AAT AAT4626IAS-T1 Usb dual-channel power switch Datasheet

AAT4626
USB Dual-Channel Power Switch
SmartSwitch™
General Description
Features
The AAT4626 SmartSwitch is part of AnalogicTech's
Application Specific Power MOSFET™ (ASPM™)
product family. It is a dual-channel 500mA currentlimited 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 AAT4626 is also protected from thermal overload which limits power dissipation and junction
temperatures. The current limit threshold is factory
programmed at 1.0A, with a maximum of 1.5A. The
quiescent supply current is typically a low 20µA. In
shutdown mode, the supply current decreases to
less than 1µA.
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The AAT4626 is available in a Pb-free, 8-pin SOP
or TSSOP package and is specified over the -40°C
to +85°C temperature range.
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
90mΩ Typical RDS(ON)
Low Quiescent Current:
— Typically 20µA
— 1µA Max with Switches Off
Thermal Shutdown
Slew Rate Limited Turn On
Fault Flag with 2ms Blanking
Under-Voltage Lockout
Temperature Range: -40°C to +85°C
UL Approved—File No. E217765
8-Pin SOP or TSSOP Package
Applications
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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).
General-Purpose Power Switching
Hot Swap Supplies
Notebook Computers
USB Ports and Peripherals
UL Recognized Component
Typical Application
100kΩ
100kΩ
VCC 5.0V
7
ENA
(ENA)
ENB
0.1μF
(ENB)
1
4
IN
ENA
(ENA)
FLGA
AAT4626
OUTA
ENB
(ENB)
FLGB
GND
OUTB
2
3
OUTPUTA
8
OUTPUTB
5
6
47μF
GND
4626.2006.05.1.2
47μF
GND
1
AAT4626
USB Dual-Channel Power Switch
Pin Descriptions
Pin #
Symbol
Function
1/4
EN(A/B)
(EN(A/B))
Enable inputs: logic-compatible enable input. High input > 2.1V typical. Low
input < 1.9V typical. Active high or active low option available; see Ordering
Information for details.
2/3
FLG(A/B)
Fault flag outputs: active-low, open-drain output. Indicates over-current,
UVLO, and thermal shutdown.
6
GND
7
IN
8/5
OUT(A/B)
Ground connection.
Supply input: this pin is the source connection for the P-channel MOSFETs.
Also supplies the IC's internal circuitry.
Switch outputs: these pins are the P-channel MOSFET drain connection.
Pin Configuration
SOP-8
(Top View)
OUTA
7
3
4
FLGA
2
FLGB
ENB (ENB)
2
1
1
8
ENA (ENA)
2
TSSOP-8
(Top View)
ENA (ENA)
1
8
OUTA
IN
FLGA
2
7
IN
6
GND
FLGB
3
6
GND
5
OUTB
ENB (ENB)
4
5
OUTB
4626.2006.05.1.2
AAT4626
USB Dual-Channel Power Switch
Absolute Maximum Ratings1
TA = 25°C, unless otherwise noted.
Symbol
VIN
VFLG
IFLG
VOUT
IOUT
VEN
TS
TLEAD
Description
IN to GND
FLGA, FLGB to GND
FLGA, FLGB Current
OUTA, OUTB to GND
Output Current
EN (EN) to GND
Storage Temperature
Maximum Soldering Temperature (at Leads)
Value
Units
-0.3 to 6
-0.3 to 6
50
-0.3 to VIN+0.3
Internally Limited
-0.3 to 6
150
300
V
V
mA
V
A
V
°C
°C
Thermal Information2
Symbol
ΘJA
PD
Description
Maximum Thermal Resistance (SOP-8)
Maximum Power Dissipation (SOP-8)
Value
Units
100
1.25
°C/W
W
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. Mounted on an FR4 printed circuit board with 1oz. copper ground plane.
4626.2006.05.1.2
3
AAT4626
USB Dual-Channel Power Switch
Electrical Characteristics
VIN = 5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C; bold values designate full temperature range.
