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PDF AAT4682 Data sheet ( Hoja de datos )
| Número de pieza | AAT4682 | |
| Descripción | Dual Electronic Resettable Switches | |
| Fabricantes | Advanced Analogic Technologies | |
| Logotipo |  |
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AAT4682
Dual Electronic Resettable Switches
General Description
Features
SmartSwitch™
The AAT4682 Dual Electronic Resettable fuse is
part of the AnalogicTech Application Specific Power
MOSFET (ASPM™) line of products. 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 lockout
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 10µA.
The AAT4682 is available in a 6 pin SOT-23, spec-
ified over a -40 to 85°C temperature range.
• Dual P-Channel MOSFETS
• 500mA steady state load current
• 600mA minimum current limit trip point
• Low quiescent current, typically 10µA.
• Over temperature protection
• Fast transient response:
• < 1µs response to short circuit
• 400mΩ typical RDS(ON)
• Undervoltage Lockout
• Temp range -40 to 85°C
• FAULT flag with 2ms blanking
• 6-pin SOT23 package
Applications
• USB ports
• Peripheral ports
• Desktop PCs
• Cell phone ports
Typical Application
INPUT
CIN
1µF
GND
5 IN
AAT4682
OUTA 6
OUTB 4
FAULTA 1
GND
2
FAULTB 3
FAULTA
FAULTB
COUTA
1µF
OUTA
OUTB
COUTB
1µF
GND
4682.2001.11.0.9
1
1 page  
Typical Characteristics
(Unless otherwise noted, VIN = 5V, TA = 25°C)
Thermal Shutdown Response
FAULTA (5V/div)
OUTA (5V/div)
FAULTB
(5V/div)
OUTB
(5V/div)
IIN (1A/div)
50ms/div
AAT4682
Dual Electronic Resettable Switches
Fault Delay
FAULTA (5V/div)
OUTA (5V/div)
FAULTB (5V/div)
OUTB (5V/div)
IIN (1A/div)
500µs/div
4682.2001.11.0.9
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet AAT4682.PDF ] | |
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