Technical Data Sheet

Kit Description
Rev. 1.00 / March 2013
ZLED7015
ZLED7015KIT-E1 Evaluation Kit Description
W i s e a n d E ffi c i e n t
LED Lighting ICs
ZLED7015
ZLED7015KIT-E1 Evaluation Kit
Important Notice
Restrictions in Use
ZMDI’s ZLED7015KIT-E1 Evaluation Kit hardware is designed for ZLED7015 demonstration, evaluation,
laboratory setup, and module development only. The ZLED7015KIT-E1 Evaluation Kit hardware must not be
used for module production or production test setups.
Disclaimer
Zentrum Mikroelektronik Dresden AG (ZMD AG) shall not be liable for any damages arising out of defects
resulting from
(i)
delivered hardware and software
(ii) non-observance of instructions contained in this manual and in any other documentation provided to
user, or
(iii) misuse, abuse, use under abnormal conditions or alteration by anyone other than ZMD AG.
To the extent permitted by law, ZMD AG hereby expressly disclaims and user expressly waives any and all
warranties, whether express, implied or statutory, including, without limitation, implied warranties of
merchantability and of fitness for a particular purpose, statutory warranty of non-infringement and any other
warranty that may arise by reason of usage of trade, custom or course of dealing.
Contents
1
2
3
4
5
6
Kit Contents ................................................................................................................................................... 4
Kit Description ............................................................................................................................................... 4
2.1. ZLED7015 Overview .............................................................................................................................. 4
2.2. ZLED7015KIT-E1 Evaluation Board Overview....................................................................................... 4
2.3. Connections ............................................................................................................................................ 5
2.4. Power Supply.......................................................................................................................................... 6
2.5. Circuit Operation ..................................................................................................................................... 6
2.6. Schematic Diagram ................................................................................................................................ 7
Ordering Information ..................................................................................................................................... 8
Related Documents ....................................................................................................................................... 8
Glossary ........................................................................................................................................................ 8
Document Revision History ........................................................................................................................... 9
Evaluation Kit
March 6, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
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ZLED7015
ZLED7015KIT-E1 Evaluation Kit
List of Figures
Figure 2.1
Figure 2.2
ZLED7015KIT-E1 Evaluation Board (Top View) ............................................................................. 5
ZLED7015KIT-E1 Schematic Diagram ............................................................................................ 7
List of Tables
Table 2.1
Connections for the Evaluation Board ............................................................................................. 5
For more information, contact ZMDI via [email protected].
Evaluation Kit
March 6, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
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ZLED7015
ZLED7015KIT-E1 Evaluation Kit
1
Kit Contents
The ZLED7015KIT-E1 Evaluation Kit includes the following:
 ZLED7015-E1 Evaluation Board v.X
 Five ZLED7015 samples, MSOP10 with thermal pad package
 ZLED7015KIT-E1 Evaluation Kit Start-up Information
 Kit Disclaimer
The ZLED7015KIT-E1 Evaluation Kit is fully assembled and ready for immediate operation.
2
2.1.
Kit Description
ZLED7015 Overview
The ZLED7015KIT-E1 Evaluation Kit provides a quick and easy method for evaluating the ZLED7015 within its
basic application circuit. Reading the ZLED7015 Data Sheet before using the Evaluation Kit is recommended for
understanding the operation of the ZLED7015 and the Evaluation Board.
The ZLED7015 is a constant current boost converter with an internal FET switch. The step-up converter topology
allows series connection of multiple white LEDs so that the LED currents are identical for uniform brightness. The
nominal output current can be set by an external resistor with the option to also dim the brightness of the LEDs
with a PWM signal or DC voltage. A low 0.3V feedback voltage minimizes power loss in the current setting
resistor for better efficiency. The over-voltage protection (OVP) circuit safeguards the chip and the system even if
the load is not connected. The ZLED7015 is available in an MSOP-10 package.
The ZLED7015 IC is designed for LED current drive applications of up to 1.8A.
