LT211SC

Rev.B

Letex Technology Corp.

-40

0

-20

Ambient temperature (℃)

40

0

20

60

80

85

100

-40

0

-20

Ambient temperature (℃)

40

0

20

60

85

Cut off current Vs.

Ambient temperature

50

100

150

200

250

300

Detection time Vs.

Ambient temperature

50

100

100

150

200

250

300

●RECOMMENDED OPERATING CONDITIONS

Please following conditions to ensure proper device operation and resetting.

Item

Symbol

Recommended value

Unit

Input LED current

IF

5~10

mA

Short-circuit protection function

When the load current exceeds a fixed value, the short circuit protection function activates to completely

cut off the load current and keep the Photo MOS Relay turned off. In the Photo MOS Relay ,The short

circuit protection instantaneously completely cuts of the load current. This function protects any circuits

that follow the Photo MOS Relay from excess current and prevents it from becoming damaged. Turn off

the input current, and restart, Photo mos relay function to restore. To make the short circuit protection

complete, make sure that the input current is at least IF = 5 mA.

Output voltage and current characteristics

Output Voltage

V-I characteristics of

short circuit protection circuit

Action flow chart

Output Current

Iutput Current

5mA

120mA

Short circuit

current

Abnormal current

whentheinput current isreset.

ThePhotoMOSoperatesnormally

Theloadcurrent exceedsafixedvalue

, theshort circuit protectionfunction

activatestocompletelycut off

theloadcurrent