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PDF ATA2069 Data sheet ( Hoja de datos )
| Número de pieza | ATA2069 | |
| Descripción | Flasher | |
| Fabricantes | ATMEL Corporation | |
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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® circuit ATA2069 is designed for the use in relay-oper-
ated 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.
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 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 52ms for the
rest of the current flasher cycle, but it is enabled again for the next cycle.
Flasher with
Trailer Control
Atmel ATA2069
4917D–AUTO–03/11
1 page  
5. Ordering Information
Extended Type Number
ATA2069-TAQY
Package
SO8
6. Package Information
Package: SO 8
Dimensions in mm
4.9±0.1
0.4
1.27
3.81
85
14
Drawing-No.: 6.541-5031.01-4
Issue: 1; 15.08.06
Atmel ATA2069
Remarks
Taped and reeled, Pb-free
5±0.2
3.7±0.1
3.8±0.1
6±0.2
technical drawings
according to DIN
specifications
4917D–AUTO–03/11
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet ATA2069.PDF ] | |
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