11

ATA6140

4560C–AUTO–10/03

Figure 11. Application 4: 24 V Version, Turn Signal Switches to Ignition, Hazard Switch to GND, additional LED Outage

Ign

Haz

Measure input

Batt

Battery sense

Output left

IC-Ground

TS1B

TS2B

right

left

LED outage

Output right

2 x

2.7k

Batt

10uF/63V

Ign to

IC-Ground

24V

Integrated

oscillator

POR

Logic

Power on and

5 V regulator

Current monitoring

and short circuit

protection

Charge

pump

Output

stages

Over-, undervoltage

and load dump

detection

Debounce

Debounce

Bias

current

Input

Comp

Comp

18k

18k

560Ohm/0.5W

TBD

2.7k

20k

20k

20k

Test pin, nc

Debounce

Input

Debounce

Input

Debounce

Input

Debounce

Input