AAT7157
20V P-Channel Power MOSFET
7157.2005.05.1.1
1
TrenchDMOS
TM
General Description
The AAT7157 low threshold 20V, dual P-channel
MOSFET is a member of AnalogicTech's
TrenchDMOS product family. Using an ultra-high
density proprietary TrenchDMOS technology, the
AAT7157 is designed for use as a load switch in
battery-powered applications and protection in bat-
tery packs.
Applications
Battery Packs
Battery-Powered Portable Equipment
Features
V
DS(MAX)
= -20V
I
D(MAX)
1
= -5.8A @ 25C
Low R
DS(ON)
:
36m
@ V
GS
= -4.5V
62m
@ V
GS
= -2.5V
Dual SOP-8L Package
D1
D1
D2
D2
S1
G1
S2
G2
Top View
1
2
3
4
8
7
6
5
Absolute Maximum Ratings
T
A
= 25C, unless otherwise noted.
Thermal Characteristics
Symbol
Description
Value
Units
R
JA
Typical Junction-to-Ambient Steady State
1
100
R
JA2
Maximum Junction-to-Ambient t<10 Seconds
1
62.5
C/W
R
JF
Typical Junction-to-Foot
1
35
Symbol
Description
Value
Units
V
DS
Drain-Source Voltage
-20
V
V
GS
Gate-Source Voltage
12
I
D
Continuous Drain Current @ T
J
= 150C
1
T
A
= 25C
5.8
T
A
= 70C
4.6
A
I
DM
Pulsed Drain Current
2
24
I
S
Continuous Source Current (Source-Drain Diode)
1
-1.5
P
D
Maximum Power Dissipation
1
T
A
= 25C
2.0
W
T
A
= 70C
1.25
T
J
, T
STG
Operating Junction and Storage Temperature Range
-55 to 150
C
1. Based on thermal dissipation from junction to ambient while mounted on a 1" x 1" PCB with optimized layout. A 10-second pulse on a
1" x 1" PCB approximates testing a device mounted on a large multi-layer PCB as in most applications. R
JF
+ R
FA
= R
JA
where the
foot thermal reference is defined as the normal solder mounting surface of the device's leads. R
JF
is guaranteed by design; however,
R
CA
is determined by the PCB design. Actual maximum continuous current is limited by the application's design.
2. Pulse test: Pulse Width = 300s.
AAT7157
20V P-Channel Power MOSFET
2
7157.2005.05.1.1
Electrical Characteristics
T
J
= 25C, unless otherwise noted.
Symbol Description
Conditions
Min Typ
Max
Units
DC Characteristics
BV
DSS
Drain-Source Breakdown
V
GS
= 0V, I
D
= -250A
-20
V
Voltage
R
DS(ON)
Drain-Source
V
GS
= -4.5V, I
D
= -5.8A
29
36
m
On-Resistance
1
V
GS
= -2.5V, I
D
= -4.4A
49
62
I
D(ON)
On-State Drain Current
1
V
GS
= -4.5V, V
DS
= 5V (Pulsed)
-24
A
V
GS(th)
Gate Threshold Voltage
V
GS
= V
DS
, I
D
= -250A
-0.6
V
I
GSS
Gate-Body Leakage Current V
GS
= 12V, V
DS
= 0V
100
nA
I
DSS
Drain Source Leakage
V
GS
= 0V, V
DS
= -20V
-1
A
Current
V
GS
= 0V, V
DS
= -16V, T
J
= 70C
2
-5
g
fs
Forward Transconductance
1
V
DS
= -5V, I
D
= -5.8A
12
S
Dynamic Characteristics
2
Q
G
Total Gate Charge
V
DS
= -15V, R
D
= 2.6
, V
GS
= -4.5V
14
Q
GS
Gate-Source Charge
V
DS
= -15V, R
D
= 2.6
, V
GS
= -4.5V
2.3
nC
Q
GD
Gate-Drain Charge
V
DS
= -15V, R
D
= 2.6
, V
GS
= -4.5V
5.5
t
D(ON)
Turn-On Delay
V
DS
= -15V, R
D
= 2.6
, V
GS
= -4.5V, R
G
= 6
10
t
R
Turn-On Rise Time
V
DS
= -15V, R
D
= 2.6
, V
GS
= -4.5V, R
G
= 6
37
ns
t
D(OFF)
