2N6251 データシートの表示（PDF） - Motorola => Freescale
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2N6251 Datasheet PDF : 6 Pages
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2N6251
VCEO(sus)
Table 1. Test Conditions for Dynamic Performance
VCER(sus)
ES/b
+6.0 V
0
39
1
2
+6.0 V
0
39
1
51
2
IB1 = 2.0 A
+10 V
0
50
1
50
4V
2
Lcoil = 42 mH
Rcoil = 0.7 Ω, fo = 60 Hz
VCC = 0 to 50 V
INDUCTIVE TEST CIRCUIT
TUT
1
2
1N4937
VCL
RS
0.1
Rcoil
Lcoil
VCC
Lcoil = 14 mH
Rcoil = 0.05 Ω
VCC = 0 to 50 V
fo = 60 Hz
Lcoil = 50 µH, VCC = 11.5 V
Rcoil = 0.2 Ω
OUTPUT WAVEFORMS
IC
IC(pk)
t1
tf
t1 Adjusted to
Obtain IC
t
[ Lcoil (ICpk)
t1
VCC
VCE
t
NOTE: SET IC(pk) TO OBTAIN IC = 200 mA AT VCEO(sus) EQUAL TO RATED VALUE.
NOTE: ADJUST VClamp VOLTAGE FOR VCEO(sus) RATED VALUE.
RESISTIVE SWITCHING
50 µF
+ 15 V
TIP41B
51
51
4.7
1
0.02
µF
2
IC = 10 A
PW ≈ 100 µs
tr ≤ 5 ns
tf ≤ 50 ns
DUTY CYCLE ≤ 2%
VCC = 200 V
RL = 20 Ω
RESISTIVE TEST CIRCUIT
+ 200 V
20
DC
CURRENT
PROBE
1
TUT
3
2
25
– 6.0 V
1.0
0.7 D = 0.5
0.5
0.3
0.2
0.2
0.1
0.1
0.07
0.05
0.05
0.02
0.03
0.02
0.01 SINGLE PULSE
ZθJC(t) = r(t) RθJC
P(pk)
RθJC = 1.0°C/W MAX
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t1
TJ(pk) – TC = P(pk) ZθJC(t)
t1
t2
DUTY CYCLE, D = t1/t2
0.01
0.01 0.02
0.05 0.1 0.2
0.5 1.0 2.0
5.0 10 20
t, TIME (ms)
Figure 2. Thermal Response
50 100 200
500 1.0 k
30
20
10
5.0
3.0
2.0
dc
TC = 25°C
TC = 100°C
1.0
20 µs
500 µs 100 µs
1.0
10 ms ms
50 ms
0.5
0.3
0.2
TC = 25°C UNLESS NOTED
BONDING WIRE LIMIT
0.1
THERMAL LIMIT, SINGLE PULSE
0.05
SECOND BREAKDOWN LIMIT
0.03
5.0 7.0 10
20 30 50 70 100 200 300 500
VCE, COLLECTOR-EMITTER VOLTAGE (VOLTS)
Figure 3. Active–Region Safe Operating Area
There are two limitations on the power handling ability of a
transistor: average junction temperature and second break-
down. Safe operating area curves indicate IC – VCE limits of
the transistor that must be observed for reliable operation;
i.e., the transistor must not be subjected to greater dissipa-
tion than the curves indicate.
The data of Figure 3 is based on TC = 25_C. TJ(pk) is
variable depending on power level. Second breakdown pulse
w limits are valid for duty cycles to 10% but must be derated
when TC 25_C. Second breakdown limitations do not
derate the same as thermal limitations. Allowable current at
the voltage shown on Figure 3 may be found at any case
temperature by using the appropriate curve on Figure 1.
TJ(pk) may be calculated from the data in Figure 2. At high
case temperatures, thermal limitations will reduce the power
that can be handled to values less than the limitations
imposed by second breakdown.
3–106
Motorola Bipolar Power Transistor Device Data
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