Analogic AAT4282A Slew rate controlled load switch Datasheet

PRODUCT DATASHEET
AAT4282A
SmartSwitchTM
Slew Rate Controlled Load Switch
General Description
Features
The AAT4282A SmartSwitch™ is a member of AnalogicTech’s
Application Specific Power MOSFET™ (ASPM™) product
family. The AAT4282A is a dual P-channel MOSFET power
switch designed for high-side load-switching applications.
Each MOSFET has a typical RDS(ON) of 60mΩ, allowing
increased load switch current handling capacity with a low
forward voltage drop. The device is available in three different versions with flexible turn-on and turn-off characteristics – from very fast to slew-rate limited. The standard 4282A (-1) version has a slew-rate limited turn-on
load switch. The AAT4282A (-2) version features fast
turn-on capability, typically less than 500ns turn-on and
3μs turn-off times. The AAT4282A (-3) variation offers a
shutdown load discharge circuit to rapidly turn off a load
circuit when the switch is disabled. An additional feature
is a slew-rate selector pin which can switch between fast
and slow slew rate.
• VIN Range: 1.5V to 6.5V
• Low RDS(ON)
▪ 60mΩ Typical @ 5V
▪ 140mΩ Typical @ 1.5V
• Slew Rate Turn-On Time Options
▪ 1ms
▪ 0.5μs
▪ 100μs
• Fast Shutdown Load Discharge Option
• Low Quiescent Current
▪ Typically 1μA
• TTL/CMOS Input Logic Level
• Temperature Range -40°C to 85°C
• FTDFN22-8 Package
Applications
•
•
•
•
•
•
•
•
All the AAT4282A load switch versions are designed to
operate from 1.5V up to 6.5V, making them 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 1μA.
The AAT4282A is available in the Pb-free, low profile
2.0x2.0mm FTDFN22-8 package and is specified over
the -40 to 85°C temperature range.
Cellular Telephones
Digital Still Cameras
Hotswap Supplies
Notebook Computers
PDA Phones
PDAs
PMPs
Smartphones
Typical Application
INA
INA
OUTA
OUTA
INB
INB
OUTB
OUTB
C1
1μF
C2
1μF
ON/OFF
ENA
ON/OFF
ENB
FAST/SLOW
4282A.2008.02.1.2
FAST
AAT4282A
GND
N/C
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C3
0.1μF
C4
0.1μF
1
PRODUCT DATASHEET
AAT4282A
SmartSwitchTM
Slew Rate Controlled Load Switch
Pin Descriptions
Pin #
Symbol
1
INA
2
ENA
3
ENB
4
INB
5
6
7
8
OUTB
GND
FAST
OUTA
Function
This is the pin to the P-channel MOSFET source for Switch A. Bypass to ground through a 1μF capacitor.
INA is independent of INB
Active-High Enable Input A. A logic low turns the switch off and the device consumes less than 1μA of current. Logic high resumes normal operation.
Active-High Enable Input B. A logic low turns the switch off and the device consumes less than 1μA of current. Logic high resumes normal operation.
This is the pin to the P-channel MOSFET source for Switch B. Bypass to ground through a 1μF capacitor.
INB is independent of INA.
This is the pin to the P-channel MOSFET drain connection. Bypass to ground through a 0.1μF capacitor.
Ground connection
Active-high input Switches between FAST (Logic H) and SLOW (Logic L) Slew rate
This is the pin to the P-channel MOSFET drain connection. Bypass to ground through a 0.1μF capacitor.
Pin Configuration
FTDFN22-8
(Top View)
INA
ENA
ENB
INB
2
1
8
OUTA
2
7
FAST
3
6
GND
4
5
OUTB
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4282A.2008.02.1.2
PRODUCT DATASHEET
AAT4282A
SmartSwitchTM
Slew Rate Controlled Load Switch
Selector Guide
Slew Rate (Typ)
Part Number
FAST (H)
AAT4282A-1*
AAT4282A-2*
AAT4282A-3
1ms
0.5μs
100μs
SLOW (L)
Active Pull-Down
Enable
1ms
NO
NO
YES
Active High
Active High
Active High
Absolute Maximum Ratings1
Symbol
Description
VIN
VEN, FAST
VOUT
IMAX
IDM
TJ
TLEAD
VESD
IN to GND
EN, FAST to GND
OUT to GND
Maximum Continuous Switch Current
Maximum Pulsed Current (Duty Cycle ≤ 10%)
Operating Junction Temperature Range
Maximum Soldering Temperature (at leads)
ESD Rating2 – HBM
Value
Units
-0.3 to 7
-0.3 to 7
-0.3 to VIN + 0.3
3
5.5
-40 to 150
300
4000
V
V
V
A
A
°C
°C
V
Value
Units
70
1.78
°C/W
W
Thermal Characteristics3
Symbol
θJA
PD
Description
Thermal Resistance
Maximum Power Dissipation
1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions other than the operating conditions
specified is not implied. Only one Absolute Maximum Rating should be applied at any one time.
