CL88020
120 VAC Offline LED Driver
Evaluation Board
User’s Guide
2017 Microchip Technology Inc.
DS50002611A
Note the following details of the code protection feature on Microchip devices:
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•
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© 2017, Microchip Technology Incorporated, All Rights Reserved.
ISBN: 978-1-5224-1675-3
== ISO/TS 16949 ==
DS50002611A-page 2
2017 Microchip Technology Inc.
CL88020 120 VAC OFFLINE LED DRIVER
EVALUATION BOARD USER’S GUIDE
Table of Contents
Preface ........................................................................................................................... 7
Introduction............................................................................................................ 7
Document Layout .................................................................................................. 7
Conventions Used in this Guide ............................................................................ 8
Warranty Registration............................................................................................ 8
Recommended Reading........................................................................................ 9
The Microchip Web Site ........................................................................................ 9
Product Change Notification Service..................................................................... 9
Customer Support ................................................................................................. 9
Document Revision History ................................................................................... 9
Chapter 1. Product Overview
1.1 Introduction ................................................................................................... 10
1.2 CL88020 Device Overview ........................................................................... 10
1.3 CL88020 Device Key Features .................................................................... 10
1.4 CL88020 120 VAC Offline LED Driver Evaluation Board .............................. 13
1.5 Evaluation Board Kit Contents ..................................................................... 14
Chapter 2. Installation and Operation
2.1 Introduction ................................................................................................... 15
2.2 Getting Started ............................................................................................. 16
2.3 Setup Procedure .......................................................................................... 16
2.4 How Does the CL88020 120 VAC Offline LED Driver
Evaluation Board Work? ......................................................................... 17
2.5 Board Testing ............................................................................................... 18
Appendix A. Schematic and Layouts
A.1 Introduction .................................................................................................. 19
A.2 Board Schematic - ADM00766 .................................................................... 20
A.3 Board Schematic - ADM00767 .................................................................... 21
A.4 ADM00766 – Top Silk ................................................................................... 22
A.5 ADM00766 – Top Copper And Silk ............................................................... 22
A.6 ADM00766 – Top Copper ............................................................................ 23
A.7 ADM00766 – Bottom Copper ....................................................................... 23
A.8 ADM00766 – Bottom Copper and Silk ......................................................... 24
A.9 ADM00766 – Bottom Silk ............................................................................. 24
A.10 ADM00767 – Top Silk ................................................................................ 25
A.11 ADM00767 – Top Copper and Silk ........................................................... 25
2017 Microchip Technology Inc.
DS50002611A-page 3
CL88020
120 VAC Offline LED Driver Evaluation Board User’s Guide
A.12 ADM00767 – Top Copper .......................................................................... 26
A.13 ADM00767 – Bottom Copper ..................................................................... 26
A.14 ADM00767 – Bottom Copper and Silk ....................................................... 27
A.15 ADM00767 – Bottom Silk ........................................................................... 27
Appendix B. Bill of Materials (BOM) ...........................................................................29
Appendix C. Waveforms
C.1 CL88020 120 VAC Offline LED Driver
Evaluation Board Typical Waveforms ..................................................... 31
Worldwide Sales and Service .....................................................................................39
DS50002611A-page 4
2017 Microchip Technology Inc.
Object of Declaration: CL88020 120 VAC Offline LED Driver Evaluation Board
EU Declaration of Conformity
This declaration of conformity is issued by the manufacturer.
The development/evaluation tool is designed to be used for research and development in a laboratory environment. This
development/evaluation tool is not a Finished Appliance, nor is it intended for incorporation into Finished Appliances that are made
commercially available as single functional units to end users under EU EMC Directive 2004/108/EC and as supported by the European
Commission's Guide for the EMC Directive 2004/108/EC (8th February 2010).
This development/evaluation tool complies with EU RoHS2 Directive 2011/65/EU.
This development/evaluation tool, when incorporating wireless and radio-telecom functionality, is in compliance with the essential
requirement and other relevant provisions of the R&TTE Directive 1999/5/EC and the FCC rules as stated in the declaration of conformity
provided in the module datasheet and the module product page available at www.microchip.com.
For information regarding the exclusive, limited warranties applicable to Microchip products, please see Microchip’s standard terms and
conditions of sale, which are printed on our sales documentation and available at www.microchip.com.
Signed for and on behalf of Microchip Technology Inc. at Chandler, Arizona, USA.
2017 Microchip Technology Inc.
DS40002611A-page 5
Automotive Networking Development Board User’s Guide
NOTES:
DS40002611A-page 6
2017 Microchip Technology Inc.
CL88020
120 VAC OFFLINE LED DRIVER
EVALUATION BOARD USER’S GUIDE
Preface
NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip tools and
documentation are constantly evolving to meet customer needs, so some actual dialogs
and/or tool descriptions may differ from those in this document. Please refer to our web site
(www.microchip.com) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each
page, in front of the page number. The numbering convention for the DS number is
“DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the
document.
For the most up-to-date information on development tools, see the MPLAB® IDE online help.
Select the Help menu, and then Topics to open a list of available online help files.
