AP22811
SINGLE CHANNEL POWER DISTRIBUTION LOAD SWITCH
Description
The AP22811 is a single channel current-limited integrated high-side
power switch optimized for Universal Serial Bus (USB) and other
hot-swap applications. The family of devices complies with
USB standards and is available with both polarities of Enable input.
The device has fast short-circuit response time for improved overall
system robustness, and has an integrated output discharge function
to ensure completely controlled discharging of the output voltage
capacitor. They provide a complete protection solution for applications
subject to heavy capacitive loads and the prospect of short circuit,
and offer reverse current blocking, over-current, over-temperature
and short-circuit protection, as well as controlled rise time and
under-voltage lockout functionality. A 6ms deglitch capability on the
open-drain Flag output prevents false over-current reporting and does
not require any external components.
The AP22811 is available in a standard Green SOT25 and MSOP-8
packages with RoHS compliant.
Pin Assignments
(Top View)
OUT
GND
FLG
1
2
3
5
IN
NEW PRODUCT
4 EN/EN
SOT25
(Top View)
GND
IN
IN
EN/EN
1
2
3
4
8
7
6
5
OUT
OUT
OUT
FLG
Features
Input Voltage Range: 2.7V to 5.5V
50mΩ On-resistance
Built-in Soft-start with 0.6ms Typical Rise Time
Fault Report (FLG) with Blanking Time (6ms Typ.)
ESD Protection: 2kV HBM, 200V MM
Active Low (B) or Active High (A) Enable
Protection
Over Current with Auto Recovery
Short Circuit with Auto Recovery
Over Temperature with Auto Recovery
Output Reverse Current / Voltage Protection
Thermally Efficient Low Profile Package
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
UL Recognized, File Number E322375
IEC60950-1 CB Scheme Certified
MSOP-8
Applications
Integrated Load Switches in Ultrabook PC’s
Power Up/Down Sequencing in Ultrabook PC’s
Notebook
Netbook
Set-Top Boxes
SSD (Solid State Drives)
Consumer Electronics
Tablet PC
Telecom Systems
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AP22811
Document number: DS39135 Rev. 4 - 2
1 of 17
www.diodes.com
July 2017
© Diodes Incorporated
AP22811
Typical Applications Circuit
Enable Active High
Power Supply
2.7V to 5.5V
10k
1μF
IN
OUT
0.1μF
Load
120μF
FLG
NEW PRODUCT
ON
OFF
EN/EN GND
Pin Descriptions
Pin Number
Pin Name
SOT25
1
2
3
MSOP-8
6, 7, 8
1
5
OUT
GND
FLG
Voltage Output Pin, connect a 0.1μF bypass capacitor and a high-value
capacitor to GND, close to IC. (At least 10μF in USB application.)
Ground Pin of the Circuitry
Over Current and Over temperature fault report;
Open-Drain flag is active low when triggered.
Enable Input
4
4
EN/EN
AP22811A: Active High
AP22811B: Active Low
5
2, 3
IN
Voltage Input Pin, connect a 1μF low ESR capacitor to GND, close to
IC.
Function
Functional Block Diagram
IN
Current
Sense
UVLO
Driver
Current
Limit
Discharge
Control
OUT
EN/EN
FLG
Thermal
Sense
Deglitch
GND
AP22811
Document number: DS39135 Rev. 4 - 2
2 of 17
www.diodes.com
July 2017
© Diodes Incorporated
AP22811
Absolute Maximum Ratings
(@ T
A
= +25° unless otherwise specified.) (Note 4)
C,
Symbol
ESD HBM
ESD MM
V
IN
V
OUT
V
EN/EN
I
L
T
J(max)
Parameter
Human Body ESD Protection
Machine Model ESD Protection
Input Voltage
Output Voltage
Enable Voltage
Load Current
Maximum Junction Temperature
Storage Temperature
Thermal Resistance, Junction to Ambient
Thermal Resistance, Junction to Case
SOT25 (Note 6)
MSOP-8 (Note 5)
SOT25 (Note 6)
MSOP-8 (Note 5)
Ratings
2000
200
-0.3 to 6.0
-0.3 to (V
IN
+0.3)
-0.3 to (V
IN
+0.3)
Internal Limited
+150
-65 to +150
123
165
33
33
Unit
V
V
V
V
V
A
°
C
°
C
NEW PRODUCT
T
ST
R
θJA
R
θJC
Notes:
°
C/W
4. Stresses greater than the 'Absolute Maximum Ratings' specified above may cause permanent damage to the device. These are stress ratings only;
functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be
affected by exposure to absolute maximum rating conditions for extended periods of time.
5. Test condition for MSOP-8: Device mounted on 1”x1”/2”x2” FR-4 substrate PC board, 2oz copper with minimum recommended pad layout.
6. R
JA
and R
JC
are measured at T
A
= +25° on a high effective thermal conductivity four-layer test board per JEDEC 51-7.
