ISL54200IRUZ-T Intersil, ISL54200IRUZ-T Datasheet - Page 10

• Manufacturer Part Number: ISL54200IRUZ-T
• Description: IC USB SWITCH DUAL SPDT 10UTQFN
• Manufacturer: Intersil

Specifications of ISL54200IRUZ-T

• Function: USB Switch
• Circuit: 2 x SPDT
• On-state Resistance: 10 Ohm
• Voltage Supply Source: Single Supply
• Voltage - Supply, Single/dual (±): 2.7 V ~ 5.5 V
• Current - Supply: 20nA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-UTQFN (10-µTQFN)
• Rohs Compliant: YES
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ISL54200IRUZ-T

requirements for USB 2.0 full-speed signaling. See
Figure 11.
The maximum signal range for the HSx switches is from
-1.5V to V
exceed the V
than -1.5V.
The HSx switches are active (turned ON) whenever the
IN voltage is
operated with a 2.7V to 3.6V supply.
ISL54200 Operation
The discussion that follows will discuss using the
ISL54200 in the typical application shown in the
“Application Block Diagram” on page 9.
POWER
The power supply connected at the VDD (pin 1) provides
the DC bias voltage required by the ISL54200 part for
proper operation. The ISL54200 can be operated with a
VDD voltage in the range of 2.7V to 5.5V. When used in a
USB application, the VDD voltage should be kept in the
range of 3.0V to 5.5V to ensure you get the proper signal
levels for good signal quality.
A 0.01µF or 0.1µF decoupling capacitor should be
connected from the VDD pin to ground to filter out any
power supply noise from entering the part. The capacitor
should be located as close to the VDD pin as possible.
LOGIC CONTROL
The state of the ISL54200 device is determined by the
voltage at the IN pin (pin 2) and the EN pin (pin 10). IN
is only active when the EN pin is logic “1” (High). Refer to
the “Truth Table” on page 3.
The EN pin is internally pulled low through a 4MΩ resistor
to ground. For logic “0” (Low) it can be driven low or
allowed to Float. The IN pin must be driven low or high
and cannot be left floating.
Logic Control Voltage Levels:
EN = Logic “0” (Low) when V
EN = Logic “1” (High) when V
IN = Logic “0” (Low) when V
IN = Logic “1” (High) when V
DD
. The signal voltage should not be allowed to
DD
≥
1.4V and the EN logic voltage
voltage rail or go below ground by more
10
IN ≤
EN ≤
IN ≥
EN ≥
0.5V.
1.4V
0.5V or Floating.
1.4V
≥
1.4V when
ISL54200
ISL54200
Full-speed Mode
If the IN pin = Logic “0” and the EN pin = Logic “1”, the
part will be in the full-speed mode. In this mode, the
FSD1 and FSD2 switches are ON and the HSD1 and
HSD2 switches are OFF (high impedance). In a typical
application, V
will be connected to the battery or LDO of the portable
media device. When a computer or USB hub is plugged
into the common USB connector and the part is in the
full-speed mode, a link will be established between the
full-speed driver section of the media player and the
computer. The device will be able to transmit and receive
data from the computer at a data rate of 12Mbps.
High-speed Mode
If the IN pin = Logic “1” and the EN pin = Logic “1”, the
part will go into high-speed mode. In high-speed mode,
the HSD1 and HSD2 switches are ON and the FSD1 and
FSD2 switches are OFF (high impedance). When a USB
cable from a computer or USB hub is connected at the
common USB connector and the part is in the high-speed
mode, a link will be established between the high-speed
driver section of the media player and the computer. The
device will be able to transmit and receive data from the
computer at a data rate of 480Mbps.
All Switches OFF Mode
If the IN pin = Logic “0” or Logic “1” and the EN pin =
Logic “0”, all of the switches will turn OFF (high
impedance).
The all OFF state can be used to switch between the two
USB sections of the media player. When disconnecting
from one USB device to the other USB device, you can
momentarily put the ISL54200 switch in the “all off”
state in order to get the computer to disconnect from the
one device so it can properly connect to the other USB
device when that channel is turned ON.
DD
will be in the range of 2.8V to 3.6V and
June 17, 2010
FN6408.2