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PDF AAT4625 Data sheet ( Hoja de datos )
| Número de pieza | AAT4625 | |
| Descripción | USB Single-Channel Power Switch | |
| Fabricantes | Advanced Analogic Technologies | |
| Logotipo |  |
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General Description
The AAT4625 SmartSwitch™ is part of
AnalogicTech's Application Specific Power
MOSFET™ (ASPM™) product family. It is a 1.0A
Current Limited P-channel, MOSFET power switch
designed for high-side load-switching applications.
This switch operates with inputs ranging from 2.7V
to 5.5V, making it ideal for both 3V and 5V systems.
An integrated current-limiting circuit protects the
input supply against large changes in load current
which may cause the supply to fall out of regulation.
The AAT4625 is also protected from thermal over-
load which limits power dissipation and junction
temperatures. The current limit threshold is factory
programmed at 1.5A, with a maximum of 2.0A. The
quiescent supply current is typically a low 16µA. In
shutdown mode, the supply current decreases to
less than 1µA.
The AAT4625 is available in 8 pin SOP or TSSOP
and is specified over a -40 to 85°C temperature
range.
The AAT4600 Series is a family of adjustable and
fixed SmartSwitch™ products with a range of cur-
rent handling capabilities. Single versions with
adjustable current limit (AAT4601) or fixed current
limit (AAT4625) as well as dual versions with fixed
current limit (AAT4626) are available.
AAT4625
USB Single-Channel Power Switch
Features
SmartSwitch™
• Compliant with USB 1.1 and 2.0 specifications
• 2.7V to 5.5V Input voltage range
• 1.0A minimum continuous current
• 2.0A maximum current limit
• 60mΩ typical RDS(ON)
• Low quiescent current
• Typically 16µA
• 1µA max with Switch off
• Thermal shutdown
• Fault flag with 10ms blanking
• Undervoltage Lockout
• Temp range -40 to 85°C
• UL Approved—File No. E217765
• 8 pin SOP or TSSOP package
Applications
• USB ports and peripherals
• Notebook computers
• Hot swap supplies
• General purpose power switching
UL Recognized Component
Typical Application
VCC 5.0V
0.1µF
100k
EN (EN)
7 IN
2 FLG
AAT4625
1
EN (EN)
3
6
OUT
OUT 8
OUTPUT
120µF
GND
GND
4625.2002.1.0.93
1
1 page  
(Unless otherwise noted, VIN = 5V, TA = 25°C)
Start Into 1 Ohm load
EN (5V/div)
FAULT (5V/div)
Vout (1V/div)
Iin (500mA/div)
1ms/div
AAT4625
USB Single-Channel Power Switch
Thermal Shutdown Response
EN (5V/div)
FAULT (5V/div)
Vout (1V/div)
Iin (500mA/div)
50ms / div
Short Circuit Through 0.3 Ohm
8 12
6
Input Voltage
8
4
Output Current
4
2
0
-1 0
Output Voltage
123
Time (µs)
4
0
-4
5
Short Circuit Through 0.6 Ohm
89
6
Input Voltage
6
4 Output Current 3
2 Output Voltage 0
0 -3
-1 0 1 2 3 4 5
Time (µs)
Rds(ON) vs. Temperature
80.0
75.0
70.0
65.0
60.0
55.0
50.0
45.0
40.0
-40
VCC=3V
VCC=5V
-20 0 20 40 60 80
Temperature (°C)
100 120
4625.2002.1.0.93
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet AAT4625.PDF ] | |
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