Datasheet
Thumbus Bill of Materials, Component Placement, Schematic
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3 Thumbus Bill of Materials, Component Placement, Schematic
This chapter includes the schematic, component placement on the circuit board, and a listing of the bill of
materials for the Thumbus EVM.
3.1 Bill of Materials (BOM)
Qty Ref Des
(1)
Value Description
(2) (3) (4)
Size Part Number MFR
11 C1, C4, C5, 0.1uF Capacitor, Ceramic, 25-V, X7R, 10% 0603 C1608X7R1E104KT TDK
C6, C7, C8,
C9, C12,
C13, C14,
C15
1 C10 2200pF Capacitor, Ceramic, 50-V, C0G, 10% 0603 C1608C0G1H222KT TDK
1 C11 150pF Capacitor, Ceramic, 50-V, C0G, 10% 0603 C1608C0G1H151KT TDK
1 C16 0.47uF Capacitor, Ceramic, 16V, X7R, 10% 0603 C1608X7R1C474K TDK
2 C2, C3 22pF Capacitor, Ceramic, 50-V, C0G, 10% 0603 C1608C0G1H220KT TDK
2 D1, D2 GL05T-GS08 Diode, TVS diode, Low Capacitance SOT23 GL05T-GS08 General
Semi
1 D3 Green Diode, LED, Green, 20-mA, 0.9-mcd 0.068 x 0.049 LN1371G Panasonic
1 J1 USB A Connector, USB A, Plug, 4pin 0.500 X 0.740 48037-1000
inch
1 J5 USB mini-AB Connector, USB, Mini AB, 5-pins 0.354 X 0.307 56579-0519
Inches
1 Q1 Si2335DS MOSFET,P-ch, -12 V, 4 A, 51 milliohm SOT23 Si2335DS Vishay
1 Q2 MMBT2222A TRANSISTOR, NPN, SOT23 MMBT2222A Fairchild
HIGH-PERFORMANCE, 500mA
6 R1, R2, R8, 100K Resistor, Chip, 1/16-W, 5% 0603 Std Std
R11, R12,
R13
1 R10 61.9K Resistor, Chip, 1/16-W, 1% 0603 Std Std
1 R14 1.5K Resistor, Chip, 1/16-W, 5% 0603 Std Std
2 R15, R17 33 Resistor, Chip, 1/16-W, 5% 0603 Std Std
1 R16 15K Resistor, Chip, 1/16-W, 5% 0603 Std Std
2 R20, R21 100 Resistor, Chip, 1/16-W, 5% 0603 Std Std
1 R22 604 Resistor, Chip, 1/16-W, 5% 0603 Std Std
3 R3, R4, R6 1.00M Resistor, Chip, 1/16-W, 1% 0603 Std Std
1 R5 10 Resistor, Chip, 1/16-W, 5% 0603 Std Std
3 R7, R18, 10.0K Resistor, Chip, 1/16-W, 5% 0603 Std Std
R19
1 R9 113K Resistor, Chip, 1/16-W, 1% 0603 Std Std
1 U1 SN74LVC1G126DCK IC, Single Bus Buffer Gate With 3-State DCK SN74LVC1G126DCK TI
Output, with positive enable
1 U2 BQ8015 IC, Advanced Gas Gauge DBT38 bq8015DBT TI
1 U3 TUSB3210PM IC, USB, General Purpose, Device Controller 0.480 x 0.480"" TUSB3210PM TI
2 U4, U5 SN74LVC1G125 IC, Single Bus Buffer Gate With 3-State DCK SN74LVC1G125DCK TI
Output, with negative enable
1 U6 TPS71533DCK IC, Regulator, LDO, Micropower, 3uA @ SOP-5 (DCK) TPS71533DCK TI
50mA. Vin 0 - 24V
1 Y1 12 MHz Crystal, High performance, SMT 6235 CS10-12.000MABJ- Citizen
UT,
orCS10-12.000MABL-
UT
1 Cable USB OTG MiniA to MiniB, 2.6ft, black 2.6ft 688060031 Molex
(1)
Reference designators marked with an asterik (*) cannot be substituted. All other components can be substituted with equivalent
manufacturers components.
(2)
These assemblies are ESD sensitive, ESD precautions should be observed.
(3)
These assemblies must be clean and free from flux and all contaminants. Use of no clean flux is not acceptable.
(4)
These assemblies must comply with workmanship standards IPC-A-610 Class 2.
4
Thumbus2300 SLUU399A–April 2010–Revised March 2011
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