2. Human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin.
3. Mounted on a AAT4282A demo board in still 25°C air.
4282A.2008.02.1.2
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3
PRODUCT DATASHEET
AAT4282A
SmartSwitchTM
Slew Rate Controlled Load Switch
Electrical Characteristics1
VIN = 5V, TA = -40 to 85°C unless otherwise noted. Typical values are at TA = 25°C. Per channel.
Symbol
Description
Conditions
AAT4282A All Versions
VIN
Operation Voltage
IQ
Quiescent Current
IQ(OFF)
Off Supply Current
ISD(OFF)
Off Switch Current
RDS(ON)
Min
Typ
1.5
ON/OFF = ACTIVE, FAST = VIN, IOUT = 0
ON/OFF = Inactive, OUT = Open
ON/OFF = GND, VOUT = 0
VIN = 6.5V
VIN = 5V
VIN = 4.2V
VIN = 3.0V
VIN = 1.80V
VIN = 1.5V
On-Resistance A or B
TCRRDS
On Resistance Temperature Coefficient
VIL
ON/OFF Input Logic Low Voltage
VIH
ON/OFF Input Logic High Voltage
ISINK
ON/OFF Input Leakage
AAT4282A-12
TD(ON)
Output Turn-On Delay Time
TON
Turn-On Rise Time
TD(OFF)
Output Turn-OFF Delay Time
AAT4282A-22
TD(ON)
Output Turn-On Delay Time
Turn-On Rise Time
TON
TD(OFF)
Output Turn-OFF Delay Time
AAT4282A-3
TD(ON)
Output Turn-On Delay Time
TON
Turn-On Rise Time
TON
Turn-On Rise Time
TD(OFF)
Output Turn-OFF Delay Time
RPD
Output Pull-Down Resistance During OFF
VIN = 1.5V
VIN = 5V
VON/OFF = 5.5V
56
60
65
76
110
140
2800
Max
Units
6.5
1.0
1.0
1.0
V
μA
μA
μA
130
140
160
230
280
mΩ
1.0
ppm/°C
V
V
μA
0.4
1.4
VIN = 5V, RLOAD =10Ω, TA =25°C
VIN = 5V, RLOAD =10Ω, TA =25°C
VIN = 5V, RLOAD =10Ω, TA =25°C
20
1000
4.0
40
1500
10
μs
μs
μs
VIN = 5V, RLOAD =10Ω, TA =25°C
VIN = 5V, RLOAD =10Ω, TA =25°C
VIN = 5V, RLOAD =10Ω, TA =25°C
0.5
0.5
4.0
2
1.0
10
μs
μs
μs
20
100
1000
4.0
150
40
150
1500
10
250
μs
μs
μs
μs
Ω
VIN = 5V, RLOAD =10Ω, TA =25°C
VIN = 5V, RLOAD =10Ω, FAST = 5V, TA =25°C
VIN = 5V, RLOAD =10Ω, FAST = 0V, TA =25°C
VIN = 5V, RLOAD =10Ω, TA =25°C
ON/OFF = Inactive, TA =25°C
1. The AAT4282A is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correlation with statistical process controls.
2. Contact factory for other turn on and delay options.
4
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4282A.2008.02.1.2
PRODUCT DATASHEET
AAT4282A
SmartSwitchTM
Slew Rate Controlled Load Switch
Typical Characteristics
VIN = 5V, TA = 25°C unless otherwise noted.
