AP2141D/ AP2151D
0.5 SINGLE CHANNEL CURRENT-LIMITED
POWER SWITCH WITH OUTPUT DISCHARGE
Description Pin Assignments
The AP2141D and AP2151D are integrated high-side power switches
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optimized for Universal Serial Bus (USB) and other hot-swap
applications. The family of devices complies with USB 2.0 and is
GND 1 8 NC
available with both polarities of Enable input. They offer current and
thermal limiting and short circuit protection as well as controlled rise
2 7 OUT
IN
time and undervoltage lockout functionality. A 7ms deglitch capability
on the open-drain Flag output prevents false over-current reporting and
3 6
IN OUT
does not require any external components.
All devices are available in SOT25, SO-8, MSOP-8EP, and
EN 4 5 FLG
U-DFN2018-6 packages.
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Features
Single USB Port Power Switches with Output Discharge
Over-Current and Thermal Protection
0.8A Accurate Current Limiting
Fast Transient Response
Reverse Current Blocking
90m On-Resistance
Input Voltage Range: 2.7V - 5.5V
0.6ms Typical Rise Time
Very Low Shutdown Current: 1A (max)
Fault Report (FLG) with Blanking Time (7ms typ)
ESD Protection: 4kV HBM, 300V MM
( Top View )
Active High (AP2151D) or Active Low (AP2141D) enable
Ambient Temperature Range -40C to +85C
1 5
OUT IN
SOT25, SO-8, MSOP-8EP (Exposed Pad), and U-DFN2018-6:
2
GND
Available in Green Molding Compound (No Br, Sb)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
3 4
FLG EN
Halogen and Antimony Free. Green Device (Note 3)
15kV ESD Protection per IEC 61000-4-2 (with external
SOT25
capacitance)
UL Recognized, File Number E322375
IEC60950-1 CB Scheme Certified
Applications
Consumer Electronics LCD TVs & Monitors, Game Machines
Communications Set-Top-Boxes, GPS, Smartphones
Computing Laptops, Desktops, Servers, Printers, Docking
Stations, HUBs
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See
AP2141D/ AP2151D
Typical Applications Circuit
AP2151D Enable Active High
Power Supply IN OUT Load
2.7V to 5.5V
0.1uF
0.1uF
10uF
10k
120uF
FLG
ON
EN
GND
OFF
Current Limit Recommended Maximum
Part Number Channel Enable Pin (EN)
Continuous Load Current
(Typical)
AP2141D 1 Active Low 0.8A 0.5A
AP2151D 1 Active High 0.8A 0.5A
Pin Descriptions
Pin Number
Pin
Descriptions
Name
SO-8 MSOP-8EP SOT25 U-DFN2018-6
GND 1 1 2 1 Ground
IN 2, 3 2, 3 5 2 Voltage Input Pin. (all IN pins must be tied together externally)
EN 4 4 4 3 Enable Input, active low (AP2141D) or active high (AP2151D).
Over-current and over-temperature fault report; open-drain flag is active low when
FLG 5 5 3 4
triggered.
OUT 6, 7 6, 7 1 5, 6 Voltage Output Pin (all OUT pins must be tied together externally).
NC 8 8 N/A N/A No Internal Connection; recommend tie to OUT pins.
Exposed pad. Internally connected to GND.
It should be externally connected to GND and thermal mass for enhanced
Exposed tab - Exposed tab - Exposed tab
thermal impedance.
It should not be used as electrical ground conduction path.
2 of 18
March 2015
AP2141D/ AP2151D
Diodes Incorporated
www.diodes.com
Document number: DS32242 Rev. 6 - 2