parth22
Member level 4
Hi all,
I have a general question and confused with datasheet values.
I am using an npn transistor as a low side switch. Below is the data sheet of this transistor.
In the below image also you can see.
I would like to draw 10ma collector current. so for 10ma currnet VCE(sat.) is 0.2V (from data sheet). let's suppose VCC = 10 so i can calculate RC = (VCC- VCE(Sat))/10ma.
And same time for the calculation of base current...we need ß (dc gain) so for 10ma ß = 50 to 150 (from the data sheet )...in this way IB = 0.06 ma to 0.2 ma
but as per the data sheet for Ic= 10ma and VCE (sat) = 0.2V.....IB should be 1mA....HoW???
Whether I am opting wrong values or something else...
can anyone explain?
I have a general question and confused with datasheet values.
I am using an npn transistor as a low side switch. Below is the data sheet of this transistor.
In the below image also you can see.
I would like to draw 10ma collector current. so for 10ma currnet VCE(sat.) is 0.2V (from data sheet). let's suppose VCC = 10 so i can calculate RC = (VCC- VCE(Sat))/10ma.
And same time for the calculation of base current...we need ß (dc gain) so for 10ma ß = 50 to 150 (from the data sheet )...in this way IB = 0.06 ma to 0.2 ma
but as per the data sheet for Ic= 10ma and VCE (sat) = 0.2V.....IB should be 1mA....HoW???
Whether I am opting wrong values or something else...
can anyone explain?