INTRODUCTION
This chapter contains general information that will be useful to know before using the
CL88020 120 VAC Offline LED Driver Evaluation Board. Items discussed in this chapter
include:
• Document Layout
• Conventions Used in this Guide
•
• Recommended Reading
• The Microchip Web Site
• Product Change Notification Service
• Customer Support
• Document Revision History
DOCUMENT LAYOUT
This document describes how to use the CL88020 120 VAC Offline LED Driver
Evaluation Board to evaluate and demonstrate the CL88020 LED driver capabilities.
The manual layout is as follows:
• Chapter 1. “Product Overview” – Important information about the CL88020 120
VAC Offline LED Driver Evaluation Board.
• Chapter 2. “CL88020 120 VAC Offline LED Driver Evaluation
BoardInstallation and Operation” – This chapter includes a detailed description
of each function of the demonstration board and instructions on how to use the
board.
• Appendix A. “Schematic and Layouts” – Shows the schematic and layout
diagrams for the CL88020 120 VAC Offline LED Driver Evaluation Board.
• Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the
CL88020 120 VAC Offline LED Driver Evaluation Board.
• Appendix C. “CL88020 120 VAC Offline LED Driver Evaluation Board User’s
GuideCL88020 120 VAC Offline LED Driver Evaluation Board User’s
2017 Microchip Technology Inc.
DS50002611A-page 7
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
GuideWaveforms” – Describes the waveforms for the CL88020 120 VAC Offline
LED Driver Evaluation Board.
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description
Arial font:
Italic characters
Initial caps
Quotes
Underlined, italic text with
right angle bracket
Bold characters
N‘Rnnnn
Text in angle brackets < >
Courier New font:
Plain Courier New
Represents
Referenced books
Emphasized text
A window
A dialog
A menu selection
A field name in a window or
dialog
A menu path
MPLAB® IDE User’s Guide
...is the only compiler...
the Output window
the Settings dialog
select Enable Programmer
“Save project before build”
A dialog button
A tab
A number in verilog format,
where N is the total number of
digits, R is the radix and n is a
digit.
A key on the keyboard
Click OK
Click the Power tab
4‘b0010, 2‘hF1
Italic Courier New
Sample source code
Filenames
File paths
Keywords
Command-line options
Bit values
Constants
A variable argument
Square brackets [ ]
Optional arguments
Curly brackets and pipe
character: { | }
Ellipses...
Choice of mutually exclusive
arguments; an OR selection
Replaces repeated text
Represents code supplied by
user
DS50002611A-page 8
Examples
File>Save
Press <Enter>, <F1>
#define START
autoexec.bat
c:\mcc18\h
_asm, _endasm, static
-Opa+, -Opa0, 1
0xFF, ‘A’
file.o, where file can be
any valid filename
mcc18 [options] file
[options]
errorlevel {0|1}
var_name [,
var_name...]
void main (void)
{ ...
}
2017 Microchip Technology Inc.
Preface
RECOMMENDED READING
This user’s guide describes how to use the CL88020 120 VAC Offline LED Driver
Evaluation Board. Other useful documents are listed below. The following Microchip
documents are available and recommended as supplemental reference resources.
• CL88020 Data Sheet – “Sequential Linear LED Driver with 4 Taps”
(DS20005753)
THE MICROCHIP WEB SITE
Microchip provides online support via our web site at www.microchip.com. This web
site is used as a means to make files and information easily available to customers.
Accessible by using your favorite Internet browser, the web site contains the following
information:
• Product Support – Data sheets and errata, application notes and sample
programs, design resources, user’s guides and hardware support documents,
latest software releases and archived software
• General Technical Support – Frequently Asked Questions (FAQs), technical
support requests, online discussion groups, Microchip consultant program
member listing
• Business of Microchip – Product selector and ordering guides, latest Microchip
press releases, listing of seminars and events, listings of Microchip sales offices,
distributors and factory representatives
PRODUCT CHANGE NOTIFICATION SERVICE
Microchip’s customer notification service helps keep customers current on Microchip
products. Subscribers will receive e-mail notifications whenever there are changes,
updates, revisions or errata related to a specified product family or development tool of
interest.
To register, access the Microchip web site at www.microchip.com, click on Product
Change Notification and follow the registration instructions.
CUSTOMER SUPPORT
Users of Microchip products can receive assistance through several channels:
•
•
•
•
Distributor or Representative
Local Sales Office
Field Application Engineer (FAE)
Technical Support
Customers should contact their distributor, representative or field application engineer
(FAE) for support. Local sales offices are also available to help customers. A listing of
sales offices and locations is included in the back of this document.
Technical support is available through the web site at:
http://www.microchip.com/support
DOCUMENT REVISION HISTORY
Revision A (May 2017)
• Initial Release of this Document.
2017 Microchip Technology Inc.
DS50002611A-page 9
CL88020
120 VAC OFFLINE LED DRIVER
EVALUATION BOARD USER’S GUIDE
Chapter 1. Product Overview
1.1
INTRODUCTION
This chapter provides an overview of the CL88020 120 VAC Offline LED Driver Evaluation Board and covers the following topics:
•
•
•
•
1.2
CL88020 Device Overview
CL88020 Device Key Features
CL88020 120 VAC Offline LED Driver Evaluation Board
Evaluation Board Kit Contents
CL88020 DEVICE OVERVIEW
The CL88020 LED driver integrated circuit (IC) is targeted at general LED lighting
products, such as A19 bulb with a maximum power rating of about 8.5W at 120 VAC
(60W incandescent equivalent bulbs).
