Fairchild FEBFSL206MRN_H428v1, FSL206MRN User Manual
User Guide for
FEBFSL206MRN_H428v1
Evaluation Board
Integrated Controller
FSL206MRN
5W Auxiliary Power Supply
Featured Fairchild Product:
FSL206MRN
Direct questions or comments
about this evaluation board to:
“Worldwide Direct Support”
Fairchild Semiconductor.com
© 2011 Fairchild Semiconductor Corporation 1 FEBFSL206MRN_H428v1 • Rev. 1.0.1
Table of Contents
1. Introduction ............................................................................................................................... 3
1.1. General Description ........................................................................................................... 3
1.2. Features .............................................................................................................................. 3
2. Specifications ............................................................................................................................ 4
3. Photographs............................................................................................................................... 5
4. PCB Layout ............................................................................................................................... 6
5. Test Conditions ......................................................................................................................... 7
6. Performance of Evaluation Board ............................................................................................. 8
6.1. Startup Performance........................................................................................................... 8
6.2. Normal Operation .............................................................................................................. 9
6.3. Voltage Stress of Secondary Diode and Drain ................................................................ 10
6.4. Output Ripple and Noise .................................................................................................. 11
6.5. Short Protections .............................................................................................................. 12
6.6. Brown-In and Brownout Protection ................................................................................. 14
6.7. Temperature Measurement .............................................................................................. 14
6.8. Output Regulation and Efficiency ................................................................................... 15
6.9. Standby Power Consumption ........................................................................................... 17
6.10. EMI Measurement ......................................................................................................... 19
7. Schematic ................................................................................................................................ 21
8. Transformer Specification ...................................................................................................... 22
9. Bill of Materials ...................................................................................................................... 26
10. Revision History ..................................................................................................................... 27
© 2011 Fairchild Semiconductor Corporation 2 FEBFSL206MRN_H428v1 • Rev. 1.0.1
This user guide supports the evaluation kit for the FSL206MR. It should be used in
conjunction with the FSL206MR 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 is an engineering report describing measured performance of the
FSL206MR.
1.1. General Description
The FSL206MR integrated Pulse Width Modulator (PWM) and SenseFET is specifically
designed for high-performance offline Switched-Mode Power Supplies (SMPS) with
minimal external components. This device is an integrated high-voltage power regulator
that combines an avalanche-rugged SenseFET with a current mode PWM control block.
The integrated PWM controller includes: 7.8V regulator for no bias winding, UnderVoltage Lockout (UVLO) protection, Leading-Edge Blanking (LEB), an optimized gate
turn-on/turn-off driver, EMI attenuator, Thermal Shutdown (TSD) protection,
temperature-compensated precision current sources for loop compensation, and faultprotection circuitry. Protections include Overload Protection (OLP), Over-Voltage
Protection (OVP), Abnormal Over-Current Protection (AOCP), and Line Under-Voltage
Protection (LUVP). During startup, the FSL206MR offers good soft-start performance.
.
The internal high-voltage startup switch and the Burst-Mode operation with very low
operating current reduce the power loss in Standby Mode. As a result, it is possible to
reach power loss of 150mW with no-bias winding and 25mW with bias winding at noload condition when the input voltage is 265V
1.2. Features
Internal Avalanche Rugged SenseFET: 650V
Precision Fixed Operating Frequency: 67kHz
No-Load <150mW at 265V
Winding; <25mW with Bias Winding
No Need for Auxiliary Bias Winding
Frequency Modulation for Attenuating EMI
Line Under-Voltage Protection (LUVP)
Pulse-by-Pulse Current Limiting
Low Under-Voltage Lockout (UVLO)
Ultra-Low Operating Current: 300µA
Built-In Soft-Start and Startup Circuit
Protections: Overload Protection (OLP), Over-Voltage Protection (OVP),
Thermal Shutdown (TSD), Abnormal Over-Current Protection (AOCP)
Auto-Restart Mode for All Protections
AC
without Bias
AC
.