Symbol
IQ
VIN-THRSH
IEN
CEN
RDS(ON)
TON
TON-RISE
TOFF
TOFF-FALL
ISD(OFF)
ILIMIT
4
Description
Conditions
Quiescent Current
VIN = 5V, ENA and ENB Active
Low-to-High Transition
High-to-Low Transition
VEN = 0V to 5.5V
Enable Input Threshold
Enable Input Current
Enable Input Capacitance
On-Resistance
Output Turn-On Delay
Output Turn-On Rise Time
Output Turn-Off Delay
Output Turn-Off Fall Time
Output Leakage Current
Current Limit Threshold
OTMP
Over-Temperature Shutdown
RFLG
ISINK
VUVLO
TBLANK
Error Flag Output Resistance
Error Flag Off Current
Under-Voltage Lockout
Fault Blanking
VIN = 5V, Each Switch, TA = 25°C
VIN =3.0V, Each Switch, TA = 25°C
VIN = 5V, RL = 10Ω
RL = 10Ω
VIN = 5V, RL = 10Ω
RL = 10Ω
EN = Inactive, VIN = 5.5V, VOUT = 0V
Ramped Load Applied to Enable
Output, VOUT < 4.0V
TJ Increasing
TJ Decreasing
VIN = 5V, IL = 1mA
VFLG = 5.5V
VIN = Increasing, 1% Hysteresis
Min
Typ
Max
Units
20
40
2.4
µA
1
µA
pF
0.8
0.01
1
90
100
0.25
0.2
5
0.75
2.0
130
150
V
mΩ
0.03
20
20
1
ms
ms
µs
µs
µA
1.0
1.50
A
125
115
30
0.05
2.3
2
°C
1
2.7
Ω
µA
V
ms
4626.2006.05.1.2
AAT4626
USB Dual-Channel Power Switch
Typical Characteristics
Unless otherwise noted, VIN = 5V, TA = 25°C.
Quiescent Current
25
30
Input Current (μA)
Quiescent Current (μA)
Quiescent Current vs. Temperature
25
20
15
10
5
20
2 channels enabled
15
10
0
1 channel enabled
5
0
-40
-20
0
20
40
60
80
100
120
0
1
2
Temperature (°C)
5
6
1.0000
Off-Switch Current (μA)
1.4
Output Current (A)
4
Off-Supply Current vs. Temperature
Current Limit
1.2
1
0.8
0.6
0.4
0.2
0.1000
0.0100
0.0010
0
0
1
2
3
4
-40
5
-20
0
20
40
60
80
100
120
100
120
Temperature (°C)
Output Voltage (V)
RDS(ON) vs. Temperature
Off-Switch Current vs. Temperature
140.0
1.0000
(Both switches)
130.0
0.1000
RDS(ON) (mΩ)
Off-Switch Current (μA)
3
Input Voltage (V)
0.0100
0.0010
120.0
110.0
VIN = 3V
100.0
VIN = 5V
90.0
80.0
70.0
0.0001
60.0
-40
0.0000
-40
-20
0
20
40
60
80
100
120
-20
0
20
40
60
80
Temperature (°C)
Temperature (°C)
4626.2006.05.1.2
5
AAT4626
USB Dual-Channel Power Switch
Typical Characteristics
Unless otherwise noted, VIN = 5V, TA = 25°C.
Turn-On/Off Response with
10Ω, 1μF Load
Start Into 1Ω Load
EN (5V/div)
EN (5V/div)
FAULT (5V/div)
FAULT (5V/div)
VOUT (1V/div)
VOUT (1V/div)
IIN (500mA/div)
IIN (500mA/div)
Time (200μs/div)
Time (100μs/div)
Thermal Shutdown Response
Short Circuit Through 0.3Ω
8
FAULT (5V/div)
VOUT (1V/div)
IIN (500mA/div)
12
Input Voltage
6
4
8
4
Output Current
2
Output (A)
Input and Output (V)
EN (5V/div)
0
Output Voltage
0
-4
-1
0
1
2
3
4
5
Time (μs)
Time (100ms/div)
6
4
2
Input Voltage
6
Output Current
3
0
Output Voltage
Output (A)
Input and Output (V)
Short Circuit Through 0.6Ω
-3
0
-1
0
1
2
3
4
5
Time (μs)
6
4626.2006.05.1.2
AAT4626
USB Dual-Channel Power Switch
Functional Block Diagram
OUTA
IN
OverTemperature
Protection
OUTB
UnderVoltage
Lockout
ENB (ENB)
ENA (ENA)
1.2V
Reference
Current
Limit
Over-Temp Protection
Under-Voltage Lockout
FLGA
Current Limit
Over-Temp Protection
Under-Voltage Lockout
FLGB
Current Limit
Functional Description
The AAT4626 is a dual integrated MOSFET load
switch with a fixed level current limit, over-temperature protection, level shifted inputs, and a fault
flag for each switch. The current limit control is
combined with an over-temperature thermal limit
circuit to provide a comprehensive system to protect the load switch under short-circuit or other
adverse operating conditions. The AAT4626 is ideally suited for control and protection of peripheral
ports such as USB, RS232, and parallel ports.
