SS6526
Dual USB High-Side Power Switch
FEATURES
•
110mΩ (5V Input) High-Side MOSFET Switch.
500mA Continuous Load Current per Channel.
110µA Typical On-State Supply Current.
1µA Typical Off-State Supply Current.
Current-Limit / Short Circuit Protection.
Thermal Shutdown Protection under Overcurrent
Condition.
Undervoltage Lockout Ensures that Switch is off
at Start Up.
Output
can
be
Forced
Higher
than
Input
DESCRIPTION
The
SS6526
is a dual high-side power switch
for self-powered and bus-powered Universal
Serial Bus (USB) applications. Both high-side
switches are MOSFET with 110m
Ω
R
DS(ON)
,
which meets USB voltage drop requirements for
maximum transmission wire length.
Multi-purpose
indicates
open-drain
fault
flag
output
thermal
over-current
limiting,
shutdown, or undervoltage lockout for each
channel. Output current is typically limited to 1A,
and the thermal shutdown functions of the
power switches independently control their
channel under overcurrent condition.
Guaranteed minimum output rise time limits
inrush current during hot plug-in as well as
minimizing EMI and prevents the voltage at
upstream port from dropping excessively.
(Off-State).
Open-Drain Fault Flag.
Slow Turn ON and Fast Turn OFF.
Enable Active-High or Active-Low.
APPLICATIONS
USB Power Management.
Hot Plug-In Power Supplies.
Battery-Charger Circuit.
Pb-free; RoHS-compliant
10/23/2007 Rev.1.00
www.SiliconStandard.com
1
SS6526
TYPICAL APPLICATION CIRCUIT
VCC
5.0V
4.50V to 5.25V
Upstream VBUS
100mA max
VBUS
D+
D-
GND
+
1µF
C
IN
+
33µF
10K
SS6722
IN
OUT
USB Controller
VIN
ON/OFF
AIC1526
CTLA
FLGA
FLGB
OUTA
IN
GND
0.1µF
VBUS
+
33µF
D+
0.01µF
D-
GND
Ferrite
Bead
10K
+
GND
OVERCURRENT
OVERCURRENT
ON/
GND
10µF
C
OUT
*
CTLB OUTB
DATA
DATA
*
33µF, 16V Tantalum, or
100µF, 10V Electrolytic
Bold line indicate high- current traces
+
33µF
*
0.01µF
VBUS
D+
D-
GND
DATA
Two-Port Self-Powered Hub
ORDERING INFORMATION
SS6526
- XXXXX
PACKING TYPE
TR: TAPE & REEL
TB: TUBE
PACKAGING TYPE
N: DIP-8
S: SOP-8
O: MSOP-8
C: Commercial
G:
Lead Free Commercial
CONTROL POLARITY
0: Active Low
1: Active High
Example:
SS6526-0CSTR
Active Low Version, in SOP-8 Package & Taping
& Reel Packing Type
(CN is not available in TR packing)
SS6526-1PSTR
Active High Version, in Lead Free SOP-8 Package
& Taping & Reel Packing Type
PIN CONFIGURATION
DIP-8
SOP-8
TOP VIEW
CTLA 1
FLGA 2
FLGB 3
CTLB 4
MSOP-8
TOP VIEW
CTLA 1
FLGA 2
FLGB 3
CTLB 4
8 OUTA
7 IN
6 OUTB
5 GND
8 OUTA
7 IN
6 GND
5 OUTB
10/23/2007 Rev.1.00
www.SiliconStandard.com
2
SS6526
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
IN
)
Fault Flag Voltage (V
FLG
)
Fault Flag Current (I
FLG
)
Control Input (V
CTL
)
Operating Temperature Range
Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10sec)
Thermal Resistance,
θ
JA
(Junction to Ambient) DIP-8
(Assume no Ambient Airflow, no Heatsink)
Thermal Resistance,
θ
JC
(Junction to Case)
SOP-8
MSOP-8
7.0V
7.0V
50mA
-0.3V ~7V
-40°C~85°C
125°C
-65°C ~ 150°C
260°C
100°C/W
160°C/W
180°C/W
DIP-8……………………………………..60°C /W
SOP-8……………………………………40°C /W
MSOP-8………………………………….75°C /W
Absolute Maximum Ratings are those values beyond which the life of a device may be
impaired.
