DATASHEET
ISL54224
High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP)
and Overvoltage Indicator Output
The ISL54224 is a single supply dual 2:1 multiplexer that can
operate from a single 2.7V to 5.25V supply. It contains two SPDT
(Single Pole/Double Throw) switches configured as a DPDT. The
part was designed for switching of USB data signals in portable
battery powered products.
The 6.5Ω
switches were specifically designed to pass USB high
speed/full speed data signals. They have high bandwidth and
low capacitance to pass USB high speed data signals with
minimal distortion.
The ISL54224 has OVP circuitry on the D-/D+ com pins that
opens the USB in-line switches when the voltage at these pins
exceeds 3.8V (typ) or goes negative by -0.5V (typ). It isolates
fault voltages up to +5.25V or down to -5V from getting passed
to the other-side of the switch, thereby protecting the USB
transceivers.
The digital logic inputs are 1.8V logic compatible when operated
with a 2.7V to 3.6V supply. The ISL54224 has an open drain
OE/ALM pin that can be driven Low to open all switches and
outputs a Low when the OVP circuitry is activated. It can be used
to facilitate proper bus disconnect and connection when
switching between the USB sources.
The ISL54224 is available in 10 Ld 1.8mmx1.4mm µTQFN and
10 Ld TDFN packages. It operates over a temperature range of
-40°C to +85°C.
FN6969
Rev 1.00
September 19, 2013
Features
• High-speed (480Mbps) and full-speed (12Mbps) signaling
capability per USB 2.0
• 1.8V logic compatible (2.7V to +3.6V supply)
• OE/ALM pin to open all switches and indicate overvoltage
fault condition
• Power OFF protection
• D-/D+ pins overvoltage protection for +5.25V and -5V fault
voltages
• -3dB frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 780MHz
• Low ON capacitance @ 240MHz. . . . . . . . . . . . . . . . . . . . 3.3pF
• Low ON-resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.5Ω
• Single supply operation (V
DD
). . . . . . . . . . . . . . . . 2.7V to 5.25V
• Available in µTQFN and TDFN packages
• Pb-free (RoHS compliant)
• Compliant with USB 2.0 short circuit and overvoltage
requirements without additional external components
Applications
• MP3 and other personal media players
• Cellular/mobile phones
• PDA’s
• Digital cameras and camcorders
• USB switching
Related Literature
• See
AN1571
“ISL54224IRTZEVAL1Z Evaluation Board User's
Manual”
3.3V
500Ω
3.3V
100kΩ
VDD
VBUS
USB CONNECTOR
D-
D-
OVP
D+
GND
D+
LOGIC
CONTROL
OE/ALM
SEL
HSD1-
HSD1+
HSD2-
HSD2+
USB
TRANSCEIVER
µP
USB
TRANSCEIVER
VOLTAGE SCALE (0.1V/DIV)
ISL54224
GND
TIME SCALE (0.2ns/DIV)
FIGURE 1. TYPICAL APPLICATION
FIGURE 2. USB 2.0 HS EYE PATTERN WITH SWITCHES IN THE
SIGNAL PATH
FN6969 Rev 1.00
September 19, 2013
Page 1 of 18
ISL54224
Pin Configuration
ISL54224
(10 LD 1.8x1.4 µTQFN)
TOP VIEW
HSD1+
7
OE/ALM
VDD
8
LOGIC
CONTROL
4MΩ
9
HSD1-
6
5
4
3
4MW
1
2
HSD2+
GND
5
OVP
6
D-
D-
GND
D+
SEL
HSD2-
HSD2+
D+
1
4MΩ
OVP
2
3
4
PD
LOGIC CONTROL
4MΩ
9
8
7
OE/ALM
HSD1+
HSD1-
10 VDD
ISL54224
(10 LD 3x3 TDFN)
TOP VIEW
SEL 10
HSD2-
NOTE:
1. Switches Shown for SEL = Logic “1” and OE/ALM = Logic “1”.
Truth Table
OE/ALM
0
1
1
SEL
X
0
1
HSD1-, HSD1+
OFF
ON
OFF
HSD2-, HSD2+
OFF
OFF
ON
Pin Descriptions
µTQFN
1
2
3
4
5
6
7
8
TDFN
2
3
4
5
6
7
8
9
PIN
NAME
HSD2-
DESCRIPTION
USB Data Port Channel 2
HSD2+ USB Data Port Channel 2
D+
GND
D-
HSD1-
USB Data COM Port
Ground Connection
USB Data COM Port
USB Data Port Channel 1
Logic “0” when
0.5V, Logic “1” when
1.4V with a 2.7V to 3.6V
Supply.
