AQY210KS View Datasheet(PDF) - Panasonic Corporation

Part Name

Description

MFG CO.

AQY210KS

Small SOP4-pin type with short circuit protecting (Latch type)

Panasonic Corporation 

GU SOP 1 Form A Short Circuit Protection (AQY210KS)

What is short circuit protection latch type?

When the load current reaches a certain

fixed value, the short circuit protection

function activates to completely cut off

the load current and keep the PhotoMOS

turned off.

The short circuit protection inside the

PhotoMOS instantaneously

(Typ. 50 μs) and completely cuts of the

load current.

This protects any circuits that follow the

PhotoMOS from excess current.

There is almost no heating of the

PhotoMOS, which prevents it from

becoming damaged. To restore the

function of the PhotoMOS turn off the

input current and then turn it back on.

In order to operate the short circuit

protection function, ensure that the input

current is at least IF = 5 mA.

Output voltage and output current

characteristics

V-I characteristics of PhotoMOS with

short circuit protection circuit

Output voltage

Operation chart

5mA

PhotoMOS

input current

0

Occurrence of

short circuit current

Abnormal current

120mA

PhotoMOS

output current

0

Normal PhotoMOS operation

Detection time

(approx. 50 μs)

The short circuit current

detection device latches

when the PhotoMOS is off.

The PhotoMOS operates normally

when the input current is reset.

If the output section shorts even after

the input current is reset, it will latch

when the short circuit current is detected

again and the PhotoMOS turns off.

–4–

ASCTB27E 201703-T

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