AP2161D/AP2171D
Green
1A SINGLE CHANNEL CURRENT-LIMITED
POWER SWITCH WITH OUTPUT DISCHARGE
Description
The AP2161D and AP2171D are integrated high-side power switches
optimized for Universal Serial Bus (USB) and other hot-swap
applications. The family of devices complies with USB 2.0 and is
available with both polarities of Enable input. They offer current and
thermal limiting and short circuit protection as well as controlled rise
time and undervoltage lockout functionality. A 7ms deglitch capability
on the open-drain Flag output prevents false over-current reporting
and does not require any external components.
All devices are available in SOT25, SO-8, MSOP-8, MSOP-8EP, and
U-DFN2018-6 packages.
Pin Assignments
( Top View )
GND
IN
IN
EN
1
2
3
4
8
7
6
5
NC
OUT
OUT
FLG
SO-8
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Single USB Port Power Switches with Output Discharge
Over-Current and Thermal Protection
1.5A Accurate Current Limiting
Fast Transient Response
Reverse Current Blocking
90m On-Resistance
Input Voltage Range: 2.7V – 5.5V
0.6ms Typical Rise Time
Very Low Shutdown Current: 1µA (max)
Fault Report (FLG) with Blanking Time (7ms typ)
ESD Protection: 4kV HBM, 300V MM
Active High (AP2171D) or Active Low (AP2161D) Enable
Ambient Temperature Range -40° to +85°
C
C
SOT25, SO-8, MSOP-8, MSOP-8EP (Exposed Pad), and
U-DFN2018-6: Available in “Green” Molding Compound
(No Br, Sb)
Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
UL Recognized, File Number E322375
IEC60950-1 CB Scheme Certified
GND
IN
EN
( Top View )
GND
IN
IN
EN
1
2
3
4
8
7
6
5
NC
OUT
OUT
FLG
MSOP-8 / MSOP-8EP
Note: Latter with Exposed Pad
(Dotted Line)
( Top View )
OUT
GND
FLG
1
2
3
4
5
IN
EN
SOT25
( Top View )
1
6
Applications
•
•
•
Consumer Electronics – LCD TVs & Monitors, Game Machines
Communications – Set-Top-Boxes, GPS, Smartphones
Computing – Laptops, Desktops, Servers, Printers, Docking
Stations, HUBs
OUT
OUT
FLG
2
5
3
4
U-DFN2018-6
Notes:
1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.
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.
AP2161D/AP2171D
Document number: DS32250 Rev. 6 - 2
1 of 19
www.diodes.com
March 2015
© Diodes Incorporated
AP2161D/AP2171D
Typical Applications Circuit
AP2171D Enable Active High
Power Supply
2.7V to 5.5V
10k
10uF
0.1uF
IN
OUT
0.1uF
Load
120uF
FLG
ON
OFF
EN
GND
Available Options
Part Number
Channel
Enable Pin
(EN)
Current Limit
(Typical)
Recommended Maximum
Continuous Load Current
AP2161D
AP2171D
1
1
Active Low
Active High
1.5A
1.5A
1A
1A
Pin Descriptions
Pin
Name
Pin Number
SO-8
MSOP-8
MSOP-8EP
SOT25
U-DFN2018-6
Functions
GND
IN
EN
FLG
OUT
NC
Exposed tab
1
2, 3
4
5
6, 7
8
-
1
2, 3
4
5
6, 7
8
Exposed tab
2
5
4
3
1
N/A
-
1
2
3
4
5, 6
N/A
Exposed tab
Ground
Voltage input pin (all IN pins must be tied together externally)
Enable input, active low (AP2161D) or active high (AP2171D)
Over-current and over-temperature fault report; open-drain flag is active low when
triggered
Voltage output pin (all OUT pins must be tied together externally)
No internal connection; recommend tie to OUT pins
Exposed pad.
It should be connected to GND and thermal mass for enhanced thermal
impedance.
It should not be used as electrical ground conduction path.
AP2161D/AP2171D
Document number: DS32250 Rev. 6 - 2
2 of 19
www.diodes.com
March 2015
© Diodes Incorporated
AP2161D/AP2171D
Functional Block Diagram
IN
Current
Sense
UVLO
Driver
Current
Limit
Discharge
Control
OUT
EN
FLG
Thermal
Sense
Deglitch
GND
Absolute Maximum Ratings
(@T
A
= +25°C, unless otherwise specified.)
Symbol
Parameter
Ratings
Unit
ESD HBM
ESD MM
V
IN
V
OUT
V
EN ,
V
FLG
I
LOAD
T
JMAX
T
ST
Note:
Human Body Model ESD Protection
Machine Model ESD Protection
Input Voltage
Output Voltage
Enable Voltage
Maximum Continuous Load Current
Maximum Junction Temperature
Storage Temperature Range (Note 4)
4
300
6.5
V
IN
+0.3
6.5
Internal Limited
150
-65 to +150
kV
V
V
V
V
A
°C
°C
4. UL Recognized Rating from -30° to +70°C (Diodes qualified T
ST
from -65°C to +150°
C
C).
Recommended Operating Conditions
(@T
A
= +25°C, unless otherwise specified.)
