Tektronix 576 User Manual

The Ty pe 576 Curve Tracer is α dynamic semicond ucto
r
tester w h ic h allows d is p lay a n d
meas u rement of c h aracte r is-
tic curves of α variety of two an d
t h ree terminal d evices
i n clu d ing bi p olar transisto r s, fiel d
effect t r ansistors, M OS-
FE
Ts,
silicon controlle d rectifiers and uni j
unction transis-
tors . Α va r iety of possible measurements is
available using
eit h er groun d ed emitter or g r ounde d base conf ί g ιι rations .
T h
e instrument has available eit h er an AC or α DC collecto
r
su pp
ly voltage rangi n g from 0 to ±1500 volts . T
h e ste p
generator prod uces eit h er cur r ent or voltage ste p s, w
h ic h
may
be
app lie d to eit h er t h e base terminal or t h
e emitter
terminal of t he device un d er test . Ste
p generator out p uts
range f r om 5 ηΑ to 2 Α in t he cur r ent mo d
e,
an d
from 5
mV to 40 V in t he voltage mo d
e .
T
h e ste p
s
may also be
pro duced as s h ort d uration pulses .
Calibrate d ste p offset
allows offsetting t h e ste p generato
r outp ut eit h er positive
or negative . T he vertical dis p lay
am p lifier measures eit h er
collector current
or leakage current with α maximum
d eflection
factor of 1 ηΑ / d ivision w h en making α leakage
TA BLE 1-1
ELE CT R ICA L C H A R ACT ER ISTICS
Collector Sup p
ly
I
Collector S upp ly Maxi mu m Con ti nuou s P ea k C urr
en t O p e r ating
Ti m e vs
D u ty Cycle a nd Ambient Tem p erature .
W
it
h t he PEAK
P O WER W ATTS at 50
only, t he followi ng limitatio n s apply : Maxi-
mum co n tin u ou s op erati
n g
ti
m e at r ated c urr e n t (100% duty cycle)
i
n to α sh
ort ci r
c
u it is 20 nii n utes at 25 C am b ie n t, o r 10 m
i
nu tes at
40 ° C a
m bie n t . Alte rn atively d ur y cycle may be li m ited to 50% at
25 ° C a mb ie n t o r 25% at 40 ° C a mb
ie n t .
(
Α no r mal fa m ily of cu rves
fo r α tra n sisto r will pr o du ce α du
ty cycle effect to 50% o r less eve n
if o p erate d
co n ti nu o u sly
.)
Ove r dissipation of t he collector supply
will
te mp o
r
a
r ily s hu t it off and t urn on t he yellow CO LLE CTO R
S UPPL Y VO L TAG E DISA BLE D lig h t . Νο d a m age
will res u lt .
S
E
CTIO
N 1
S PE CI
F I
CA
ΤΙΟΝ
C hange information, if any, affecting
t h
is section
will
be
found at t he rear of the manual .
measureme n t . T h e horizontal d is p lay am p lifier allows
meas-
urement of both collector an d base voltage .
T he following electrical and environmental c h aracteris-
tics are vali d fo r instruments op erate d at an ambient tem-
pe r atu r e of from
+1 ρ
°C to +40 ° C after an initial ωα
r
Μιιρ
p erio d of 5 minutes, w hen p r eviously calibrate d at α tem-
p erat ιι re of +25 ° C ±5 ° C . Section 5, P e
r formance
C h
eck
an d Calibration P roce d ure, gives α proce d ure for ch
ecking
an d adjusting t he Ty pe 576 with res p ect to t h
e
following
s p eci f ication .
T he Ty p e 576 MOD 301W is α stan d ar d Ty pe 576 wit
h -
o u t t he R ea dout Assembly . All t h e information contained
in t h is manual pe r taini n g to t h
e
R ea do u t
Assem
b ly
a n
d its
o p e r ation s h ould be dis r ega r d ed w h en use d i n co nj unction
wit h α mo d ifie d inst r ument .
Maximum
P ea k
Cu r rent ( N
ormal
Mo d e) ι
P ea k Cur r ent (Ste p
Ge n erator i n
P
ulse d
Ste ps Mo d
e)
Min imum Series
Resistance
Maximum Se r ies
R esistance
Series R esistance
Available
P
ea
k P ower W atts
Settings
Safety Inte
r
loc
k
Type576
10
Α

2 Α

0 .5 Α

0 .1 Α
At
least At least At least At least
20A

4
Α

1 Α

0 .2 Α
0 .3 Ω

6 .5 0

140 Ω

3 k Ω
65 k
Ω

1 .4 ΜΩ
6 .5 ΜΩ 6 .5 ΜΩ
0 .3 Ω , 1 .4 Ω ,6 .5 Ω ,30 Ω ,140 Ω ,
650 Ω , 3 k Ω , 14 k Ω , 65 k Ω , 300
k Ω , 1 .4 ΜΩ and 6 .5 ΜΩ , all with in
5°/ ο or 0 .1 Ω .
0 .1 W,0 .5
W, 2 .2 W, 10 W, 50 W
a
n
d
220 W . Derived f r om nominal
peak op
en circuit collector voltages
and nominal series
r esistance values
at n omi n al li n
e
voltage
.
Wh en MAX PEAK VO L TS switc h is
set to eit he r 75, 350 or 1500, α p ro-
tective box must be in place ove r
test termi
n als and its li d closed be-
Ch a r acteristic
P
erforma
n
ce
Swee p Modes Normal mo de : AC (at line fre-
q uency) ; positive-or negative-going
full wave rectified AC .
DCmo de : p ositive o r negative DC .
DC Mo d e R i pp le Νο -loa d :
2°/
ο
or less of voltage, or
0 .1 % or
less of f u ll range voltage .
Voltages
Acc u racy Peak op en circuit voltages on all
r anges wit h in +35% and -5% .
R anges 15 V
75 V 350 V 1500 V

Tektronix 576 Specifications

General

Brand	Tektronix
Model	576
Category	Measuring Instruments
Language	English