1.3
CL88020 DEVICE KEY FEATURES
• Monolithic
- No external FETs, minimum driver component count
• No inductors
- Reduces BOM cost and circuit complexity
• Efficient operation
- Typical electrical efficiencies of 80% to 83% across the AC input voltage
range.
• No high frequencies
- Inherently low conducted EMI, no need for input filters
• Inherently dimmer compatible
- Works with most leading-edge and trailing-edge phase-cut dimmers
- TRIAC dimmer compatible
• 120 VAC only
- Reduces die size by optimizing output FET voltages and sizes
• Targeted for 8.5W output
- 60W incandescent equivalent (most popular), assuming minimum 94 Lm/W
efficacy
• 4 taps
- Fewer pins reduces footprint size
2017 Microchip Technology Inc.
DS50002611A-page 10
• Reduced light output ripple (optional)
- An external capacitor with four diodes provides lower light output ripple
- Use of a ceramic capacitor instead of a electrolytic means lamp life can match
the LED lifetime (more than 40,000 hours versus 5,000 hours)
- Provides continuous power to the driver
• Active line regulation
- Active circuitry provides better regulated output power over variations in AC
line voltage
- Between 0% to –12% line regulation typical
- Prevents driver from overheating at high AC line voltages
- Prevents excessive currents at low line
- Provides reasonable line regulation and efficient operation with only 4 taps
• Over temperature protection
- Optional
- An inexpensive external NTC thermistor provides remote temperature sensing. The thermistor may be located in close proximity to the LEDs to provide
nearly direct monitoring of LED temperature.
- OTP is linear (no on/off cycling)
- A widely available, 470 kΩ NTC provides 85°C maximum temperature
- Temperature adjustable via selection of NTC thermistor resistance
• Two current-setting resistors
- Different hold-up and direct AC currents lowers THD and output ripple
- Tap current ratios internally set
- Reduces component count
- Fewer pins
- Simplifies application design
- Single-point current control for reduced EMI
• 8-pin power SOIC
- Higher HV creepage distances
- Pinout arranged to minimize pin-to-pin voltage differentials
- Pinout accommodates single-layer PCB
• Available in a thermally-enhanced 8-Lead SOIC package with heat slug
2017 Microchip Technology Inc.
DS50002611A-page 11
2017 Microchip Technology Inc.
Figure 1-1 presents the typical CL88020 offline LED driver application circuit.
DS50002611A-page 12
FIGURE 1-1:
Typical CL88020 120 VAC Offline LED Driver Evaluation Board Circuit.
1.4
CL88020 120 VAC OFFLINE LED DRIVER EVALUATION BOARD
The CL88020 120 VAC Offline LED Driver Evaluation Board is a complete solution consisting of an LED Driver (ADM00766) and an LED Load Board (ADM00767) powered
directly from the 120VAC line and based on Microchip Technology’s CL88020 sequential linear LED driver. The application achieves efficient operation without using any
magnetics or conventional switching techniques and is a flexible solution that allows
users to design and to test their own LED Load solution. The included LED Load is
made with 10 LEDs. Since no high frequencies are present, it exhibits inherently low
conducted and radiated EMI without needing input filters or shielding. Because the current through the LEDs follows the AC input voltage, PFC circuitry is also not needed.
The CL88020 is inherently compatible with both leading-edge and trailing-edge dimmers, with no need for special circuitry to detect and respond to them.
The LED Load is provided on a double-layer 60 mm diameter FR4 PCB (0.6 mm thick)
mounted on a pin-fin heat sink. The LED Driver PCB (ADM00766) is made on 1.6 mm
standard double-layer FR4. The kit includes an 8-wire flat cable to connect the LED
Driver Board to the LED Load, and a black anodized pin fin heat sink with double-sided
adhesive thermal tape necessary to mount the LED Load Board on it. All circuitry and
hardware is provided, along with transient protection and overtemperature protection.
Just plug into a 120 VAC outlet (50 Hz or 60 Hz) to get started.
Figure 1-2 presents the CL88020 LED Driver Evaluation Board.
FIGURE 1-2:
CL88020 LED Driver Evaluation Board Source Board (ADM00766) - Top View.
2017 Microchip Technology Inc.
DS50002611A-page 13
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
Figure 1-3 presents the CL88020 LED Load Board.
.
FIGURE 1-3:
1.5
CL88020 LED Load Board (ADM00767) - Top View.
EVALUATION BOARD KIT CONTENTS
The CL88020 120 VAC Offline LED Driver Evaluation Board Kit includes:
•
•
•
•
CL88020 LED Driver Evaluation Board (ADM00766)
8-wire interconnection flat cable
4 nylon stand-offs with corresponding screw
Important Information Sheet
The CL88020 LED Load Board (ADM00767) is available for purchase from
www.microchipdirect.com. The CL88020 LED Load Board (ADM00767) kit includes:
•
•
•
•
DS50002611A-page 14
CL88020 LED Load Board (ADM00767)
LED Load pin fin heat sink
Thermal double-sided adhesive tape
Important Information Sheet
2017 Microchip Technology Inc.
Note: Since the power of the application is about 10W for longer operation of the LED
Load (more than 30 sec), attach the provided heat sink using the double adhesive thermal tape by following these steps:
1. Be sure that before you start, the surface of the heatsink and of the PCB to be
dry and clean (use a cotton made smooth material to clean if needed).