C
Recommended Operating Conditions
(Note 7)
Symbol
V
IN
I
OUT
V
IL
V
IH
T
A
Note:
Parameter
Input Voltage
Output Current
EN/EN Input Logic Low Voltage
EN/EN Input Logic High Voltage
Operating Ambient Temperature
Min
2.7
0
0
1.5
-40
Max
5.5
2
0.5
V
IN
+85
Unit
V
A
V
V
C
7. Refer to the typical application circuit.
AP22811
Document number: DS39135 Rev. 4 - 2
3 of 17
www.diodes.com
July 2017
© Diodes Incorporated
AP22811
Electrical Characteristics
Symbol
V
UVLO
ΔV
UVLO
I
SHDN
I
Q
I
LEAK
I
REV
Input UVLO
Input UVLO Hysteresis
Input Shutdown Current
Input Quiescent Current
Input Leakage Current
Reverse Leakage Current
Switch On-Resistance
Over Load Current Limit
Short-Circuit Current Limit
EN/EN Input Logic Low Voltage
EN/EN Input Leakage
Output Leakage Current
Output Turn-On Delay Time
Output Turn-On Rise Time
Output Turn-Off Delay Time
Output Turn-Off Fall Time
FLG Off Current
FLG Blanking Time
Discharge Time
Discharge Resistance
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
Reverse-Voltage Comparator
Trip Point
Reverse Current Limit
Time from Reverse-Voltage
Condition to MOSFET Turn off
(V
IN
= 5V @ T
A
= +25° C
IN
= 1µF, C
L
= 100nF, unless otherwise specified.)
C,
Test Conditions
V
IN
Rising
V
IN
Decreasing
Disabled, OUT = Open
Enabled, OUT = Open
Disabled, OUT Grounded
Disabled, V
IN
= 0V, V
OUT
= 5V, I
REV
at V
IN
V
IN
= 5V, I
OUT
= 1A
V
IN
= 3.3V, I
OUT
= 1A
V
IN
= 5V, V
OUT
= 4.5V
Enabled, Output short to ground
V
IN
= 2.7V to 5.5V
V
IN
= 5V, V
EN/EN
= 0V and 5.5V
Disabled, V
OUT
= 0V
C
L
= 4.7µF, R
LOAD
= 10Ω @ V
IN
= 3.3V
C
L
= 4.7µF, R
LOAD
= 10Ω @ V
IN
= 3.3V
C
L
= 4.7µF, R
LOAD
= 10Ω @ V
IN
= 3.3V
Figure 1
Figure 1
Figure 1
T
A
= +25°
C
T
A
= +25°
C
Min
1.6
—
—
—
—
—
—
—
2.2
—
—
1.5
—
—
—
1.0
—
—
—
—
2
—
—
—
—
25
—
2
Typ
2.0
180
0.1
80
0.1
0.01
50
60
2.7
0.3
—
—
0.01
0.5
1.7
2.1
20
0.65
40
0.01
6
0.4
90
+140
+35
50
400
6
Max
2.4
—
1
—
1
1
65
90
3.2
—
0.5
—
1
1
—
3.5
—
—
60
1
13
—
130
—
—
75
—
13
Unit
V
mV
µA
µA
µA
µA
mΩ
A
A
V
V
µA
µA
ms
ms
µs
ms
Ω
µA
ms
ms
Ω
C
C
mV
mA
ms
Parameter
NEW PRODUCT
R
DS(ON)
I
LIMIT
I
SHORT
V
IL
V
IH
I
LEAK-EN/EN
I
LEAK-O
t
D(ON)
t
R
t
D(OFF)
t
F
R
FLG
I
FOH
t
BLANK
t
DIS
R
DIS
T
SHDN
T
HYS
V
RVP
I
ROCP
t
TRIG
EN/EN Input Logic High Voltage V
IN
= 2.7V to 5.5V
C
L
= 4.7µF, R
LOAD
= 100Ω @ V
IN
= 3.3V Figure 1
V
FLG
= 5V
Assertion or deassertion due to overcurrent and
over-temperature condition
C
L
= 1µF, V
IN
= 5V, disabled to V
OUT
< 0.5V
V
IN
= 5V, Disabled, I
OUT
= 1mA
Enabled
—
V
OUT
- V
IN
V
OUT
- V
IN
= 100mV
V
IN
FLG Output FET On-Resistance I
FLG
= 10mA
AP22811
Document number: DS39135 Rev. 4 - 2
4 of 17
www.diodes.com
July 2017
© Diodes Incorporated
AP22811
Performance Characteristics
V
EN/EN
50%
50%
V
EN/EN
t
D(OFF)
t
F
50%
50%
t
R
t
R
t
D(ON)
V
OUT
10%
90%
t
D(OFF)
t
F
90%
10%
NEW PRODUCT
t
D(ON)
V
OUT
10%
90%
90%
10%
Figure 1. Voltage Waveforms: AP22811B (Active Low, Left), AP22811A (Active High, Right)
AP22811
Document number: DS39135 Rev. 4 - 2
5 of 17
www.diodes.com
July 2017
© Diodes Incorporated
