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 µA (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 Current monitoring and short circuit protection Comp Power on and 5 V regulator Bias current Debounce Measure input Battery sense Batt POR Haz Input Debounce TS1G Input Debounce TS1B Input Debounce TS2G Input Debounce TS2B Input Debounce Charge pump Ign Output stages Output left Output right Logic Over-, undervoltage and load dump detection IC-Ground Comp Test pin 2 LED LED ATA6140 4560E–AUTO–09/05 ATA6140 2. Pin Configuration Figure 2-1. Pinning SO16 TS1G TS1B TS2G TS2B OUTPUT RIGHT BATT OUTPUT LEFT IGN Table 2-1. 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 Pin Description Pin Symbol Direction Function 1 TS1G In Input left turn switch to ground(1) 2 TS1B In Input left turn switch to battery(1) 3 TS2G In Input right turn switch to ground 4 TS2B In Input right turn switch to battery 5 OUTPUT RIGHT Out Relay driver right side 6 BATT Supply Power battery voltage Battery force 7 OUTPUT LEFT Out 8 IGN In Ignition input 9 LED In Open: regular frequency Switch to IC-ground: LED outage left side, external signal frequency doubling left side(2) 10 LED In Open: normal work Switch to IC-ground: LED outage right side, external signal frequency doubling right side(2) 11 HAZ In Input switch to hazard warning 12 MEASURE INPUT In Voltage drop at the shunt resistor Relay driver left side 13 24V In Switch to 24V version: Open enables overvoltage shut down function, connecting to IC-ground disables overvoltage shut down function 14 BATTERY SENSE In Sense battery voltage for the internal comparator with high precision 15 TEST PIN 16 IC-GROUND Note: Either not connected or connected to IC-ground Supply IC-ground 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. 3 4560E–AUTO–09/05 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 Symbol Value Unit Supply voltage, pin 6 VVS 6 to 40 V Ambient temperature range Tamb –40 to +105 °C Junction temperature range Tj –40 to +150 °C Storage temperature range Tstg –55 to +150 °C Symbol Value Unit RthJA 110 K/W Symbol Value Unit Supply voltage, pin 6 VVS 6 to 24 V Supply voltage, pin 6 (24V version, pin 13 to GND) VVS 18 to 33 V 4. Thermal Resistance Parameters Maximum thermal resistance SO16 5. Operating Range Parameters 6. Noise and Surge Immunity Parameters Conducted interferences Test Conditions (1) Value ISO 7637-1 Level 4 (2) ESD (Human Body Model) ESD FCDM (Field induced Charge Device Model) Note: MIL-STD-883D Method 3015.7 2 kV MIL-STD-883D Method 3015.7 (pin 12 and pin 14) 1 kV ESD - S. 5.3 500V 1. At both outputs a relay of minimum 130 Ω 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. 4 ATA6140 4560E–AUTO–09/05 ATA6140 7. Electrical Characteristics No. Parameters Test Conditions Pin Symbol Min. Typ. Max. Unit Type* 1 Supply Voltage Range 1.1 Supply voltage 6 VVS 8 16 V C 1.1 Supply voltage (24V version) 6 VVS 18 33 V C 2 Current Consumption 2.1 Quiescent current (VS) VVS < 16V switches open 6 IVS 10 µA A 2.1 Quiescent current (VS, 24V version) VVS < 33V switches open 6 IVS 20 µA A 2.2 Supply current (VS) VVS < 16V 6 IVS 6 mA A 2.2 Supply current (VS, 24V version) VVS < 33V 6 IVS 8 mA A 6 VVU 6 8 V A tdUV 2.5 10 ms A 6 VVO 18 22 V A 6 VVO V A 3 Under and Overvoltage Detection 3.1 Undervoltage detection threshold 3.2 Undervoltage detection delay time 3.3 Overvoltage detection threshold 3.3 Overvoltage detection threshold (24V version) 4 Disabled in 24V version (pin 13 to GND) Relay Outputs 4.1 Current output right 5 II5 170 mA A 4.2 Current output left 7 II7 170 mA A 4.3 Saturation voltage right 170 mA at 23°C 5 VSATR 1 V A 4.4 Saturation voltage left 7 VSATL 1 V A 4.5 Leakage current right 5 ILEAKR 3 µA A 4.5 Leakage current right (24V version) 5 ILEAKR 6 µA A 4.6 Leakage current left 7 ILEAKL 3 µA A 4.6 Leakage current left (24V version) 7 ILEAKL 6 µA A 4.7 Start delay time right 5 TDR 10 40 ms A 4.8 Start delay time left 7 TDL 10 40 ms A 5 170 mA at 23°C Control Signal Thresholds 5.1 Frequency doubling VS = 9V 12 VTHFD9 42 45 48 mV A 5.2 Frequency doubling VS = 15V 12 VTHFD15 50 53 57 mV A 5.2 Frequency doubling (24V version) VS = 24V 12 VTHFD24 mV A 5.3 Short circuit detection VS = 13.5V 