Dual Electronic Resettable Switch
General Description
The AAT4682 dual electronic resettable fuse is a
member of AnalogicTech鈥檚 Application Specific
Power MOSFET鈩?(ASPM鈩? product family. It has
two 1A current limited P-channel MOSFET power
devices that remain fully enhanced as long as the
input power supply is above an under-voltage lock-
out threshold and the load is below the current limit
setting. If the load increases above the current limit
setting, as is the case during a short circuit, the
MOSFET effectively becomes a constant current
source equal to the current limit. If the current limit
condition persists long enough to heat the MOSFET
to an extreme temperature, both devices will ther-
mal cycle off and on until the current limit condition
is removed. Independent open drain FAULT flags
signal an over-current or over-temperature condi-
tion. Quiescent current typically is a low 10碌A(chǔ).
The AAT4682 is available in a Pb-free, 6-pin
SOT23 package and is specified over the -40擄C to
+85擄C temperature range.
AAT4682
Features
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SmartSwitch
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Dual P-Channel MOSFETs
500mA Steady State Load Current
600mA Minimum Current Limit Trip Point
Low Quiescent Current, Typically 10碌A(chǔ)
Over-Temperature Protection
Fast Transient Response:
鈥?<1碌s Response to Short Circuit
400m惟 Typical R
DS(ON)
Under-Voltage Lockout
Temperature Range: -40擄C to +85擄C
FAULT Flag with 2ms Blanking
6-Pin SOT23 Package
Applications
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Cell Phone Ports
Desktop PCs
Peripheral Ports
USB Ports
Typical Application
AAT4682
IN
OUTA
OUTB
FAULTA
GND
FAULTB
INPUT
5
6
4
1
3
OUTA
OUTB
FAULTA
FAULTB
C
IN
1渭F
GND
2
C
OUTA
1渭F
C
OUTB
1渭F
GND
4682.2006.05.1.2
1
AAT4682_06相關(guān)型號PDF文件下載
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