Freescale Semiconductor, Inc.
this document by MC33193/D
Order
Automotive Direction
Indicator
The MC33193 is a new generation industry standard UAA1041 “Flasher”.
It has been developed for enhanced EMI sensitivity, system reliability, and
improved wiring simplification. The MC33193 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 MC33193 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 mΩ) to be used.
MC33193
AUTOMOTIVE
DIRECTION INDICATOR
SEMICONDUCTOR
TECHNICAL DATA
Freescale Semiconductor, Inc...
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Pin Compatible with the UAA1041
Defective Lamp Detection Threshold
RF Filter for EMI Purposes
Load Dump Protection
Double Battery Capability for Jump Start Protection
Internal Free Wheeling Diode Protection
Low Standby Current Mode
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
Simplified Block Diagram
PIN CONNECTIONS
1
SW2
SW1
Starter
8
VSS 1
VCC 2
Relay 3
Oscillator 4
8 Starter
7 Fault Detector
6 Enable
5 Oscillator
(Top View)
2
24 V 33 V
Detector
Reference
Voltage
RF
Filter
7
3
Relay
Driver
Lamp Fault
Detector
6
4
Oscillator
5
ORDERING INFORMATION
Device
Operating
Temperature Range
TA = –40° to 125°C
Package
SO–8
DIP–8
Rev 1
This device contains 60 active transistors.
MC33193D
MC33193P
©
Motorola, Inc. 1998
MOTOROLA ANALOG IC DEVICE
For More Information On This Product,
DATA
1
Go to: www.freescale.com
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