2. Detach the protection foil on the thermal tape from one side
3. Attach the open portion of the thermal tape on the base of the heatsink
4. Detach the second protection foil from the thermal tape
5. Attach the PCB (ADM00767) to the heat sink.
6. Slowly press on the top of the PCB to be sure that the thermal contact will be
made all-over the board
2017 Microchip Technology Inc.
DS50002611A-page 15
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
DS50002611A-page 16
2017 Microchip Technology Inc.
CL88020
120 VAC OFFLINE LED DRIVER
EVALUATION BOARD USER’S GUIDE
Chapter 2. CL88020 120 VAC Offline LED Driver
Evaluation Board Installation and Operation
2.1
INTRODUCTION
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide is intended to
drive a long string of low-current LEDs directly from the AC mains. A basic driver circuit
consists of CL88020, six resistors and a bridge rectifier. Two to four additional components are optional for various levels of transient protection, also with a low-price NTC
to assure remote overtemperature protection (OTP). No capacitors, EMI filters or
power factor correction circuits are needed.
A string of series/parallel LEDs is tapped at four locations. Four linear current regulators sink current at each tap through a single control point and are sequentially turned
on and off. High efficiency is achieved by shutting off upstream regulators when downstream regulators achieve regulation. This makes controlling overall input current easier than trying to control multiple current paths, thereby tracking the input sine wave
voltage. Voltage across each regulator is minimized when conducting, providing high
efficiency. It implements a self-commutation technique using only the tap currents; this
technique inherently provides smooth transitions from one regulator to the next, without
relying on tap voltages or the rectified AC to coordinate the transitions. The current
waveform can be tailored to optimize for input voltage range, active line/load regulation,
output power/current, efficiency, power factor, THD, dimmer compatibility and LED utilization. With the addition of an RC network, the driver is compatible with a wider range
of phase-cut dimmers. The data sheet includes a description of how the driver
operates, with design guidelines and examples.
2.1.1
CL88020 LED Driver Evaluation Board Features
The CL88020 LED Driver Evaluation Board (ADM00766) has the following features:
•
•
•
•
Input Voltage: 120 Vrms +/-15%, 50/60 Hz
Typical Output Capability: up to 130 mA
Efficiency: Over 83%
Max Output Power: 8.5W (depends on the cooling provided)
The CL88020 LED Load Board (ADM00767), has the following features:
• Contains 10 LEDs (GW P9LR31.EM) grouped in 4 taps
• An 8-wire flat cable input connector
• One NTC for overtemperature protection
2017 Microchip Technology Inc.
DS50002611A-page 17
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
2.2
GETTING STARTED
The CL88020 120 VAC Offline LED Driver Evaluation Board is fully tested to evaluate
and demonstrate the CL88020 LED Driver.
WARNING
The CL88020 LED Driver Evaluation Board (ADM00766) and CL88020 LED Load Board
(ADM00767) do NOT provide electrical isolation between the AC line and the lamp circuitry. Dangerous voltages are present when connected to the AC line. Exercise
caution!
Take into account the following recommendations before starting the setup process:
• Place the CL88020 LED Driver Evaluation Board and the LED Load assembly on
a non-conductive surface when connected to the AC line.
• Do not come into contact with any of the two demonstration unit boards while they
are connected to the AC line.
• Disconnect the demo units from the mains before performing any work on any of
them.
• Do not connect instruments having earth-referenced inputs, such as most
oscilloscopes.
• It is suggested that utility power for testing be provide from an AC source with a
floating output, and that differential voltage probes are used.
2.3
SETUP PROCEDURE
Powering the CL88020 120 VAC Offline LED Driver Evaluation Board is easy; the only
connections to be made are from ADM00766 LED driver to the LED Load ADM00767
assembled on a pin-fin heat sink, using the 8-wire flat cable provided, and from the LED
Driver Board to the AC line through a power cord.
Follow these steps:
1. Read the above recommendations and precautions.
2. Connect the CL88020 LED Driver Evaluation Board and the CL88020 LED Load
Board by means of the provided 8-wire flat cable, between J2-J3 connectors. It
is recommended to exercise caution, as the connectors on the flat cable are protected from being connected incorrectly.
3. Connect power cord on J1 on the LED Driver board, ADM00766. The Input connector J1 is placed on the left side of the LED Driver board, which is marked with
the inscription: AC.
4. Plug the power cord into a 120 VAC outlet and apply 120 VAC ±15%, 60 Hz. While
it is possible for the values to be below this range, it is recommended not to
exceed 144 VAC. In this case the Transient Protection feature is automatically
activated. Line frequency is not critical (50 Hz or 60 Hz).
A variable AC power supply is needed for testing and evaluation in the laboratory. The
power supply requires an output capability of at least 20W and a voltage range from 0
to 150 VAC. This can be obtained also from an autotransformer supplied from the mains
or an electronic AC/AC power supply (for example, the Chroma ATE Inc. 61500 series).
Note:
DS50002611A-page 18
Auto-transformers do not provide isolation from the utility mains.
2017 Microchip Technology Inc.
Figure 2-1 illustrates the connection between ADM00766 and ADM00767.
FIGURE 2-1:
2.4
Connection Diagram.
