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 Atmel(R) 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. Atmel 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 Atmel 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. Atmel 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 52ms for the rest of the current flasher cycle, but it is enabled again for the next cycle. 4917D-AUTO-03/11 Figure 1-1. Block Diagram VS 2 +49 VS - 57mV C1 K1 5 32V VS - 111mV 3k R1 R4 10 K4 Timing Unit K2 VS - 11mV S R 6 Q VS/2 K3 1 40% of VS K5 3 7 4 R3 1.5k Relay 49a R2 100 8 Shunt R6 VS R5 20m +49 150 4W Pilot lamp trailer 21W trailer 2 5W 21W 21W 21W 21W 5W 21W trailer Atmel ATA2069 4917D-AUTO-03/11 Atmel ATA2069 2. Pin Configuration Figure 2-1. Pinning GND VS REL LD Table 2-1. 1 2 3 4 8 7 6 5 OPL SI OSCR OSCC Pin Description Pin Symbol Function 1 GND IC ground 2 VS 3 REL Supply Voltage Relay driver 4 LD 5 OSCC Cap. oscillator Lamp failure detection 6 OSCR Res. oscillator 7 SI Start input (49a) 8 OPL Output pilot lamp 3 4917D-AUTO-03/11 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 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 Relay saturation voltage Test Conditions I = 130mA I = 250mA Relay leakage current Min. Typ. Max. Unit IRel 300 mA 3 VRel 1 1.5 V V 3 IRelr 100 A ton 10 ms 9 to 15 V Values for T = 25C Start delay Delay time for output OPL OPL tDel 45 55 ms 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 Saturation voltage at OPL OPL VSATO 25 mA 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 x f 2.3 x f Hz Leakage increase 49a to GND RI 5 k Lamp load 4 PL 10 W Atmel ATA2069 4917D-AUTO-03/11 Atmel ATA2069 5. Ordering Information Extended Type Number Package Remarks ATA2069-TAQY SO8 Taped and reeled, Pb-free 6. Package Information Package: SO 8 Dimensions in mm 50.2 4.90.1 0.1+0.15 1.4 0.2 3.70.1 0.4 1.27 3.80.1 60.2 3.81 8 5 technical drawings according to DIN specifications 1 4 Drawing-No.: 6.541-5031.01-4 Issue: 1; 15.08.06 5 4917D-AUTO-03/11 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 4917D-AUTO-03/11 * Section 3 "Absolute Maximum Ratings" on page 4 changed * Section 5 "Ordering Information" on page 5 changed * Section 6 "Package Information" on page 5 changed 4917C-AUTO-10/07 * Section 5 "Ordering Information" on page 5 changed 4917B-AUTO-03/06 * Section 5 "Ordering Information" on page 5 changed Atmel ATA2069 4917D-AUTO-03/11 Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 USA Tel: (+1)(408) 441-0311 Fax: (+1)(408) 487-2600 Atmel Asia Limited Unit 01-5 & 16, 19/F BEA Tower, Millennium City 5 418 Kwun Tong Road Kwun Tong, Kowloon HONG KONG Tel: (+852) 2245-6100 Fax: (+852) 2722-1369 Atmel Munich GmbH Business Campus Parkring 4 D-85748 Garching b. Munich GERMANY Tel: (+49) 89-31970-0 Fax: (+49) 89-3194621 Atmel 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 (c) 2011 Atmel Corporation. All rights reserved. / Rev.: 4917D-AUTO-03/11 Atmel(R), Atmel logo and combinations thereof, and others are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. 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