AP2145 Datasheet, PDF (1/14 Pages) Diodes Incorporated – 0.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH

Features
AP2145/AP2155
0.5A SINGLE CHANNEL CURRENT-LIMITED POWER
SWITCH
Description
• Single USB port power switches
The AP2145 and AP2155 are integrated high-side power switches
• Over-current and thermal protection
optimized for Universal Serial Bus (USB) and other hot-swap
• 0.8A accurate current limiting
applications. The family of devices complies with USB 2.0 and
• Reverse Current Blocking
available with both polarities of Enable input. They offer current
• 90mΩ on-resistance
and thermal limiting and short circuit protection as well as
• Input voltage range: 2.7V – 5.5V
controlled rise time and under-voltage lockout functionality. A 7ms
• 0.6ms typical rise time
deglitch capability on the open-drain Flag output prevents false
• Very low shutdown current: 1uA (max)
over-current reporting and does not require any external
• Fault report (FLG) with blanking time (7ms typ)
components.
• ESD protection: 6KV HBM, 400V MM
• Active high (AP2155) or active low (AP2145) enable
• Ambient temperature range -40ºC to 85°C
All devices are available in SOP-8L and MSOP-8L-EP packages.
• SOP-8L and MSOP-8L-EP (Exposed Pad): Available in
“Green” Molding Compound (No Br, Sb)
• Lead Free Finish/ RoHS Compliant (Note 1)
• UL Recognized, File Number E322375 (pending)
• IEC60950-1 CB Scheme Certified
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
AP2155 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
AP2145
1
AP2155
1
Enable pin (EN)
Active Low
Active High
Current limit
(typical)
0.8A
0.8A
Recommended maximum
continuous load current
0.5A
0.5A
AP2145/AP2155 Rev. 1
1 of 14
www.diodes.com
DECEMBER 2009
© Diodes Incorporated