Datasheet

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