NXP Semiconductors
PMBT3906
PNP switching transistor
8. Test information
−
I
B
90 %
input pulse
(idealized waveform)
−
I
Bon
(100 %)
10 %
−
I
Boff
−
I
C
90 %
output pulse
(idealized waveform)
−
I
C
(100 %)
10 %
t
t
d
t
on
t
r
t
s
t
off
t
f
006aaa266
Fig 6.
BISS transistor switching time definition
V
BB
V
CC
R
B
oscilloscope
V
I
R1
(probe)
450
Ω
R2
R
C
V
o
(probe)
450
Ω
DUT
oscilloscope
mgd624
V
I
= 5 V; T = 500
μs;
t
p
= 10
μs;
t
r
= t
f
≤
3 ns
R1 = 56
Ω;
R2 = 2.5 kΩ; R
B
= 3.9 kΩ; R
C
= 270
Ω
V
BB
= 1.9 V; V
CC
=
−3
V
Oscilloscope: input impedance Z
i
= 50
Ω
Fig 7.
Test circuit for switching times
PMBT3906_6
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© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 06 — 2 March 2010
6 of 11
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