U6268B Datasheet, PDF (9/12 Pages) TEMIC Semiconductors – Side-Airbag Sensor Dual Interface

V_ENABLEx
5.0 V
I_OUTx
75 mA
15 mA
V_CLLx
5.0 V
U6268B
overcurrent
overcurrent
overtemperature
shut down
100 ms
Pause / pulse for example
150 ms
75 ms
(Pulse / pause time depends on power
disipation and R _thja)
Figure 6. Overcurrent protection
overcurrent
t
13842
V_ENABLEx
V_OUTx
13 V
30 µs
I_OUTx
40 mA
10 mA
V_OCMx
4.7 V
3.0 V
0.75 V
V_CLLx
5.0 V
0V
charge
time
C_OUT =
47 nF
overcurrent
200 mV
current
modulation
from
sensor
50 µs
discharge of
C_OUT = 47 nF
with internal current
150 µs
Figure 7. Data transmission
t
13840
TELEFUNKEN Semiconductors
9 (12)
Rev. A1, 21-May-97
Preliminary Information