IL33193-03N Datasheet, PDF (4/6 Pages) IK Semicon Co., Ltd – Automotive Direction Indicator

IL33193-03
Short Circuit Detector
Detects excessive current (Ish > 25 A) flowing in the shunt resistor R4. The detection takes place after a time delay
of t3 (t3 = 55 ms). In this case, the relay will be turned off. The circuit is reset by switching S1 to the off position.
Operation with Short Circuit Detection
Pin 6 has to be left open and a capacitor C2 has to be connected between Pin 1 and Pin 2.
Operation without Short Circuit Detection
Pin 6 has to be connected to Pin 2, and the use of capacitor C2 is not necessary.
Vbat
R2
C1
D1
01 ^{R2 08}
02
07
03
06
04
05
R1
К1
R4
R3
К1.1
S1
ЕLD ЕL1 ЕL2
ЕL3 ^{ЕL4 ЕLD}
С1 – 5.6 F
D1 – IL33193-03
ЕL1 - Е L4 – 21 W Turn Signal
Lamps
ЕLD – Dashboard Indicator
К1 – Relay
R1 – 75 к
R2 - 220 
R3 - 2.2 к
R4 - 30 m
Fig. 9. IL33193-03 Typical Application
February. 2012. rev. 01