12 VTHSC mV B 5.3 Short circuit detection (24V version) VS = 24V 12 VTHSC mV B 65 425 475 525 650 *) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter 5 4560E–AUTO–09/05 7. Electrical Characteristics (Continued) No. Parameters Test Conditions Pin Symbol 5.4 Temperature coefficient –40°C to +105°C 12 CTH 5.5 Input current VS = 13.5 V 12 ITH 5.5 Input current (24V version) VS = 24V 12 ITH 6 Min. Typ. Max. Unit Type* µV/K C 2 µA A 4 µA A 30 LED Inputs 6.1 Threshold left VS = 13.5V 9 VLEDL 1 4.5 V A 6.2 Threshold right VS = 13.5V 10 VLEDR 1 4.5 V A 6.3 Pull-up resistor left 9 RLEDL 10 75 kΩ A 6.4 Pull-up resistor right 10 RLEDR 10 75 kΩ A FB –10.5 +12 % A 7 Timing 7.1 Basic frequency 1/f = 706 ms 7.2 Bright period 50 % A 7.3 Bright period in failure mode 40 % A 7.4 Failure frequency 7.5 Debounce time 2.2 × FB FF Bulb outage detection 12 3.6 5 6.2 A ms *) 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. 6 ATA6140 4560E–AUTO–09/05 ATA6140 10. Flasher Operating Mode Ignition Input Left Ground Input Right Ground Input Left Ignition Input Right Ignition Input Hazard Left Lamps(1) Right Lamps(1) Frequency in Case of Lamp Failure(1) Off Open Open IC-ground IC-ground Open x x x Off Ground Open IC-ground IC-ground Open x x x Off Open Ground IC-ground IC-ground Open x x x Off Open Open IC-ground IC-ground Ground Flash Flash Normal Off Ground Open IC-ground IC-ground Ground Flash Flash Normal Off Open Ground IC-ground IC-ground Ground Flash Flash Normal Off Ground Ground IC-ground IC-ground Ground Flash Flash Normal Off Ground Ground IC-ground IC-ground Open x x x(2) On Open Open IC-ground IC-ground Open x x x On Ground Open IC-ground IC-ground Open Flash x Double On Open Ground IC-ground IC-ground Open x Flash Double On Open Open IC-ground IC-ground Ground Flash Flash Normal On Ground Open IC-ground IC-ground Ground Flash Flash Normal On Open Ground IC-ground IC-ground Ground Flash Flash Normal On Ground Ground IC-ground IC-ground Ground Flash Flash Normal On Ground Ground IC-ground IC-ground Open Flash Flash Normal Off VBATT VBATT Open Open Open x x x Off VBATT VBATT Ignition Open Open x x x Off VBATT VBATT Open Ignition Open x x x Off VBATT VBATT Open Open Ground Flash Flash Normal Off VBATT VBATT Ignition Open Ground Flash Flash Normal Off VBATT VBATT Open Ignition Ground Flash Flash Normal Off VBATT VBATT Ignition Ignition Ground Flash Flash Normal Off VBATT VBATT Ignition Ignition Open x x x(3) On VBATT VBATT Open Open Open x x x On VBATT VBATT Ignition Open Open Flash x Double On VBATT VBATT Open Ignition Open x Flash Double On VBATT VBATT Open Open Ground Flash Flash Normal On VBATT VBATT Ignition Open Ground Flash Flash Normal On VBATT VBATT Open Ignition Ground Flash Flash Normal On VBATT VBATT Ignition Ignition Ground Flash Flash Normal VBATT VBATT Ignition Ignition Open Flash Flash Normal 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 11-4 on page 9 and Figure 11-8 on page 11. 7 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 60% 40% 0 50 100 128.5 127.5 t/ms 321 Figure 11-2. Application 1: 12V Version, Turn Signal Switches to GND, Hazard Switch to GND Ign Batt 10 µF/63V IC Ground Batt Battery sense Integrated oscillator 3x 1.3k 24V nc Current monitoring and short circuit protection Comp Power on and 5V regulator Bias current 10k Input Debounce Input Debounce Input Debounce Input Debounce Input Debounce Charge pump TS2G 36k 1.5k Ign Output stages 36k TS1G Measure input Debounce POR Haz 18 mΩ Output right Output left Logic Over-, undervoltage and load dump detection Comp Test pin, nc IC-Ground LED LED 560Ω/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 10µF/63V IC Ground Battery sense Batt 18 mΩ Integrated oscillator 1.3k 24V, nc Current monitoring and short circuit protection Comp Power on and 5V regulator Bias current Debounce POR 10k Haz 10k TS1B 10k TS2B Input Debounce Input Debounce Input Debounce Input Debounce Input Debounce 2x 1.3k Measure input Charge pump Ign to IC-Ground Output stages Output right Output left Logic Over-, undervoltage and load dump detection Comp LED Test pin, nc IC-Ground LED 560Ω/0.5W Figure 11-4. Application 3: 12V Version, Turn Signal Switches to Ignition, Hazard Switch to Battery Ign Batt 