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Features
* * * * * * * * * * * * *
Temperature and Voltage Compensated Frequency (Fully Integrated Oscillator) Warning Indication of Lamp Failure by Means of Frequency Doubling Voltage Dependence of the Indicator Lamps also Compensated for Lamp Failure Relay Output with High Current Capability and Low Saturation Voltage Frequency Doubling only During Direction Mode Temperature Compensated Threshold for Lamp Failure Detection Overvoltage and Undervoltage Shut Down of the Relay Outputs Quiescent Current I 10 A (Switches Open) EMI Protection According to ISO TR 7637/1, Test Level 4 (Exclusive Load Dump) Reversed Battery Protection by Means of a Serial Resistor and Relay Coil Connected Load Dump Protection 80 V with External Protection Components 12 V/24 V Application Package: SO16
Two-relay Flasher ATA6140
Electrostatic sensitive device. Observe precautions for handling.
Description
The integrated circuit ATA6140 is used in relay-controlled automotive flashers. With two output stages, each side of the vehicle is controlled separately. A left and a right direction indicator input with only a small control current makes switch contacts for small loads possible. The separate hazard warning input simplifies the construction of the hazard switch. Lamp outage is indicated by frequency doubling during direction mode. Thanks to the extreme low current consumption the ATA6140 can be connected to the battery directly. Figure 1. Block Diagram
Integrated oscillator
24V
Comp Power on and 5 V regulator Bias current POR
Current monitoring and short circuit protection Debounce Charge pump
Measure input
Battery sense Batt
Haz TS1G TS1B TS2G TS2B
Input Input Input Input Input
Debounce Debounce Debounce Debounce Debounce Comp Logic Over-, undervoltage and load dump detection Output stages
Ign Output left
Output right
IC-Ground
Test pin
LED
LED
Rev. 4560C-AUTO-10/03
Pin Configuration
Figure 2. Pinning SO16
TS1G TS1B TS2G TS2B Output right Batt Output left Ign 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 IC-Ground Test pin Battery sense 24V Measure input Haz LED LED
Pin Description
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol TS1G TS1B TS2G TS2B Output right Batt Output left Ign LED LED Haz Measure input 24V Battery sense Test pin IC-Ground Function Input left ground Input left battery Input right ground Input right battery Output right Battery force Output left Ignition LED outage left LED outage right Input hazard Measure input 24 V version Battery sense Test pin IC ground
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Absolute Maximum Ratings
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Parameters Supply voltage, pin 6 Ambient temperature range Junction temperature range Storage temperature range Symbol VVS Tamb Tj Tstg Value 6 to 40 -40 to +105 -40 to +150 -55 to +150 Unit V C C C
Thermal Resistance
Parameters Maximum thermal resistance SO16 Symbol RthJA Value 110 Unit K/W
Operating Range
Parameters Supply voltage, pin 6 Supply voltage, pin 6 (24 V version, pin 13 to GND) Symbol VVS VVS Value 6 to 24 18 to 33 Unit V V
Noise and Surge Immunity
Parameters Conducted interferences
(1)
Test Conditions ISO 7637-1 MIL-STD-883D Method 3015.7(2) MIL-STD-883D Method 3015.7 (pin 12 and pin 14) ESD - S. 5.3
Value Level 4 2 kV 1 kV 500 V
ESD (Human Body Model) ESD FCDM (Field induced Charge Device Model) Note:
1. At both outputs a relay of minimum 130 W should be added (for details see application circuits Figure 4 on page 7 to Figure 11 on page 11). 2. Exclusive pin 12 and pin 14.
