AP2151A
0.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH
Description
Pin Assignments
The AP2151A is an integrated high-side power switches optimized for
(Top View)
Universal Serial Bus (USB) and other hot-swap applications. The
family of devices complies with USB 2.0 and is available with active
high 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.
GND 1
8 NC
IN 2
7
OUT
IN 3
6
OUT
EN 4
5
FLG
AP2151A is available in SO-8, MSOP-8EP, SOT25 and U-DFN20186 packages.
SO-8
(Top View)
Features
Single USB Port Power Switches
Over-Current and Thermal Protection
0.8A Accurate Current Limiting
Reverse Current Blocking
95mΩ On-Resistance
Input Voltage Range: 2.7V to 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, 400V MM
Active High 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)
15kV ESD Protection per IEC 61000-4-2 (With External
Capacitance)
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
Notes:
GND
1
8
NC
IN
2
7
OUT
IN
3
6
OUT
EN
4
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
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ 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
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