PRODUCT DATASHEET
AAT4626
SmartSwitch
TM
General Description
The AAT4626 SmartSwitch is part of AnalogicTech鈥檚
Application Specific Power MOSFET鈩?(ASPM鈩? product
family. It is a dual-channel 500mA 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 regula-
tion. The AAT4626 is also protected from thermal over-
load which limits power dissipation and junction tem-
peratures. The current limit threshold is factory pro-
grammed at 1.0A, with a maximum of 1.5A. The quies-
cent supply current is typically a low 20渭A. In shutdown
mode, the supply current decreases to less than 1渭A.
The AAT4626 is available in a Pb-free, 8-pin SOP or
TSSOP package and is specified over the -40擄C to +85擄C
temperature range.
The AAT4600 series is a family of adjustable and fixed
SmartSwitch products with a range of current handling
capabilities. Single versions are available with adjustable
current limit (AAT4601) or fixed current limit (AAT4625),
as well as dual versions with fixed current limit
(AAT4626).
USB Dual-Channel Power Switch
Features
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2.7V to 5.5V Input Voltage Range
Compliant to USB 1.1 and 2.0 Specifications
500mA (Min) Continuous Current per Channel
1.25A (Max) Current Limit per Channel
90m惟 Typical R
DS(ON)
Low Quiescent Current:
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Typically 20渭A
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1渭A Max with Switches Off
Thermal Shutdown
Slew Rate Limited Turn On
Fault Flag with 2ms Blanking
Under-Voltage Lockout
Temperature Range: -40擄C to +85擄C
UL Approved鈥擣ile No. E217765
8-Pin SOP or TSSOP Package
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Applications
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General-Purpose Power Switching
Hot Swap Supplies
Notebook Computers
USB Ports and Peripherals
UL Recognized Component
Typical Application
100k惟
100k惟
V
CC
5.0V
ENA
(ENA)
ENB
0.1渭F
(ENB)
7
IN
ENA
(ENA)
ENB
(ENB)
GND
6
FLGA
2
3
8
5
1
AAT4626
FLGB
OUTA
OUTB
OUTPUTA
OUTPUTB
4
47渭F
GND
47渭F
GND
4626.2008.02.1.3
www.analogictech.com
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AAT4626_08相關(guān)型號(hào)PDF文件下載
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