10µF/63V IC Ground Haz Batt Battery sense Integrated oscillator 24V nc Current monitoring and short circuit protection Comp Power on and 5V regulator Bias current 10k TS1B 10k TS2B 1.3k Debounce Input Debounce Input Debounce Input Debounce Input Debounce Measure input Debounce POR Input 18 mΩ Charge pump Output stages Ign to IC-Ground Output right Output left Logic Over-, undervoltage and load dump detection Comp 1.3k Test pin, nc IC-Ground LED LED 560Ω/0.5W 9 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 10µF/63V IC Ground Batt Battery sense Integrated oscillator 1.3k 24V, nc Current monitoring and short circuit protection Comp Power on and 5V regulator Bias current Haz 10k TS1B 10k TS2B Input Debounce Input Debounce Input Debounce Input Debounce Input Debounce Measure input Debounce POR 10k 18mΩ Charge pump Ign to IC-Ground Output right Output stages Output left Logic Over-, undervoltage and load dump detection Comp 2x 1.3k IC-Ground Test pin, nc 18k 560Ω/0.5W right LED outage 18k left Figure 11-6. Application 1: 24V Version, Turn Signal Switches to GND, Hazard Switch to GND Ign Batt 10µF/63V Battery sense Batt 3x 2.7k TBD Integrated oscillator 24V Current monitoring and short circuit protection Comp Power on and 5V regulator Bias current Debounce POR Haz TS1G TS2G 20k 36k 36k Input Debounce Input Debounce Input Debounce Input Debounce Input Debounce Measure input Charge pump 5.1k Ign Output stages Output right Output left Logic Over-, undervoltage and load dump detection Comp Test pin, nc IC-Ground LED LED 560Ω/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 10µF/63V Battery sense Batt TBD Integrated oscillator 2.7k 24V Current monitoring and short circuit protection Comp Power on and 5V regulator Bias current Debounce POR 20k Haz TS1B TS2B 20k 20k Input Debounce Input Debounce Input Debounce Input Debounce Input Debounce 2x 2.7k Measure input Charge pump Ign to IC-Ground Output stages Output right Output left Logic Over-, undervoltage and load dump detection Comp LED IC-Ground Test pin, nc LED 560Ω/0.5W Figure 11-8. Application 3: 24V Version, Turn Signal Switches to Ignition, Hazard Switch to Battery Batt Ign 10µF/63V Battery sense Batt Integrated oscillator Haz 24V Current monitoring and short circuit protection Comp Power on and 5V regulator Bias current 20k TS1B 20k TS2B Debounce Input Debounce Input Debounce Input Debounce Input Debounce Measure input Debounce POR Input TBD Charge pump Output stages Ign to IC-Ground Output right Output left Logic Over-, undervoltage and load dump detection Comp 2x 2.7k Test pin, nc IC-Ground LED LED 560Ω/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 µF/63V Batt Integrated oscillator 2.7k 24V Current monitoring and short circuit protection Comp Power on and 5V regulator Bias current TS1B TS2B 20k 20k 20k Input Debounce Input Debounce Input Debounce Input Debounce Input Debounce TBD Measure input Debounce POR Haz Battery sense Charge pump Ign to IC-Ground Output stages Output right Output left Logic Over-, undervoltage and load dump detection Comp 2x 2.7k Test pin, nc IC-Ground 18k right 560Ω/0.5W LED outage 18k left 12 ATA6140 4560E–AUTO–09/05 ATA6140 12. Ordering Information Extended Type Number Package ATA6140-TBQY Remarks SO16 Taped and reeled, Pb-free 13. Package Information Package SO16 Dimensions in mm 5.2 4.8 10.0 9.85 3.7 1.4 0.25 0.10 0.4 1.27 6.15 5.85 8.89 16 0.2 3.8 9 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. History 4560E-AUTO-09/05 • Put datasheet in a new template • Pb-free logo on page 1 added • Ordering Information on page 13 changed 13 4560E–AUTO–09/05 Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel: (41) 26-426-5555 Fax: (41) 26-426-5500 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel: (852) 2721-9778 Fax: (852) 2722-1369 Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel: (81) 3-3523-3551 Fax: (81) 3-3523-7581 Atmel Operations Memory 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany Tel: (49) 71-31-67-0 Fax: (49) 71-31-67-2340 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France Tel: (33) 2-40-18-18-18 Fax: (33) 2-40-18-19-60 ASIC/ASSP/Smart Cards 1150 East Cheyenne Mtn. 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