PART OBSOLETE –
USE
AP22811AM8-13, AP22811BM8-13
AP2820
2.0A HIGH-SIDE POWER DISTRIBUTION SWITCH WITH ENABLE AND FLAG
Description
The AP2820 is an integrated high-side power switch that consists of
TTL compatible enables input, a charge pump, and N-Channel
MOSFET. The switch’s low RDS (ON), 70mΩ, meets USB voltage
drop requirements. The device includes soft-start to limit inrush
current, overcurrent protection with foldback, and thermal shutdown to
avoid switch failure during hot plug-in. Undervoltage lockout (UVLO)
function ensures the device remains off unless there is a valid input
voltage present. A flag output is available to indicate fault conditions
to the local USB controller.
The AP2820 is available in standard packages of SOIC-8, MSOP-8,
and SOT-23-5.
Pin Assignments
(Top View)
GND
VIN
VIN
EN/EN
1
2
3
4
8
7
6
5
VOUT
VOUT
VOUT
FLAG
OBSOLETE – PART DISCONTINUED
SOIC-8/MSOP-8
(Top View)
FLAG
GND
EN/EN
1
2
3
5
VOUT
4
VIN
SOT-23-5
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Low MOSFET on Resistance: 70mΩ @ V
DD
=5.0V
Compliant to USB Specifications
Operating Voltage Range: 2.7V to 6V
Low Shutdown Current: <1µA
Guarantee 2.0A Continuous Load
Current Limit: 2.2A (Minimum), 3.2A (Maximum)
Undervoltage Lockout
Soft Start-up
Overcurrent Protection
Overtemperature Protection
Load Short Protection With Foldback
No Reverse Current When Power Off
Deglitched Flag Output with Open Drain
UL Approved (Code TBD)
Applications
•
•
•
•
•
USB Power Management
USB Bus/Self Powered Hubs
Hot-Plug Power Supplies
Battery-Charger Circuits
Notebook, Motherboard PCs
Typical Applications Circuit
R
10 kΩ
V
IN
= 5V
VIN
FLAG
USB Controller
C
IN
( Note 1)
22µ F
Enable
AP2820
EN/EN
GND
VOUT
V
BUS
D+
D-
GND
C
OUT
22µ F
Note:
1. 1µF input capacitor is enough in most application cases. If the PCB trace of power rail to V
IN
is long, larger input capacitor is necessary.
AP2820
Document number: DS41255 Rev. 1 - 4
1 of 7
www.diodes.com
September 2018
© Diodes Incorporated
AP2820
Pin Descriptions
Pin Number
Pin Name
SOIC-8/MSOP-8
1
SOT-23-5
2
4
3
1
5
GND
VIN
Ground
Supply Input Pin
Chip Enable Control Input, Active Low or High
Fault Flag Pin, Output With Open Drain, Requires a Pull-Up Resistor
in Application, Active Low To Indicate OCP or OTP
Switch Output Voltage
Function
OBSOLETE – PART DISCONTINUED
2, 3
4
5
6, 7, 8
EN/EN
FLAG
VOUT
Absolute Maximum Ratings
(Note 2)
Symbol
V
IN
T
J
T
STG
T
LEAD
Parameter
Power Supply Voltage
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10s)
SOIC-8
ϴ
JA
Thermal Resistance (Junction to Ambient)
MSOP-8
SOT-23-5
—
—
Note:
Rating
6.5
+150
-65 to +150
+260
TBD
TBD
TBD
200
2000
Unit
V
°C
°C
°C
°C/W
ESD (Machine Model)
ESD
(Human
Body Model)
V
V
2. Stresses greater than those listed under
Absolute Maximum Ratings
can cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under
Recommended Operating Conditions
is not implied.
Exposure to
Absolute Maximum Ratings
for extended periods can affect device reliability.
Recommended Operating Conditions
Symbol
V
IN
T
A
Supply Voltage
Ambient Operation Temperature Range
Parameter
Min
2.7
-40
Max
6.0
+85
Unit
V
°C
AP2820
Document number: DS41255 Rev. 1 - 4
2 of 7
www.diodes.com
September 2018
© Diodes Incorporated
AP2820
Package Outline Dimensions
(All dimensions in mm (inch).)
(1)
Package Type: SOIC-8
OBSOLETE – PART DISCONTINUED
4.700(0.185)
5.100(0.201)
7
°
1.350(0.053)
1.750(0.069)
0.320(0.013)
8°
7
°
8°
0.675(0.027)
0.725(0.029)
D
5.800(0.228)
6.200(0.244)
D
20:1
1.270(0.050)
TYP
0.100(0.004)
0.300(0.012)
R0.150(0.006)
0.800(0.031)
0.200(0.008)
1.000(0.039)
3.800(0.150)
4.000(0.157)
0°
8°
0.330(0.013)
0.510(0.020)
0.190(0.007)
0.250(0.010)
0.900(0.035)
1°
5°
R0.150(0.006)
0.450(0.017)
0.800(0.031)
Note: Eject hole, oriented hole and mold mark is optional.
AP2820
Document number: DS41255 Rev. 1 - 4
4 of 7
www.diodes.com
September 2018
© Diodes Incorporated
PCB设计
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