AP2141_0906 Datasheet, PDF (1/19 Pages) Diodes Incorporated – 0.5A SINGLE CHANNEL CURRENT-LIMITED POWER

Features
AP2141/AP2151
0.5A SINGLE CHANNEL CURRENT-LIMITED POWER
SWITCH
Description
• 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 – 5.5V
• 0.6ms typical rise time
• Very low shutdown current: 1uA (max)
• Fault report (FLG) with blanking time (7ms typ)
• ESD protection: 4KV HBM, 400V MM
• Active high (AP2151) or active low (AP2141) enable
• Ambient temperature range -40ºC to 85°C
• SOT25, SOP-8L, MSOP-8L-EP (Exposed Pad), and
DFN2018-6: Available in “Green” Molding Compound
(No Br, Sb)
• Lead Free Finish / RoHS Compliant (Note 1)
• UL Recognized, File Number E322375
• IEC60950-1 CB Scheme Certified
The AP2141 and AP2151 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 SOP-8L, MSOP-8L-EP, SOT25, and
DFN2018-6 packages.
Applications
• Consumer electronics – LCD TV & Monitor, Game Machines
• Communications – Set-Top-Box, GPS, Smartphone
• Computing – Laptop, Desktop, Servers, Printers, Docking Station, HUB
Typical Application Circuit
AP2151 Enable Active High
Power Supply
2.7V to 5.5V
IN
OUT
10k 10uF ^0.1uF
FLG
ON
OFF
EN _GND
Load
0.1uF
120uF
Available Options
Part Number Channel
AP2141
1
AP2151
1
Enable pin (EN)
Active Low
Active High
Current limit
(typical)
0.8A
0.8A
Recommended maximum
continuous load current
0.5A
0.5A
AP2141/AP2151 Rev. 6
DS31562
1 of 19
www.diodes.com
JUNE 2009
© Diodes Incorporated