AP2401A/AP2411A

Document number: DS37744 Rev. 1 - 2

11 of 18

www.diodes.com

March 2015

© Diodes Incorporated

AP2401A/AP2411A

Application Information (continued)

Undervoltage Lockout (UVLO)

Undervoltage lockout function (UVLO) keeps the internal power switch from being turned on until the power supply has reached at least 2V, even

if the switch is enabled. Whenever the input voltage falls below approximately 2V, the power switch is quickly turned off. This facilitates the

design of hot-insertion systems where it is not possible to turn off the power switch before input power is removed.

Discharge Function

The discharge function of the device is active when enable is disabled or de-asserted. The discharge function with the N-MOS power switch

implementation is activated and offers a resistive discharge path for the external storage capacitor. This is designed for discharging any residue

of the output voltage when either no external output resistance or load resistance is present at the output.

Dual-Purpose Port Applications

AP2401A/AP2411A is suitable for use in dual-purpose port applications in which a single port is used for data communication between the host

and peripheral devices while simultaneously maintaining a charge to the battery of the peripheral device. An example of this is a shared

HDMI/MHL (Mobile High-definition Link) port that allows streaming video between an HDTV or set-top box and a smartphone or tablet while

maintaining a charge to the smartphone or tablet battery. In such dual-purpose port applications, it is important to insure Vin of the

AP2401A/AP2411A is ramped to its operating voltage prior to enabling the output. Since the AP2401A/AP2411A includes an embedded discharge

feature that discharges the output load of the device when the device is disabled, the batteries of the connected peripheral device will be subject to

continual discharge whenever the AP2401A/AP2411A is disabled. An overstress condition to the device's discharge MOS transistor may result.

Ordering Information

Part

Number

Status

Package

Code

Packaging

7”/13” Tape and Reel

Quantity

Part Number Suffix

AP24X1AS-13

New Product

S

SO-8

2,500/Tape & Reel

-13

AP24X1AM8-13

New Product

M8

MSOP-8

2,500/Tape & Reel

-13

AP24X1AMP-13

New Product

MP

MSOP-8EP

2,500/Tape & Reel

-13

AP24X1AFGE-7

New Product

FGE

U-DFN3030-8

3,000/Tape & Reel

-7

AP24X1ASN-7

Preview

SN

U-DFN2020-6

3,000/Tape & Reel

-7