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AP2181A Datasheet

1.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH

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AP2181A/ AP2191A
1.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH
Description
The AP2181A and AP2191A are integrated high-side power switches
optimized for Universal Serial Bus (USB) and other hot-swap
applications. This family of devices complies with USB 2.0 and is
available with both polarities of Enable input. The AP2181A and
AP2191A 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 SO-8, MSOP-8EP, SOT25 and
U-DFN2018-6 packages.
Features
Single USB Port Power Switches
Over-Current and Thermal Protection
2.1A Accurate Current Limiting
Reverse Current Blocking
95mΩ 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 Low (AP2181A) or Active High (AP2191A) Enable
Ambient Temperature Range: -40°C to +85°C
SOT25, SO-8, MSOP-8EP (Exposed Pad), and U-DFN2018-6:
Available in GreenMolding Compound (No Br, Sb)
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
Applications
Consumer Electronics LCD TV & Monitor, Game Machines
Communications Set-Top Box, GPS, Smartphone
Computing Laptop, Desktop, Servers, Printers, Docking
Station, HUB
Pin Assignments
GND 1
( Top View )
8 NC
IN 2
7 OUT
IN 3
6 OUT
EN 4
SO-8
5 FLG
GND
IN
IN
EN
1
2
3
4
( Top View )
8 NC
7 OUT
6 OUT
5 FLG
MSOP-8EP
( Top View )
OUT 1
GND 2
FLG 3
5 IN
4 EN
SOT25
( Top View )
GND 1
6 OUT
IN 2
5 OUT
EN 3
4 FLG
U-DFN2018-6
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.
AP2181A/ AP2191A
Document number: DS37618 Rev. 1 - 2
1 of 17
www.diodes.com
March 2015
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

AP2181A Datasheet

1.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH

No Preview Available !

AP2181A/ AP2191A
Typical Applications Circuit
AP2191A Enable Active High
Power Supply
2.7V to 5.5V
IN
10k 10uF 0.1uF
OUT
FLG
ON
OFF
EN GND
Load
0.1uF
120uF
Available Options
Part Number
AP2181A
AP2191A
Channel
1
1
Enable Pin (EN)
Active Low
Active High
Current Limit
(typ)
2.1A
2.1A
Recommended Maximum Continuous
Load Current
1.5A
1.5A
Pin Descriptions
Pin
Name
GND
IN
EN
FLG
OUT
NC
SO-8
1
2, 3
4
5
6, 7
8
Exposed tab
-
Pin Number
MSOP-8EP SOT25
12
2, 3 5
44
53
6, 7 1
8 N/A
Exposed tab
-
U-DFN2018-6
Function
1 Ground
2 Voltage Input Pin (all IN pins must be tied together externally)
3 Enable input, active low (AP2181A) or active high (AP2191A)
4
Over-current and over-temperature fault report; open-drain flag is active low when
triggered
5, 6 Voltage Output Pin (all OUT pins must be tied together externally)
N/A No internal connection; recommend tie to OUT pins
Exposed Pad
Exposed tab It should be connected to GND and thermal mass for enhanced thermal
impedance. It should not be used as electrical ground conduction path.
AP2181A/ AP2191A
Document number: DS37618 Rev. 1 - 2
2 of 17
www.diodes.com
March 2015
© Diodes Incorporated


Part Number AP2181A
Description 1.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH
Maker Diodes Incorporated
Total Page 17 Pages
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