Features • • • • Lamp Outage Indication for Car and Trailer Temperature and Supply Voltage Compensated Flashing Frequency Relay Driver Output with High Current Carrying Capacity and Low Saturation Voltage Minimum Lamp Load for Flasher Operation > 10W 1. Description The bipolar integrated circuit ATA2069 is designed for the use in relay-operated automotive flasher modules and makes it possible to detect the outage of flasher bulbs on the vehicle itself and also on a trailer. Vehicles with a trailer hook are equipped with additional pilot lamps in the dashboard. ATA2069 is off (i.e., the relay is deactivated) as long as the flasher switch (at contact +49a) is open. As soon as this switch is closed, the IC starts reliably with the bright phase. Flasher with Trailer Control ATA2069 There are two thresholds integrated: one threshold is defined to be 21 + 10W and is designed for the lamp outage detection of 1 of 2 lamps. If the current is below this threshold, the IC switches to frequency doubling, just like the standard flashers (e.g. U2043B). The other threshold is defined to be 42 + 10W and is designed for the outage detection of 1 of 3 lamps; if this happens, the additional trailer pilot lamp is switched off, but there is no frequency doubling. 50 ms after the start of the bright phase, the comparator measures the voltage drop at the shunt and latches this value for the rest of the bright phase. The output of this pilot lamp (pin 8) is short-circuit protected against GND. In case of a short circuit the external transistor is switched off after 52 ms for the rest of the current flasher cycle, but it is enabled again for the next cycle. 4917C–AUTO–10/07 Figure 1-1. Block Diagram VS 2 +49 VS - 57 mV C1 K1 5 32V VS - 111 mV 3 kΩ R1 R4 10Ω K4 Timing Unit K2 VS - 11 mV S R 6 Q VS/2 K3 1 40% of VS K5 3 7 4 R3 1.5 kΩ Relay 49a R2 100Ω 8 Shunt R6 VS R5 20 mΩ +49 150Ω 4W Pilot lamp trailer 21W trailer 2 5W 21W 21W 21W 21W 5W 21W trailer ATA2069 4917C–AUTO–10/07 ATA2069 2. Pin Configuration Figure 2-1. Pinning GND VS REL LD Table 2-1. Pin 1 2 3 4 8 7 6 5 OPL SI OSCR OSCC Pin Description Symbol Function 1 GND IC ground 2 VS Supply Voltage 3 REL Relay driver 4 LD Lamp failure detection 5 OSCC Cap. oscillator 6 OSCR Res. oscillator 7 SI Start input (49a) 8 OPL Output pilot lamp 3 4917C–AUTO–10/07 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 Pin Symbol Value Unit 2 VS 16.5 V TJ 150 °C Ambient temperature range Tamb –40 to +95 °C Storage temperature range Tstg –55 to +150 °C Thermal resistance junction ambient DIP8 Rthjc 110 K/W Thermal resistance junction ambient SO8 Rthjc 160 K/W Supply voltage Junction temperature 4. Electrical Characteristics Parameters Pin Symbol Supply voltage range 2 VS (+49a) Relay output current 3 IRel 300 mA 3 VRel 1 1.5 V V 3 IRelr 100 µA Relay saturation voltage Test Conditions I = 130 mA I = 250 mA Relay leakage current Min. Typ. Max. 9 to 15 Unit V Values for T = 25°C Start delay ton 10 ms 55 ms Delay time for output OPL OPL tDel 45 Switch off delay time output OPL in case of short circuit OPL tDel 1.5 2.4 ms Voltage threshold for short circuit detection at output OPL OPL Vth 36 44 % of Us Output current at OPL OPL IO 10 25 mA Saturation voltage at OPL OPL VSATO 300 mV Control signal threshold K1 for outage detection without trailer operation VS = 9V VS = 13V VS = 15V Vk1 47.5 54.2 58 50 57 61 52.2 59.9 64.1 mV mV mV Control signal threshold K4 for outage detection with trailer operation VS = 9V VS = 13V VS = 15V Vk4 96 109 115 98 111 118 100 113 120 mV mV mV Delta f1 –5 +5 % Frequency tolerance Bright period Basic frequency Delta f1 47 53 % Bright period Frequency doubling Delta f2 37 45 % Frequency increase Lamp outage f2 2.15 × f 2.3 × f Hz Leakage increase 49a to GND RI 5 kΩ Lamp load 4 PL 10 W ATA2069 4917C–AUTO–10/07 ATA2069 5. Ordering Information Extended Type Number Package Remarks ATA2069-3ASY DIP8 Tubed, Pb-free ATA2069-TASY SO8 Tubed, Pb-free ATA2069-TAQY SO8 Taped and reeled, Pb-free 6. Package Information Package: DIP8 Dimensions in mm 9.8 max. 7.62±0.15 9.6±0.1 0.3 B A 2.5 3.6±0.1 4.2±0.3 6.7 1.8 1.2±0.3 0.53±0.05 2.54 nom. 0.4 A 6.3±0.1 0.36 max. 3 x 2.54 = 7.62 nom. B 8.75±0.8 1.54 0.65 8 5 technical drawings according to DIN specifications 1 4 Drawing-No.: 6.543-5040.01-4 Issue: 1; 16.01.02 5 4917C–AUTO–10/07 Package: SO 8 Dimensions in mm 5±0.2 4.9±0.1 0.1+0.15 1.4 0.2 3.7±0.1 0.4 1.27 3.8±0.1 6±0.2 3.81 8 5 technical drawings according to DIN specifications 1 4 Drawing-No.: 6.541-5031.01-4 Issue: 1; 15.08.06 7. Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. 6 Revision No. History 4917C-AUTO-10/07 • Put datasheet in a new template • Section 5 “Ordering Information” on page 5 changed. 4917B-AUTO-03/06 • Section 5 “Ordering Information” on page 5 changed. 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