The main features of ZLED7015 driver are
 6VDC to 30VDC supply voltage
 High efficiency: up to 95%
 PWM or DC voltage dimming control
 Fast 1.0MHz switching frequency
 Internal high power 35V MOSFET switch
 Adjustable over-voltage protection (including open LED string detection)
 Over-temperature protection
2.2.
ZLED7015KIT-E1 Evaluation Board Overview
The Evaluation Board contains a standard 4-pin terminal connector to allow the user to easily connect and supply
an LED’s board. The Evaluation Board also has two LED power pads (LED+ and LED-) to provide more flexibility
in supplying a power LED or LED string. A 10µH shielded inductor sets the nominal frequency around 300kHz.
The shielded inductor has been selected to minimize radiated EMI. The layout with any switching regulator is
crucial to minimize radiated EMI. This reference design keeps the critical track lengths to a minimum. Ground has
been maximized around critical areas.
Evaluation Kit
March 6, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
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ZLED7015
ZLED7015KIT-E1 Evaluation Kit
The Evaluation Board offers the following features and benefits:
 Wide input voltage range (see section 2.4).
 Standard 2.54mm 4-pin header for attaching of LEDs and additional duplicate SMD pads (LED- , LED+).
 Standard 2.54mm 2-pin male header and alternative duplicate SMD pads for power supply.
 Standard 2.54mm 3-pin male header for dimming the LED brightness with an external PWM signal.
 All devices are SMD and on the same side of the board (as shown in the top view given in Figure 2.1).
 Maximized power ground copper on top and bottom sides with thermal vias for good heat distribution.
 Track connecting R2 (current sense resistor) to ZLED7015 is as short as possible (sense tracks).
 The C3 filter capacitor and COUT are connected as close as possible to the LED output pins.
 The flyback current path is as short as possible to ensure system precision and efficiency.
Figure 2.1
ZLED7015KIT-E1 Evaluation Board (Top View)
J3: Positive Pin
for Power Supply and
Alternative VDC+ Pad
ZLED7015 Evaluation Board
J1: Negative Pins 1 & 2 for
LED String Connection
and Alternative LED- Pad
Caution: Ensure proper polarity.
J3: Negative Pin
for Power Supply and
Alternative VDC- Pad
Caution: Ensure proper polarity.
2.3.
ZLED7015 Pin 1
J2 Connector for PWM Dimming Signal
J1: Positive Pins 3 & 4
for LED String Connection
and Alternative LED+ Pad
Connections
Refer to Figure 2.1 for an illustration of the following set up for the Evaluation Board.
Table 2.1
Connections for the Evaluation Board
Connector
Description
J1
Standard 2.54mm 4-pin female header with the following connections.
Pins 1 and 2: Negative pole for voltage output to drive the LED string (also see LED- pad)
Pins 3 and 4: Positive pole for voltage output to drive the LED string (also see LED+ pad)
J2
Standard 2.54mm 3-pin male header for dimming the brightness of the LEDs with an external PWM signal
or DC voltage.
J3
Standard 2.54mm 2-pin male header for power supply. Input voltage range: 6VDC to 30VDC.
See section 2.4 for additional requirements.
Evaluation Kit
March 6, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
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ZLED7015
ZLED7015KIT-E1 Evaluation Kit
Connector
Description
VDC+
Positive pad for an optional alternative connection for the power supply (instead of J3).
VDC-
Negative pad for an optional alternative connection for the power supply (instead of J3).
LED+
Positive pad for an optional alternative connection for the positive ZLED7015 driver supply voltage (instead
of J1, pins 3 and 4).
LED-
Negative pad for an optional alternative connection for the negative ZLED7015 driver supply voltage
(instead of J1, pins 1 and 2).
2.4.
Power Supply
The Evaluation Board requires a DC power supply of 6V for the LED string, but it also must be 3V higher than
the normally working output voltage (the total forward voltage of the LED or the LED string).
!
Caution: Ensure proper polarity when making connections. The system is not reverse
polarity protected.
See section 2.3 for connection options for the power supply.
2.5.