TEST CIRCUIT
10K R1
10K R2
ON
10Ω
V
CC
+5V
CTLA
OFF
OUTA
IN
R4
FLGA
0.1µF
C1
FLGB
ON
GND
10Ω
CTLB
OFF
OUTB
SS6526
R4
10/23/2007 Rev.1.00
www.SiliconStandard.com
3
SS6526
ELECTRICAL CHARACTERISTICS
(V
IN
= 5V, T
A
=25°C, unless otherwise specified.) (Note 1)
PARAMETERS
Supply Current
Control Input Voltage
Control Input Current
Control Input Capacitance
Output MOSFET Resistance
Output Turn-On Rise Delay
Output Turn-On Rise Time
Output Turn-Off Delay
Output Turn-Off Fall Time
Output Leakage Current
Current Limit Threshold
Over Temperature Shutdown
Threshold
Error Flag Output Resistance
Error Flag Off Current
UVLO Threshold
T
J
Increasing
T
J
Decreasing
V
IN
= 5V, I
L
=10 mA
V
IN
= 3.3V, I
L
=10mA
V
FLG
= 5V
V
IN
Increasing
V
IN
Decreasing
0.6
1.0
135
125
10
15
0.01
2.6
2.4
25
40
1
µA
V
R
L
= 10Ω each Output
R
L
= 10Ω each Output
R
L
= 10Ω each Output
R
L
= 10Ω each Output
CONDITIONS
V
CTL
=Logic “0”, OUT=Open
V
CTL
=Logic “1”, OUT=Open
V
CTL
=Logic “0”
V
CTL
=Logic “1”
V
CTL
=Logic “0”
V
CTL
=Logic “1”
2.4
0.01
0.01
1
110
100
1000
0.8
0.7
2500
20
20
10
1.25
150
1
1
MIN.
TYP.
0.75
110
MAX.
5
160
0.8
UNIT
µA
V
µA
pF
mΩ
µS
µS
µS
µS
µA
A
°C
Ω
Note 1: Specifications are production tested at T
A
=25°C. Specifications over the -40°C to 85°C operating
temperature range are assured by design, characterization and correlation with Statistical Quality
Controls (SQC).
10/23/2007 Rev.1.00
www.SiliconStandard.com
4
SS6526
TYPICAL PERFORMANCE CHARACTERISTICS
118
116
150
140
ON Resistance (m
Ω
)
114
112
110
108
106
104
3.0
3.5
4.0
4.5
5.0
5.5
RL=47Ω
T
A
=25°C
ON Resistance (m
Ω
)
130
120
110
100
90
80
RL=47Ω
T
A
=25°C
-40
-20
0
20
40
60
80
100
Supply Voltage (V)
Fig. 1 ON Resistance vs. Supply Voltage
3.0
160
Temperature (°C)
Fig. 2 Output On Resistance vs. Temperature
Threshold Voltage (V)
2.8
140
Rising
2.6
Supply Current (
µ
A)
120
2.4
Falling
100
2.2
Both Switches ON
80
2.0
-40
-20
0
20
40
60
80
100
60
3
4
5
6
7
8
Temperature (°C)
Fig. 3 UVLO Threshold Voltage vs. Temperature
130
Supply Voltage (V)
Fig. 4 ON-State Supply Current vs. Supply Voltage
0.10
Supply Current (
µ
A)
Supply Current (
µ
A)
120
0.08
110
0.06
Both Switches ON
100
Both Switches OFF
0.04
90
0.02
80
-40
-20
0
20
40
60
80
100
0
-40
-20
0
20
40
60
80
100
Temperature (
°
C)
Fig. 5 ON State Current vs. Temperature
Temperature (°C)
Fig. 6 OFF-State Current vs. Temperature
10/23/2007 Rev.1.00
www.SiliconStandard.com
5
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