AP2181/ AP2191

Document number: DS31563 Rev. 7 - 2

1 of 17

www.diodes.com

March 2013

© 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

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



95m

Ω 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 TV & Monitor, Game Machines



Communications – Set-Top-Box, GPS, Smartphone



Computing – Laptop, Desktop, Servers, Printers, Docking

Station, HUB

Pin Assignments

SO-8

( Top View )

1

2

3

4

8

7

6

5

NC

OUT

FLG

OUT

GND

EN

IN

IN

FLG

EN

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.