Quiescent Current vs. Temperature
Quiescent Current vs. Input Voltage
(No Load; Single Switch)
(No Load; Single Switch)
12
Quiescent Current (µA)
Quiescent Current (µA)
12
10
VIN = 5V
8
6
4
VIN = 3V
2
0
-40
10
8
6
4
2
0
-15
10
35
60
85
0
1
2
Temperature (°C)
3
4
5
6
Input Voltage (V)
Typical ON/OFF Threshold vs. Input Voltage
Off Supply Current vs. Temperature
(No Load; EN = GND; VIN = 5V)
1.3
ON/OFF Threshold (V)
Off Supply Current (µA)
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
-15
10
35
60
VIH
1.1
1
VIL
0.9
0.8
0.7
0.6
1.5
0
-40
1.2
85
2
2.5
On-Resistance vs. Temperature
4.5
5
5.5
220
90
On-Resistance (mΩ
Ω)
On-Resistance (mΩ
Ω)
4
On-Resistance vs. Input Voltage
100
VIN = 3V
70
60
50
VIN = 5V
40
30
20
10
0
-40
3.5
Input Voltage (V)
Temperature (°C)
80
3
-15
10
35
60
85
200
180
140
120
100
80
60
ISW = 100mA
40
1.5
Temperature (°C)
4282A.2008.02.1.2
ISW = 2A
160
2.5
3.5
4.5
5.5
6.5
Input Voltage (V)
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5
PRODUCT DATASHEET
AAT4282A
SmartSwitchTM
Slew Rate Controlled Load Switch
Typical Characteristics
VIN = 5V, TA = 25ºC unless otherwise noted.
Output Turn-On Delay Time
Output Turn-On Delay Time
(VINA/VENA = 5V; VINB/VENB = 3V; RLA = 10Ω
Ω; RLB = 20Ω)
VOUT
2
0
4
ENB
2
VOUT
0
6
Output Voltage Channel A
(top) (V)
Output Voltage Channel A
(top) (V)
ENA
4
ENA
VOUT
2
0
6
ENB
4
VOUT
0
Time (50µs/div)
Time (50µs/div)
Output Turn-On Delay Time
Output Turn-On Delay Time
(VIN = 5V; RL = 10Ω
Ω)
6
2
1
I IN
1
0.5
0
0
Voltage (top) (V)
VOUT
3
4
3
EN
2
Output Turn-On
(RL = 10Ω
Ω)
(VIN = 1.8V; RL = 10Ω
Ω)
3.5
EN
3
2.5
4
VOUT (FAST = GND)
2
1
Voltage (V)
Voltage (V)
5
0
VEN
2
1.5
1
VOUT (FAST = GND)
0.5
VOUT (FAST = VIN)
0
-0.5
Time (500µs/div)
6
0
Time (50µs/div)
Output Turn-On
3
0.2
IIN
0
Time (50µs/div)
6
0.4
VOUT
1
Current (bottom) (A)
4
Current (bottom) (A)
Voltage (top) (V)
(VIN = 3V; RL = 20Ω
Ω)
EN
5
7
2
Output Voltage Channel B
(bottom) (V)
4
Output Voltage Channel B
(bottom) (V)
6
(VINA/VINB/VEN = 5V; RL = 10Ω
Ω)
VOUT (FAST = VIN)
Time (200µs/div)
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4282A.2008.02.1.2
PRODUCT DATASHEET
AAT4282A
SmartSwitchTM
Slew Rate Controlled Load Switch
Typical Characteristics
VIN = 5V, TA = 25ºC unless otherwise noted.
Output Turn-Off Delay Time
Output Turn-Off Delay Time
5
1
4
0.8
IIN
3
0.6
VOUT
2
0.4
1
0
0.2
0
EN
4
IIN
3
2
0.4
VOUT
1
0.2
0
Time (5µs/div)
0
EN
Current (bottom) (A)
1.2
Voltage (top) (V)
(VIN = 3V; RL = 20Ω
Ω)
6
Current (bottom) (A)
Voltage (top) (V)
(VIN = 5V; RL = 10Ω
Ω)
Time (5µs/div)
Output Turn-Off Delay Time
Enable Voltage (top) (V)
Output Voltage (bottom) (V)
(VIN = 1.8V; RL = 10Ω
Ω)
3.5
3
2.5
2
1.5
1
VOUT
0.5
0
-0.5
VEN
Time (5µs/div)
4282A.2008.02.1.2
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7
PRODUCT DATASHEET
AAT4282A
SmartSwitchTM
Slew Rate Controlled Load Switch
Functional Block Diagram
OUTA
INA
Turn-On Slew
Rate Control
Level
Shift
*
ON/OFF A
FAST/
SLOW
OUTB
INB
Turn-On Slew
Rate Control
Level
Shift
*
ON/OFF B
GND
* AAT4282A-3 version only.
