ATA2069

ATA2069 ATMEL | Alldatasheet

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• 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 auto- motive 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. 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 detec- tion 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 compara- tor 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. Flasher with Trailer Control ATA2069 Rev. 4917B–AUTO–03/06

4917B–AUTO–03/06 ATA2069 Figure 1-1. Block Diagram VS - 57 mV 3 kΩ 150Ω 100Ω VS/2 Relay 734 8 RS Q VS - 11 mV +49 21W 21W 21W 21W5W 5W Pilot lamp trailer VS +49 VS VS - 111 mV 40% of VS Timing Unit R3 Shunt R6 R5 10Ω 32V 49a 1.5 kΩ 20 mΩ 21W trailer 21W trailer

4917B–AUTO–03/06 ATA2069 2. Pin Configuration Figure 2-1. Pinning GND VS REL LD OPL SI OSCR OSCC Table 2-1. Pin Description Pin 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

4917B–AUTO–03/06 ATA2069 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 Supply voltage 2 V S 16.5 V Junction temperature T J 150 °C Ambient temperature range T amb –40 to +95 °C Storage temperature range T stg –55 to +150 °C Thermal resistance junction ambient DIP8 Rthjc 110 K/W Thermal resistance junction ambient SO8 Rthjc 160 K/W 4. Electrical Characteristics Parameters Test Conditions Pin Symbol Min. Typ. Max. Unit Supply voltage range 2 V S (+49a) 9 to 15 V Relay output current 3 I Rel 300 mA Relay saturation voltage I = 130 mA I = 250 mA 3V Rel 1.5 V V Relay leakage current 3 I Relr 100 µA Values for T = 25°C Start delay t on 10 ms Delay time for output OPL OPL t Del 45 55 ms Switch off delay time output OPL in case of short circuit OPL t Del 1.5 2.4 ms Voltage threshold for short circuit detection at output OPL OPL V th 36 44 % of Us Output current at OPL OPL I O 10 25 mA Saturation voltage at OPL OPL V SATO 300 mV Control signal threshold K1 for outage detection without trailer operation V S = 9V VS = 13V VS = 15V Vk1 47.5 54.2 52.2 59.9 64.1 mV mV mV Control signal threshold K4 for outage detection with trailer operation V S = 9V VS = 13V VS = 15V Vk4 109 115 111 118 100 113 120 mV mV mV Frequency tolerance Bright period Bright period Frequency increase Leakage increase Lamp load Basic frequency Frequency doubling Lamp outage 49a to GND Delta f1 Delta f1 Delta f2 RI PL 2.15 × f 2.3 × f Hz kΩ W

4917B–AUTO–03/06 ATA2069 6. Package Information 5. Ordering Information Extended Type Number Package Remarks ATA2069-3AY DIP8 Tubed, Pb-free ATA2069-TAY SO8 Tubed, Pb-free ATA2069-TAG3Y SO8 Taped and reeled, Pb-free Dimensions in mm specifications according to DIN technical drawings 9.8 max. 2.54 nom. 0.3 0.36 max. B 0.4 A A B 1.54 0.65 9.6±0.1 7.62±0.15 3.6±0.1 4.2±0.3 1.8 6.7 2.5 1.2±0.3 0.53±0.05 6.3±0.1 Issue: 1; 16.01.02 Drawing-No.: 6.543-5040.01-4

4917B–AUTO–03/06 ATA2069 7. Revision History technical drawings according to DIN specifications Dimensions in mm 5.00 4.85 0.4 1.27 3.81 1.4 0.25 0.10 5.2 4.8 3.7 3.8 6.15 5.85 0.2 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 4917B-AUTO-03/06 • Table “Ordering Information” on page 5 changed.

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