HSD1+ USB Data Port Channel 1
OE/ALM Switch Enable/Alarm (open drain
connection)
Drive Low to Open All Switches
Outputs Low when OVP is Activated
VDD
SEL
PD
Power Supply
Select Logic Control Input
Thermal Pad. Tie to Ground or Float
9
10
-
10
1
PD
TABLE 1. USB - OVP POSSIBLE SITUATIONS AND TRIP POINT VOLTAGE
TRIP POINT
CODEC SUPPLY
2.7V to 3.3V
2.7V to 3.3V
SWITCH SUPPLY (V
DD
)
2.7V to 5.25V
2.7V to 5.25V
COMs SHORTED TO
VBUS
-5V
PROTECTED
Yes
Yes
MIN
3.63V
-0.76V
MAX
3.95V
-0.29V
OE/ALM
Low
Low
FN6969 Rev 1.00
September 19, 2013
Page 2 of 18
ISL54224
Ordering Information
PART NUMBER
(Notes 2, 5)
ISL54224IRUZ-T (Note 3)
ISL54224IRUZ-T7A (Note 3)
ISL54224IRTZ (Note 4)
ISL54224IRTZ-T (Note 4)
ISL54224IRUEVAL1Z
NOTES:
2. Please refer to
TB347
for details on reel specifications.
3. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and NiPdAu plate
- e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
4. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil
Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
5. For Moisture Sensitivity Level (MSL), please see device information page for
ISL54224.
For more information on MSL please see techbrief
TB363.
PART
MARKING
T9
T9
4224
4224
Evaluation Board
TEMP. RANGE
(°C)
-40 to +85
-40 to +85
-40 to +85
-40 to +85
PACKAGE
(Pb-Free)
10 Ld 1.8x1.4mm µTQFN (Tape and Reel)
10 Ld 1.8x1.4mm µTQFN (Tape and Reel)
10 Ld 3x3 TDFN
10 Ld 3x3 TDFN (Tape and Reel)
PKG.
DWG. #
L10.1.8x1.4A
L10.1.8x1.4A
L10.3x3A
L10.3x3A
FN6969 Rev 1.00
September 19, 2013
Page 3 of 18
ISL54224
Absolute Maximum Ratings
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 6.5V
VDD to Dx. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.5V
Dx to HSD1x, HSD2x. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.6V
Input Voltages
HSD2x, HSD1x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3V to 6.5V
SEL, OE/ALM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 6.5V
Output Voltages
D+, D- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -5V to 6.5V
Continuous Current (HSD2x, HSD1x) . . . . . . . . . . . . . . . . . . . . . . . . . ±40mA
Peak Current (HSD2x, HSD1x)
(Pulsed 1ms, 10% Duty Cycle, Max). . . . . . . . . . . . . . . . . . . . . . ±100mA
ESD Rating:
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >5.5kV
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >250V
Charged Device Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >2kV
Latch-up Tested per JEDEC; Class II Level A . . . . . . . . . . . . . . . . . . .at 85°C
Thermal Information
Thermal Resistance (Typical)
JA
(°C/W)
JC
(°C/W)
10 Ld µTQFN Package (Note 6, 7) . . . . . . .
210
165
10 Ld TDFN Package (Notes 8, 9) . . . . . . .
58
22
Maximum Junction Temperature (Plastic Package) . . . . . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . . . . . -65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
VDD Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.25V
Logic Control Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V to 5.25V
Analog Signal Range
V
DD
= 2.7V to 5.25V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V to 3.6V
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
6.
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief
TB379
for details.
7. For
JC
, the “case temp” location is taken at the package top center.
8.
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
Brief
TB379.
9. For
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications - 2.7V to 5.25V Supply
VO
E/ALMH
= 1.4V, V
OE/ALML
= 0.5V, (Note 10), Unless Otherwise Specified.
Boldface limits apply over the operating temperature range, -40°C to +85°C.
