DATASHEET
ISL6185
Dual USB Port Power Supply Controller
FN6937
Rev 3.00
March 8, 2012
The ISL6185 USB power controller family provides fully
independent overcurrent (OC) fault protection for two or more
USB ports.
Features
• 2.5V to 5V Operating Range
• 71m Integrated Power P-channel MOSFET Switches
This product family consists of sixteen individual functional
product variants and three package options. It is operation
rated for a nominal +2.5V to +5V range and is specified over
the full commercial and industrial temperature ranges.
• Continuous Current Options for 0.6A, 1.1A, 1.5A and 1.8A
• Thermally Insensitive 12ms of Current Limiting Prior to
Turn-Off
Each ISL6185 type incorporates in a single package two
71m P-channel MOSFET power switches for power control.
Each features internal current monitoring, accurate current
limiting, and current limited delay to turn-off, for system
supply protection along with control and communication I/O.
• Output Discharges with Reverse Current Blocking When
Disabled
• Latch-off or Auto Restart Options
• 1µA Off-State Supply Current
• Enable Polarity Options
The ISL6185 family offers product variants with specified
continuous output current levels of 0.6A, 1.1A, 1.5A or 1.8A;
enable active high or low inputs; and latch off or automatic retry
after overcurrent turn-off, making these devices well suited for
many low-power applications.
• Industry-standard Pin for Pin SOIC, and Smaller DFN
Packages Available
• UL Recognized, File Number: E333469
This family of ICs is offered in an industry-standard SOIC
pinout and also in the 70% smaller 3x3 DFN packages
providing similar or enhanced performance in the smallest
possible package.
Applications
• USB 1, 2, 3 Port Power Management
• Low Power (18W) Electronic Circuit Limiting and Breaker
D+
D-
USB
PORT 1
U
S
B
VBUS
1.3
1.2
1.1
1.0
0.9
0.8
0.7
OUT_1
ENABLE_1
FAULT_1
VIN
C
O
N
T
+5V
GND
R
O
L
ISL6185
FAULT_2
L
E
R
ENABLE_2
OUT_2
VBUS
USB
PORT_2
D+
D-
-40
-25
0
25
45
75
85
115
TEMPERATURE (°C)
USB PORT POWER
FIGURE 1. TYPICAL APPLICATION
FIGURE 2. NORMALIZED r
TEMPERATURE
DS(ON)
CHARACTERISTIC CURVE
FN6937 Rev 3.00
March 8, 2012
Page 1 of 20