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Electrical Characteristics
No. 1 1.1 1.1 2 2.1 2.1 2.2 2.2 3 3.1 3.2 3.3 Parameters Supply Voltage Range Supply voltage Supply voltage (24 V version) Current Consumption Quiescent current (VS) Quiescent current (VS, 24 V version) Supply current (VS) Supply current (VS, 24 V version) Undervoltage detection threshold Undervoltage detection delay time Overvoltage detection threshold Overvoltage detection threshold (24 V version) Relay Outputs Current output right Current output left Saturation voltage right Saturation voltage left Leakage current right Leakage current right (24 V version) Leakage current left Leakage current left (24 V version) Start delay time right Start delay time left Control Signal Thresholds Frequency doubling Frequency doubling Frequency doubling (24 V version) Short circuit detection VS = 9 V VS = 15 V VS = 24 V VS = 13.5 V 12 12 12 12 VTHFD9 VTHFD15 VTHFD24 VTHSC 425 42 50 45 53 65 475 525 48 57 mV mV mV mV A A A B 170 mA at 23C 170 mA at 23C 5 7 5 7 5 5 7 7 5 7 II5 II7 VSATR VSATL ILEAKR ILEAKR ILEAKL ILEAKL TDR TDL 10 10 170 170 1 1 3 6 3 6 40 40 mA mA V V A A A A ms ms A A A A A A A A A A Disabled in 24 V version (pin 13 to GND) 6 VVS < 16 V switches open VVS < 33 V switches open VVS < 16 V VVS < 33 V 6 6 6 6 IVS IVS IVS IVS 10 20 6 8 A A mA mA A A A A 6 6 VVS VVS 8 18 16 33 V V C C Test Conditions Pin Symbol Min. Typ. Max. Unit Type*
Under and Overvoltage Detection 6 VVU tdUV VVO VVO 6 2.5 18 8 10 22 V ms V A A A
3.3 4 4.1 4.2 4.3 4.4 4.5 4.5 4.6 4.6 4.7 4.8 5 5.1 5.2 5.2 5.3
6
V
A
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
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Electrical Characteristics (Continued)
No. 5.3 5.4 5.5 5.5 6 6.1 6.2 6.3 6.4 7 7.1 7.2 7.3 7.4 Parameters Short circuit detection (24 V version) Temperature coefficient Input current Input current (24 V version) LED Inputs Threshold left Threshold right Pull-up resistor left Pull-up resistor right Timing Basic frequency Bright period Bright period in failure mode Failure frequency FF 1/f = 706 ms FB -10.5 50 40 2.2 FB +12 % % % A A A A VS = 13.5 V VS = 13.5 V 9 10 9 10 VLEDL VLEDR RLEDL RLEDR 1 1 10 10 4.5 4.5 75 75 V V kW kW A A A A Test Conditions VS = 24 V -40C to +105C VS = 13.5 V VS = 24 V Pin 12 12 12 12 Symbol VTHSC CTH ITH ITH Min. Typ. 650 30 2 4 Max. Unit mV V/K A A Type* B C A A
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Short Circuit or Overload Detection Delay
Direction mode: 100 ms during the first bright phase, 50 ms during all following bright phases Hazard mode: 100 ms during all bright phases In case of overload the relay output switches off (not stored)
Bulb Outage Detection
The detection of bulb outage takes place during the bright phase. There is a delay time of typically 128 ms before ATA6140 measures the bulb current with a debounce period of 5 ms. After this time the inrush current dropped significantly. Application hint: It has to be considered that a slow relay contact may shorten the inrush current decay time and too high current would be measured and falsely an outage may not be detected. If operated with low supply voltage (e.g., 8 V) the relay speed could be even slower.