PARAMETER
TEST CONDITIONS
Test Conditions: V
DD
= +3.3V, GND = 0V, V
SELH
= 1.4V, V
SELL
= 0.5V,
TEMP
MIN
MAX
(°C) (Notes 11, 12) TYP (Notes 11, 12) UNITS
ANALOG SWITCH CHARACTERISTICS
ON-Resistance, r
ON
(High-Speed)
r
ON
Matching Between
Channels,
r
ON
(High-Speed)
r
ON
Flatness, R
FLAT(ON)
(High-Speed)
ON-Resistance, r
ON
OFF Leakage Current,
I
HSD1x(OFF)
ON Leakage Current,
I
HSD1x(ON)
OFF Leakage Current,
I
HSD2x(OFF)
ON Leakage Current,
I
HSD2x(ON)
Power OFF Leakage Current,
I
D+
, I
D-
V
DD
= 2.7V, SEL = 0.5V or 1.4V, OE/ALM = 1.4V, I
Dx
= 17mA, V
HSD1x
or V
HSD2x
= 0V to 400mV (see Figure 5, Note 15)
V
DD
= 2.7V, SEL = 0.5V or 1.4V, OE/ALM = 1.4V, I
Dx
= 17mA, V
V
HSD1x
or V
HSD2x
= Voltage at max r
ON
, (Notes 14, 15)
V
DD
= 2.7V, SEL = 0.5V or 1.4V, OE/ALM = 1.4V, I
Dx
= 17mA, V
HSD1x
or V
HSD2x
= 0V to 400mV, (Notes 13, 15)
V
DD
= 3.3V, SEL = 0.5V or 1.4V, OE/ALM = 1.4V, I
COMx
= 17mA, V
D+
or V
D-
= 3.3V (See Figure 6, Note 15)
V
DD
= 5.25V, SEL = V
DD
and OE/ALM = V
DD
or OE/ALM = 0V,
V
Dx
= 0.3V, 3.3V, V
HSD1x
= 3.3V, 0.3V, V
HSD2x
= 0.3V, 3.3V
V
DD
= 5.25V, SEL = 0V, OE/ALM = V
DD
, V
Dx
= 0.3V, 3.3V,
V
HSD1X
= 0.3V, 3.3V, V
HSD2x
= 3.3V, 0.3V
V
DD
= 5.25V, SEL = 0V and OE/ALM = V
DD
or OE/ALM = 0V,
V
Dx
= 3.3V, 0.3V, V
HSD2x
= 0.3V, 3.3V, V
HSD1X
= 3.3V, 0.3V
V
DD
= 5.25V, SEL = V
DD
, OE/ALM = V
DD
, V
Dx
= 0.3V, 3.3V,
V
HSD2x
= 0.3V, 3.3V, V
HSD1x
= 3.3V, 0.3V
V
DD
= 0V, V
D+
= 5.25V, V
D-
= 5.25V, SEL = OE/ALM = V
DD
25
Full
25
Full
25
Full
25
Full
25
Full
25
Full
25
Full
25
Full
25
25
-
-
-
-
-
-
-
-
-20
-30
-
-
-20
-30
-
-
-
-
6.5
-
0.2
-
0.3
-
12
-
1
-
2
-
1
-
2
-
5
19
7
9
0.45
0.5
0.5
1
20
25
20
30
3
4
20
30
3
4
13
26
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
nA
nA
µA
µA
nA
nA
µA
µA
µA
µA
Power OFF Logic Current, I
SEL
, V
DD
= 0V, SEL = OE/ALM = 5.25V
I
OE/ALM
FN6969 Rev 1.00
September 19, 2013
Page 4 of 18
ISL54224
Electrical Specifications - 2.7V to 5.25V Supply
VO
E/ALMH
= 1.4V, V
OE/ALML
= 0.5V, (Note 10), Unless Otherwise Specified.
Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued)
PARAMETER
Power OFF D+/D- Current,
I
HSDX+
, I
HSDX-
Positive Fault-Protection Trip
Threshold, V
PFP
TEST CONDITIONS
Test Conditions: V
DD
= +3.3V, GND = 0V, V
SELH
= 1.4V, V
SELL
= 0.5V,
TEMP
MIN
MAX
(°C) (Notes 11, 12) TYP (Notes 11, 12) UNITS
25
-
0.05
1
µA
V
DD
= 0V, SEL = OE/ALM = V
DD
, V
HSDX+
= V
HSDX-
= 5.25V
OVERVOLTAGE PROTECTION DETECTION
V
DD
= 2.7V to 5.25V, SEL = 0V or V
DD
, OE/ALM = V
DD
,
see Table 1 on page 2
25
25
25
25
25
3.63
-0.76
-
-
-
3.8
-0.5
1
2
40
3.95
-0.29
-
-
-
V
V
µs
µs
µs
Negative Fault-Protection Trip V
DD
= 2.7V to 5.25V, SEL = 0V or V
DD
, OE/ALM = V
DD
,
Threshold, V
NFP
see Table 1 on page 2
OFF Persistence Time
Fault Protection Response
Time
Negative OVP Response: V
DD
= 2.7V, SEL = 0V or V
DD
,
OE/ALM = V
DD
, V
Dx
= 0V to -5V, R
L
= 15kΩ
Positive OVP Response: V
DD
= 2.7V, SEL = 0V or V
DD
, OE/ALM = V
DD
,
V
Dx
= 0V to 5.25V, R
L
= 15kΩ
V
DD
= 2.7V, SEL = 0V or V
DD
, OE/ALM = V
DD
, V
Dx
= 0V to 5.25V or 0V
to -5V, R
L
= 15kΩ
ON Persistence Time
Fault Protection Recovery
Time
DYNAMIC CHARACTERISTICS
Turn-ON Time, t
ON
Turn-OFF Time, t
OFF
Break-Before-Make Time
Delay, t
D
V
DD
= 3.3V, Vinput = 3V, R
L
= 50Ω, C
L
= 50pF (see Figure 3)
V
DD
= 3.3V, Vinput = 3V, R
L
= 50Ω, C
L
= 50pF (see Figure 3)
V
DD
= 3.3V, R
L
= 50Ω, C
L
= 50pF (see Figure 4)
25
25
25
25
25
25
25
25
25
25
25
25
25
-
-
-
-
-
-
-
-
-
-
-
-
-
110
70
40
90
120
50
250
-32
-30
780
2.5
5.4
3.3
-
-
-
-
-
-
-
-
-
-
-
-
-
ns
ns
ns
ns
ns
ps
ps
dB
dB
MHz
pF
pF
pF
Turn-ON Enable Time, t
ENABLE
V
DD
= 3.3V, V
INPUT
= 3V, R
L
= 15kΩ, C
L
= 50pF, Time out of All-Off
state
Turn-OFF Disable Time,
t
DISABLE
Skew, (t
SKEWOUT -
t
SKEWIN
)
Rise/Fall Degradation
(Propagation Delay), t
PD
Crosstalk
OFF-Isolation
-3dB Bandwidth
OFF Capacitance, C
HSxOFF
V
DD
= 3.3V, V
INPUT
= 3V, R
L
= 15kΩ, C
L
= 50pF, Time into All-Off
state, Time is highly dependent on the load (R
L
, C
L
) time constant.
V
DD
= 3.3V, SEL = 0V or 3.3V, OE/ALM = V
DD
, R
L
= 45Ω,C
L
= 10pF,
t
R
= t
F
= 500ps at 480Mbps, (Duty Cycle = 50%) (see Figure 8)
V
DD
= 3.3V, SEL = 0V or 3.3V, OE/ALM = V
DD
, R
L
= 45Ω,C
L
= 10pF
see
Figure 8)
V
DD
= 3.3V, R
L
= 50Ω, f = 240MHz (see Figure 7)
V
DD
= 3.3V, R
L
= 50Ω, f = 240MHz
Signal = 0dBm, 0.2VDC offset, R
L
= 50Ω
f = 1MHz, V
DD
= 3.3V, SEL = 0V or 3.3V, OE/ALM = 0V (see Figure 6)
COM ON Capacitance, C
DX(ON)
f = 1MHz, V
DD
= 3.3V, SEL = 0V or 3.3V, OE/ALM = V
DD
(see Figure 6)
COM ON Capacitance, C
DX(ON)
f = 240MHz, V
DD
= 3.3V, SEL = 0V or 3.3V, OE/ALM = V
DD
(see Figure 6)
POWER SUPPLY CHARACTERISTICS
Power Supply Range, V
DD
Positive Supply Current, I
DD
Positive Supply Current, I
DD
Positive Supply Current, I
DD
Positive Supply Current, I
DD
V
DD
= 5.25V, SEL = 0V or V
DD
, OE/ALM = V
DD
V
DD
= 3.6V, SEL = 0V or V
DD
, OE/ALM = V
DD
V
DD
= 3.6V, SEL = 0V or V
DD
, OE/ALM = 0V
V
DD
= 4.3V, SEL = 2.6V, OE/ALM = 0V or 2.6V
Full
25
Full
25
Full
25
Full
25
Full
2.7
-
-
-
-
-
-
-
-
45
-
23
-
23
-
35
-
5.25
58
66
30
35
30
35
45
52
V
µA
µA
µA
µA
µA
µA
µA
µA
FN6969 Rev 1.00
September 19, 2013
Page 5 of 18
单片机
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
