Current Controller for Automotive LED Lamps Evaluation Kit

Overview


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).

Evaluation/Development Tools

Product

Type

Ref. Design

Status

Part Used

Action

Current Controller for Automotive LED Lamps Evaluation Kit

Evaluation Kit

No

Active

$165

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Technical Documentation

Name / Description

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NCV7691GEVK_GERBER

0

Eval Board: Gerber

140.29 KB

EN

Eval Board: Gerber

May 02, 2014

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Eval Board: Manual

November 01, 2019

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Eval Board: Manual

November 01, 2019

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EVBUM2236/D

0

Eval Board: Manual

197.63 KB

EN

Eval Board: Manual

November 01, 2019

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NCV7691GEVK_TEST_PROCEDURE

0

Eval Board: Test Procedure

193.54 KB

EN

Eval Board: Test Procedure

May 02, 2014

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NCV7691GEVK_BOM_ROHS

2

Eval Board: BOM

190.46 KB

EN

Eval Board: BOM

August 19, 2014

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NCV7691GEVK_SCHEMATIC

0

Eval Board: Schematic

237.57 KB

EN

Eval Board: Schematic

May 02, 2014

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