202246B.pdf

DATA SHEET
AAT4681
20mΩ P-Channel SmartSwitch for UMPC Battery Charging Applications
General Description
Features
The AAT4681 SmartSwitch enables separate stand-alone
AC adapter and PMU USB chargers to independently control a single low RDS(ON) power MOSFET between battery
and system power output. A 20V version is available for
multi-cell Li-ion applications and a 6V version is available
for single-cell Li-ion applications.
• Multi-Cell 20V Device and Single-Cell 6V Device
• Dual Independent Gate Controls
▪ Independent Linear Regulator and SMPS Power
Switch States are Maintained
• 3mm x 3mm TDFN-10L package
• Temperature Range: -40°C to 85°C
The two P-channel power MOSFETs required in UMPC
applications for controlling independent charger ICs can
be consolidated to a single device, saving space and
reducing cost. The single 20mΩ P-channel device in the
AAT4681/-1 has four times lower RDS(ON) than the equivalent path resistance formed by two series devices.
Applications
• Smart Phones
• Sub Notebooks
▪Smartbooks
▪Netbooks
• Ultra-Mobile PCs
• Wireless Media Devices
Ordering options are available for multi-cell and singlecell Li-ion versions. For the single-cell application, a 6V
device with dual independent gate control is available.
For 2-cell and 3-cell applications a 20V ordinary P-channel
device is available in the same package and pin configuration. Both devices are available in the TDFN-10L 3mm
x 3mm package.
Typical Application
30mΩ
20mΩ
D
D
GC
Gate Control from
PMU USB Charger
GQ
D
S
VIO
G
R1
Linear/PowerSwitch Gate Control
Linear Control
Detection
S
D
S
G
Gate Control from
Stand-Alone Charger
System
Power
S
STAT
System
Power
Gate Control from
Stand-Alone Charger
Status
Output
GC
N/C
N/C
GND
AAT4681, AAT4681-1
N/C
AAT4681-2
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202246B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • September 11, 2012
1
DATA SHEET
AAT4681
20mΩ P-Channel SmartSwitch for UMPC Battery Charging Applications
Pin Descriptions
Pin Name
Pin #
AAT4681/-1
AAT4681-2
1, 2, 3
4
5
S
GQ
GC
S
N/C
GC
6
STAT
N/C
7
8, 9, 10
GND
D
N/C
D
Function
Source connection.
Gate control from PMU charger.
Gate control from stand-alone charger.
Open drain status output. “STAT” signal “high” means QC is “on” and “STAT”
signal low means GQ is “on”
Ground connection
Drain connection.
Pin Configuration
TDFN33-10L
(Top View)
AAT4681/-1
2
S
S
S
GQ
GC
1
10
2
9
3
8
4
7
5
6
D
D
D
GND
STAT
AAT4681-2
S
S
S
N/C
GC
1
10
2
9
3
8
4
7
5
6
D
D
D
N/C
N/C
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DATA SHEET
AAT4681
20mΩ P-Channel SmartSwitch for UMPC Battery Charging Applications
Absolute Maximum Ratings1
Symbol
Description
AAT4681, AAT4681-1
VD, VS
VSTAT
ISTAT
VGC, VGQ
ID
Drain or Source Voltage to GND
STAT to GND
STAT Current
Gate Voltage Levels to GND
Continuous Drain Current @ TA = 85°C
IDM
IS
AAT4681-2
VDS
VGS
AAT4681
AAT4681-1
Pulsed Drain Current2
Continuous Source Current (Source-Drain Diode)
Drain-Source Voltage
Gate-Source Voltage
ID
Continuous Drain Current
IDM
IS
Pulsed Drain Current
Continuous Source Current (Source-Drain Diode)
TA = 25°C
TA = 70°C
Value
Units
6.0
-0.3 to 6.0
10
-0.3 to 6.0
±7
±5
±10
-1.5
V
V
mA
V
A
-20
±12
±4.0
±3.2
±24
-1.5
V
V
A
A
A
A
A
A
Thermal Characteristics3
Symbol
Description
TJ
Operating Junction Temperature Range
TLEAD
Maximum Soldering Temperature (at leads, 10 sec.)
TDFN33-10L Thermal Impedance
θJA
Maximum Junction-to-Ambient Thermal Resistance
PD
Maximum Power Dissipation4
Value
Units
-40 to +125
300
°C
°C
50
2
°C/W
W
1 Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
2. Pulse width <300µs, duty cycle <1%.
3.TJ is calculated from the ambient temperature TA and power dissipation PD according to the following formula: TJ = TA + PD · θJA.
4. Thermal Resistance is specified with approximately 1 square inch of 1 oz. copper.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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DATA SHEET
AAT4681
20mΩ P-Channel SmartSwitch for UMPC Battery Charging Applications
Electrical Characteristics
TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.
