ON Semiconductor NCV887300LEDGEVB User Manual

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.
 Semiconductor Components Industries, LLC, 2013
May, 2013 − Rev. 2
Key Features
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Figure 1. NCV887300 LED Evaluation Board
1
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EVAL BOARD USER'S MANUAL
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
Publication Order Number:
EVBUM2181/D