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Flasher Operating Mode
Input Left Ground Open Ground Open Open Ground Open Ground Ground Open Ground Open Open Ground Open Ground Ground VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT Input Right Ground Open Open Ground Open Open Ground Ground Ground Open Open Ground Open Open Ground Ground Ground VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT VBATT Input Left Ignition IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground Open Ignition Open Open Ignition Open Ignition Ignition Open Ignition Open Open Ignition Open Ignition Ignition Input Right Ignition IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground IC-Ground Open Open Ignition Open Open Ignition Ignition Ignition Open Open Ignition Open Open Ignition Ignition Ignition Input Hazard Open Open Open Ground Ground Ground Ground Open Open Open Open Ground Ground Ground Ground Open Open Open Open Ground Ground Ground Ground Open Open Open Open Ground Ground Ground Ground Open Left Lamps(1) x x x Flash Flash Flash Flash x x Flash x Flash Flash Flash Flash Flash x x x Flash Flash Flash Flash x x Flash x Flash Flash Flash Flash Flash Right Lamps(1) x x x Flash Flash Flash Flash x x x Flash Flash Flash Flash Flash Flash x x x Flash Flash Flash Flash x x x Flash Flash Flash Flash Flash Flash Frequency in Case of Lamp Failure(1) x x x Normal Normal Normal Normal x(2) x Double Double Normal Normal Normal Normal Normal x x x Normal Normal Normal Normal x(3) x Double Double Normal Normal Normal Normal Nnormal
Ignition Off Off Off Off Off Off Off Off On On On On On On On On Off Off Off Off Off Off Off Off On On On On On On On On Notes:
1. x = no flashing 2. If ignition is OFF, the input level cannot be sensed (the IC is in the sleep mode). For hazard mode use the input hazard. 3. For hazard mode use input hazard or switch to battery as shown in Figure 6 on page 8 and Figure 10 on page 10.
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ATA6140
Diagrams
Figure 3. Timing Diagram
Basic frequency Bright phase 50% Dark phase 50%
t/ms 706 353 100 128.5 127.5 50 ms - 353 ms => short circuit detection 100 ms - 353 ms => short circuit detection during first bright phase (turn signal mode) 100 ms - 353 ms => short circuit detection during each bright phase (hazard signal mode) 127.5 ms - 128.5 ms => lamp outage detection 0 50 Doubled frequency 40% 60%
0
50
100 128.5 127.5
321
t/ms
Figure 4. Application 1: 12 V Version, Turn Signal Switches to GND, Hazard Switch to GND
Ign Batt
10uF/63V IC Ground Batt Battery sense 18mOhm
3x 1.3k
Integrated oscillator
24V, nc
Comp Power on and 5 V regulator Bias current POR
Current monitoring and short circuit protection Debounce Charge pump Output stages Logic Over-, undervoltage and load dump detection
Measure input
Haz
10k 36k
1.5k Output right
Input Input Input
Debounce Debounce Debounce Debounce Debounce Comp
Ign
TS1G
Output left
TS2G
36k
Input Input
Test pin, nc IC-Ground
LED
LED
560Ohm/0.5W
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4560C-AUTO-10/03
Figure 5. Application 2: 12 V Version, Turn Signal Switches to Ignition, Hazard Switch to GND
Ign Batt
10uF/63V IC Ground
Batt
Battery sense 18mOhm
1.3k
Integrated oscillator
24V, nc
Comp Power on and 5 V regulator Bias current POR
Current monitoring and short circuit protection Debounce Charge pump Output stages Logic Over-, undervoltage and load dump detection
Measure input
Haz
10k
Input Input
Debounce Debounce Debounce Debounce Debounce Comp
Ign to IC-Ground Output right
TS1B
10k
Input Input
Output left
TS2B
10k
Input
2x 1.3k Test pin, nc
IC-Ground
LED
LED
560Ohm/0.5W
Figure 6. Application 3: 12 V Version, Turn Signal Switches to Ignition, Hazard Switch to Battery
Ign Batt
10uF/63V IC Ground
Batt
Battery sense
18mOhm
Haz
Integrated oscillator
24V nc
Comp Power on and 5 V regulator Bias current POR Input Input Debounce Debounce Debounce Debounce Debounce Comp