The current limit and over-temperature circuits will
act independently. The device current limit is activated when the output load current exceeds a preset internal threshold level. The minimum current
limit threshold characteristic is specified by ILIM(MIN).
If the load switch ambient temperature becomes
excessive or if a short-circuit condition persists, the
die temperature will rise, causing the over-temperature protection circuit to activate.
If the current limit or over-temperature protection
circuits are active for more than ten milliseconds,
4626.2006.05.1.2
the system will be informed via the FAULT flag.
The ten millisecond fault blanking delay allows the
AAT4626 to be turned on into large capacitive
loads without activating the FAULT flags. The
open drain FAULT outputs can be connected
directly to system controllers driven by voltage levels less than the IN pin voltage without additional
level shifting circuitry.
Each of the two load switches is turned on and off
by applying a logic level signal to the EN(A/B) pin.
The AAT4626 enable function is available in both
active high and active low logic level versions. The
AAT4626 typically consumes 20µA when operating; when off, the device draws less than 1µA. In
the off state, current is prevented from flowing
between the input and output on each respective
channel. The EN(A/B) function has logic level
thresholds that allow the AAT4626 to be TTL compatible and may also be controlled by 2.5V to 5.0V
CMOS circuits. The voltage level on either
EN(A/B) or FAULT(A/B) should not exceed the
input supply level present on the IN pin.
7
AAT4626
USB Dual-Channel Power Switch
Applications Information
Operation in Current Limit
If an excessive load is applied to either output of an
AAT4626, the load current will be limited by the
device's current limit circuitry. Refer to the "Current
Limit" curve in the Typical Characteristics section of
this datasheet. If a short circuit were to occur on the
load applied to either the A or B output, there would
be a demand for more current than what is allowed by
the internal current limiting circuit and the voltage at
the device output will drop. This causes the AAT4626
to dissipate more power than in normal operation,
causing the die temperature to increase. When die
temperature exceeds the internal over-temperature
threshold, the AAT4626 will shut down both the A and
B output channels. After shutting down, the AAT4626
cools to a level below the over-temperature threshold, at which point it will start up again. The AAT4626
will continue to cycle off and on until one of the following events occurs: the load current of the offending output is reduced to a level below the AAT4626's
current limit setting; the input power is removed; or
the output is turned off by a logic high level applied to
the EN pin of the fault channel.
Thermal Considerations
Since the AAT4626 has internal current limit and
over-temperature protection, junction temperature
is rarely a concern. If an application requires a
large load current in a high temperature operating
environment, there is the possibility that the overtemperature protection circuit rather than the current limit circuit from one of the two outputs will regulate the current available to the load. In these
applications, the maximum current available without risk of activation of the over-temperature circuit
can be calculated. The maximum internal temperature while current limit is not active can be calculated using Equation 1:
Eq. 1:
TJ(MAX) = IMAX2 · RDS(ON)(MAX) · RΘJA + TA(MAX)
In Equation 1, IMAX is the maximum current
required by the load. RDS(ON)(MAX) is the maximum
rated RDS(ON) of the AAT4626 at high temperature.
RθJA is the thermal resistance between the device
8
die and the board onto which it is mounted. TA(MAX)
is the maximum ambient temperature for the printed circuit board assembly under the AAT4626
when the load switch is not dissipating power.
Equation 1 can be transformed to provide IMAX;
Refer to Equation 2.
Eq. 2:
IMAX =
TSD(MIN) - TA(MAX)
RDS(ON)(MAX) · RΘJA
TSD(MIN) is the minimum temperature required to
activate the device over-temperature protection.
The typical thermal limit temperature specification
is 125°C for the AAT4626. For calculations, 115°C
is a safe minimum value to use.
