E-C voltage drop on ULN2803

William At MyBlueRoom

New Member

• Jul 26, 2006

• #1

Since the ULN2803 is a darlington pair, I'm wondering how much is the voltage drop from E-C. 1.4V? .7V? Can't find it in the spec sheet.

 

H

hjames

New Member

• Jul 26, 2006

• #2

TI's ULN2803A variant has it listed as VCEsat (1.6V max @ 350mA) on page 3.
**broken link removed**

 

Roff

Well-Known Member

• Jul 26, 2006

• #3

And ST Microelectronics has a graph of Vce(sat) vs Ic. See below.

 

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William At MyBlueRoom

New Member

• Jul 26, 2006

• #4

Ahh, thanks. Guess I have to learn to read spec sheets better.