Diodes AP2145/ AP2155 User Manual
Description, Features, Pin assignments
AP2145/ AP2155
Document number: DS32031 Rev. 3 - 2
1 of 13
March 2013
© Diodes Incorporated
AP2145/ AP2155
0.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH
Description
The AP2145 and AP2155 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 and MSOP-8EP packages.
Features
Single USB Port Power Switches
Over-Current and Thermal Protection
0.8A Accurate Current Limiting
Reverse
Current
Blocking
90mΩ 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: 6kV HBM, 400V MM
Active High (AP2155) or Active Low (AP2145) Enable
Ambient Temperature Range -40°C to +85°C
SO-8 and MSOP-8EP (Exposed Pad): 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
Pin Assignments
SO-8
1
2
3
4
8
7
6
5
OUT
IN
NC
OUT
EN
NC
GND
FLG
(Top View)
MSOP-8EP
1
2
3
4
8
7
6
5
OUT
IN
NC
OUT
EN
NC
GND
FLG
(Top View)
Applications
Consumer electronics – LCD TV & Monitor, Game Machines
Communications – Set-Top-Box, GPS, Smartphone
Computing – Laptop, Desktop, Servers, Printers, Docking Station,
HUB
Notes:
1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.
2. S 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.
Typical Applications Circuit
0.1uF
IN
GND
EN
OUT
ON
120uF
Power Supply
2.7V to 5.5V
0.1uF
OFF
FLG
Load
10k
10uF
Green