For example, a portable device is specified to operate in a 50°C environment. The printed circuit board
assembly will operate at temperatures as high as
85°C. This portable device has a sealed case and
the area of the printed board assembly is relatively
small, causing RθJA to be approximately 100°C/W.
RDS(ON)(MAX) = 130W. Using Equation 2,
115°C - 85°C
Eq. 3: IMAX = 130W · 120°C/W = 1.25A
If this system requires less than 1.4A, the thermal
limit will not activate during normal operation.
Input Capacitor
The input capacitor serves two purposes. First, it
protects the source power supply from transient
current effects generated by the application load circuits. If a short circuit is suddenly applied to either
output of an AAT4626, there is a microsecond long
period during which a large current can flow before
the current limit circuit becomes active. Refer to the
Typical Characteristics curve "Short Circuit Through
0.3Ω." A properly sized input capacitor can dramatically reduce the load switch input transient
response effects seen by the power supply and
other circuitry upstream from the AAT4626.
The second purpose of the input capacitor is to prevent transient events generated by the load circuits
4626.2006.05.1.2
AAT4626
USB Dual-Channel Power Switch
from effecting the operation of the AAT4626. For
example, if an AAT4626 is used in a circuit that operates from a 5V power supply with poor step load
response, it is possible that turning on the load
switch could cause the input power supply to droop
below the AAT4626's under-voltage lockout threshold. This drop in voltage would cause the AAT4626
to turn off until the input power supply voltage levels
recover. Since this cycle would be self-perpetuating,
the entire circuit could be seen to be unstable. In the
very rare case where capacitor cost is prohibitive
and the input capacitor is omitted, the output load circuit should be slew rate limited when turned on.
Output Capacitor
In order to insure stability while the device current
limit is active, a small capacitance of approximately
1µF should be used on each output. When either
output of the AAT4626 is activated using the
EN(A/B) function, there are no momentary current
transients, as in the case when a short circuit is suddenly applied to a device that is already on. Refer to
the Typical Characteristics curve "Turn-On/Off
Response." Regardless of output capacitor size,
output current on either output is limited to the value
allowed by the threshold determined by the internal
current limiting circuitry. Refer to the internal current
limit threshold specifications stated in the Electrical
Characteristics section of this datasheet. This permits very large output capacitors to be used.
For example, USB ports are specified to have at
least 120µF of downstream capacitance from their
controlling power switch. An output capacitance as
large as 1000µF would not disturb the input power
supply to an AAT4626 used to control a USB port.
EN Inputs
The AAT4626 has two enable inputs, ENA and
ENB. These two enable inputs allow the AAT4626
to independently control each respective output.
The device is available in both active high EN
enable and active low (EN) enable versions. For
specific part numbers, refer to the ordering information section. When both the A and B outputs of the
AAT4626 are in the off state, the respective outputs
are an open circuit and the device quiescent current
consumption is reduced to less than 1µA. The ENA
and ENB threshold voltages are set to allow the
AAT4626 to be controlled by 5V TTL levels, as well
4626.2006.05.1.2
as CMOS-compatible levels ranging from 2.5V to
5V. The ENA or ENB function control voltage levels
should not exceed the input supply level applied to
the IN pin.
Fault Flag Output
The AAT4626 features an active low fault flag
(FLGA and FLGB) output for each A and B output
channel. The fault flags are provided to alert the
system if the over-current or over-temperature circuits become active, or if the load switch is not
receiving a sufficient voltage level to properly operate. If either the current limit or over-temperature
circuits in any combination are constantly active for
more than approximately ten milliseconds, the
FLG(A/B) pin is pulled to ground internally through
an open drain device. The 10ms delay on the fault
function is intended to prevent capacitive loads connected to one of the load switch outputs from activating its respective flag when the device is turned
on. The placement of a pull-up resistor between the
FLGA or FLGB pin and the IN pin is recommended.
Reasonable values for the pull-up resistor should
range from 10kΩ to 100kΩ. Since the fault flags are
open drain terminals, they may be pulled up to any
voltage that is not greater than the level present on
the IN pin. This is done to allow the AAT4626 to signal ancillary circuitry that is powered by voltage levels less than the level on the IN pin.
If a fault flag delay greater than 10ms is required,
addition delay may be added by use of an RC filter.
As shown in Figure 1, an RC filter can be added to
the fault flag output.
