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PDF ISL54226 Data sheet ( Hoja de datos )
| Número de pieza | ISL54226 | |
| Descripción | High-Speed USB 2.0 (480Mbps) DPST Switch | |
| Fabricantes | Intersil | |
| Logotipo |  |
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DATASHEET
High-Speed USB 2.0 (480Mbps) DPST Switch with
Overvoltage Protection (OVP) and Dedicated Charger
Port Detection
ISL54226
The Intersil ISL54226 is a single supply, dual SPST (Single
Pole/Single Throw) switch that is configured as a DPST. It can
operate from a single 2.7V to 5.25V supply. The part was
designed for switching or isolating a USB high-speed source or a
USB high-speed and full-speed source in portable battery
powered products.
The 3.5ΩSPST switches were specifically designed to pass USB
full speed and USB high-speed data signals. They have high
bandwidth and low capacitance to pass USB high-speed data
signals with minimal distortion.
The ISL54226 has OVP detection circuitry on the COM pins to
open the SPST switches when the voltage at these pins
exceeds 3.8V or goes negative by -0.45V. 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 down-
stream transceiver.
The OE/ALM logic pin is an open drain input/output that can
be driven to open the switches or monitored to tell when the
part is in an overvoltage state.
The part has an interrupt (INT) output pin to indicate a 1 to 1
(high/high) state on the COM lines to inform the µprocessor
when entering a dedicated charging port mode of operation.
The ISL54226 is available in 8 Ld 1.2mmx1.4mm µTQFN and
8 Ld 2mmx2mm TDFN packages. It operates over a
temperature range of -40 to +85°C.
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
• Charger interrupt indicator output
• Power OFF protection
• COM pins overvoltage protection for +5.25V and -5V fault
voltages
• -3dB frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 790MHz
• Low ON capacitance @ 240MHz. . . . . . . . . . . . . . . . . . . . . 2pF
• Low ON-resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5Ω
• Single supply operation (VDD). . . . . . . . . . . . . . . 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
3.3V
500Ω
VDD
VBUS
D- COM -
OVP
DET
D+ COM +
GND ISL54226
3.3V
100kΩ
INT
LOGIC OE/ALM
CONTROL
µP
GND
D-
4MΩ
D+
USB
HIGH-SPEED
TRANSCEIVER
FIGURE 1. TYPICAL APPLICATION
TIME SCALE (0.2ns/DIV)
FIGURE 2. USB 2.0 HS EYE PATTERN WITH SWITCHES IN THE
SIGNAL PATH
August 15, 2016
FN7614.2
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2010, 2013, 2016. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
1 page  
ISL54226
Electrical Specifications - 2.7V to 5.25V Supply Test Conditions: VDD = +3.3V, GND = 0V, VOE/ALMH = 1.4V,
VOE/ALML = 0.5V, (Note 10), Unless Otherwise Specified. Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued)
PARAMETER
TEST CONDITIONS
TEMP
MIN
MAX
(°C) (Notes 11, 12) TYP (Notes 11, 12) UNITS
ON Persistence Time
Fault Protection Recovery Time
DYNAMIC CHARACTERISTICS
VDD = 2.7V, OE/ALM = VDD , VDx = 0V to 5.25V or 0V to
-5V, RL = 1.5kΩ
25
- 45 -
µs
Turn-ON Time, tON
VDD = 3.3V, VINPUT = 3V, RL = 50Ω, CL = 50pF
(see Figure 3)
25 - 160 - ns
Turn-OFF Time, tOFF
VDD = 3.3V, VINPUT = 3V, RL = 50Ω, CL = 50pF
(see Figure 3)
25 - 60 - ns
Skew, (tSKEWOUT - tSKEWIN)
VDD = 3.3V, OE/ALM = 3.3V, RL = 45Ω,CL = 10pF,
tR = tF = 500ps at 480Mbps, (Duty Cycle = 50%)
