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/Title (EVBUM2211DB - NCV7691 Current Controller with Automotive LED Lamps in Sequencing Application Evaluation Board User's Manual)
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BroadVision, Inc.
2019-11-07T15:55:18+08:00
2019-11-07T15:54:32+08:00
2019-11-07T15:55:18+08:00
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EVBUM2211DB - NCV7691 Current Controller with Automotive LED Lamps in Sequencing Application Evaluation Board User's Manual
ON Semiconductor
Automotive turn signals are sometimes designed to
display an indicator in a fashion such that lights are activated
in a sequencing manner to show directional intent.
This evaluation note highlights the use of standard logic
integrated circuits with the NCV7691 devices to provide a
solution for a sequencing design. The system consists of the
LED current controllers (NCV7691 x 3), a voltage regulator
(NCV8664), a timer IC (NCV1455B), a shift register
(MC74HC164A), and a NAND gate (MC74HC20A).
The evaluation board has an on−board LED array to
highlight a sequencing solution for automotive indicators.
An additional 10−pin edge connector allows for connection
to external LEDs (often at higher current by modifying the
current programming resistors).
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