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ILC7526-IK Arkusz danych(PDF) 1 Page - Impala Linear Corporation

Numer części ILC7526-IK
Szczegółowy opis  USB DUAL CONTROL SWITCHES
Download  6 Pages
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Producent  IMPALA [Impala Linear Corporation]
Strona internetowa  
Logo IMPALA - Impala Linear Corporation

ILC7526-IK Arkusz danych(HTML) 1 Page - Impala Linear Corporation

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• 2 independent switches with ENABLE and FLAG
• 500mA continuous load current per switch (channel)
• 140m
Ω maximum R
DSON (switch on-resistance)
• 1.25A maximum short circuit current limit
• Thermal shutdown
• 110µA typical on-state supply current
• 0.75µA typical off-state supply current
• 2.4V typical undervoltage lockout
• 2.8V to 5.8V input voltage range
• 1 ms turn-on (soft-start)
• Fast turn-off
• Outputs can be forced higher than inputs (off-state)
• USB specification compliant
• Active-high or active-low ENABLE versions
• 8-pin SOIC or 8-pin mini-DIP packages
• USB host and self powered hubs
• USB bus-powered hubs
• USB monitors, printers, cameras and other USB
controlled peripherals
• Hot plug-in power supplies
• Battery charger circuits
The ILC7526 contains dual high side power control
switches, with independent enable and flag functions,
integrated into a single 8-pin SOIC package. With just a
few external components, the ILC7526 can be easily con-
figured to meet requirements for either self powered or
bus powered
USB (Universal Serial Bus) applications.
The ILC7526 has active high ENABLE inputs, while the
ILC7536 ENABLE inputs are active low.
With a maximum RDSON value of 140mΩ per switch, the
USB voltage drop requirements can be achieved. Each
switch can also supply up to 500mA, with internal circuitry
limiting the fault current to 750mA. Fault conditions are also
reported to the USB controller via one of the independent
flag pins. Internal circuitry provides a soft-start that elimi-
nates momentary upstream voltage drops when the switch
is enabled, especially in bus powered applications.
Additional features include undervoltage lockout (2.4V),
fast turn-off, 2.8V to 5.8V input voltage range, thermal
shutdown to prevent switch failure from high current loads,
and 3.3V and 5V logic compatible enable inputs.
The ILC7526 and ILC7536 are available in both 8-pin SOIC
and 8-pin mini-DIP packages.
ILC7526/7536
USB Dual Control Switches
Impala Linear Corporation
Impala Linear Corporation
1
(408) 574-3939
www.impalalinear.com
Dec 2000
ILC7526/7536 1.5
Final
V
BUS
4.5V to 5.25V
Upstream VBUS
100mA max
D+
D-
GND
Data
ILC7082-3.3
IN
1µF
GND
3.3V USB Controller
100k
100k
1µF
ON/OFF
V
IN
OVERCURRENT
OVERCURRENT
ON/OFF
ENA
FLGA
FLGB
ENB
IN
GND
OUTB
ILC7526
V
CC 5.0V
+
+
47µF
0.1µF
47µF
V
BUS
D+
D-
GND
V
BUS
D+
D-
GND
Data
(Two Pair)
to USB Controller
100k
100k
OUTA
OUT
Ordering Information* (TA = -40°C to =85°C)
ILC7526-IK
ILC7526-IN
ILC7536-IK
ILC7536-IN
Active High Enable, SO-8 package
Active High, DIP-8 package
Active Low, SO-8 package
Active Low, DIP-8 package
General Description
Features
Applications


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