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AP2181/ AP2191
Document number: DS31563 Rev. 8 - 2
1 of 17
www.diodes.com
March 2015
© Diodes Incorporated
AP2181/ AP2191
1.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH
Description
The AP2181 and AP2191 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 under-voltage 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 (AP2181) or Active High (AP2191) Enable
• Ambient Temperature Range: -40°C to +85°C
• SOT25, SO-8, MSOP-8EP (Exposed Pad), and U-DFN2018-6:
Available in “Green” Molding 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 TVs & Monitors, Game Machines
• Communications – Set-Top-Boxes, GPS Systems,
Smartphones
• Computing – Laptops, Desktops, Servers, Printers, Docking
Stations, HUBs
Pin Assignments
SO-8
( Top View )
1
2
3
4
8
7
6
5
NC
OUT
FLG
OUT
GND
EN
IN
IN
FLGEN
GND
OUT
OUT
IN
1
3
2
4
5
6
U-DFN2018-6
( Top View )
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.
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