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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 80V with External Protection Components 12V/24V Application Package: SO16
Two-relay Flasher ATA6140
Electrostatic sensitive device. Observe precautions for handling.
1. 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.
Rev. 4560E-AUTO-09/05
Figure 1-1.
Block Diagram
Integrated oscillator 24V Comp Power on and 5 V regulator Bias current POR Current monitoring and short circuit protection Debounce
Measure input
Battery sense Batt
Charge pump Ign Output stages Logic Over-, undervoltage and load dump detection Output left Output right
Haz TS1G TS1B TS2G TS2B
Input Input Input Input Input
Debounce Debounce Debounce Debounce Debounce Comp
IC-Ground
Test pin
LED
LED
2
ATA6140
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ATA6140
2. Pin Configuration
Figure 2-1. 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 BATTERY SENSE 24V MEASURE INPUT HAZ LED LED
Table 2-1.
Pin 1 2 3 4 5 6 7 8 9
Pin Description
Symbol TS1G TS1B TS2G TS2B OUTPUT RIGHT BATT OUTPUT LEFT IGN LED Direction In In In In Out Supply Out In In Function Input left turn switch to ground(1) Input left turn switch to battery(1) Input right turn switch to ground Input right turn switch to battery Relay driver right side Power battery voltage Battery force Relay driver left side Ignition input Open: regular frequency Switch to IC-ground: LED outage left side, external signal frequency doubling left side(2) Open: normal work Switch to IC-ground: LED outage right side, external signal frequency doubling right side(2) Input switch to hazard warning Voltage drop at the shunt resistor Switch to 24V version: Open enables overvoltage shut down function, connecting to IC-ground disables overvoltage shut down function Sense battery voltage for the internal comparator with high precision Either not connected or connected to IC-ground Supply IC-ground
10 11 12 13 14 15 16 Note:
LED HAZ MEASURE INPUT 24V BATTERY SENSE TEST PIN IC-GROUND
In In In In In
1. Use either switches to ground pin 1 and 3 or switches to battery pin 2 and 4 2. These pins can be connected optional by using LED flashlights to indicate outage. If a LED pin is on low level, frequency doubling is active, independent of pin MEASURE INPUT.
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3. 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
4. Thermal Resistance
Parameters Maximum thermal resistance SO16 Symbol RthJA Value 110 Unit K/W
5. Operating Range
Parameters Supply voltage, pin 6 Supply voltage, pin 6 (24V version, pin 13 to GND) Symbol VVS VVS Value 6 to 24 18 to 33 Unit V V
6. 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 500V
ESD (Human Body Model) ESD FCDM (Field induced Charge Device Model) Note:
1. At both outputs a relay of minimum 130 should be added (for details see application circuits Figure 11-2 on page 8 to Figure 11-9 on page 12). 2. Exclusive pin 12 and pin 14.
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ATA6140
7. 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 (24V version) Current Consumption Quiescent current (VS) Quiescent current (VS, 24V version) Supply current (VS) Supply current (VS, 24V version) Undervoltage detection threshold Undervoltage detection delay time Overvoltage detection threshold Overvoltage detection threshold (24V version) Relay Outputs Current output right Current output left Saturation voltage right 170 mA at 23C Saturation voltage left Leakage current right Leakage current right (24V version) Leakage current left Leakage current left (24V version) Start delay time right Start delay time left Control Signal Thresholds Frequency doubling Frequency doubling Frequency doubling (24V version) Short circuit detection Short circuit detection (24V version) VS = 9V VS = 15V VS = 24V VS = 13.5V VS = 24V 12 12 12 12 12 VTHFD9 VTHFD15 VTHFD24 VTHSC VTHSC 425 42 50 45 53 65 475 650 525 48 57 mV mV mV mV mV A A A B B 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 24V version (pin 13 to GND) 6 VVS < 16V switches open VVS < 33V switches open VVS < 16V VVS < 33V 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 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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4560E-AUTO-09/05
7. Electrical Characteristics (Continued)
No. 5.4 5.5 5.5 6 6.1 6.2 6.3 6.4 7 7.1 7.2 7.3 7.4 7.5 Parameters Input current Input current (24V 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 Debounce time Bulb outage detection 12 FF 3.6 5 1/f = 706 ms FB -10.5 50 40 2.2 x FB 6.2 ms +12 % % % A A A A VS = 13.5V VS = 13.5V 9 10 9 10 VLEDL VLEDR RLEDL RLEDR 1 1 10 10 4.5 4.5 75 75 V V k k A A A A Test Conditions VS = 13.5 V VS = 24V Pin 12 12 12 Symbol CTH ITH ITH Min. Typ. 30 2 4 Max. Unit V/K A A Type* C A A Temperature coefficient -40C to +105C
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
8. 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)
9. 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., 8V) the relay speed could be even slower.
