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FSL146MRBN
Green-Mode Fairchild Power Switch (FPS™)
Features
Description
Advanced Soft Burst-Mode Operation for
Low Standby Power and Low Audible Noise
Random Frequency Fluctuation (RFF) for Low EMI
Low Operating Current (0.4mA) in Burst Mode
Pulse-by-Pulse Current Limit
Various Protection Functions: Overload Protection
(OLP), Over-Voltage Protection (OVP), Abnormal
Over-Current Protection (AOCP), Internal Thermal
Shutdown (TSD) with Hysteresis, Output-Short
Protection (OSP), and Under-Voltage Lockout
(UVLO) with Hysteresis
Internal Startup Circuit
Internal High-Voltage SenseFET: 650V
The FSL146MRBN is an integrated Pulse Width
Modulation (PWM) controller and SenseFET designed
for offline Switch-Mode Power Supplies (SMPS) with
minimal external components. The PWM controller
includes an integrated fixed-frequency oscillator, UnderVoltage Lockout (UVLO), Leading-Edge Blanking (LEB),
optimized gate driver, internal soft-start, temperaturecompensated precise current sources for loop
compensation, and self-protection circuitry. Compared
with a discrete MOSFET and PWM controller solution,
the FSL146MRBN can reduce total cost, component
count, size, and weight; while simultaneously increasing
efficiency, productivity, and system reliability. This
device provides a basic platform suited for cost-effective
design of a flyback converter.
Built-in Soft-Start: 15ms
Auto-Restart Mode
Applications
Power Supply for LCD Monitor, STB, and
DVD Combination
Ordering Information
Output Power Table(2)
Part Number
Package
FSL146MRBN
8-DIP
Operating
Current RDS(ON) 230VAC ± 15%(3)
Replaces
85-265VAC
Junction
Limit (Max.)
Device
Temperature
Adapter Open Adapter Open
(4)
(5)
(4)
(5)
Frame
Frame
-40°C ~
+125°C
1.50A
2.6
23W
35W
17W
26W
FSFM260
N
Notes:
1. Lead-free package per JEDEC J-STD-020B.
2. The junction temperature can limit the maximum output power.
3. 230VAC or 100/115VAC with voltage doubler.
4. Typical continuous power in a non-ventilated enclosed adapter measured at 50C ambient temperature.
5. Maximum practical continuous power in an open-frame design at 50C ambient temperature.
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
www.fairchildsemi.com
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
April 2012
VO
AC
IN
Drain
N.C.
GND
FB
VCC
Figure 1. Typical Application Circuit
Internal Block Diagram
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
Application Circuit
Figure 2. Internal Block Diagram
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
www.fairchildsemi.com
2
Figure 3. Pin Configuration (Top View)
Pin Definitions
Pin #
Name
Description
1
GND
Ground. This pin is the control ground and the SenseFET source.
2
VCC
Power Supply. This pin is the positive supply input, which provides the internal operating
current for both startup and steady-state operation.
3
FB
Feedback. This pin is internally connected to the inverting input of the PWM comparator.
The collector of an opto-coupler is typically tied to this pin. For stable operation, a capacitor
should be placed between this pin and GND. If the voltage of this pin reaches 7.0V, the
overload protection triggers, which shuts down the FPS™.
4
N.C.
No Connection
5, 6, 7, 8
Drain
SenseFET Drain. High-voltage power SenseFET drain connection.
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
Pin Configuration
www.fairchildsemi.com
3
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Symbol
Parameter
Min.
Max.
Unit
VDS
Drain Pin Voltage
650
V
VCC
VCC Pin Voltage
26
V
VFB
Feedback Pin Voltage
10.0
V
IDM
Drain Current Pulsed
3.4
A
IDS
Continuous Switching Drain Current(6)
TC=25C
1.7
A
TC=100C
1.1
A
250
mJ
1.5
W
150
C
-40
+125
C
-55
+150
C
EAS
PD
TJ
-0.3
(7)
Single Pulsed Avalanche Energy
Total Power Dissipation (TC=25C)
(8)
Maximum Junction Temperature
Operating Junction Temperature
TSTG
Storage Temperature
ESD
Electrostatic
Discharge Capability
(9)
Human Body Model, JESD22-A114
5
Charged Device Model, JESD22-C101
2
kV
Notes:
6. Repetitive peak switching current when the inductive load is assumed: Limited by maximum duty (DMAX=0.73)
and junction temperature (see Figure 4).
7. L=45mH, starting TJ=25C.
8. Infinite cooling condition (refer to the SEMI G30-88).
9. Although this parameter guarantees IC operation, it does not guarantee all electrical characteristics.
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
Absolute Maximum Ratings
Figure 4. Repetitive Peak Switching Current
Thermal Impedance
TA=25°C unless otherwise specified.
Symbol
θJA
ΨJL
Parameter
Junction-to-Ambient Thermal Impedance
Junction-to-Lead Thermal Impedance
(10)
(11)
Value
Unit
85
°C/W
11
°C/W
Notes:
10. JEDEC recommended environment, JESD51-2 and test board, JESD51-10 with minimum land pattern.
11. Measured on the SOURCE pin #7, close to the plastic interface.
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
www.fairchildsemi.com
4
TJ = 25C unless otherwise specified.
Symbol
Parameter
Conditions
Min.
VCC = 0V, ID = 250µA
650
Typ.
Max.
