U6268B Datasheet, PDF (8/12 Pages) TEMIC Semiconductors – Side-Airbag Sensor Dual Interface

U6268B
Parameters
Test Conditions / Pins
Enable input pull-down
current (to ensure output
disabled during power-off
and reset of micro-
controller)
Power dissipation
w ^{Power dissipation 1}
T_j 125°C
V_S = 18 V,
I_OUT1 = 28 mA,
I_OUT2 at overcurrent detection level
or
I_OUT2 = 28 mA,
I_OUT1 at overcurrent detection level
w ^{Power dissipation 2}
T_j 125°C
V_S = 18 V,
I_OUT1 = I_OUT2 = 28 mA
Selective overtemperature protection
Logic AND connected Switch off
with overcurrent detec- Switch on
tion (RETURNx, OUTx) Hysteresis
Time delay until over-
temperature shut-down
V_S = 25 V, T_amb = 125°C
OUT1 = OUT2 = GND
Symbol
I_Enable
Pdis1
Pdis2
Temp_off
Temp_on
Temp_hys
t_del
Min. Typ. Max. Unit
10
100 mA
1
W
0.75 W
155
165 °C
145
155 °C
5
20
°C
100
ms
Timing Diagrams
V_Supply
14.0 V
12.0 V
V_SC
10.7 V
8.7 V
V_OUTx
10.7 V
8.7 V
0.4 ms
0.2 ms
Figure 5. Variation of power supply
t
13841
8 (12)
TELEFUNKEN Semiconductors
Preliminary Information
Rev. A1, 21-May-97