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ATA6140
10. 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 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 11-4 on page 9 and Figure 11-8 on page 11. 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 Normal
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:
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4560E-AUTO-09/05
11. Diagrams
Figure 11-1. 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 11-2. Application 1: 12V Version, Turn Signal Switches to GND, Hazard Switch to GND
Ign 10 F/63V IC Ground Integrated oscillator 24V nc Comp Power on and 5V regulator Bias current POR 10k 36k
TS1G Batt
Batt
Battery sense Current monitoring and short circuit protection Debounce Measure input
18 m
3x 1.3k
Charge pump
1.5k
Ign
Haz
Input Input Input
Debounce Debounce Debounce Debounce Debounce Comp Logic Over-, undervoltage and load dump detection Output stages Output right
Output left
TS2G
36k
Input Input
Test pin, nc IC-Ground
LED
LED
560/0.5W
8
ATA6140
4560E-AUTO-09/05
ATA6140
Figure 11-3. Application 2: 12V Version, Turn Signal Switches to Ignition, Hazard Switch to GND
Ign Batt
10F/63V IC Ground Batt Integrated oscillator 24V, nc Comp Power on and 5V regulator Bias current POR 10k
Battery sense 18 m Current monitoring and short circuit protection Debounce Measure input
1.3k
Charge pump
Haz
Input Input
Debounce Debounce Debounce Debounce Debounce Comp Logic Over-, undervoltage and load dump detection Output stages
Ign to IC-Ground Output right Output left
TS1B
10k
Input Input
TS2B
10k
Input
2x 1.3k
Test pin, nc IC-Ground
LED
LED
560/0.5W
Figure 11-4. Application 3: 12V Version, Turn Signal Switches to Ignition, Hazard Switch to Battery
Ign Batt
10F/63V IC Ground Integrated oscillator 24V nc Comp Power on and 5V regulator
Batt
Battery sense Current monitoring and short circuit protection Measure input
18 m
Haz
Bias current POR
Debounce
Charge pump
Input Input 10k
TS1B
Debounce Debounce Debounce Debounce Debounce Comp Logic Over-, undervoltage and load dump detection Output stages
Ign to IC-Ground Output right
Input Input
Output left
10k
TS2B
Input
1.3k
1.3k Test pin, nc
IC-Ground
LED
LED
560/0.5W
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4560E-AUTO-09/05
Figure 11-5. Application 4: 12V Version, Turn Signal Switches to Ignition, Hazard Switch to GND, additional LED Outage
Ign Batt
10F/63V IC Ground
Integrated oscillator
Batt
Battery sense
Current monitoring and short circuit protection
18m
1.3k 24V, nc
Measure input
Comp Power on and 5V regulator Bias current POR
Debounce
Charge pump
Haz
10k
Input Input
Debounce Debounce Debounce Debounce Debounce Comp Logic Over-, undervoltage and load dump detection Output stages
Ign to IC-Ground Output right
TS1B
10k
Input Input
Output left
TS2B
10k
Input
2x 1.3k Test pin, nc
IC-Ground 560/0.5W
18k 18k
right
LED outage
left
Figure 11-6. Application 1: 24V Version, Turn Signal Switches to GND, Hazard Switch to GND
Ign Batt
10F/63V Batt 3x 2.7k Integrated oscillator 24V Comp Power on and 5V regulator Bias current POR 20k 36k Battery sense TBD Current monitoring and short circuit protection Debounce Measure input
Charge pump
5.1k
Ign
Haz
Input Input Input
Debounce Debounce Debounce Debounce Debounce Comp Logic Over-, undervoltage and load dump detection Output stages Output right
TS1G
Output left
TS2G
36k
Input Input
Test pin, nc
IC-Ground
LED
LED
560/0.5W
10
ATA6140
4560E-AUTO-09/05
ATA6140
Figure 11-7. Application 2: 24V Version, Turn Signal Switches to Ignition, Hazard Switch to GND
Ign Batt
10F/63V Batt
Integrated oscillator
Battery sense TBD
Current monitoring and short circuit protection
2.7k 24V
Measure input
Comp Power on and 5V regulator Bias current POR
Debounce
Charge pump
20k
Haz
Input Input
Debounce Debounce Debounce Debounce Debounce Comp Logic Over-, undervoltage and load dump detection Output stages
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
560/0.5W
Figure 11-8. Application 3: 24V Version, Turn Signal Switches to Ignition, Hazard Switch to Battery
Ign Batt
10F/63V Batt Integrated oscillator Haz 24V Comp Power on and 5V regulator Bias current POR Battery sense Current monitoring and short circuit protection Debounce Measure input TBD
Charge pump
Input Input 20k
TS1B
Debounce Debounce Debounce Debounce Debounce Comp Logic Over-, undervoltage and load dump detection Output stages
Ign to IC-Ground Output right Output left
Input Input
20k
TS2B
Input
2x 2.7k Test pin, nc
IC-Ground
LED
LED
560/0.5W
11
4560E-AUTO-09/05
Figure 11-9. Application 4: 24V Version, Turn Signal Switches to Ignition, Hazard Switch to GND, additional LED Outage
Ign Batt
10 F/63V Batt 2.7k 24V
Integrated oscillator Comp Power on and 5V regulator Bias current POR
Battery sense
Current monitoring and short circuit protection Debounce
TBD
Measure input
Charge pump
Haz
20k
Input Input
Debounce Debounce Debounce Debounce Debounce Comp Logic Over-, undervoltage and load dump detection Output stages
Ign to IC-Ground Output right Output left
TS1B
20k
Input Input
TS2B
20k
Input
2x 2.7k Test pin, nc
IC-Ground 560/0.5W
18k
right
18k
left
LED outage
12
ATA6140
4560E-AUTO-09/05
ATA6140
12. Ordering Information
Extended Type Number ATA6140-TBQY Package SO16 Remarks Taped and reeled, Pb-free
13. 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
14. Revision History
Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Revision No. 4560E-AUTO-09/05 History * Put datasheet in a new template * Pb-free logo on page 1 added * Ordering Information on page 13 changed
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4560E-AUTO-09/05
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4560E-AUTO-09/05

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