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PDF AAT4282B Data sheet ( Hoja de datos )
| Número de pieza | AAT4282B | |
| Descripción | Slew Rate Controlled Load Switch | |
| Fabricantes | Skyworks Solutions | |
| Logotipo |  |
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General Description
The AAT4282B SmartSwitch™ is a member of Skyworks'
Application Specific Power MOSFET™ (ASPM™) product
family. The AAT4282B is a dual P-channel MOSFET power
switch designed for high-side load-switching applications.
Each MOSFET has a typical RDS(ON) of 67m, allowing
increased load switch current handling capacity with a low
forward voltage drop. The AAT4282B offers a shutdown
load discharge circuit to rapidly turn off a load circuit
when the switch is disabled. A slew-rate selector pin can
switch between fast and slow slew rate.
The AAT4282B load switch operates from 1.5V up to
6.5V, making it ideal for both 3V and 5V systems. Input
logic levels are TTL and 2.5V to 5V CMOS compatible.
The quiescent supply current is a very low, less than
1μA.
The AAT4282B is available in a Pb-free, low profile 2.0 ×
2.0mm TDFN22-8 package and is specified over the
-40°C to 85°C temperature range.
DATA SHEET
AAT4282B
Slew Rate Controlled Load Switch
Features
• VIN Range: 1.5V to 6.5V
• Low RDS(ON)
▪ 67m Typical @ 5V
▪ 125m Typical @ 1.8V
• Slew Rate Turn-On Time
▪ 750μs - Slow (FAST = Low)
▪ 65μs - Fast (FAST = High)
• Fast Shutdown Load Discharge Option
• Low Quiescent Current
▪ 40nA Typical
• TTL/CMOS Input Logic Level
• Temperature Range -40°C to 85°C
• TDFN22-8 Package
Applications
• Cellular Telephones
• Digital Still Cameras
• Hotswap Supplies
• Notebook Computers
• PDA Phones
• PDAs
• PMPs
• Smartphones
www.DataSheet.net/
Typical Application
INA
INB
C1 C2
1μF 1μF
ON/OFF
ON/OFF
FAST/ SLOW
INA OUTA
INB OUTB
ENA AAT4282B
ENB
FAST
GND
OUTA
OUTB
C3
0.1μF
C4
0.1μF
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201859B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 14, 2012
1
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
Typical Characteristics
Unless otherwise noted, VIN = 5V, TA = 25°C.
Off Supply Current vs. Temperature
(VIN = 5.0V, EN = 0V; No Load)
0.20
0.16
0.12
0.08
0.04
0.00
-40
-15 10 35 60
Temperature (°C)
85
On-Resistance vs. Input Voltage
180
160
100mA
300mA
140 2000mA
120
100
80
60
1.8 2.3 2.8 3.3
3.8 4.3 4.8 5.3 5.8 6.3
Input Voltage (V)
EN Input ON/OFF Threshold vs. Input Voltage
1.5
1.3
1.1
0.9
0.7
0.5
1.5
2.0 2.5
3.0 3.5
VENH
VENL
4.0 4.5 5.0 5.5 6.0 6.5
Input Voltage (V)
DATA SHEET
AAT4282B
Slew Rate Controlled Load Switch
Quiescent Current vs. Input Voltage
(No Load; Single Switch)
0.20
0.16
0.12
0.08
0.04
0.00
1.5
2.0 2.5
3.0 3.5 4.0 4.5 5.0 5.5
Input Voltage (V)
6.0 6.5
On-Resistance vs. Temperature
(I = 300mA)
LOAD
120
100
www.DataSheet.net/
80
60
40
20
0
-40
VIN = 3.0V
VIN = 5.0V
-15 10 35 60
Temperature (°C)
85
Output Turn On Delay Time
(VINA = 5.0V, VINB = 3.0V, FAST = 3.0V, CIN = 1μF,
COUT = 0.1μF, RLA = RLB = 10Ω)
ENA/B
2V/div
0
VOUTA
2V/div
0
VOUTB
2V/div
0
Time (40μs/div)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201859B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 14, 2012
5
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page 
Printed Circuit Board
Layout Recommendations
For proper thermal management, and to take advantage
of the low RDS(ON) of the AAT4282B, a few circuit board
layout rules should be followed: VIN and VOUT should be
routed using wider than normal traces, and GND should
be connected to a ground plane. For best performance,
CIN and COUT should be placed close to the package pins.
DATA SHEET
AAT4282B
Slew Rate Controlled Load Switch
Evaluation Board Layout
The AAT4282B evaluation layout follows the printed cir-
cuit board layout recommendations and can be used for
good applications layout. Refer to Figures 1 and Firgure
2.
Note: Board layout shown is not to scale.
INA
(1.5V - 6.5V)
C1
1µF
INB
(1.5V - 6.5V)
C2
1µF
JP1
1
2
U1
1 INA
FAST/SLOW 3
OUTA 8
4 2 7 FAST
1
ENA
3
2
ENB 3
1
2
1
4 INB OUTB 5
2 ENA
3 ENB GND 6
AAT4282BIPS
TDFN22-8
www.DataSheet.net/
C3
0.1µF
OUTA
C4
0.1µF
OUTB
C1, C2 1µF 0603 X5R 10V (P/N: GRM188R61A105KA61D)
C3, C4 0.1µF 0603 X5R 10V (P/N: GRM188R71C104KA01D)
Figure 1: AAT4282BIPS Evaluation Board Schematic.
(a) Top Side
(b) Bottom Side
Figure 2: AAT4282BIPS Evaluation Board Layout.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201859B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 14, 2012
11
Datasheet pdf - http://www.DataSheet4U.co.kr/
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet AAT4282B.PDF ] | |
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