u6268b ATMEL Corporation, u6268b Datasheet - Page 12

• Manufacturer Part Number: u6268b
• Description: U6268b Side-airbag Sensor Dual Interface
• Manufacturer: ATMEL Corporation

Figure 7-3.
Figure 7-4.
12
U6268B
Data Transmission
Application Circuit
I
OUTx
V
V
V
V
OUTx
ENABLEx
OCMx
CLLx
60 mA
40 mA
10 mA
0.75 V
4.7 V
3.0 V
5.0 V
13 V
0 V
I/O
I/O
I/O
I/O
overcurrent
overcurrent
charge
C
47 nF
V
V
time
OUT
30 µs
CC
CC
= 5 V
= 5 V
=
750
750
14
15
13
11
10
12
Enable2
CLL1
Enable1
CLL2
OCM2
OCM1
1, 8,
9, 16
GND
U6268B
Interface1
Interface2
from sensor
modulation
4
V
current
50 µs
S
+V
Batt
100 nF
6
SC
Return2
Return1
22 nF
Out2
Out1
200 mV
22 mF
3
2
5
7
47 nF
47 nF
47 nF
47 nF
discharge of C
with internal current
Sensor 1
Sensor 2
150 µs
OUT
5 V
5 V
= 47 nF
t
4808B–AUTO–09/05