Functional Description
The AAT4282A is a family of flexible dual P-channel
MOSFET power switches designed for high-side load
switching applications. There are three versions of the
AAT4282A with different turn-on and turn-off characteristics to choose from, depending upon the specific
requirements of an application. The first version, the
AAT4282A-1, has a moderate turn-on slew rate feature,
which reduces in-rush current when the MOSFET is
turned on. This function allows the load switch to be
implemented with either a small input capacitor or no
input capacitor at all. During turn-on slewing, the current
ramps linearly until it reaches the level required for the
output load condition. The proprietary turn-on current
control method works by careful control and monitoring
of the MOSFET gate voltage. When the device is switched
ON, the gate voltage is quickly increased to the threshold
level of the MOSFET. Once at this level, the current
begins to slew as the gate voltage is slowly increased
until the MOSFET becomes fully enhanced. Once it has
8
reached this point the gate is quickly increased to the full
input voltage and the RDS(ON) is minimized.
The second version, the AAT4282A-2, is a very fast
switch intended for high-speed switching applications.
This version has no turn-on slew rate control and no
special output discharge features. The final switch version, the AAT4282A-3, has the addition of a minimized
slew rate limited turn-on function and a shutdown output
discharge circuit to rapidly turn off a load when the load
switch is disabled through the ON/OFF pin. Using the
FAST input pin on the AAT4282A-3, the device can be
manually switched to a slower slew rate.
All versions of the AAT4282A operate with input voltages
ranging from 1.5V to 6.5V. All versions of this device
have extremely low operating current, making them
ideal for battery-powered applications.
The ON/OFF control pin is TTL compatible and will also
function with 2.5V to 5V logic systems, making the
AAT4282A an ideal level-shifting load switch.
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4282A.2008.02.1.2
PRODUCT DATASHEET
AAT4282A
SmartSwitchTM
Slew Rate Controlled Load Switch
Applications Information
Input Capacitor
A 1μF or larger capacitor is typically recommended for
CIN in most applications. A CIN capacitor is not required
for basic operation; however, it is useful in preventing
load transients from affecting upstream circuits. CIN
should be located as close to the device VIN pin as practically possible. Ceramic, tantalum, or aluminum electrolytic capacitors may be selected for CIN. There is no
specific capacitor equivalent series resistance (ESR)
requirement for CIN. However, for higher current operation, ceramic capacitors are recommended for CIN due to
their inherent capability over tantalum capacitors to
withstand input current surges from low-impedance
sources, such as batteries in portable devices.
Output Capacitor
For proper slew operation, a 0.1μF capacitor or greater
is required between VOUT and GND. Likewise, with the
output capacitor, there is no specific capacitor ESR
requirement. If desired, COUT may be increased without
limit to accommodate any load transient condition without adversely affecting the slew rate.
Enable Function
The AAT4282A features an enable / disable function. This
pin (ON) is active high and is compatible with TTL or
CMOS logic. To assure the load switch will turn on, the
ON control level must be greater than 1.4V. The load
switch will go into shutdown mode when the voltage on
the ON pin falls below 0.4V. When the load switch is in
shutdown mode, the OUT pin is tri-stated, and quiescent
current drops to leakage levels below 1μA.
Reverse Output-to-Input Voltage
Conditions and Protection
Under normal operating conditions, a parasitic diode
exists between the output and input of the load switch.
The input voltage should always remain greater than the
output load voltage, maintaining a reverse bias on the
internal parasitic diode. Conditions where VOUT might
exceed VIN should be avoided since this would forward
bias the internal parasitic diode and allow excessive current flow into the VOUT pin, possibly damaging the load
switch. In applications where there is a possibility of VOUT
exceeding VIN for brief periods of time during normal
operation, the use of a larger value CIN capacitor is
highly recommended. A larger value of CIN with respect
to COUT will effect a slower CIN decay rate during shutdown, thus preventing VOUT from exceeding VIN. In applications where there is a greater danger of VOUT exceeding
VIN for extended periods of time, it is recommended to
place a Schottky diode from VIN to VOUT (connecting the
cathode to VIN and anode to VOUT). The Schottky diode
forward voltage should be less than 0.45V.
Thermal Considerations and
High Output Current Applications
The AAT4282A is designed to deliver a continuous output
load current. The limiting characteristic for maximum
safe operating output load current is package power dissipation. In order to obtain high operating currents,
careful device layout and circuit operating conditions
must be taken into account.