Turn-Off Delay
V
DS
= -15V, R
D
= 2.6
, V
GS
= -4.5V, R
G
= 6
36
t
F
Turn-Off Fall Time
V
DS
= -15V, R
D
= 2.6
, V
GS
= -4.5V, R
G
= 6
52
Source-Drain Diode Characteristics
V
SD
Source-Drain Forward
V
GS
= 0, I
S
= -5.8A
-1.5
V
Voltage
1
I
S
Continuous Diode Current
3
-1.5
A
1. Pulse test: Pulse Width = 300s.
2. Guaranteed by design. Not subject to production testing.
3. Based on thermal dissipation from junction to ambient while mounted on a 1" x 1" PCB with optimized layout. A 10-second pulse on a
1" x 1" PCB approximates testing a device mounted on a large multi-layer PCB as in most applications. R
JF
+ R
FA
= R
JA
where the
foot thermal reference is defined as the normal solder mounting surface of the device's leads. R
JF
is guaranteed by design; however,
R
CA
is determined by the PCB design. Actual maximum continuous current is limited by the application's design.
AAT7157
20V P-Channel Power MOSFET
7157.2005.05.1.1
3
Typical Characteristics
T
J
= 25C, unless otherwise noted.
Threshold Voltage
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-50
-25
0
25
50
75
100
125
150
T
J
(
C)
V
GS(th)
Variance (V)
I
D
= 250
A
On-Resistance vs. Junction Temperature
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
-50
-25
0
25
50
75
100
125
150
T
J
(
C)
Normalized R
DS(ON)
V
GS
= 4.5V
I
D
= 6.5A
On-Resistance vs. Gate-to-Source Voltage
0
20
40
60
80
100
120
0
1
2
3
4
5
V
GS
(V)
R
DS(ON)
(m
)
I
D
= 5.8A
On-Resistance vs. Drain Current
0
10
20
30
40
50
60
70
0
4
8
12
16
20
24
I
D
(A)
R
DS(ON)
(m
)
V
GS
= 4.5V
V
GS
= 2.5V
Transfer Characteristics
0
6
12
18
24
0
1
2
3
4
5
V
GS
(V)
I
D
(A)
V
D
= V
G
25
C
-55
C
125
C
Output Characteristics
0
6
12
18
24
0
0.5
1
1.5
2
2.5
3
V
DS
(V)
I
DS
(A)
1.5V
2V
2.5V
5V
4.5V
4V
3V
3.5V
AAT7157
20V P-Channel Power MOSFET
4
7157.2005.05.1.1
Typical Characteristics
T
J
= 25C, unless otherwise noted.
Capacitance
0
400
800
1200
1600
2000
0
5
10
15
20
V
DS
(V)
Capacitance (pF)
C
iss
C
oss
C
rss
Source-Drain Diode Forward Voltage
0.1
1
10
100
0
0.2
0.4
0.6
0.8
1
1.2
V
SD
(V)
I
S
(A)
T
J
= 150
C
T
J
= 25
C
Gate Charge
0
1
2
3
4
5
0
2
4
6
8
10
12
14
16
Q
G
, Charge (nC)
V
GS
(V)
V
D
= 15V
I
D
= 5.8A
Ordering Information
Package Information
SOP-8
All dimensions in millimeters.
0.175
0.075
6.00
0.20
3.90
0.10
1.55
0.20
1.27 BSC
0.42
0.09
8
4.90
0.10
4
4
45
0.375
0.125
0.235
0.045
0.825
0.445
Package
Marking
Part Number (Tape and Reel)
1
SOP-8
7157
AAT7157IAS-T1
AAT7157
20V P-Channel Power MOSFET
7157.2005.05.1.1
5
1. Sample stock is generally held on all part numbers listed in BOLD.
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