Intersil ISL78171EVAL1Z User Manual

ISL78171EVAL1Z Evaluation Board User Guide
Description
This quick start guide pertains to the ISL78171EVAL1Z
Evaluation Board. This board is populated with 60 LEDs in
6P10S (six parallel strings, each string consisting of 10 LEDs in
series) configuration to simplify evaluation and testing. The
device can function with or without an I
2
required to use I C control for the ISL78171EVAL1Z board, use
2
a generic I C interface adapter (not supplied with the
evaluation board kit) for the purpose of communication.
Please note that the slave address on the
hexadecimal 58. Please refer to the quick setup guides for
jumper settings and power-up instructions.

Specifications

This board has been configured and optimized for the following
operating conditions:
• Input voltage: 4.5V to 26.5V
• Output voltage: 32V typical and 40V max
• LED string current 20mA typical
PCB Details
Board dimension = 5.525x2.550inch
Number of layers = 2
Type = FR4
Copper thickness = 2oz
June 15, 2015
UG035.0
2
C controller. If it is
ISL78171 is
FIGURE 1. ISL78171EVAL1Z FRONT SIDE
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774

Key Features

• Integrated 40V boost converter
• 6 Precision current sinks, up to 50mA each
• Current matching ±0.7% typical
• Dimming modes: DC, internal PWM, direct PWM,
DC + Int/Dir PWM
• Typical dimming ratio exceeding 60,000:1 for DC + Int/Dir
PWM
• Phase shift control for internal PWM dimming
• 600kHz/800kHz/1.2MHz I
frequency
• Dynamic headroom control
References
ISL78171 Datasheet

Ordering Information

PART NUMBER
ISL78171EVAL1Z
|
Copyright Intersil Americas LLC 2015. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
User Guide 035
2
C selectable switching
DESCRIPTION
ISL78171 Evaluation Board