MMBT404ALT1 Datasheet, PDF (2/2 Pages) Motorola, Inc – Chopper Transistor

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MMBT404ALT1
ELECTRICAL CHARACTERISTICS (T A = 25°C unless otherwise noted) (Continued)
Characteristic
Symbol
Min
Typ
ON CHARACTERISTICS
DC Current Gain
(I C = –12 mAdc, V CE = – 0.15 Vdc)
Collector–Emitter Saturation Voltage
(I C = –12mAdc, I B = – 0.4 mAdc)
(I C = – 24mAdc, I B = – 1.0 mAdc)
Base–Emitter Saturation Voltage
(I C = –12mAdc, I B = – 0.4 mAdc)
hFE
VCE(sat)
V BE(sat)
100
––
––
––
––
––
––
––
(I C = –24mAdc, I B = – 1.0 mAdc)
––
––
SMALL–SIGNAL CHARACTERISTICS
Output Capacitance
(V CB= – 6.0 Vdc, I E = 0, f = 1.0 MHz)
C obo
SWITCHING CHARACTERISTICS
Delay Time(VCC = –10Vdc, IC = –10 mVdc) (Figure 1) t d
Rise Time ( I B1 = –1.0 mAdc, I = BE(off) –14Vdc)
tr
Storage Time (V CC = –10 Vdc, I C = –10 mAdc)
ts
Fall Time (I B1 = I B2 = –1.0 mAdc)(Figure 1)
tf
––
––
—
43
—
180
—
675
—
160
Max
Unit
400
––
Vdc
– 0.15
– 0.20
Vdc
– 0.85
– 1.00
20
pF
—
ns
—
ns
—
ns
—
ns
V _BB
R _BB
1.0 k
0.1 µF
R_B
V _in
10 k
51
V _CC = –10 V
1.0 k
TO SCOPE
t ,t ,t
on d r
t , t and t
off s
f
V _in
(Volts)
–12
+20.6
V _BB
(Volts)
+1.4
–11.6
Voltages and resistor values shown are
for I = 10 mA, I /I = 10 and I = I
C
CB
B1
B2
Figure 1. Switching Time Test Circuit
O1–2/2