© 2011 Fairchild Semiconductor Corporation 3 FEBFSL206MRN_H428v1 • Rev. 1.0.1
V
CC
2 6,7,8
V
STR
5
Drain
V
LS
Good
Internal
Bias
VCCV
REF
I
I
DELAY
3
FB
4
FB
Line
Sense
2V/1.5V
V
FB
V
SD
V
CC
V
OVP
V
V
BURL/VBURH
4.5R
H if VLS>2V
L if VLS<1.5V
LUVP
OLP
OVP
TSD
CC
Soft-Start
R
VCCGood
7V/8V
OSC
with EMI Attenuator
PWM
V
LEB
SQQ
R
REF
S
R
7.8V
HV
REG
Q
Gate
Q
HV
REG Off
Driver
V
R
SENSE
AOCP
1
GND
TSD
Figure 1. Internal Block Diagram
2. Specifications
Table 1. Evaluation Board Specifications
Output Full-Load Condition 5V / 1A
Fairchild Device FSL206MR
Input Voltage Range 90 ~ 265 VAC
Frequency 60Hz
Maximum Output Power 5W
© 2011 Fairchild Semiconductor Corporation 4 FEBFSL206MRN_H428v1 • Rev. 1.0.1
3. Photographs
Figure 2. Top View (Dimension 64 x 33[mm2])
Figure 3. Bottom View (Dimension 64 x 33[mm
2
])
© 2011 Fairchild Semiconductor Corporation 5 FEBFSL206MRN_H428v1 • Rev. 1.0.1
4. PCB Layout
Figure 4. Top Overlay
Figure 5. Bottom Overlay
Figure 6. Bottom Layer
© 2011 Fairchild Semiconductor Corporation 6 FEBFSL206MRN_H428v1 • Rev. 1.0.1
5. Test Conditions
Evaluation
Board #
Test Date
Test Equipment
Test Items
FEBFSL206MRN_H428 Evaluation Board Ver. 1.0
August 18, 2010
AC Source: 6800 Series
Electronic Load: Chroma 63030
Oscilloscope: LeCroy 24Xs-A
Power Meter: Yokogawa WT210
1. Startup Performance
2. Normal Operation
3. Voltage Stress of Secondary Diode and Drain
4. Output Ripple and noise
5. Short Protections
6. Brown-in and Brownout Protection
7. Temperature Measurement
8. Output Regulation and Efficiency
9. Standby Power Consumption
10. Conducted EMI Measurement
© 2011 Fairchild Semiconductor Corporation 7 FEBFSL206MRN_H428v1 • Rev. 1.0.1
6. Performance of Eval uation Board
6.1. Star tup Performance
Figure 7. Startup Time (AC Input to VCC UVLO
HIGH) = 114ms, 90V
(CH1: V
(200V/div), CH2: V
DS
(10V/div), CH4: I
and Full-Load Condition
AC
(200mA/div), Time: 20ms/div
DS
(2V/div), CH3: VCC
FB
Figure 9. Startup Time (AC Input to V
HIGH) = 114ms, 265V
(CH1: V
(200V/div), CH2: V
DS
(10V/div), CH4: I
and Full-Load Condition,
AC
(200mA/div), Time: 20ms/div
DS
(2V/div), CH3: VCC
FB
UVLO
CC
Figure 8. Soft-Start, 90V
(CH1: V
(10V/div), CH4: I
(200V/div), CH2: V
DS
(200mA/div), Time: 2ms/div
DS
Figure 10. Soft-Start, 265V
Condition, (CH1: V
CH3: V
(10V/div), CH4: I
CC
(200V/div), CH2: V
DS
2ms/div
and Full-Load Condition
AC
(2V/div), CH3: VCC
FB
and Full-Load
AC
(200mA/div), Time:
DS
(2V/div),
FB
© 2011 Fairchild Semiconductor Corporation 8 FEBFSL206MRN_H428v1 • Rev. 1.0.1
6.2. Normal Operation
Figure 11. Full-Load Condition, 90VAC, (CH1: V
(200V/div), CH2: V
CH4: I
DS
(2V/div), CH3: VCC (10V/div),
FB
(500mA/div), Time: 10µs/div
Figure 13. No-Load Condition, 90VAC, (CH1: V
(200V/div), CH2: V
CH4: I
DS
(2V/div), CH3: VCC (10V/div),
FB
(200mA/div), Time: 10ms/div
DS
DS
Figure 12. Full-Load Condition, 265VAC, (CH1:
V
(200V/div), CH2: V
DS
(10V/div), CH4: I
(500mA/div), Time: 10µs/div
DS
Figure 14. No-Load Condition, 90V
(200V/div), CH2: V
CH4: I
FB
(200mA/div), Time: 50µs/div
DS
(2V/div), CH3: VCC
FB
(CH1: V
AC,
(2V/div), CH3: VCC (10V/div),
DS
Figure 15. No-Load Condition, 265V
(200V/div), CH2: V
CH4: I
DS
© 2011 Fairchild Semiconductor Corporation 9 FEBFSL206MRN_H428v1 • Rev. 1.0.1
(2V/div), CH3: VCC (10V/div),
FB
(200mA/div), Time: 10ms/div
AC,
(CH1: V
DS
Figure 16. No-Load Condition, 265V
(200V/div), CH2: V
CH4: I
DS
(2V/div), CH3: VCC (10V/div),
FB
(200mA/div), Time: 50µs/div
(CH1: V
AC,
DS
Loading...