ON Semiconductor NCV887300LEDGEVB, User Manual

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Semiconductor Components Industries, LLC, 2013
May, 2013 − Rev. 2
1 Publication Order Number:
EVBUM2181/D
NCV887300LEDGEVB
NCV887300 Automotive
Grade High‐frequency
Dimmable LED Boost
Controller Evaluation
Board User's Manual
Description
This NCV887300 evaluation board provides a convenient
way to evaluate a high-frequency LED Boost converter
design. No additional components are required, other than
dc supplies for the input and enable voltages. An external
clock can be used to synchronize the switching frequency. It
is configured as a 60 mA output current source with a 1 MHz
switching frequency over the typical 6 V to 18 V automotive
input voltage range. On board overvoltage protection is
provided. The design is 1000:1 dimming ratio capable. The
dimming frequency interface circuit may be configured to
accept an 1.8 V or a 3.3 V/5 V control signal.
Key Features

60 mA Output Current Source

1000:1 Dimming Ratio

Overvoltage Protection

1 MHz Switching Frequency
 Input Undervoltage Lockout

Internal Soft-Start

Wide Input Voltage of 6 V to 18 V

Regulates through Load Dump Conditions

External Clock Synchronization up to 1.1 MHz

Automotive Grade
Figure 1. NCV887300 LED Evaluation Board
http://onsemi.com
EVAL BOARD USER’S MANUAL