Symbol
Description
AAT4681/-1
VSYS
Input Voltage Range1
VUVLO
Under-Voltage Lockout
IQ
Quiescent Current
IDSS
Drain-Source Leakage Current
RDS(on)
P-Channel On Resistance2
VHYS
tGSW
GQ-GC Transition Hysteresis
GQ-GC Transition Delay
VSTATLOW
STAT Logic Output Low
ISTAT(SINK)
STAT Logic High Leakage Current
AAT4681-2
BVDSS
Drain-Source Breakdown Voltage
RDS(ON)
Drain-Source On-Resistance2
ID(ON)
On-State Drain Current
VGS(th)
Gate Threshold Voltage
Conditions
Min
Typ
Max
Units
5.5
V
V
μA
μA
1.8
For VSYS < VUVLO, GC active
VD = 4.2V, TJ = 55°C
VGS = 0V, VDS = –5.5V, TJ = 55°C
VD = VGC = 4.2V, VGQ = GND, ID = 5A,
TA = 25°C
1.4
3.6
AAT4681
AAT4681-1
18
23
Slew rate of QG @ 1ms
ISTAT(SINK) = 1mA
VSTAT = 5.5V, VGC = 5.5V, VGQ = GND
VGS
VGS
VGS
VGS
=
=
=
=
0V, ID = -250μA
-4.5V, ID = -4.0A
-4.5V, VDS = -5V (pulse)2
VDS, ID = -250µA
15
-5
25
28
300
10
0.025
0.005
0.4
1
27
40
-20
-24
-0.8
Gate Drive
Voltage
GQ
0V
GQ – GC
GC
VHYS
1. Where VSYS is the greater of VD or VS.
2. Pulse width < 300µs, duty cycle < 1%.
4
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mΩ
mV
μs
V
μA
V
mΩ
A
V
DATA SHEET
AAT4681
20mΩ P-Channel SmartSwitch for UMPC Battery Charging Applications
AAT4681/-1 Typical Electrical Characteristics
Hysteresis, GQ Ramp Time = 2.5ms
Hysteresis, GQ Ramp Time = 500µs
(S = 5.5V; GC = 0.5V; RSTAT = 5K; VIO = 5.5V)
Voltage (100mV/div)
Voltage (100mV/div)
(S = 5.5V; GC = 0.5V; RSTAT = 5K; VIO = 5.5V)
GQ
GC
STAT
GQ
GC
STAT
Time (100µs/div)
Time (20µs/div)
Timing
Shutdown Current vs. Shutdown Voltage
(S = 5.5V; GC = 0.5V; GQ ramp time = 2.5ms;
RSTAT = 5K; VIO = 5.5V)
5
VG = 0.85V
VG = 0.90V
VG = 0.95V
VG = 1V
VG = 1.05V
VG = 1.1V
VG = 1.2V
VG = 1.5V
VG = 2V
VG = 3V
VG = 4V
VG = 5V
VG = 6V
4.5
Voltage (1V/div)
4
ISD (A)
3.5
GQ
GC
STAT
3
2.5
2
1.5
1
0.5
0
Time (1ms/div)
Normalized RDS(ON) (mΩ)
RDS(ON) (mΩ)
24
22
20
18
16
14
3.5
ISD (A)
0.4
0.5
1.80
VG = 2V
VG = 3V
VG = 4V
VG = 5V
VG = 6V
3
0.3
On-Resistance vs. Junction Temperature
26
2.5
0.2
(VS = 6V; IDS = 5A; Pulse width <300µs; Duty Cycle < 1%)
28
2
0.1
VSD (V)
RDS(ON) vs. ISD
12
0
4
4.5
5
1.60
1.40
1.20
1.00
0.80
0.60
-50
-25
0
25
50
75
100
125
150
TJ (°C)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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DATA SHEET
AAT4681
20mΩ P-Channel SmartSwitch for UMPC Battery Charging Applications
AAT4681/-1 Typical Electrical Characteristics
On-Resistance vs. Gate Voltage GC
On-Resistance vs. Gate Voltage GC
VS = 6V, VGC = 0V, IDS = 5A;
Pulse Width < 300µs, Duty Cycle < 1%)
50
50
45
45
40
40
RDS(ON) (mΩ)
RDS(ON) (mΩ)
(VS = 6V; VGQ = 0V, IDS = 5A;
Pulse Width < 300µs, Duty Cycle < 1%)
35
30
25
35
30
25
20
20
15
15
10
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
10
6
VS - VGC (V)
0
45
40
40
RDS(ON) (mΩ)
RDS(ON) (mΩ)
50
35
30
25
15
3
3.5
VS - VGC (V)
4
4.5
5
5.5
4
4.5
10
6
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
VS - VGQ (V)
6
5
5.5
6
25
20
2.5
3.5
30
15
2
3
35
20
1.5
2.5
VS = 6V, VGQ = 0V, IDS = 7A;
Pulse Width < 300µs, Duty Cycle < 1%)
45
1
2
On-Resistance vs. Gate Voltage GQ
50
0.5
1.5
VS = 6V, VGQ = 0V, IDS = 7A;
Pulse Width < 300µs, Duty Cycle < 1%)
0
1
VS - VGQ (V)
On-Resistance vs. Gate Voltage GC
10
0.5
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5.5
6
DATA SHEET
AAT4681
20mΩ P-Channel SmartSwitch for UMPC Battery Charging Applications
AAT4681-2 Typical Electrical Characteristics
Output Characteristics
Transfer Characteristics
14
9
7
-IDS (A)
6
5
4
3
2
1
0
0
0.5
1
1.5
12
10
-ID (A)
VG = -1.5V
VG = -2V
VG = -2.5V
VG = -3V
VG = -3.5V
VG = -4V
VG = -4.5V
VG = -5V
VG = -6V
VG = -7V
VG = -8V
VG = -9V
VG = -10V
8
8
6
4
125°C
25°C
-50°C
2
0
2
0
1
2
-VDS (V)
On-Resistance vs. Drain Current
0.1
0.08
RDS(ON) (Ω)
RDS(ON) (Ω)
5
0.1
0.06
0.04