Symbol
Parameter
Min
Max
Unit
V
IN
I
OUT
V
IL
V
IH
T
A
Input Voltage
Output Current
EN Input Logic Low Voltage
EN Input Logic High Voltage
Operating Ambient Temperature
2.7
0
0
2
-40
5.5
1.0
0.8
V
IN
+85
V
A
V
V
°C
AP2161D/AP2171D
Document number: DS32250 Rev. 6 - 2
3 of 19
www.diodes.com
March 2015
© Diodes Incorporated
AP2161D/AP2171D
Electrical Characteristics
(@T
A
= +25°C, V
IN
= +5.0V, unless otherwise specified.)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
V
UVLO
I
SHDN
I
Q
I
LEAK
I
REV
Input UVLO
Input Shutdown Current
Input Quiescent Current
Input Leakage Current
Reverse Leakage Current
—
Disabled, I
OUT
= 0
Enabled, I
OUT
= 0
Disabled, OUT grounded
Disabled, V
IN
= 0V, V
OUT
= 5V, I
REV
at V
IN
V
IN
= 5V,
I
OUT
= 1A
SOT25, MSOP-8,
T
A
= +25°C MSOP-8EP, SO-8
U-DFN2018-6
-40°C
≤
T
A
≤
+85°C
V
IN
= 3.3V, I
OUT
= T
A
= +25°C
1A
-40°C
≤
T
A
≤
+85°C
1.6
—
—
—
—
—
—
—
—
—
—
1.1
—
—
2
—
—
—
—
—
—
4
—
—
—
—
—
—
—
—
—
1.9
0.5
45
0.1
0.1
95
90
—
120
—
1.2
1.5
2.0
—
—
—
0.05
0.6
0.05
0.05
20
7
100
0.6
140
25
170
127
118
67
70
2.5
1
70
1
1
115
110
140
140
170
—
1.9
—
0.8
—
1
—
1.5
—
0.1
40
15
—
—
—
—
—
—
—
—
—
V
µA
µA
µA
µA
R
DS(ON)
Switch On-Resistance
m
I
SHORT
I
LIMIT
I
Trig
V
IL
V
IH
I
SINK
T
D(ON)
T
R
T
D(OFF)
T
F
R
FLG
T
Blank
R
DIS
T
DIS
T
SHDN
T
HYS
Short-Circuit Current Limit
Over-Load Current Limit
EN Input Logic Low Voltage
EN Input Logic High Voltage
EN Input Leakage
Output Turn-On Delay Time
Output Turn-On Rise Time
Output Turn-Off Delay Time
Output Turn-Off Fall Time
FLG Output FET On-Resistance
FLG Blanking Time
Discharge Resistance (Note 5)
Discharge Time
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
Enabled into short circuit, C
L
= 22µF
V
IN
= 5V, V
OUT
= 4.0V, C
L
= 120µF, -40°C
≤
T
A
≤
+85°C
V
IN
= 2.7V to 5.5V
V
IN
= 2.7V to 5.5V
V
EN
= 5V
C
L
= 1µF, R
LOAD
= 10
C
L
= 1µF, R
LOAD
= 10
C
L
= 1µF, R
LOAD
= 10
C
L
= 1µF, R
LOAD
= 10
I
FLG
= 10mA
C
IN
= 10µF, C
L
= 22µF
V
IN
= 5V, disabled, I
OUT
= 1mA
CL = 1µF, VIN = 5V, disabled to VOUT < 0.5V
Enabled, R
LOAD
= 1k
—
SOT25 (Note 6)
SO-8 (Note 6)
MSOP-8 (Note 6)
MSOP-8EP (Note 7)
U-DFN2018-6 (Note 7)
A
A
A
V
V
µA
ms
ms
ms
ms
ms
ms
°C
°C
Current Limiting Trigger Threshold Output Current Slew rate (<100A/s) , C
L
= 22µF
θ
JA
Thermal Resistance Junction-to-
Ambient
°C/W
Notes:
5. The discharge function is active when the device is disabled (when enable is de-asserted). The discharge function offers a resistive discharge path
for the external storage capacitor.
6. Device mounted on FR-4 4 substrate PCB, 2oz copper, with minimum recommended pad layout.
7. Device mounted on 2” x 2” FR-4 substrate PCB, 2oz copper, with minimum recommended pad on top layer and thermal vias to bottom layer ground
plane.
AP2161D/AP2171D
Document number: DS32250 Rev. 6 - 2
4 of 19
www.diodes.com
March 2015
© Diodes Incorporated
AP2161D/AP2171D
Typical Performance Characteristics
V
EN
50%
50%
50%
50%
V
EN
T
D(OFF)
OFF)
T
F
50%
50%
50%
50%
T
R
T
D(ON)
ON)
V
OUT
10%
10%
90%
90%
T
R
T
D(ON)
ON)
V
OUT
10%
10%
90%
90%
T
D(OFF)
OFF)
T
F
90%
90%
10%
10%
90%
90%
10%
10%
Figure 1 Voltage Waveforms: AP2161D (left), AP2171D (right)
All Enable Plots are for AP2171D Active High
Turn-On Delay and Rise Time
Turn-Off Delay and Fall Time
V
EN
5V/div
V
EN
5V/div
V
OUT
2V/div
C
L
= 1µF
T
A
= +25°C
R
L
= 10
C
L
=1µF
T
A
= +25°C
R
L
= 10
V
OUT
2V/div
100µs/div
100µs/div
Turn-Off Delay and Fall Time
Turn-On Delay and Rise Time
V
EN
5V/div
V
EN
5V/div
V
OUT
2V/div
C
L
= 120µF
T
A
= +25°C
R
L
= 10
C
L
= 120µF
T
A
= +25°C
R
L
= 10
V
OUT
2V/div
500µs/div
500µs/div
AP2161D/AP2171D
Document number: DS32250 Rev. 6 - 2
5 of 19
www.diodes.com
March 2015
© Diodes Incorporated
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