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TPD4S014EVM Fiches technique(PDF) 2 Page - Texas Instruments

No de pièce TPD4S014EVM
Description  Over-voltage protection functionality
Download  5 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPD4S014EVM Fiches technique(HTML) 2 Page - Texas Instruments

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Bill of Materials (BOM)
www.ti.com
TPD4S014. The TOP section has a switch to toggle the polarity of the EN signal. There are labels
indicating the HI and LO positions on the switch. There are also test points that can be used to determine
the logic level of EN and ACK signals. The TOP section also has an LED that indicates a fault condition.
Please note that the LED lights up when the ACK signal is at logic LO. The TOP section is intended to
illustrate the functionality of the device without any additional test equipment.
The BOTTOM section consists of the SMB connectors. The connectors are connected to VBUS, VCC, D+,
D
– and ID pins. There is a test point for the ACK signal. The EN signal on the bottom section is tied to
ground i.e. the device is always enabled. The BOTTOM section is indented to be used to measure the
performance of the device such as ESD performance, Bandwidth and capacitance measurements, timing
characteristics etc.
Setup Procedure
1. Connect a 1.8V
– 3.3V power supply between the Vin and GNC connectors of the board. The fault
indication LED should light up when this power is applied.
2. Connect a USB cable to the Input connector (left) of board. Connect a variable power supply to the
VBUS line on the other end of the cable. Set the Voltage on the power supply to
<2V.
3. Connect another USB cable to the output connector (right) of the board. Connect a variable load to the
VBUS line on the other end of the cable. Set the load to
>25 ohms.
4. Slowly increase the Voltage on the input. The LED should turn OFF when the Voltage crossed 3V.
5. Continue to increase the voltage past 6V. When the voltage crosses 6V the LED should turn ON again
indicating a fault (condition).
1
Bill of Materials (BOM)
Count
RefDes
Value
Description
Size
Part Number
MFR
4
C2, C3, C4,
10uF
Capacitor, Ceramic, 10
µF, 6.3V, 10%
0805
Std
Std
C5
1
C1
10uF
Capacitor, Ceramic, 10
µF, 6.3V, 10%
0805
Std
Std
1
R1
1k
Ω
Resistor, Chip, 1 k
Ω, 1/8W, 5%
0603
Std
Std
1
R2
10k
Ω
Resistor, Chip, 10 k
Ω, 1/8W, 5%
0603
Std
Std
1
D1
LED DOME 645NM RD DFF AXL LO CUR
2.08mm x 2.21mm (axial, Flat
HLMP-Q150
Avago
lead)
1
S1
SPDT switch 12V , 100 mA, 70 m
Ω
8.85mm x 3mm
CSS-1210TB
Copal Electronics
ON-resistance
8
TP_C_ACK,
Test Point
Test Point 5011 Series
63 mil in diameter
5011
Keystone Electronics
TP_B_ACK,
TP_C_EN
2
U1, U2
IC, 10-pin DSQ package
2mm x 2mm
TPD4S014
Texas Instruments
8
SMA1 to
Sidemount SMB conn. For 0.062 board width
131-3701-801
Emerson Network Power
SMA8
Connectivity Solutions
2
J1,J2
--
USB Right Angle Recpt. Type A
292303-1
Tyco electronics
2
TPD4S014 EVM
SLVU471
– June 2011
Submit Documentation Feedback
Copyright
© 2011, Texas Instruments Incorporated


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