AAT4618IGV-1-T1 Datasheet PDF - Advanced Analogic Technologies
| Part Number | AAT4618IGV-1-T1 | |
| Description | Current Limited Load Switch | |
| Manufacturers | Advanced Analogic Technologies | |
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General Description
The AAT4618 SmartSwitch™ is a member of
AnalogicTech's Application Specific Power MOS-
FET™ (ASPM™) product family. It is a Current
Limited P-channel MOSFET power switch designed
for high-side load-switching applications operating
with inputs ranging from 2.4V to 5.5V which makes it
ideal for 2.5V, 3V and 5V systems. An integrated cur-
rent-limiting circuit protects the input supply from large
currents which potentially cause the supply to fall out
of regulation. In addition, the AAT4618 thermal over-
load protection limits power dissipation and junction
temperatures associated with prolonged periods of
operation in current limit. Due to its low RDS(ON), the
AAT4618 can be used to control loads that require up
to 500mA even while operating at high ambient tem-
peratures. The ultra fast current-limit response to a
sudden short circuit is a mere 400ns which reduces
the requirements of local supply bypassing. An open
drain FAULT flag signals an over current or over tem-
perature condition after a 4ms timeout. Quiescent
current is a low 10µA and in shutdown mode, the sup-
ply current decreases to less than 1µA.
The AAT4618 is available in a 5 pin SOT-23, and an
8 pin SC70JW specified over a -40 to 85°C temper-
ature range.
The AAT4600 Series is a family of adjustable and
fixed SmartSwitch™ products with a range of current
handling capabilities. Available are single versions
with adjustable current limit (AAT4610, AAT4601) as
well as fixed current limit (AAT4625), and dual ver-
sions with fixed current limit (AAT4626, AAT4670).
Typical Application
AAT4618
Current Limited Load Switch
Features
SmartSwitch™
• 2.4V to 5.5V Input voltage range
• 500mA min current limit trip threshold
• Fast transient response:
• 400ns response to short circuit
• Low quiescent current
• 10µA typical
• < 1µA with Switch off
• 125mΩ typical RDS(ON)
• FAULT flag with 4ms blanking
• Undervoltage Lockout
• Thermal shutdown
• Temp range -40 to 85°C
• 4kV ESD Rating
• 5 pin SOT23 package
• 8 pin SC70JW package
Applications
• Peripheral ports
• USB Ports
• Notebook computers
• Personal communication devices
• Hot swap supplies
INPUT
CIN
1µF
IN OUT
AAT4618
ON
(ON)
ON (ON)
GND
FAULT
OUTPUT
100k
FAULT
COUT
0.47µF
GND
GND
4618.2002.2.0.9
1
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Typical Characteristics
(Unless otherwise noted, VIN = 5V, TA = 25ºC)
Turn-On
RL=20Ω, CL=0.47µF
6
5
4
3
2
1
0
-1
-0.5
ON
0.0
OUT
0.5 1.0
Time (µs)
1.5 2.0
Short Circuit through 0.3 Ω
6
Input Voltage
5
Output Current
4
Output Voltage
3
12
10
8
6
24
12
0
-1 0
12 3
Time (µs)
0
45
Fault Delay from Short Circuit
Output Voltage (5V/div)
Output Current (1A/div)
FAULT (5V/div)
4618.2002.2.0.9
Time (1ms/div)
AAT4618
Current Limited Load Switch
Turn-Off
RL=20Ω, CL=0.47µF
6
5
4
3
2
1
0
-1
-10
ON
0
OUT
10 20
Time (µs)
30
40
50
Thermal Shutdown Response
Output Voltage (5V/div)
Output Current (1A/div)
Time (50ms/div)
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
2
ON (ON) Threshold vs. VIN
VON(H)
VON(L)
2.5 3 3.5 4 4.5 5
VIN (V)
5.5
5
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AAT4618IGV-1-T1 electronic component. |
| Information | Total 10 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ AAT4618IGV-1-T1.PDF Datasheet ] | |
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