0.02
0.06
0.04
0.02
0
2
4
6
0
8
0
2
4
-ID (A)
8
10
Threshold Voltage vs. Junction Temperature
(VGS = -4.5V; ID = -5.9A)
1.80
0.5
0.4
VGS(th) Variance (V)
1.60
1.40
1.20
1.00
0.80
0.60
-50
6
-VGS (V)
On-Resistance vs. Junction Temperature
Normalized RDS(ON) (mΩ)
4
On-Resistance vs. Gate-Source Voltage
VG = -2.5V
VG = -4.5V
0.08
0
3
-VGS (V)
0.3
0.2
0.1
0
-0.1
-0.2
-25
0
25
50
TJ (°C)
75
100
125
150
-0.3
-50
-25
0
25
50
75
100
125
150
TJ (°C)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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DATA SHEET
AAT4681
20mΩ P-Channel SmartSwitch for UMPC Battery Charging Applications
AAT4681-2 Typical Electrical Characteristics
Gate Charge
Source-Drain Diode Forward Voltage
100
10
10
6
IS (A)
-VGS (V)
8
4
1
2
0
0
2
4
6
8
10
12
14
16
18
-QG, Charge (nC)
20
22
24
0.1
26
TJ = 150°C
TJ = 25°C
0
0.2
0.4
0.6
0.8
VSD (V)
8
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1.0
1.2
DATA SHEET
AAT4681
20mΩ P-Channel SmartSwitch for UMPC Battery Charging Applications
Functional Block Diagram
D
S
SWB
STAT
SW
GC
GQ
S
Comp
SW
SWB
EN
S
UVLO
GND
GC
(Gate Control from
Stand-Alone Charger)
GQ
(Gate Control from
PMU USB Charger)
P-Ch Gate Voltage Control Source
Vin
Linear
0V*
0V
float
Vin
0V
Linear
0V
float
GC
GC
GQ
GC
GC
Switch to GQ when GQ > GC even if QC is not equal to zero.
*
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DATA SHEET
AAT4681
20mΩ P-Channel SmartSwitch for UMPC Battery Charging Applications
Figure 1: AAT4681IDE Evaluation Board
Top Side Layout.
U1 AAT4681IDE
SOURCE
1
S
D
10
2
S
D
9
D
8
3
GQ
GC
Figure 2: AAT4681IDE Evaluation Board
Bottom Side Layout
4
5
S
GQ
GC
GND
STAT
7
DRAIN
VIO
GND
R1
6
Stat
TDFN33-10L
Figure 3: AAT4681IDE Evaluation Board Schematic.
10
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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DATA SHEET
AAT4681
20mΩ P-Channel SmartSwitch for UMPC Battery Charging Applications
Ordering Information
Package
Marking1
Continuous Drain Current (A)
Part Number (Tape and Reel)2
TDFN33-10L
TDFN33-10L
TDFN33-10L
J8XYY
F5XYY
Y4XYY
±7.03
±5.03
±3.24
AAT4681IDE-T1
AAT4681IDE-1-T1
AAT4681IDE-2-T1
Skyworks Green™ products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of Green™, document number
SQ04-0074.
Package Information
TDFN33-10L5
3.00 ± 0.05
Pin 1 identification
R0.200
0.40 ± 0.05
2.40 ± 0.05
Top View
0.75 ± 0.05
Bottom View
0.05 ± 0.05
0.203 REF
Pin 1 dot by marking
0.500 BSC
1.70 ± 0.05
3.00 ± 0.05
0.23 ± 0.05
Side View
All dimensions in millimeters.
1. XYY = assembly and date code.
2. Sample stock is generally held on part numbers listed in BOLD.
3.TA = 85°C.
4.TA = 70°C.
5. The leadless package family, which includes QFN, TQFN, DFN, 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.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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11
DATA SHEET
AAT4681
20mΩ P-Channel SmartSwitch for UMPC Battery Charging Applications
Copyright © 2012 Skyworks Solutions, Inc. All Rights Reserved.
Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a
service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no
responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes.
No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale.
THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR
PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES
NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM
THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper
use or sale.
Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product
design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters.
Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for
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