STF202-22T1G ON Semiconductor, STF202-22T1G Datasheet - Page 4

• Manufacturer Part Number: STF202-22T1G
• Description: IC FILTER USB ESD PROTECT 6TSOP
• Manufacturer: ON Semiconductor
• Series: STF202-22r

Specifications of STF202-22T1G

• Resistance (ohms): 22
• Capacitance: 68pF
• Power (watts): 0.2W, 1/5W
• Package / Case: SC-74-6
• Resistance In Ohms: 22.0
• Power Dissipation Pd: 225mW
• Diode Case Style: TSOP
• No. Of Pins: 6
• Filter Terminals: SMD
• Mounting Type: Surface Mount
• Peak Reflow Compatible (260 C): Yes
• Leaded Process Compatible: Yes
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Tolerance: -
• Other names: STF202-22T1GOSTR

configurations for the USB port which are upstream and
downstream. If your port connects to the host either in a
direct way or through a hub, you are upstream (data flows
“up” to the host) and in the other hand, if you are the host or
your port provides access to the host then you are
downstream (data flows “down” from the host to the
device). In the case of the STF202 device, it provides
upstream termination. The Figure 7 represents the
termination for an upstream USB port.
resistors placed in the D+ and D− lines. These resistors
insure the proper termination to maintain the integrity of the
signal. The Pull up Resistor of 1.5 kW on either the D+ or D−
data lines is used to identify the equipment as either
full−speed or low−speed device.
Connection for Full−Speed
and Low−Speed Devices
Full−Speed devices − operates in 12 Mb/s
Low−Speed devices that work in 1.5 Mb/s
Full−Speed or Low−Speed devices which is achieved as
described below:
Full−Speed Devices
The terminal 1 is connected to the Voltage Supply Line
(V
input of the D+ line is connected in the terminal 3 which
outputs from the terminal 4. Finally, the input of the D− line
is connected in the terminal 2 which outputs from the
terminal 5. The Figure 8 shows the connections of the
STF202 device for “Full−Speed devices”.
As previously mentioned, there are two types of
The USB Line termination is reached through the series
As mentioned before, there are two kinds of port devices:
The STF202 device can be shaped to be used for either
The Pull up resistor (Rpu) is connected to the D+ Line.
BUS
) while the terminal 6 is connected to ground. The
Figure 7.
V
Rpu
C
C
CC
R
R
S
S
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4
Low−Speed Devices
terminal 1 is connected to the Voltage Supply Line (V
while the terminal 6 is connected to ground. The input of the
D− line is connected in the terminal 3 which outputs from the
terminal 4. Finally, the input of the D+ line is connected in
the terminal 2 which outputs from the terminal 5. The Figure
9 shows the connections of the STF202 device for
“Low−Speed devices”.
Peripheral
Peripheral
The Pull up resistor (Rpu) is connected to the D− Line. The
D−
D+
D+
D−
5 V
5 V
1
2
3
1
2
3
Figure 8.
Figure 9.
STF202
STF202
6
5
4
6
5
4
GND
D−
D+
D+
D−
GND
Controller
Controller
USB
USB
BUS
)