Test pin, nc IC-Ground LED LED
Current monitoring and short circuit protection Debounce Charge pump Output stages Logic Over-, undervoltage and load dump detection
Measure input
Ign to IC-Ground Output right
TS1B
10k
Input Input
Output left
TS2B
10k
Input
1.3k
1.3k
560Ohm/0.5W
8
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ATA6140
Figure 7. Application 4: 12 V Version, Turn Signal Switches to Ignition, Hazard Switch to GND, additional LED Outage
Ign Batt
10uF/63V IC Ground
Batt
Battery sense
1.3k 24V, nc
Integrated oscillator Comp Power on and 5 V regulator Bias current POR
18mOhm
Current monitoring and short circuit protection Debounce Charge pump Output stages Logic Over-, undervoltage and load dump detection
Measure input
Haz
10k
Input Input
Debounce Debounce Debounce Debounce Debounce Comp
Ign to IC-Ground Output right
TS1B
10k
Input Input
Output left
TS2B
10k
Input
2x 1.3k Test pin, nc
IC-Ground 560Ohm/0.5W
18k 18k
right
LED outage
left
Figure 8. Application 1: 24 V Version, Turn Signal Switches to GND, Hazard Switch to GND
Ign Batt
10uF/63V Batt Battery sense TBD Measure input
3x 2.7k
Integrated oscillator
24V
Comp Power on and 5 V regulator Bias current POR
Current monitoring and short circuit protection Debounce Charge pump
Haz
20k 36k
5.1k
Input Input Input
Debounce Debounce Debounce Debounce Debounce Comp Logic Over-, undervoltage and load dump detection Output stages
Output right
Ign
TS1G
Output left
TS2G
36k
Input Input
Test pin, nc
IC-Ground
LED
LED
560Ohm/0.5W
9
4560C-AUTO-10/03
Figure 9. Application 2: 24 V Version, Turn Signal Switches to Ignition, Hazard Switch to GND
Ign Batt
10uF/63V Batt Battery sense TBD
2.7k 24V
Integrated oscillator Comp Power on and 5 V regulator Bias current POR
20k
Current monitoring and short circuit protection Debounce Charge pump Output stages Logic Over-, undervoltage and load dump detection
Measure input
Haz
Input Input
Debounce Debounce Debounce Debounce Debounce Comp
Ign to IC-Ground Output right
TS1B
20k
Input Input
Output left
TS2B
20k
Input
2x 2.7k Test pin, nc
IC-Ground
LED
LED
560Ohm/0.5W
Figure 10. Application 3: 24 V Version, Turn Signal Switches to Ignition, Hazard Switch to Battery
Ign Batt
10uF/63V Batt Battery sense TBD
Integrated oscillator
Haz 24V
Comp Power on and 5 V regulator Bias current POR Input Input Debounce Debounce Debounce Debounce Debounce Comp
Test pin, nc IC-Ground LED LED
Current monitoring and short circuit protection Debounce Charge pump Output stages Logic Over-, undervoltage and load dump detection
Measure input
Ign to IC-Ground Output right
TS1B
20k
Input Input
Output left
TS2B
20k
Input
2x 2.7k
560Ohm/0.5W
10
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4560C-AUTO-10/03
ATA6140
Figure 11. Application 4: 24 V Version, Turn Signal Switches to Ignition, Hazard Switch to GND, additional LED Outage
Ign Batt
10uF/63V Batt 2.7k 24V Battery sense TBD Measure input
Integrated oscillator Comp Power on and 5 V regulator Bias current POR
Current monitoring and short circuit protection Debounce Charge pump Output stages Logic Over-, undervoltage and load dump detection
Haz
20k
Input Input
Debounce Debounce Debounce Debounce Debounce Comp
Ign to IC-Ground Output right
TS1B
20k
Input Input
Output left
TS2B
20k
Input
2x 2.7k Test pin, nc
IC-Ground 560Ohm/0.5W
18k 18k
right
LED outage
left
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4560C-AUTO-10/03
Ordering Information
Extended Type Number ATA6140-TBQ Package SO16 Remarks Taped and reeled
Package Information
Package SO16
Dimensions in mm
10.0 9.85 5.2 4.8 3.7
1.4 0.4 1.27 8.89 16 9 0.25 0.10 0.2 3.8 6.15 5.85
technical drawings according to DIN specifications
1
8
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ATA6140
4560C-AUTO-10/03
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4560C-AUTO-10/03

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