AP3405

Document number: DS38093 Rev. 1 - 2

7 of 9

www.diodes.com

January 2016

© Diodes Incorporated

AP3405

Application Information

Please refer to the Typical Applications Circuit, and to set the circuit parameters please refer to the following descriptions.

Undervoltage Lockout (UVLO) Circuit

switch built-in switch transistor

higher than UVLO released voltage, the IC will restart the operation.

Short Circuit Protection and Recovery

AP3405 will enter cycle-by-cycle current limit mode until the current under OCP threshold.

Input Overvoltage Protection

When input voltage of AP3405 is near 6.25V, the IC will enter Input-Overvoltage-Protection. It would be shut down and there will be no output

voltage in this state. As the input voltage goes down below 6V, it will leave input OVP and recover the output voltage.

Over-Temperature Protection

The internal thermal temperature protection circuitry is provided to protect the integrated circuit in the event that the maximum junction

temperature is exceeded. When the junction temperature exceeds +140°C, it shuts down the internal control circuit and switching power MOSFET.

The AP3405 will restart automatically under the control of soft start circuit when the junction temperature decreases to +100°C.

Ordering Information

AP3405SHE - 7

Packing

Package

7 : Tape & Reel

U-DFN2020-8

Device

Package

Code

Packaging

7” Tape and Reel

Quantity

Part Number Suffix

AP3405SHE-7

SHE

U-DFN2020-8

3,000/Tape & Reel

-7

Marking Information

U-DFN2020-8 (Type E)

( Top View )

XX

Y : Year : 0~9

X : Internal Code

XX : Identification Code

W : Week : A~Z : 1~26 week;

a~z : 27~52 week; z represents

52 and 53 week

Y W X

Part Number

Package

Identification Code

AP3405SHE

U-DFN2020-8

2V