Diodes AP2820 - Manual

Advance Datasheet
High-side Power Distribution Switch with Enable and Flag AP2820
Jul. 2012 Rev 1. 7 BCD Semiconductor Manufacturing Limited
1
General Description
The AP2820 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 R
DS(ON)
, 60m Ω, is designed
to meet USB voltage drop requirements. The IC
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 AP2820 is available in standard packages of
SOIC-8 and MSOP-8.
Applications
• USB Power Management
• USB Bus/Self Powered Hubs
• Hot-plug Power Supplies
• Battery-charger Circuits
• Notebooks, Motherboard PCs
Features
•
Low MOSFET on Resistance: 60m Ω
• Compliant to USB Specifications
• Available 2 Versions of Load Ability:
Guarantee 2.0A Continuous Load for A/B/C/D
Version
Guarantee 2.5A Continuous Load for E/F/G/H
Version
• Logic Level Enable Pin: Available with
Active-high or Active-low Version
• Operating Voltage Range: 2.7V to 5.5V
• Low Supply Current:
75
μA (Typ.) (For A/B/C/D versions)
80 μA (Typ.) (For E/F/G/H versions)
• Low Shutdown Current: 1.0 μA (Max)
• Under-voltage Lockout
• Soft Start-up
• 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/E/G Versions
• UL Approved (File No. E339337)
• Nemko CB Scheme IEC60950-1, Ref. Certif
No. NO62093
Figure 1. Package Types of AP2820
SOIC-8 MSOP-8