User Guide

http://onsemi.com
3
1. Introduction
STR-DMS-NCV7694-GEVK provides an easy to use evaluation platform within the Strata Development Environment for the
NCV7694 Safety Controller for Infra-Red LED Illumination to Complement the Image Sensor for Automotive Applications from
ON Semiconductor. Strata gives the developer access to any collateral one may need, including datasheets, BOMs and schematics,
as well as providing a user interface for testing the performance of the NCV7694. This document will provide instructions on how
to use the evaluation board.
Features
Parameter
Description
Vin
9.5 V – 28 V (minimum Vin depends on the current through LEDs)
Size
Size: 21 mm x 21 mm x 12.7mm
Energy
40 mJ energy in SOA (more details in the following text)
Tank capacitor: 4 x T598D157M016ATE065 automotive grade (optimized for 21 x
21 mm form factor)
Illumination
1250mW/sr (IR LED: Osram SFH4725S)
Frequency
60 Hz (aligned with the 60fps from image sensor), FW of RSL10 & GUI set to
62Hz
Voltage LEDs
8.6 V max. (2 LEDs in series @ 5 A). Adjustable at DC-DC output. 4.8 V – 10 V
Current pulses
Short: 5 A peak for 500us / Long: 1 A for 4ms. Adjustable current: 0.7 - 5 A
Adjustable parameters
On Strata: IR LED current, DC-DC output voltage, PWM signal (FLASH emulator
for evaluation w/o camera)
On Hardware: Input for FLASH (from camera or from Strata (PWM))
On Image sensor (DevWare): FLASH signal (freq. and TON)
Strata
Adjustable parameters. Monitor ILED and DC/DC VOUT (calibrated).
Diagnostic pin from NCV7694 LED driver.
Compatible Image Sensor
Modules
AR0144, IVEC-0144 primarly (optimized LED FOV DMS). Possible with other
image sensors AR0234, AR0239, AR0820,... that use same FLASH mechanism.