Circuit Operation
The reference current on the Evaluation Board has been set to 100mA but can be adjusted by changing the Rset
set resistor according to the formula:
ILED = VFB / RSET, [A]
Where
ILED = Average output current through the LED(s) in amperes
VFB = Internal feedback reference voltage of the ZLED7015: approx. 0.3V
RSET= Nominal current output setting resistor, which is approx.3Ω on the Evaluation Board
For RSET = 3.0Ω  ILED = 0.1A
For detailed calculations about dimming control, PWM signal control, and setting the over-voltage protection level,
refer to the ZLED7015 datasheet.
Evaluation Kit
March 6, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
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ZLED7015
ZLED7015KIT-E1 Evaluation Kit
2.6.
Schematic Diagram
Figure 2.2
ZLED7015KIT-E1 Schematic Diagram
Evaluation Kit
March 6, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
7 of 9
ZLED7015
ZLED7015KIT-E1 Evaluation Kit
3
Ordering Information
Product Sales Code
Description
ZLED7015KIT-E1
ZLED7015KIT-E1 Evaluation Kit VX.x including 5 IC samples
4
Related Documents
Note “Rev_X.x” refers to the latest version of the document.
Document
File Name
ZLED7015 Datasheet
ZLED7015_DataSheet_Rev_X.x.pdf
Visit ZMDI’s website www.zmdi.com or contact your nearest sales office for the latest version of these documents.
5
Glossary
Term
Description
LED
Light Emitted Diode
EMI
Electromagnetic Interference
MOSFET
Metal–Oxide–Semiconductor Field Effect Transistor
PCB
Printed Circuit Board
PWM
Pulse Width Modulation
MSOP10
Mini Small Outline Package
Evaluation Kit
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
March 6, 2013
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ZLED7015
ZLED7015KIT-E1 Evaluation Kit
6
Document Revision History
Revision
Date
Description
1.00
March 6, 2013
First release.
Sales and Further Information
www.zmdi.com
[email protected]
Zentrum Mikroelektronik
Dresden AG
Global Headquarters
Grenzstrasse 28
01109 Dresden, Germany
ZMD America, Inc.
1525 McCarthy Blvd., #212
Milpitas, CA 95035-7453
USA
Central Office:
Phone +49.351.8822.0
Fax
+49.351.8822.600
USA Phone +855.275.9634
Phone +408.883.6310
Fax
+408.883.6358
European Technical Support
Phone +49.351.8822.7.772
Fax
+49.351.8822.87.772
DISCLAIMER: This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
Zentrum Mikroelektronik Dresden AG (ZMD AG) assumes no obligation regarding future manufacture unless otherwise agreed to in writing. The
information furnished hereby is believed to be true and accurate. However, under no circumstances shall ZMD AG be liable to any customer,
licensee, or any other third party for any special, indirect, incidental, or consequential damages of any kind or nature whatsoever arising out of or in
any way related to the furnishing, performance, or use of this technical data. ZMD AG hereby expressly disclaims any liability of ZMD AG to any
customer, licensee or any other third party, and any such customer, licensee and any other third party hereby waives any liability of ZMD AG for
any damages in connection with or arising out of the furnishing, performance or use of this technical data, whether based on contract, warranty,
tort (including negligence), strict liability, or otherwise.
European Sales (Stuttgart)
Phone +49.711.674517.55
Fax
+49.711.674517.87955
Evaluation Kit
March 6, 2013
Zentrum Mikroelektronik
Dresden AG, Japan Office
2nd Floor, Shinbashi Tokyu Bldg.
4-21-3, Shinbashi, Minato-ku
Tokyo, 105-0004
Japan
ZMD FAR EAST, Ltd.
3F, No. 51, Sec. 2,
Keelung Road
11052 Taipei
Taiwan
Phone +81.3.6895.7410
Fax
+81.3.6895.7301
Phone +886.2.2377.8189
Fax
+886.2.2377.8199
Zentrum Mikroelektronik
Dresden AG, Korea Office
U-space 1 Building
11th Floor, Unit JA-1102
670 Sampyeong-dong
Bundang-gu, Seongnam-si
Gyeonggi-do, 463-400
Korea
Phone +82.31.950.7679
Fax
+82.504.841.3026
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
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