U842B
Interval Function without Park-Switch Feedback
If the park input of the circuit is not connected with the pause starts directly after the turn-on time of the relay is
park switch of the wiper motor (see figure 7), the interval over (see figure 8).
Wiper motor
Park
R2
1.5 kΩ
R3
1.5 kΩ
R1
180 Ω
Wash
pump
M
M
Run
R4
1
2
3
4
8
7
6
5
INT
10 kΩ
R5
WASH
47 kΩ
U842B
R9
SETINT
VR1
220 kΩ
R11
5.1 kΩ
1 kΩ
C1
C2
100 nF
R7
47 µF
13290
20 kΩ
Figure 7. Application circuit without park position feedback
V
Batt
t
INT
4
0V
t
4D
V
Batt
0V
t
t
OUT
5
6
t
4D
V
Batt
0V
PARK
ON
MOTOR
OFF
13303
Figure 8. Intermittent circuit function without park position feedback
6 (12)
TELEFUNKEN Semiconductors
Rev. A2, 03-Feb-97
TEMIC [ TEMIC SEMICONDUCTORS ]