HOW DOES THE CL88020 120 VAC OFFLINE LED DRIVER EVALUATION
BOARD WORK?
The CL88020 120 VAC Offline LED Driver Evaluation Board is designed to control the
current through the four LED taps while maintaining high-input power factor (PF) and
low total harmonic distortion (THD). The CL88020 120 VAC Offline LED Driver Evaluation Board includes a CL88020 IC, which is a sequential linear LED driver controlling
four taps. Tap sequencing assures the regulators are turned on and off at the proper
times. Tap sequencing also controls the smooth transition from one regulator to the
next without generating EMI-causing glitches in input current. Two concepts are
involved:
• The first is single-point control. All tap currents pass through a single control point.
This makes controlling overall input current easier than trying to control multiple
current paths.
• The second concept is called self-commutation. Using only the tap currents themselves, this technique inherently provides smooth transitions from one regulator to
the next without relying on tap voltages or the rectified AC to coordinate the transitions. This avoids having to monitor high voltages and is more precise.
These two concepts work together to properly sequence the current regulators and to
provide glitch-free operation and thus avoiding conducted EMI.
The CL88020 120 VAC Offline LED Driver Evaluation Board and the CL88020 LED
Load Board contain all the circuitry necessary to perform, as well as overtemperature
protection (OTP), active line regulation (ALR) and output light ripple reduction.
The OTP protection operates linearly, gradually reducing output power as temperature
increases. This uses an inexpensive, external NTC thermistor to remotely sense LED
temperature. The thermistor is located on the LED load board, ADM00767, in close
proximity to the LEDs, providing near-direct LED temperature monitoring. The OTP
temperature is adjustable via selection of NTC resistance.
The ALR circuit maintains fairly constant output power over variations in AC line voltage. It is not a closed loop system that directly monitors and corrects output power.
Instead, it monitors the average voltage applied to the LED string and uses it to adjust
the reference voltage provided to the tap current regulators.
2017 Microchip Technology Inc.
DS50002611A-page 19
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
The Ripple Reduction Circuit (RRC), providing low output ripple, consists of a capacitor
and four diodes. The capacitor may be one or more paralleled capacitors, preferably
ceramic types to preserve long life expectancy for the LED application. The CL88020
with RRC operates in four phases: recharge, hold-up, direct and, under certain conditions, idle. All active current paths includes Segment 1 (TAP1), assuring uninterrupted
light output on it during all phases of operation, excluding idle. That is why it is important to have a much greater number of LEDs on TAP 1 compared to the rest of the taps,
in this case six. This reduces overall ripple, which provides about 0.15 flicker index.
For more information, see the CL88020 data sheet.
2.5
BOARD TESTING
To start testing the evaluation board, follow these steps:
1. Connect the input AC source and the output LED Load as shown in Figure 2-1.
2. Use an eye protection filter to check that all the 4 taps light up on the CL88020
LED Driver Evaluation Board.
3. Power the board at 120 VAC.
4. Verify each tap current through the LEDs. It should be within 65 mA to 134 mA.
It can be measured by separating each wire from the inter-connection 8-wire flat
cable between the CL88020 LED Driver Evaluation Board (ADM00766) and
CL88020 LED Load Board (ADM00767).
5. If a variable AC source is available, set the input voltage to any value between
100 VAC and 135 VAC. The LED Load delivers nearly constant lumen power.
6. Power-down the AC source.
DS50002611A-page 20
2017 Microchip Technology Inc.
CL88020
120 VAC OFFLINE LED DRIVER
EVALUATION BOARD USER’S GUIDE
Appendix A. Schematic and Layouts
A.1
INTRODUCTION
This appendix contains the following schematics and layouts for the CL88020 120 VAC
Offline LED Driver Evaluation Board and for the CL88020 LED Load Board:
