IL33193 Datasheet, PDF (7/8 Pages) Integral Corp. – Automotive Direction Indicator

IL33193
Vbat
1 ^SW2
SW1
R3
Starter
2
Detector
24V 33V
Reference
Voltage
RF
Filter
С1 ₃
4
Relay
Driver
Lamp Fault
Detector
Oscillator
R1
Relay 1
Rs
8
7
Ignition
Key
6
R4
R5
5
Waming
R2
EXTERNAL COMPONENTS
Rs = 20 mΩ
R1 = 75 kΩ
C1 = 5.6 µF
R2 = 2.2 kΩ
R3 = 220 Ω
10 kΩ ≤ R4 ≤ 47 kΩ
10 kΩ ≤ R5 ≤ 47 kΩ
Relay 1
L1, L2, L3, L4 = 21W
LD ⎯ Dashboard Indicator
Left
S1
Direction
LD L1 L2 ^Indicator L3
Figure 10. IL33193 Typical Application
Relay 2
Right
L4 LD
Application Information
Notes: 1.The flashing cycle is started by the dosing of switch S1.
2.The S1 switch position is sensed across the resistor R₂ and R_LAMP by the input (Pin8).
3. If the logic state at Pin6 is [0], the current through R₂ is off.
7