Fairchild FEB-L015 service manual

User Guide for

FEB_L015

Evaluation Board

Universal Input 8.4W LED Ballast Controller

Featured Fairchild Product: FL103M

Direct questions or comments

about this evaluation board to:

“Worldwide Direct Support”

Fairchild Semiconductor.com

© 2012 Fairchild Semiconductor Corporation FEBL015 • Rev. 1.0.2

Table of Contents

1. Introduction ............................................................................................................................... 3

1.1. Description ....................................................................................................................... 3

1.2. Features ............................................................................................................................ 3

1.3. Internal Block Diagram .................................................................................................... 4

2. General Specification for Evaluation Board ............................................................................. 5

2.1. Photographs of the Evaluation Board ............................................................................... 6

2.2. Printed Circuit Board ....................................................................................................... 7

2.3. Schematic ......................................................................................................................... 8

3. Bill of Materials ........................................................................................................................ 9

4. Transformer and Winding Specifications ............................................................................... 10

5. Test Conditions & Test Equipment......................................................................................... 11

6. Performance of Evaluation Board ........................................................................................... 12

6.1. Input Power at Minimum Load Condition ..................................................................... 12

6.2. Startup Time ................................................................................................................... 13

6.3. Input Current .................................................................................................................. 14

6.4. Output Ripple & Noise ................................................................................................... 15

6.5. Short-Circuit Protection (SCP)....................................................................................... 16

6.6. Voltage & Current Stress on MOSFET .......................................................................... 17

6.7. Voltage & Current Stress on Secondary Rectifier ......................................................... 20

6.8. Constant Current Tolerance Using Electric Load (CR) ................................................. 23

6.9. Constant Current Tolerance Using Electric Load (CV) ................................................. 24

6.10. Constant Current Toleration Using LED Load........................................................... 25

6.11. Efficiency.................................................................................................................... 26

6.12. Temperature ................................................................................................................ 27

6.13. EMI ............................................................................................................................. 28

7. Revision History ..................................................................................................................... 30

© 2012 Fairchild Semiconductor Corporation 2 FEBL015 • Rev. 1.0.2

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

RMS

© 2012 Fairchild Semiconductor Corporation 3 FEBL015 • Rev. 1.0.2

1.3. Internal Block Diagram

Figure 1. Block Diagram

© 2012 Fairchild Semiconductor Corporation 4 FEBL015 • Rev. 1.0.2

2. General Specification for Evaluation Board

All data of the evaluation board were measured under a condition where the board was
enclosed in a case and external temperature was around 25°C.

Table 1. Evaluation Board Specifications for LED Lighting Bulb

Input

Output

Efficiency

Conduction EMI

Board Dimensions

Main Controller

Frequency Range

FL103M

50Hz ~ 60Hz

Voltage Range

Power
Voltage
Current

< 87%

Meet Margin of EN55022 conducted EMI: > 7dBuV

53mm x 25mm (Neck: 15mm x 15mm)

85VAC ~ 265VAC

< 8.4W

< 24V

Typ. 0.35A

© 2012 Fairchild Semiconductor Corporation 5 FEBL015 • Rev. 1.0.2

2.1. Photographs of the Evaluation Board

Figure 2. Top View

Figure 3. Bottom View

© 2012 Fairchild Semiconductor Corporation 6 FEBL015 • Rev. 1.0.2

2.2. Printed Circuit Board

Figure 4. Printed PCB, Top Side

Figure 5. Printed PCB, Bottom Side

© 2012 Fairchild Semiconductor Corporation 7 FEBL015 • Rev. 1.0.2

2.3. Schematic

N

L

250V/1A

F1

1

2

MB6S(600V/0.5A)

BD101

N

L

+

-

4

3

+

C101

10uF/ 400V

L101

L102

Short

10uF/400V

C102

+

R101

100K/3216

6

FL103

VDD3HV8NC7GND

U101

+

C104

10uF/50V

1mH

120K/3216

R102

GATE

NC

CS

VS

4

100R/2012

2R2/3216

R107

R108

2R2/ 3216

R106

22K/2012

5

2

1

10R/2012

R103

R104

2N60

Q101

D102

1N4007

47pF/2012

C105

R105

120K/2012

TRANSFOR MER FLAT COMPACT

C106

2.2n

LED-

C103

4.7n/1k V

D101

1N4007

5

7

24K/3216

R201

+

C201

100uF/ 35V

LED+

1

4

2

10

ES2D(200V/ 2A)

D201

Figure 6. Evaluation Board Schematic

T101

© 2012 Fairchild Semiconductor Corporation 8 FEBL015 • Rev. 1.0.2

3. Bill of Materials

Table 2. Bill of Materials

Item

No.

1 U101 FL103M 1 Controller, SOP-8

2 Q101 FQU2N60C 1 600V/2A MOSFET, I-PAK, Fairchild

3 T101 EE1614S 1 Transformer, Lm = 1.13mH TDK

4 F1 SS-5-1A 1 250V/1A Fuse Bussmann

5 L101 R08102KT00 2 1mH Filter Inductor, 8Φ Bosung

6 L102 Short 0 Short

7 BD101 MB6S 1

8 D101, D102 1N4007 2 1kV/1A Rectifier, DO-41

9 D201 ES2D 1

10 C101, C102 KMG 10µF/400V 2

11 C103 3A472K 1 4.7nF/1kV Ceramic Capacitor Samwha

12 C104 KMG 10µF/50V 1

13 C105 C0805C470J5GACTU 1 47pF/50V SMD Capacitor 2012 Kemet

14 C106 SCFz2E472M10BW 1 472/250V Y-Capacitor Samwha

15 C201 WB 100µF/35V 1

16 R101 RC1206JR-07100KL 1 100KΩ SMD Resistor 3216 Yageo

17 R102 RC1206JR-07120KL 1 120KΩ SMD Resistor 3216 Yageo

18 R103 RC0805JR-0710RL 1 10Ω SMD Resistor 2012 Yageo

19 R104 RC0805JR-07100RL 1 100Ω SMD Resistor 2012 Yageo

20 R105 RC0805JR-07120KL 1 120KΩ SMD Resistor 2012 Yageo

21 R106 RC0805JR-0722KL 1 22KΩ SMD Resistor 2012 Yageo

22 R107, R108 RC1206JR-072R2L 2 2.2Ω SMD Resistor 3216 Yageo

23 R201 RC1206JR-0724KL 1 24KΩ SMD Resistor 3216 Yageo

Part

Reference

Part Number Qty. Description Manufacturer

Fairchild

Semiconductor

600V/0.5A Bridge Rectifier,

SOIC-4

200V/2A Fast Rectifier,

SMB/DO-214AA

Electrolytic Capacitor, 105°C

Electrolytic Capacitor, 105°C

Ultra-Low Impedance

Electrolytic Capacitor, 105°C

Fairchild

Semiconductor

Fairchild

Semiconductor

Fairchild

Semiconductor

Samyoung

Samyoung

Samwha

© 2012 Fairchild Semiconductor Corporation 9 FEBL015 • Rev. 1.0.2