• Board Schematic - ADM00766
• Board Schematic - ADM00767
• CL88020 LED Driver Evaluation Board
- ADM00766 – Top Silk
- ADM00766 – Top Copper And Silk
- ADM00766 – Top Copper
- ADM00766 – Bottom Copper
- ADM00766 – Bottom Copper and Silk
- ADM00766 – Bottom Silk
• CL88020 LED Load Board
- ADM00767 – Top Silk
- ADM00767 – Top Copper and Silk
- ADM00767 – Top Copper
- ADM00767 – Bottom Copper
- ADM00767 – Bottom Copper and Silk
- ADM00767 – Bottom Silk
2017 Microchip Technology Inc.
DS50002611A-page 21
BOARD SCHEMATIC - ADM00766
J2
TP3
TP1 CMB02070X1809GB200
R3
D1
240V
4032
10%
TP2
0R
1206
1%
GND
GND
~3
2-
~4
1
+
MOV1
2 1
TERMINAL 1x2
R1
CU4032K150G2K1
10R
2512
5%
J1
8 7 6 5 4 3 2 1
600V
1A
TP4
MB6S
TP12
1M
R4
C1
R6
4.7uF
25V
0805
150VAC
C4
4.7uF
25V
0805
R7
GND
100k
1206
1%
8
R8
7
IC1
221k
0805
1%
GND
R9
0R
1206
1%
6
5
TP13
TAP1
BIAS
TAP2
OTP
TAP3
R10
7.5R
0805
1%
R11
3.24R
0805
1%
GND
TP5
TP6
TP7
TP8
TAP4
D2
3
C2
15uF
100V
2220
C3
15uF
100V
2220
TP10
1
MMBD1503A
2 x C5750X7S2A156M250KB
2
3
R2
0R
1206
1%
TP14
GND
TP9
3
1
2
1
4
D3
MMBD1503A
GND
ALR
CS
2
CL88020
GND
TP11
CRM2512-JW-100ELF
28k
0805
1%
9
OSTHD020080
10R
2512
5%
0805 1%
R5
2017 Microchip Technology Inc.
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
DS50002611A-page 22
A.2
A.3
BOARD SCHEMATIC - ADM00767
LED1-10 Osram Duris S8 GW P9LR31.EM
LD10
LD1
LD2
LD3
WHITE
WHITE
WHITE
LD7
LD8
LD4
LD5
LD6
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
LD9
WHITE
TP16
TP6
TP8
-t
R1
470k
0603
TP7
TP5
NCP18WM474J03RB
TP3
TP15
8 7 6 5 4 3 2 1
2017 Microchip Technology Inc.
J3
Molex 0908140808
DS50002611A-page 23
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
A.4
ADM00766 – TOP SILK
A.5
ADM00766 – TOP COPPER AND SILK
DS50002611A-page 24
2017 Microchip Technology Inc.
A.6
ADM00766 – TOP COPPER
A.7
ADM00766 – BOTTOM COPPER
2017 Microchip Technology Inc.
DS50002611A-page 25
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
A.8
ADM00766 – BOTTOM COPPER AND SILK
A.9
ADM00766 – BOTTOM SILK
DS50002611A-page 26
2017 Microchip Technology Inc.
A.10 ADM00767 – TOP SILK
A.11 ADM00767 – TOP COPPER AND SILK
2017 Microchip Technology Inc.
DS50002611A-page 27
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
A.12 ADM00767 – TOP COPPER
A.13 ADM00767 – BOTTOM COPPER
DS50002611A-page 28
2017 Microchip Technology Inc.
A.14 ADM00767 – BOTTOM COPPER AND SILK
A.15 ADM00767 – BOTTOM SILK
2017 Microchip Technology Inc.
DS50002611A-page 29
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
NOTES:
DS50002611A-page 30
2017 Microchip Technology Inc.
CL88020 120 VAC OFFLINE LED DRIVER
EVALUATION BOARD USER’S GUIDE
Appendix B. Bill of Materials (BOM)
TABLE B-1:
Qty.
BILL OF MATERIALS (BOM) FOR CL88020 LED DRIVER EVALUATION BOARD
(ADM00766)(1)
Reference
Description
Manufacturer
Part Number
2
C1, C4
Capacitor ceramic 4.7 µF, 25V, 10%,
X7R, SMD, 0805
TDK Corporation
C2012X7R1E475K125AB
2
C2, C3
Capacitor ceramic,15 µF, 20%, X7S,
SMD, 2220
TDK Corporation
C5750X7S2A156M250KB
1
D1
Diode, bridge rectifier, MB6S, 1V, 0.5A,
600V, SMD, SOIC-4
Fairchild Semiconductor® MB6S
2
D2, D3
Diode, bridge rectifier, MMBD1503A 1.1V, Fairchild Semiconductor® MMBD1503A
200 mA, 200V, SMD, SOT-23-3
1
J1
Terminal block, 5.08 mm, 1x2, female,
16-22AWG, 12A, TH, R/A
1
J2
Header 8 positions, HDR-1.27, male, 1x8, Molex®
Tin, SMD, vertical
1
IC1
Microchip Analog CL88020 LED Driver,
SOIC-8
Microchip Technology Inc. CL88020T-E/SE
1
MOV1
Resistor varistor, 240V, 250 mW, SMD,
4032
EPCOS AG
3
R1, R2, R9
Resistor TKF, 0R, 1%, 1/4W, SMD, 1206 TT ElectronicsPlc.
On-Shore Technology,
Inc.
Panasonic®
OSTHD020080
908140808
CU4032K150G2K1
WCR1206-R005JI
2
R3, R4
Resistor TKF, 10R, 5%, 1W, SMD, 2512
1
R5
Resistor TKF, 1M, 1%, 1/8W, SMD, 0805 Panasonic® - BSG
ERJ-6ENF1004V
1
R6
Resistor TKF, 28 k 1%, 1/8W, SMD,
0805
Vishay Dale
CRCW080528K0FKEA
1
R7
Resistor TKF, 100 k 1%, 1/4W, SMD,
1206
Panasonic
ERJ-8ENF1003V
1
R8
Resistor TKF, 221 k 1%, 1/8W, SMD,
0805
Vishay/Dale
CRCW0805221KFKEA
1
R10
Resistor TKF, 7.5R, 1%, 1/8W, SMD,
0805
Vishay/Dale
CRCW08057R50FKEA
1
R11
Resistor TKF, 3.24R, 1%, 1/8W, SMD,
0805
Vishay/Dale
CRCW08053R24FKEA
2
TP1, TP2
Test points, multi-purpose, mini, black
Keystone Electronics
Corp.
5001
Note 1:
- BSG
ERJ-1TYJ100U
The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM
used in manufacturing uses all RoHS-compliant components.
