TECHNICAL DATA
IL33193
Automotive Direction Indicator
The IL33193 is a new generation industry standard UAA1041 “Flasher”.
It has been developed for enhanced EMI sensitivity, system reliability, and
improved wiring simplification. The IL33193 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 mΩ shunt
resistor. The IL33193 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 mW) to be used.
ORDERING INFORMATION
• Pin Compatible with the UAA1041
• Defective Lamp Detection Threshold
• RF Filter for EMI Purposes
IL33193N
IL33193D
DIP
SOIC
TA = -40° to 125°C for all packages
• Load Dump Protection
• Double Battery Capability for Jump Start
PIN CONNECTIONS
Vss
Vсс
Starter
1
8
Fault
Detector
2
3
4
7
6
5
Relay
Enable
Oscillator
Oscillator
Simplified Block Diagram
1
SW2
8
7
Starter
SW1
Reference
Voltage
RF
Filter
2
Detector
24V 33V
6
5
Relay
Driver
3
4
Lamp Fault
Detector
Oscillator
This Device contains 60 active transistors.
1
IKSEMICON [ IK SEMICON CO., LTD ]
