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Diodes |
AP2161A/ AP2171A
1A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH
Description
The AP2161A and AP2171A 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 undervoltage 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.
Pin Assignments
GND 1
( Top View )
IN 2
IN 3
EN 4
SO-8
8 NC
7 OUT
6 OUT
5 FLG
Features
• Single USB Port Power Switches
• Over-Current and Thermal Protection
• 1.5A 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 (AP2161A) or Active High (AP2171A) 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, Smartphones
• Computing – Laptops, Desktops, Servers, Printers, Docking
Stations, HUBs
( Top View )
GND 1
6 OUT
IN 2
5 OUT
EN 3
4 FLG
U-DFN2018-6
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.
AP2161A/AP2171A
Document number: DS37617 Rev. 1 - 2
1 of 18
www.diodes.com
March 2015
© Diodes Incorporated
Typical Applications Circuit
AP2161A/ AP2171A
Available Options
Part Number
AP2161A
AP2171A
Channel
1
1
Enable Pin (EN)
Active Low
Active High
Current Limit
(typ)
1.5A
1.5A
Recommended Maximum Continuous
Load Current
1.0A
1.0A
Pin Descriptions
Pin
Name
GND
IN
EN
FLG
OUT
NC
SO-8
1
2, 3
4
5
6, 7
8
Exposed tab
-
Pin Number
MSOP-8EP SOT25
12
2, 3 5
44
53
6, 7 1
8 N/A
Exposed tab
-
U-DFN2018-6
Function
1 Ground
2 Voltage input pin (all IN pins must be tied together externally)
3 Enable input, active low (AP2161A) or active high (AP2171A)
4
Over-current and over-temperature fault report; open-drain flag is active low when
triggered
5, 6 Voltage output pin (all OUT pins must be tied together externally)
N/A No internal connection; recommend tie to OUT pins
Exposed pad.
Exposed tab It should be connected to GND and thermal mass for enhanced thermal
impedance. It should not be used as electrical ground conduction path.
AP2161A/AP2171A
Document number: DS37617 Rev. 1 - 2
2 of 18
www.diodes.com
March 2015
© Diodes Incorporated
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