This user guide supports the evaluation kit for the FL103M. It should be used in
conjunction with the FL103M datasheet as well as Fairchild’s application notes and
technical support team. Please visit Fairchild’s website at www.fairchildsemi.com
1. Introduction
.
This document describes the proposed solution for an universal input 8.4W LED ballast
using the FL103M PSR controller and the FQU2N60C QFET
is 85V
24V
– 265V
RMS
. This document contains a general description of FL103M, the power supply
MAX
specification, schematic, bill of materials, and the typical operating characteristics.
1.1. Description
This third-generation Primary-Side-Regulation (PSR) and highly integrated PWM
controller provides features to enhance the performance of LED illumination.
The proprietary topology, TRUECURRENT™, enables precise CC regulation and
simplified circuit design for LED illumination applications. The result is lower-cost and
smaller LED lighting compared to a conventional design or a linear transformer.
To minimize standby power consumption, the proprietary Green Mode provides off-time
modulation to linearly decrease PWM frequency under light-load conditions. Green
Mode assists the power supply in meeting the power conservation requirements.
By using the FL103, LED illumination can be implemented with few external
components and minimized cost.
1.2. Features
Low Standby Power: < 30mW
High-Voltage Startup
Few External Components
Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-
Feedback Circuitry
Green-Mode: Linearly-Decreasing PWM Frequency
Fixed PWM Frequency at 50kHz and 33kHz, Frequency Hopping to Solve EMI
Problems
Peak-Current-Mode Control in CV Mode
Cycle-by-Cycle Current Limiting
V
V
Over-Voltage Protection (OVP)
DD
Under-Voltage Lockout (UVLO)
DD
Adjustable Brownout Detector
Gate Output Maximum Voltage Clamped at 15V
Thermal Shutdown (TSD) Protection
Available in the 8-Lead SOIC Package
®
. The input voltage range
and there is one DC output with a constant current of 350mA at
AC Power Source: ES2000S by PSTATIONES
Power Analyzer: DZ4000 by YOKOGAWA
Electronic Load: PLZ303WH by KIKUSUI
Automatic Power Tester: ATS3000 by BOB
Multimeter: 2002 by KEITHLEY
Oscilloscope: 104Xi by LeCroy
EMI Test Receiver: ESCS30 by ROHDE & SCHWARZ
Two-Line V-Network: ENV216 by ROHDE & SCHWARZ
Thermometer: Therma CAM SC640 by FLIR SYSTEMS
LED: EHP-AX08EL/GT01H-P03(3W) by Everlight
Test Condition: Connect seven LEDs. Ripple and noise are measured by using 20MHz
bandwidth limited oscilloscope with a 10µF / 50V capacitor paralleled with a highfrequency 0.1µF capacitor across each output.
Table 9. Test Result
Input Voltage Ripple Source Voltage Ripple Current Ripple
6.8.Constant Current Tolerance Using Electric Load (CR)
Test Condition: Aging five seconds at minimum load and measure the output current and
output voltage. Each load / one second interval. Load is CR mode of electric load.
1.0.1 July 2011 Reduced PCB Type & Size: Square Bulb, 62 x 41 mm2 53 x 25 mm2
1.0.2 May 2012 Update Block Diagram & BOM
WARNING AND DISCLAIMER
Replace components on the Evaluation Board only with those parts shown on the parts list (or Bill of Materials) in the Users’ Guide. Contact an
authorized Fairchild representative with any questions.
This board is intended to be used by certified professionals, in a lab environment, following proper safety procedures. Use at your own risk. The
Evaluation board (or kit) is for demonstration purposes only and neither the Board nor this User’s Guide constitute a sales contract or create any kind
of warranty, whether express or implied, as to the applications or products involved. Fairchild warrantees that its products meet Fairchild’s published
specifications, but does not guarantee that its products work in any specific application. Fairchild reserves the right to make changes without notice to
any products described herein to improve reliability, function, or design. Either the applicable sales contract signed by Fairchild and Buyer or, if no
contract exists, Fairchild’s standard Terms and Conditions on the back of Fairchild invoices, govern the terms of sale of the products described herein.
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FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO
IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR
USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR
THE RIGHTS OF OTHERS.
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FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS
WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or systems which, (a)
are intended for surgical implant into the body, or (b) support or
sustain life, or (c) whose failure to perform when properly used in
accordance with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the user.
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Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website,
www.fairchildsemi.com, under Sales Support.
Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor products are experiencing
counterfeiting of their parts. Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation,
substandard performance, failed applications, and increased cost of production and manufacturing delays. Fairchild is taking strong measures to
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either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts, have full traceability, meet Fairchild's quality standards for
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EXPORT COMPLIANCE STATEMENT
These commodities, technology, or software were exported from the United States in accordance with the Export Administration Regulations for the
ultimate destination listed on the commercial invoice. Diversion contrary to U.S. law is prohibited.
U.S. origin products and products made with U.S. origin technology are subject to U.S Re-export laws. In the event of re-export, the user will be
responsible to ensure the appropriate U.S. export regulations are followed.
2. A critical component is any component of a life support device or
system whose failure to perform can be reasonably expected to
cause the failure of the life support device or system, or to affect its
safety or effectiveness.