Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

[SOLVED] what is forward current If and tp

Status
Not open for further replies.

FvM

Super Moderator
Staff member
Joined
Jan 22, 2008
Messages
48,405
Helped
14,251
Reputation
28,763
Reaction score
12,939
Trophy points
1,393
Location
Bochum, Germany
Activity points
280,118
Diode (foward) current, pulse width.

If your IR LED application is DC rather than pulsed, you only look for maximum continuous forward current and ignore the pulse stuff.
 

4tuty

Member level 2
Joined
Mar 27, 2012
Messages
52
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
1,679
Diode (foward) current, pulse width.

If your IR LED application is DC rather than pulsed, you only look for maximum continuous forward current and ignore the pulse stuff.

could you please explain about the pulse stuff
 

Audioguru

Advanced Member level 5
Joined
Jan 19, 2008
Messages
9,239
Helped
2,136
Reputation
4,266
Reaction score
1,960
Trophy points
1,393
Location
Toronto area of Canada
Activity points
58,064
The datasheet tells you that "If" is its forward current.
It also shows that its maximum allowed continuous current is 150mA but if the tp pulse width is 100us for half the total time then it can withstand 300mA of current because it takes longer time to overheat.
 
  • Like
Reactions: 4tuty

    4tuty

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top