U6268B Datasheet, PDF (3/14 Pages) TEMIC Semiconductors – Side-Airbag Sensor Dual Interface

Figure 2-2. Functional Block Diagram
Slew rate V_out
5 V/ms at V_{S rising}
10 V/ms at V_{S falling}
V_S
Voltage Regulator
V_SC
V_S
I_SC-ch
V_SC
-
+
SC
+
-
I_SC-dis
Current mirror
ratio I_OCMx/I_OUTx
U6268B
V_S
I_OUT
Over
current
V_OUT
limi-
tation
ON OFF
OUTx
I_OUT-sink
ENABLEx
CLLx
Temperature
protection
high T > 165°C
low T < 145°C
Temp
High = ENABLE OUTx
Test mode
If ENABLE x = 9 V
then Temp = high
Temp
Latch
Reset Set
+
-
V_CLL-x
V_{ret_x}
-
+
-+
-+
V_OCM-det
V_OCM-lim
4.2 V
OCMx
I_OCM-sink
Current
limitation
+
-
3Ω
RETURNx
GND
I_ret-low
3
4808B–AUTO–09/05