Dual USB Port Power Supply Controller
ISL6185
Features
The ISL6185 USB power controller family provides fully
independent overcurrent (OC) fault protection for two or more
USB ports.
• 2.5V to 5V Operating Range
• 71mΩ Integrated Power P-channel MOSFET Switches
• Continuous Current Options for 0.6A, 1.1A, 1.5A and 1.8A
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.
• Thermally Insensitive 12ms of Current Limiting Prior to
Turn-Off
• Output Discharges with Reverse Current Blocking When
Disabled
Each ISL6185 type incorporates in a single package two 71mΩ
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.
• Latch-off or Auto Restart Options
• 1µA Off-State Supply Current
• Enable Polarity Options
• Industry-standard Pin for Pin SOIC, and Smaller DFN Packages
Available
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.
• UL Recognized, File Number: E333469
Applications
• USB 1, 2, 3 Port Power Management
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.
• 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
March 8, 2012
FN6937.3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
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