(see Figure 7)
25
- 50 -
ps
Rise/Fall Degradation (Propagation
Delay), tPD
Crosstalk
OFF-Isolation
-3dB Bandwidth
OFF Capacitance, COFF
COM ON Capacitance, C(ON)
COM ON Capacitance, C(ON)
POWER SUPPLY CHARACTERISTICS
VDD = 3.3V, OE/ALM = 3.3V, RL = 45Ω,CL = 10pF,
see Figure 7)
VDD = 3.3V, RL = 50Ω, f = 240MHz (see Figure 6)
VDD = 3.3V, OE/ALM = 0V, RL = 50Ω, f = 240MHz
Signal = 0dBm, 0.86VDC offset, RL = 50Ω
f = 1MHz, VDD = 3.3V, OE/ALM = 0V (see Figure 5)
f = 1MHz, VDD = 3.3V, OE/ALM = 3.3V, (see Figure 5)
f = 240MHz, VDD = 3.3V, OE/ALM = 3.3V
25
25
25
25
25
25
25
- 250 -
ps
- -39 -
dB
- -23 -
dB
- 790 - MHz
- 2.5 -
pF
- 4 - pF
- 2 - pF
Power Supply Range, VDD
Positive Supply Current, IDD
VDD = 5.25V, OE/ALM = 5.25V
Full 2.7
5.25
V
25 - 45 56 µA
Full -
- 59 µA
Positive Supply Current, IDD
VDD = 3.6V, OE/ALM = 3.6V
25
-
23 30
µA
Full -
- 34 µA
Positive Supply Current, IDD
VDD = 4.3V, OE/ALM = 2.6V
25
-
35 45
µA
Full -
- 50 µA
Positive Supply Current, IDD
VDD = 3.6V, OE/ALM = 1.4V
25
-
25 32
µA
Full -
- 38 µA
DIGITAL INPUT CHARACTERISTICS
Input Voltage Low, VOE/ALML
VDD = 2.7V to 3.6V
Full -
- 0.5 V
Input Voltage High, VOE/ALMH
VDD = 2.7V to 3.6V
Full 1.4
-
-
V
Input Voltage Low, VOE/ALML
VDD = 3.7V to 4.2V
Full -
- 0.7 V
Input Voltage High, VOE/ALMH
VDD = 3.7V to 4.2
Full 1.7
-
-
V
Input Voltage Low, VOE/ALML
VDD = 4.3V to 5.25V
Full -
- 0.8 V
Input Voltage High, VOE/ALMH
VDD = 4.3V to 5.25V
Full 2.0
-
-
V
Input Current, IOE/ALML
VDD = 5.25V, OE/ALM = 0V
Full - -8.2 - nA
Input Current, IOE/ALMH
VDD = 5.25V, OE/ALM = 5.25V, 4MΩ Pull-down
Full - 1.4 - µA
NOTES:
10. VLOGIC = Input voltage to perform proper function.
11. The algebraic convention, whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
12. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
13. Flatness is defined as the difference between maximum and minimum value of ON-resistance over the specified analog signal range.
14. rON matching between channels is calculated by subtracting the channel with the highest max rON value from the channel with lowest max rON value.
15. Limits established by characterization and are not production tested.
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5
FN7614.2
August 15, 2016
5 Page 
ISL54226
Typical Performance Curves TA = +25°C, Unless Otherwise Specified
3.4
ICOM = 17mA
3.3
2.7V
16
ICOM = 17mA
14
12
3.2 3.0V
3.3V
3.1 3.6V
4.3V
3.0 5.25V
2.9 0
0.1 0.2 0.3
VCOM (V)
0.4
FIGURE 11. ON-RESISTANCE vs SUPPLY VOLTAGE vs SWITCH
VOLTAGE
10
2.7V
8
3.0V
6
4
2
5.25V
3.3V
0
0 0.6 1.2 1.8 2.4 3.0 3.6
VCOM (V)
FIGURE 12. ON-RESISTANCE vs SUPPLY VOLTAGE vs SWITCH
VOLTAGE
4.5
V+ = 2.7V
ICOM = 17mA
4.0
3.5
3.0
+85°C
+25°C
2.5 -40°C
2.0
1.5
0
0.1 0.2 0.3
VCOM (V)
FIGURE 13. ON-RESISTANCE vs SWITCH VOLTAGE
0.4
18
V+ = 2.7V
16 ICOM = 17mA
14
12
10
+85°C
8 +25°C
6
4
2 -40°C
00 0.5 1.0 1.5 2.0 2.5 3.0
VCOM (V)
FIGURE 14. ON-RESISTANCE vs SWITCH VOLTAGE
3.5
4.0
+85°C
3.5
3.0 +25°C
2.5 -40°C
V+ = 3.3V
ICOM = 17mA
2.0
0
0.1
0.2
VCOM (V)
0.3
FIGURE 15. ON-RESISTANCE vs SWITCH VOLTAGE
0.4
9
V+ = 3.3V
8 ICOM = 17mA
7
6
5
+85°C
4
+25°C
3
-40°C
2
1 0 0.5 1.0 1.5 2.0 2.5 3.0
VCOM (V)
FIGURE 16. ON-RESISTANCE vs SWITCH VOLTAGE
3.6
Submit Document Feedback 11
FN7614.2
August 15, 2016
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet ISL54226.PDF ] | |
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