The following discussions will assume the load switch is
mounted on a printed circuit board utilizing the minimum recommended footprint as stated in the Printed
Circuit Board Layout Recommendations section of this
datasheet.
At any given ambient temperature (TA), the maximum
package power dissipation can be determined by the following equation:
PD(MAX) =
TJ(MAX) - TA
θJA
Constants for the AAT4282A are maximum junction temperature (TJ(MAX) = 125°C)1 and package thermal resistance (θJA = 70°C/W). Worst case conditions are calculated at the maximum operating temperature, TA =
85°C. Typical conditions are calculated under normal
ambient conditions where TA = 25°C. At TA = 85°C,
PD(MAX) = 571mW. At TA = 25°C, PD(MAX) = 1429mW.
1. The actual maximum junction temperature of AAT4282A is 150°C. However, good design practice is to derate the maximum die temperature to 125°C to prevent the possibility of over-temperature damage.
4282A.2008.02.1.2
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9
PRODUCT DATASHEET
AAT4282A
SmartSwitchTM
Slew Rate Controlled Load Switch
The maximum continuous output current for the
AAT4282A is a function of the package power dissipation
and the RDS of the MOSFET at TJ(MAX). The maximum RDS
of the MOSFET at TJ(MAX) is calculated by increasing the
maximum room temperature RDS by the RDS temperature
coefficient. The temperature coefficient (TC) is
2800ppm/°C. Therefore, at 125°C:
⎛ x ⎞ ⎛ 576μs ⎞
% Peak Duty Cycle = ⎝
100⎠ = ⎝ 4.61ms⎠
% Peak Duty Cycle = 12.5%
RDS(MAX) = RDS(25°C) · (1 + TC · ΔT)Ω
RDS(MAX) = 130mΩ · + 0.002800 · (125°C - 25°C))
RDS(MAX) = 166.4mΩ
For maximum current, refer to the following equation:
IOUT(MAX) <
and has short 3A current peaks, as in a GSM application.
The current peak occurs for 576μs out of a 4.61ms period.
First, the current duty cycle is calculated:
PD(MAX)
RDS
For example, if VIN = 5V, RDS(MAX) = 166.4mΩ, and TA =
25°C, IOUT(MAX) = 2.93A. If the output load current were
to exceed 2.93A or if the ambient temperature were to
increase, the internal die temperature would increase
and the device would be damaged. Higher peak currents
can be obtained with the AAT4282A. To accomplish this,
the device thermal resistance must be reduced by
increasing the heat sink area or by operating the load
switch in a duty cycle manner. Duty cycles with peaks
less than 2ms in duration can be considered using the
method described in the High Peak Current Applications
section of this datasheet.
The load current is 100mA for 87.5% of the 4.61ms
period and 3A for 12.5% of the period. Since the
Electrical Characteristics do not report RDS(MAX) for 4V
operation, it must be approximated by consulting the
chart of RDS(ON) vs. VIN. The RDS reported for 5V at 100mA
and 3A can be scaled by the ratio seen in the chart to
derive the RDS for 4V VIN at 25°C: 130mΩ · 63mΩ/60mΩ
= 136.5mΩ. De-rated for temperature: 136.5mΩ · (1 +
0.002800 · (125°C - 25°C)) = 174.7mΩ.
