOT-23-3/TO-236
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FAIRCHILD
|
|
Q28, Q29, Q30, Q31
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4
|
2N7002K
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2N7002K
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SOT-23
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PANJIT
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|
Q404, Q405, Q406
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3
|
DMG4435SSS
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DMG4435SSS
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SOIC-8
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DIODES
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|
R8, R9, R10
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3
|
RTT031001FTP
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1k
|
0603
|
RALEC
|
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R101, R102, R104
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3
|
WR06X22R0FTL
|
22
|
0603
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WALSIN
|
|
R103, R707, R4053, R4062, R4064, R4067, R4069, R4071, R4075, R4076, R4077, R4078, R4079, R4081, R4082, R4209, R4216, R4217, R4218, R4219
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20
|
WR06X000 PTL
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0
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0603
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WALSIN
|
|
R129, R147
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2
|
3520680RJT
|
680
|
2512
|
TE Connectivity
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|
R144, R708, R4070
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3
|
WR06X1004FTL
|
1M
|
0603
|
WALSIN
|
|
R145, R4048, R4058, R4068, R4074, R4080, R4196, R4210, R4212, R4213, R4214, R4215
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12
|
WR06X1002FTL
|
10k
|
0603
|
WALSIN
|
|
R204, R666, R668, R705
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4
|
WR06X1003FTL
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100k
|
0603
|
WALSIN
|
|
R654
|
1
|
WR06W1R00FTL
|
1
|
0603
|
WALSIN
|
|
R667
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1
|
WR06X2001FTL
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2k
|
0603
|
WALSIN
|
|
R4049
|
1
|
WR06X3002FTL
|
30k
|
0603
|
WALSIN
|
|
R4054
|
1
|
WR06X4022FTL
|
40.2k
|
0603
|
WALSIN
|
|
R4057
|
1
|
WR06X6204FTL
|
60.4k
|
0603
|
WALSIN
|
|
R4060
|
1
|
RTT031693FTP
|
169k
|
0603
|
RALEC
|
|
R4061
|
1
|
WR06X4702FTL
|
47k
|
0603
|
WALSIN
|
|
R4063
|
1
|
WR06X1202FTL
|
12k
|
0603
|
WALSIN
|
|
R4065
|
1
|
WR06X8201FTL
|
8.2k
|
0603
|
WALSIN
|
|
R4066, R4208
|
2
|
WR06X5101FTL
|
5.1k
|
0603
|
WALSIN
|
|
R4199
|
1
|
WR06X7502FTL
|
75k
|
0603
|
WALSIN
|
|
R4200
|
1
|
WR06X2402FTL
|
24k
|
0603
|
WALSIN
|
|
R4220
|
1
|
RTT035112FTP
|
51.1k
|
0603
|
RALEC
|
|
R4221
|
1
|
WR06X1602FTL
|
16k
|
0603
|
WALSIN
|
|
R4222
|
1
|
WR06X8452FTL
|
84.5k
|
0603
|
WALSIN
|
|
SW1, SW2, SW602
|
3
|
HTS6601H
|
Reset
|
TACT-BTN
|
High-Tronics
|
|
SW601
|
1
|
DS-41T1B1A1QN
|
SW-SPDT
|
27.69x8.13x5.08x2.54mm
|
YUAN CHIN
|
|
U01
|
1
|
RT1715WSC
|
USB Type-C PD Controller
|
WL-CSP-9L 1.38x1.34 (BSC)
|
Richtek
|
|
U2
|
1
|
HT85F2280
|
HT85F2280
|
LQFP7_48L
|
HOLTEK
|
|
U404
|
1
|
RT7272BGSP
|
DC-DC Converter
|
PSOP-8
|
Richtek
|
|
U405
|
1
|
RT2875BQGCP
|
Step-Down Converter
|
TSSOP-14
|
Richtek
|
|
U702
|
1
|
RT9068-50GFP
|
Linear Regulator
|
MSOP-8
|
Richtek
|
|
Y1
|
1
|
HC-49S
|
12MHz
|
HC-49S
|
AKER
|
|
ZD404, ZD405
|
2
|
BZT52B22
|
BZT52B22
|
SOD-123
|
VISHAY
|
PCB Layout
Top View (1st layer)
PCB Layout—Inner Side (2nd Layer)
PCB Layout—Inner Side (3rd Layer)
Bottom View (4th Layer)