Diodes AP2805 - Manual

Data Sheet
500mA High-side Power Distribution Switch with Enable and Flag AP2805
Aug. 2012 Rev 1. 0 BCD Semiconductor Manufacturing Limited
1
General Description
The AP2805 is an integrated high-side power switch
that consists of N-Channel MOSFET, charge pump,
over current & temperature and other related protection
circuits. The switch’s low RDS (ON), 60mΩ, design
easily to meet USB voltage drop requirements. It
includes soft-start to limit inrush current, over-current
protection, load short protection with fold-back, and
thermal shutdown to avoid switch failure during hot
plug-in. Under voltage lockout (UVLO) function is
used to ensure the device remain off unless there is a
valid input voltage present. A Flag output is available
to indicate fault conditions to the local USB
controller.
The AP2805 is available in standard packages of
SOIC-8 and MSOP-8.
Features
•
Low MOSFET on Resistance:
60mΩ@V
IN
=5.0V
• Compliant to USB Specifications
• Operating Voltage Range: 2.7V to 5.5V
• Low Supply Current: 60µA (Typ.)
• Low Shutdown Current: 1.0µA (Max)
• Guarantee 0.5A Continuous Load
• Current Limit: 0.7A (Min), 1.4A (Max)
• Under-voltage Lockout
• Logic Level Enable Pin: Available in
Active-high or Active-low Version
• Over-current Protection
• Over Temperature Protection
• Load Short Protection with Fold-back
• No Reverse Current When Power Off
• Deglitched Flag Output with Open Drain
• With Output Shutdown Pull-low Resistor for
A/C Versions
• UL Approved (File No. E339337)
• Nemko CB Scheme IEC60950-1, Ref. Certif
No. NO67288
Applications
• USB Power Management
• USB Bus/Self Powered Hubs
• Hot-plug Power Supplies
• Battery-charger Circuits
• Notebooks, Motherboard PCs
Figure 1. Package Types of AP2805
SOIC-8 MSOP-8