2017 Microchip Technology Inc.
DS50002611A-page 31
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
TABLE B-2:
Qty.
BILL OF MATERIALS (BOM) FOR CL88020 LED DRIVER EVALUATION BOARD
(ADM00766) - MECHANICAL PARTS(1)
Reference
Description
Manufacturer
Part Number
Molex®
1
CBL1
Mechanical cable, Picoflex, IDT to
IDT, 8-COND, 250 mm
1
HS1
Mechanical HW, heat sink adhesive CTS® Corporation
tape, L19W19H6.3
APF19-19-06CB/A01
1
PCB
Printed Circuit Board - CL88020
LED Driver Evaluation Board
(ADM00766)
04-10559-R1
4
SCR1, SCR2,
SCR3, SCR4
Mechanical HW, screw #6-32 x 1/4”, B&F™ Fasteners Supply
PanHead, PHIL, nylon
4
STANDOFF1,
STANDOFF2,
STANDOFF3,
STANDOFF4
Mechanical HW, stand-off, #6-32 x
3/8", F, HEX, nylon
Microchip Technology Inc.
NY PMS 632 0025 PH
Keystone Electronics Corp. 1903B
The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM
used in manufacturing uses all RoHS-compliant components.
Note 1:
TABLE B-3:
Qty.
92315-0825
BILL OF MATERIALS (BOM) FOR CL88020 LED LOAD BOARD (ADM00767)(1)
Reference
Description
Manufacturer
Part Number
CON HDR-1.27, male, 1x8, Tin,
SMD, vertical
Molex®
0908140808
10 LD1, LD2, LD3,
LD4, LD5, LD6,
LD7, LD8, LD9,
LD10
Diode LED, white, 24.8V,
150 mA, 500 lm, 3000K, SMD,
L5W5H0.7
OSRAM Opto
Semiconductors GmbH.
GW P9LR31.EM-PPPR-XX57-1
1
Resistor thermistor, 470 k, 5%, Murata Electronics®
100 mW, 0603
1
J3
R1
The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM
used in manufacturing uses all RoHS-compliant components.
Note 1:
TABLE B-4:
Qty.
NCP18WM474J03RB
BILL OF MATERIALS (BOM) FOR CL88020 LED LOAD BOARD (ADM00767) MECHANICAL PARTS(1)
Reference
Description
Manufacturer
Part Number
1
HS2
Mechanical HW, heat sink,
D60 mm x H30 mm, 9.1W, black
MechaTronix
Kaohsiung Co., Ltd.
LPF60A30-5-B
1
PCB
Assembled Printed Circuit Board CL88020 LED Load Board
(ADM00767)
Microchip Technology Inc.
04-10560-R1
1
TAPE1
Mechanical HW, tape, thermal
sheet, 0.0625 mm, L254W254
Bergquist Company GmbH
BP100-0 008-00-1010
Note 1:
The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM
used in manufacturing uses all RoHS-compliant components.
DS50002611A-page 32
2017 Microchip Technology Inc.
CL88020
120 VAC OFFLINE LED DRIVER
EVALUATION BOARD USER’S GUIDE
Appendix C. CL88020
120 VAC Offline LED Driver
Evaluation Board User’s Guide Waveforms
C.1
CL88020 120 VAC OFF-LINE LED DRIVER EVALUATION BOARD TYPICAL
WAVEFORMS
C.1.1
FIGURE C-1:
Total Output Current on 110, 120, 138 VAC RMS Input
Total Output Current at 110 VAC.
2017 Microchip Technology Inc.
DS50002611A-page 33
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
FIGURE C-2:
Total Output Current at 120 VAC RMS.
FIGURE C-3:
Total Output Current at 138 VAC RMS.
DS50002611A-page 34
2017 Microchip Technology Inc.
C.1.2
TAPs 1, 2, 3, 4 Currents at 120 VAC RMS
FIGURE C-4:
TAP1 Current and Line Voltage at 120 VAC RMS.
FIGURE C-5:
TAP2 Current and Line Voltage at 120 VAC RMS.
2017 Microchip Technology Inc.
DS50002611A-page 35
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
FIGURE C-6:
TAP3 Current and Line Voltage at 120 VAC RMS.
FIGURE C-7:
TAP4 Current and Line Voltage at 120 VAC RMS.
DS50002611A-page 36
2017 Microchip Technology Inc.
C.1.3
Output Current on Startup at 110, 120 and 135 VAC RMS Input
FIGURE C-8:
Output Current on Startup at 110 VAC RMS Line Input.
FIGURE C-9:
Output Current on Startup at 120 VAC RMS Line Input.
2017 Microchip Technology Inc.
DS50002611A-page 37
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
FIGURE C-10:
Output Current on Startup at 135 VAC RMS Line Input.
C.1.4
FIGURE C-11:
DS50002611A-page 38
Input Current and Input Voltage Waveforms at 120 VAC RMS
Input
Input Current and Input Voltage Waveforms at 120 VAC RMS Input.
2017 Microchip Technology Inc.
C.1.5
Input Current Waveforms, Detail at 120 VAC RMS Input Line
Voltage
FIGURE C-12:
Input Current Waveform-TAPs Commutation.
FIGURE C-13:
Input Current Waveform - TAPs Commutation Detail.