For channel A, the power dissipation for a continuous 1A
load is calculated as follows:
PD(CHA) = IOUT2 · RDS = (1A)2 · 174.7mΩ = 174.7mW
For channel B, the power dissipation for 100mA load is
calculated as follows:
PD(MAX) = IOUT2 · RDS
PD(100mA) = (100mA)2 · 174.7mΩ
PD(100mA) = 1.75mW
PD(87.5%D/C) = %DC · PD(100mA)
High Peak Output Current Applications
PD(87.5%D/C) = 0.875 · 1.75mW
Some applications require the load switch to operate at a
continuous nominal current level with short duration,
high-current peaks. Refer to the IDM specification in the
Absolute Maximum Ratings table to ensure the AAT4282A’s
maximum pulsed current rating is not exceeded. The duty
cycle for both output current levels must be taken into
account. To do so, first calculate the power dissipation at
the nominal continuous current level, and then add the
additional power dissipation due to the short duration,
high-current peak scaled by the duty factor. For example,
a 4V system using an AAT4282A which has channel A
operates at a continuous 1A load current level, and channel B operates at a continuous 100mA load current level
PD(87.5%D/C) = 1.53mW
10
The power dissipation for 100mA load at 87.5% duty
cycle is 1.53mW. Now the power dissipation for the
remaining 12.5% of the duty cycle at 3A is calculated:
PD(MAX) = IOUT2 · RDS
PD(3A) = (3A)2 · 174.7mΩ
PD(3A) = 1572mW
PD(12.5%D/C) = %DC · PD(3A)
PD(12.5%D/C) = 0.125 · 1572mW
PD(12.5%D/C) = 196.7mW
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4282A.2008.02.1.2
PRODUCT DATASHEET
AAT4282A
SmartSwitchTM
Slew Rate Controlled Load Switch
Finally, the total power dissipation for channels A and B
is determined as follows:
PD(total) = PD(CHA) + PD(100mA) + PD(3A)
PD(total) = 174.7mW + 1.53mW + 196.7mW
PD(total) = 373mW
The maximum power dissipation for the AAT4282A operating at an ambient temperature of 85°C is 373mW. The
device in this example will have a total power dissipation
of 571mW. This is well within the thermal limits for safe
operation of the device; in fact, at 85°C, the AAT4282A
will handle a 3A pulse for up to 25% duty cycle. At lower
ambient temperatures, the duty cycle can be further
increased.
Printed Circuit Board
Layout Recommendations
For proper thermal management, and to take advantage
of the low RDS(ON) of the AAT4282A, 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.
Evaluation Board Layout
The AAT4282A evaluation layout follows the printed circuit board layout recommendations and can be used for
good applications layout. Refer to Figures 1 through 2.
Note: Board layout shown is not to scale.
Figure 1: Evaluation Board Top Side Layout.
Figure 2: Evaluation Board Bottom Side Layout.
4282A.2008.02.1.2
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PRODUCT DATASHEET
AAT4282A
SmartSwitchTM
Slew Rate Controlled Load Switch
Ordering Information
Device Option
Package
Marking1
Part Number (Tape and Reel)2
AAT4282A-3
FTDFN22-8
WKXYY
AAT4282AIPS-3-T1
All AnalogicTech products are offered in Pb-free packaging. The term “Pb-free” means semiconductor
products that are in compliance with current RoHS standards, including the requirement that lead not exceed
0.1% by weight in homogeneous materials. For more information, please visit our website at
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Package Information3
FTDFN22-8
0.400 ± 0.050
Detail "A"
2.000 ± 0.050
Index Area
Bottom View
2.000 ± 0.050
Top View
+ 0.100
- 0.000
Pin 1 Identification
0.250 ± 0.050
Side View
0.450 ± 0.050
0.000
0.230 ± 0.050
0.750 ± 0.050
0.500 ± 0.050
Detail "A"
All dimensions in millimeters.
1. XYY = assembly and date code.
2. Sample stock is generally held on part numbers listed in BOLD.
3. The leadless package family, which includes QFN, TQFN, DFN, FTDFN, TDFN and STDFN, has exposed copper (unplated) at the end of the lead terminals due to the manufacturing process. A solder fillet at the exposed copper edge cannot be guaranteed and is not required to ensure a proper bottom solder connection.
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4282A.2008.02.1.2
PRODUCT DATASHEET
AAT4282A
SmartSwitchTM
Slew Rate Controlled Load Switch
Advanced Analogic Technologies, Inc.
3230 Scott Boulevard, Santa Clara, CA 95054
Phone (408) 737-4600
Fax (408) 737-4611
© Advanced Analogic Technologies, Inc.
AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AnalogicTech product. No circuit patent licenses, copyrights, mask work rights, or other intellectual
property rights are implied. AnalogicTech reserves the right to make changes to their products or specifications or to discontinue any product or service without notice. Except as provided in AnalogicTech’s terms and
conditions of sale, AnalogicTech assumes no liability whatsoever, and AnalogicTech disclaims any express or implied warranty relating to the sale and/or use of AnalogicTech products including liability or warranties
relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. In order to minimize risks associated with the customer’s applications, adequate
design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. Testing and other quality control techniques are utilized to the extent AnalogicTech deems necessary to
support this warranty. Specific testing of all parameters of each device is not necessarily performed. AnalogicTech and the AnalogicTech logo are trademarks of Advanced Analogic Technologies Incorporated. All other
brand and product names appearing in this document are registered trademarks or trademarks of their respective holders.
4282A.2008.02.1.2
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