MPS404 Motorola Semiconductor Products, MPS404 Datasheet - Page 4

• Manufacturer Part Number: MPS404
• Description: Chopper Transistor
• Manufacturer: Motorola Semiconductor Products

MPS404A
4
2.0 k
1.0 k
100
700
500
300
200
100
t on , t d and t r
t off , t s and t f
7.0
5.0
70
50
30
20
10
70
50
30
20
–0.1
–1.0
Figure 13. Switching Time Test Circuit
Figure 9. Emitter–Collector “On” Resistance
NOTE: The dynamic resistance between the emitter and
NOTE:
NOTE:
V in
–2.0 –3.0
t d @ V BE(off) = –1.4 V
–0.2 –0.3
collector is measured with the device operated in
the Inverted Mode.
(Volts)
+20.6
0.1 F
–12
51
V in
Figure 11. Turn–On Time
I C , COLLECTOR CURRENT (mA)
V BB
–5.0 –7.0 –10
–0.5 –0.7
I B , BASE CURRENT (mA)
(Volts)
R BB
1.0 k
–11.6
V BB
+1.4
10 k
R B
–1.0
V CC = –10 V
Voltages and resistor values shown
are for I C = 10 mA. I C /I B = 10 and I B1
= I B2 . Resistor values changed to ob-
tain curves in Figures 11 and 12.
I e = 100 A RMS
f = 1.0 kHz
T J = 25 C
I E = 0
t r
1.0 k
–2.0 –3.0 –5.0 –7.0 –10
–20 –30
TO SCOPE
V CC = –10 V
I C /I B = 0
T J = 25 C
–50 –70
–100
Motorola Small–Signal Transistors, FETs and Diodes Device Data
1.0 k
700
500
300
200
100
MEASUREMENT PROCEDURE
C 1 is increased until the t off time of
the output waveform is decreased to
0.2 s, Q S is then calculated by
Q S = C 1 V in .
Q S3 or Q S7 by B–Line Electronics
or equivalent may also be used.
7.0
5.0
3.0
2.0
20
10
–0.05
–1.0
Figure 14. Stored Base Charge Test Circuit
–0.1
INPUT V in
–2.0 –3.0
(–6.0 V)
–0.2
V CC
t s
Figure 12. Turn–Off Time
V R , REVERSE VOLTAGE (VOLTS)
I C , COLLECTOR CURRENT (mA)
Figure 10. Capacitance
–0.5
t f
(0–250 pF)
–5.0 –7.0 –10
C1
(5.6 k )
R C (560 )
R B *
–1.0 –2.0
6.0 V
6.0 V
V out
0
VOLTAGE WAVEFORMS
–20 –30
C ib
–5.0
V in
T J = 25 C
>5.0 s
C ob
–10
V CC = –10 V
I C /I B = 0
I B1 = I B2
T J = 25 C
t r , t f < 15 ns
OUTPUT
–50 –70
–20
10%
t off
–100
–50