2017 Microchip Technology Inc.
DS50002611A-page 39
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
C.1.6
FIGURE C-14:
Output Current with/without Ripple Reduction Circuit at
120 VAC RMS Input
Output Current with Ripple Reduction Circuit on 120 VAC RMS Input.
\
FIGURE C-15:
DS50002611A-page 40
Output Current without Ripple Reduction Circuit at 120 VAC RMS Input.
2017 Microchip Technology Inc.
C.2
Note:
BOARD SET TYPICAL MEASUREMENTS
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore, outside the warranted range.
13.0
12.0
Input Power (W)
11.0
10.0
9.0
8.0
7.0
95
100
105
110
115
120
125
130
135
140
145
Input Voltage (V RMS)
FIGURE C-16:
Input Power vs. Input Line Voltage.
13.0
12.0
Input Power (W)
11.0
10.0
9.0
8.0
7.0
95
100
105
110
115
120
125
130
135
140
145
Input Voltage (V RMS)
Input Power
FIGURE C-17:
2017 Microchip Technology Inc.
Input Power with RRC
Input Power vs. Input Line Voltage.
DS50002611A-page 41
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
1
0.95
PF
0.9
0.85
0.8
0.75
0.7
95
100
105
110
115
120
125
130
135
140
145
130
135
140
145
Input Voltage (V RMS)
FIGURE C-18:
Power Factor.
1
0.98
0.96
0.94
PF
0.92
0.9
0.88
0.86
0.84
0.82
0.8
95
100
105
110
115
120
125
Input Voltage (V RMS)
PF
FIGURE C-19:
DS50002611A-page 42
PF with RRC
Power Factor.
2017 Microchip Technology Inc.
12
11
10
9
Input Power (W)
8
7
6
5
4
3
2
1
0
24.0
26.0
28.0
30.0
32.0
34.0
36.0
38.0
40.0
42.0
44.0
46.0
48.0
50.0
NTC Resistance (kΩ)
FIGURE C-20:
Input Power vs. NTC Resistance.
1.725
1.65
1.575
1.5
1.425
1.35
V ALR (V)
1.275
1.2
1.125
1.05
0.975
0.9
0.825
0.75
0.675
0.6
95
100
105
110
115
120
125
130
135
140
145
Input Voltage (V RMS)
FIGURE C-21:
2017 Microchip Technology Inc.
VALR PIN vs. Input Line Voltage.
DS50002611A-page 43
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
12.0
11.0
10.0
Output Power (LED Load) (W)
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
95
100
105
110
115
120
125
130
135
140
145
Line Voltage (V RMS)
FIGURE C-22:
Output Power vs. Input Line Voltage.
12.0
11.0
10.0
Output Power (LED Load) (W)
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
95
100
105
110
115
120
125
130
135
140
145
Line Voltage (V RMS)
Output Power vs Input Line
FIGURE C-23:
DS50002611A-page 44
with Ripple Reduction Circuit
Output Power vs. Input Line Voltage.
2017 Microchip Technology Inc.
100.00
90.00
80.00
70.00
EFF (%)
60.00
50.00
40.00
30.00
20.00
10.00
0.00
95
100
105
110
115
120
125
130
135
140
145
Input Voltage (V RMS)
FIGURE C-24:
Efficiency.
.
100.00
90.00
80.00
70.00
EFF (%)
60.00
50.00
40.00
30.00
20.00
10.00
0.00
95
100
105
110
115
120
125
130
135
140
145
Input Voltage (V RMS)
EFF
FIGURE C-25:
2017 Microchip Technology Inc.
EFF with RRC
Efficiency.
DS50002611A-page 45
CL88020 120 VAC Offline LED Driver Evaluation Board User’s Guide
1400
1380
1360
Light Output (Lm)
1340
1320
1300
1280
1260
1240
1220
1200
105
110
115
120
125
130
135
Line Voltage (V RMS)
FIGURE C-26:
Light Output vs. Input Line Voltage.
128
126
LUMENs/W
124
122
120
118
116
105
110
115
120
125
130
135
Line Voltage (V RMS)
FIGURE C-27:
DS50002611A-page 46
Efficacy.
2017 Microchip Technology Inc.
Worldwide Sales and Service
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Corporate Office
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Technical Support:
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Web Address:
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Tel: 631-435-6000
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Tel: 408-735-9110
Tel: 408-436-4270
Canada - Toronto
Tel: 905-695-1980
Fax: 905-695-2078
DS50002611A-page 47
China - Dongguan
Tel: 86-769-8702-9880
China - Guangzhou
Tel: 86-20-8755-8029
China - Hangzhou
Tel: 86-571-8792-8115
Fax: 86-571-8792-8116
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Fax: 852-2401-3431
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Japan - Tokyo
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Fax: 82-2-558-5932 or
82-2-558-5934
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Tel: 65-6334-8870
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Tel: 886-3-5778-366
Fax: 886-3-5770-955
Taiwan - Kaohsiung
Tel: 886-7-213-7830
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Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
Taiwan - Taipei
Tel: 886-2-2508-8600
Fax: 886-2-2508-0102
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Tel: 86-29-8833-7252
Fax: 86-29-8833-7256
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Tel: 66-2-694-1351
Fax: 66-2-694-1350
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Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
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Tel: 972-9-744-7705
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Tel: 31-416-690399
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2017 Microchip Technology Inc.
11/07/16