Reverse Voltage
The AAT4626 is designed to control current flowing
from IN to OUT. If a voltage is applied to OUT which
is greater than that on IN, a large resulting reverse
current may flow, potentially damaging the AAT4626.
Under-Voltage Lockout
The AAT4626 has been designed with an under-voltage lockout control circuit. The under-voltage lockout prevents the output MOSFET devices from turning on until VIN exceeds the typical UVLO threshold
of 2.3V. During operation, the device will automatically shut down if VIN falls below the UVLO threshold
and the fault flags will be toggled.
9
AAT4626
USB Dual-Channel Power Switch
V+
100kΩ
USB Controller
R1
10kΩ
Over-Current
Flag Input
1
2
3
C1
0.1μF
4
AAT4626
ENA OUTA
FLGA
IN
FLGB GND
ENB OUTB
8
7
6
5
Figure 1: Fault Flag Delay RC Filter.
Hot-Plug Applications
ramping fashion and regulate the inrush current
within the specified current limit for the device. The
error flag usually will not be affected during application turn-on since the 10ms fault flag blanking
time is intended for these types of events. If an
application turn-on current surge exceeds 10ms,
an RC delay filter may be added to the flag output
to prevent the system from receiving an error during the start-up sequence.
Application circuit cards with a high inrush current
potential can be limited by use of the AAT4626.
The AAT4626 has both slew rate limited turn on
characteristics and current limit controlled outputs,
which make it ideally suited for power port hot-plug
applications. A host power back plane or hot-plug
receptacle may be sensitive to short duration, high
power surges. The AAT4626 will turn on in a linear
Cable / Connector
to Hot-Plug Port
VBUS
AAT4626
V+
1
2
Hot-Plug
Receptacle
CIN
4.7μF
3
4
ENA
OUTA
FLGA
IN
FLGB
GND
ENB
OUTB
0.1μF
Card
Application
Circuit A
8
7
6
5
CBULKA
(120μF)
CBULKB
(120μF)
GND
GND
Card
Application
Circuit B
Dual Channel
Inrush Current Protected
Application Card
Figure 2: AAT4626 Input Inrush Current Protected Dual Output Application.
10
4626.2006.05.1.2
AAT4626
USB Dual-Channel Power Switch
PCB Layout Information
2. Make component solder pads large to minimize contact resistance.
3. The AAT4626 output bulk capacitors and ferrite
beads should be placed as close to the device
as possible. PCB traces to the output connector should be kept as short as possible to minimized trace resistance and the associated
voltage drop (I2R loss).
4. If ferrite beads are used in the circuit, select ferrite beads with a minimum series resistance.
5. The use of PCB trace vias should be avoided
on all traces that conduct high currents. If vias
are necessary, make the vias as large as possible and use multiple vias connected in parallel to minimize their effect.
In order to obtain the maximum performance from
the AAT4626, very careful attention must be considered in regard to the printed circuit board layout.
In most port power switch and port protection applications, high voltage and current transient events
will occur. Proper PCB layout can help reduce the
effects of transient events. PCB trace resistance
will effect overall circuit transient response; small
voltage drops will also be incurred.
Refer to the following guidelines for power port
PCB layout:
1. PCB traces should be kept as short and direct
as possible to minimize the effects of the PCB
on circuit performance.
Trace Resistance
0.01Ω
(5mV)
V+
Input
Power Supply
4.50V to 5.25V
CBULK
P-Channel MOSFET
Switch On Resistance
0.09Ω
(45mV)
IN
0.1μF
OUTA
Ferrite Bead
and PCB Trace
Resistance
0.02Ω
(10mV)
VBUS
CBULK
AAT4626
Ch. A
Cable, Connector
and Contact
Resistance
0.03Ω
(15mV)
0.1μF
GND
GND
GND
(5mV)
(10mV)
Downstream
Peripheral Port
500mA Max.
Load Current
(15mV)
Total Voltage Drop = 75mV
Figure 3: Summary of Typical Circuit Voltage Drops Caused by
AAT4626 Circuit Components and PCB Trace Resistance.
Evaluation Board Layout
The AAT4626 evaluation layout follows the recommend printed circuit board layout procedures and
can be used as an example for good application
4626.2006.05.1.2
layouts. (See Figures 4, 5, and 6.) Note that ferrite beads are not used on this simple device evaluation board. The board layout shown is not to
scale.
