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Diodes AP2820 User Manual

Advance datasheet, General description, Applications

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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