AIC1520 Datasheet, PDF (1/7 Pages) Analog Intergrations Corporation – Single High-Side Power Switch

AIC1520
Single High-Side Power Switch
n ^FEATURES
· 120mW (5V Input) High-Side MOSFET Switch.
l 500mA Continuous Load Current.
l 80mA Typical On-State Supply Current.
l Current-Limit / Short Circuit Protection.
l Thermal Limiting Protection under Overcurrent
Condition.
l Undervoltage Lockout Ensures that Switch is off at
Start Up.
l Output can be Forced Higher than Input (Off-State).
l Slow Turn ON and Fast Turn OFF.
n ^DESCRIPTION
The AIC1520 is an integrated high-side power
switch for self-powered and bus-powered
Universal Serial Bus (USB) applications. The
high-side switch is a MOSFET with 120mW R_DS(ON),
which meets USB voltage drop requirements for
maximum transmission wire length.
Output current is typically limited to 1.0A, well
below the 5A safety requirement, and thermal
shutdown function shuts the switch off to prevent
damage under overcurrent conditions.
n ^APPLICATIONS
l Motherboard USB Management.
l USB Power Management.
l Hot Plug-In Power Supplies.
l Battery-Charger Circuit.
l Power Distribution Switch.
Guaranteed minimum output rise time limits
inrush current during hot plug-in, minimizing EMI
and preventing the voltage at upstream port from
dropping excessively.
n ^{TYPICAL APPLICATION CIRCUIT}
VCC
5.0V
+
33mF
AIC1520
IN
OUT
0.1mF
GND
+
*33mF
Ferrite Bead
0.01mF
VBUS
D+
D-
GND
*33mF, 16V Tantalum, or
100mF, 10V Electrolytic
Bold line indicate high-current traces
USB High-Side Power Switch
DATA
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
DS-1520-00 July 7, 00
TEL: [phone] FAX: [phone]
www.analog.com.tw
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