TECHNICAL DATA

May. 2016. Rev. 00

Automotive Direction Indicator

The IL33193A is a new generation industry standard UAA1041 “Flasher”.

It has been developed for enhanced EMI sensitivity, system reliability, and

improved wiring simplification. The IL33193A is pin compatible with the

UAA1041 and UAA1041B in the standard application configuration as shown

in Figure 9, without lamp short circuit detection and using a 20 m shunt

resistor. The IL33193A has a standby mode of operation requiring very low

standby supply current and can be directly connected to the vehicle’s battery. It

includes an RF filter on the Fault detection pin (Pin 7) for EMI purposes. Fault

detection thresholds are reduced relative to those of the UAA1041, allowing a

lower shunt resistance value (20 m) to be used.

• Pin Compatible with the UAA1041

• Defective Lamp Detection Threshold

• RF Filter for EMI Purposes

• Load Dump Protection

• Double Battery Capability for Jump Start

• AEC-Q100 Qualified

IL33193A

ORDERING INFORMATION

IL33193AN

DIP

IL33193AD

SOP

PIN CONNECTIONS

1

2

3

4

5

6

7

8

V s s

O s c i l l a t o r

O s c i l l a t o r

V сс

R e l a y

S t a r t e r

F a u l t

D e t e c t o r

E n a b l e

1

2

3

4

5

6

7

8

O s c i l l a t o r

L a m p F a u lt

D e t e c t o r

RF

F i l t e r

R e f e r e n c e

V o lt a g e

R e la y

D r i v e r

D e t e c t o r

24V

33V

S t a r t e r

S W 1

S W 2

S i m p l i f i e d B l o c k D i a g r a m

T h is D e v ic e c o n t a in s 6 0 a c t iv e t r a n s is t o r s .