11
AAT4626
USB Dual-Channel Power Switch
Figure 4: Evaluation Board
Component Side Layout.
Figure 5: Evaluation Board
Solder Side Layout.
Figure 6: Evaluation Board
Top Side Silk Screen Layout /
Assembly Drawing.
Application Circuits
Ferrite Beads
7
VBUS = 5.0V
OUTA
8
AAT4626
CIN
0.1μF
R1
100kΩ
IN
VBUS(A)
COUT1
0.1μF
R2
100kΩ
D+
COUT2
120μF
DGND
USB Controller
On/Off A
Error Flag A
Error Flag B
On/Off B
1
2
3
4
ENA
DATA
(Port A)
FLGA
FLGB
Ferrite Beads
ENB
OUTB
6
5
VBUS(B)
COUT3
0.1μF
D+
COUT4
120μF
DGND
DATA
(Port B)
Figure 7: Typical Dual USB Host Port Application.
12
4626.2006.05.1.2
AAT4626
USB Dual-Channel Power Switch
VCC
+5.0V
100kΩ
4.50V to 5.25V
Upstream V BUS
100mA Maximum
AAT3200-3.3
VBUS
IN
3.3V USB Controller
VIN
OUT
GND
D+
D-
0.1μF
100kΩ
1μF
1μF
ON/OFF A
FLGA
IN
Over Current B
FLGB
GND
ENB
Ferrite Beads
USB Port A
VBUS(A)
OUTA
Over Current A
ON/OFF B
GND
GND
AAT4626
ENA
120μF
D+
0.1μF
D-
OUTB
GND
Data
Ferrite Beads
USB Port B
VBUS(B)
120μF
D+
0.1μF
DGND
Data A/B
(Two Pair to
USB Controller)
Figure 8: Self-Powered Dual Port USB Hub.
100kΩ
4.50V to 5.25V
Upstream V BUS
100mA Maximum
VBUS
AAT3200-3.3
IN
3.3V USB Controller
VIN
OUT
GND
D+
D-
0.1μF
100kΩ
1μF
1μF
ON/OFF A
FLGA
IN
Over Current B
FLGB
GND
ENB
Ferrite Beads
VBUS(A)
OUTA
Over Current A
ON/OFF B
USB Port A
AAT4626
ENA
120μF
0.1μF
OUTB
GND
GND
D+
DGND
Data A
USB Port B
Data
Ferrite Beads
VBUS(B)
120μF
0.1μF
D+
DGND
Data B
Figure 9: USB Bus Powered Dual Port USB Hub.
4626.2006.05.1.2
13
AAT4626
USB Dual-Channel Power Switch
Ordering Information
Package
Enable
Marking
Part Number (Tape and Reel)1
SOP8
EN (Active-high)
4626-1
AAT4626IAS-1-T1
SOP8
EN (Active-low)
4626
AAT4626IAS-T1
TSSOP8
EN (Active-high)
4626-1
AAT4626IHS-1-T1
TSSOP8
EN (Active-low)
4626
AAT4626IHS-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 http://www.analogictech.com/pbfree.
Package Information
6.00 ± 0.20
3.90 ± 0.10
SOP-8
4.90 ± 0.10
0.42 ± 0.09 × 8
1.27 BSC
45°
4° ± 4°
0.175 ± 0.075
1.55 ± 0.20
0.375 ± 0.125
0.235 ± 0.045
0.825 ± 0.445
All dimensions in millimeters.
1. Sample stock is generally held on part numbers listed in BOLD.
14
4626.2006.05.1.2
AAT4626
USB Dual-Channel Power Switch
6.40 ± 0.20
4.40 ± 0.10
TSSOP-8
12° REF × 4
3.00 ± 0.10
1.05 MAX
0.245 ± 0.055 × 8
1.20 MAX
0.65 BSC
0.145 ± 0.055
4° ± 4°
0.60 ± 0.15
0.10 ± 0.05
DETAIL A
12°
1.00
REF
All dimensions in millimeters.
© 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.
Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. AnalogicTech
warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with AnalogicTech’s standard warranty. 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.
Advanced Analogic Technologies, Inc.
830 E. Arques Avenue, Sunnyvale, CA 94085
Phone (408) 737-4600
Fax (408) 737-4611
4626.2006.05.1.2
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