Unit
250
µA
2.6
Ω
SenseFET Section
BVDSS
Drain-Source Breakdown Voltage
IDSS
Zero-Gate-Voltage Drain Current
VDS = 650V, TA = 25C
Drain-Source On-State Resistance
VGS=10V, ID =1A
2.1
VDS = 25V, VGS = 0V, f=1MHz
436
pF
RDS(ON)
CISS
COSS
(12)
Input Capacitance
Output Capacitance
(12)
V
VDS = 25V, VGS = 0V, f=1MHz
65
pF
tr
Rise Time
VDS = 325V, ID = 4A, RG=25Ω
24
ns
tf
Fall Time
VDS = 325V, ID = 4A, RG=25Ω
24
ns
td(on)
Turn-On Delay
VDS = 325V, ID = 4A, RG=25Ω
13
ns
td(off)
Turn-Off Delay
VDS = 325V, ID= 4A, RG=25Ω
30
ns
Control Section
fS
fS
Switching Frequency(12)
VCC = 14V, VFB = 4V
Switching Frequency Variation
(12)
-25C < TJ < 125C
DMAX
Maximum Duty Ratio
VCC = 14V, VFB = 4V
DMIN
Minimum Duty Ratio
VCC = 14V, VFB = 0V
IFB
VSTART
VSTOP
tS/S
VRECOMM
Feedback Source Current
UVLO Threshold Voltage
Internal Soft-Start Time
61
61
67
73
kHz
±5
±10
%
67
73
%
0
%
VFB = 0
65
90
115
µA
VFB = 0V, VCC Sweep
11
12
13
V
After Turn-On, VFB = 0V
7.0
7.5
8.0
V
VSTR = 40V, VCC Sweep
Recommended VCC Range
15
13
ms
23
V
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
Electrical Characteristics
Burst-Mode Section
VBURH
VBURL
Burst-Mode Voltage
VCC = 14V, VFB Sweep
0.45
0.50
0.55
V
0.30
0.35
0.40
V
VHYS
150
mV
Protection Section
ILIM
Peak Drain Current Limit
di/dt = 300mA/µs
1.35
1.50
1.65
A
VSD
Shutdown Feedback Voltage
VCC = 14V, VFB Sweep
6.45
7.00
7.55
V
VCC = 14V, VFB = 4V
1.2
2.0
2.8
µA
IDELAY
Shutdown Delay Current
(12,14)
tLEB
Leading-Edge Blanking Time
VOVP
Over-Voltage Protection
tOSP
VOSP
tOSP_FB
TSD
THYS
Output-Short
Protection(12)
Threshold Time
Threshold VFB
VFB Blanking Time
Thermal Shutdown Temperature(12)
300
ns
VCC Sweep
23.0
24.5
26.0
V
OSP Triggered when
tONVOSP
(Lasts Longer than tOSP_FB)
0.7
1.0
1.3
µs
1.8
2.0
2.2
V
2.0
2.5
3.0
µs
Shutdown Temperature
125
135
145
C
Hysteresis
60
C
Continued on the following page…
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
www.fairchildsemi.com
5
TJ = 25C unless otherwise specified.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
Total Device Section
IOP
Operating Supply Current,
(Control Part in Burst Mode)
VCC = 14V, VFB = 0V
0.3
0.4
0.5
mA
IOPS
Operating Switching Current,
(Control Part and SenseFET Part)
VCC = 14V, VFB = 2V
1.1
1.5
1.9
mA
Start Current
VCC=11V (Before VCC
Reaches VSTART)
85
120
155
µA
Startup Charging Current
VCC = VFB = 0V, VSTR = 40V
0.7
1.0
1.3
mA
Minimum VSTR Supply Voltage
VCC = VFB = 0V, VSTR Sweep
ISTART
ICH
VSTR
26
V
Notes:
12. Although these parameters are guaranteed, they are not 100% tested in production.
13. Average value.
14. tLEB includes gate turn-on time.
Comparison of FSFM260N and FSL146MRBN
Function
FSFM260N
FSL146MRBN
Operating
Current
1.5mA
0.4mA
Power Balance
Long tCLD
Very Short tCLD
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
Advantages of FSL146MRBN
Very low standby power
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
Electrical Characteristics (Continued)
The difference of input power between
the low and high input voltage is quite
small.
www.fairchildsemi.com
6
1.20
1.20
1.15
1.15
1.10
1.10
1.05
1.05
Normalized
Normalized
Characteristic graphs are normalized at TA=25°C.
1.00
0.95
0.90
1.00
0.95
0.90
0.85
0.85
0.80
‐40'C ‐20'C
0'C
0.80
‐40'C ‐20'C
25'C 50'C 75'C 90'C 110'C 120'C 125'C
0'C
Figure 6. Operating Switching Current (IOPS)
vs. TA
1.20
1.20
1.15
1.15
1.10
1.10
1.05
1.05
Normalized
Normalized
Figure 5. Operating Supply Current (IOP) vs. TA
1.00
0.95
0.90
0.85
0.80
‐40'C ‐20'C
1.00
0.95
0.90
0.85
0'C
0.80
‐40'C ‐20'C
25'C 50'C 75'C 90'C 110'C 120'C 125'C
0'C
Temperature [ °C]
25'C 50'C 75'C 90'C 110'C 120'C 125'C
Temperature [ °C]
Figure 7. Startup Charging Current (ICH) vs. TA
Figure 8. Peak Drain Current Limit (ILIM) vs. TA
1.40
1.20
1.30
1.15
1.20
1.10
1.10
1.05
Normalized
Normalized
25'C 50'C 75'C 90'C 110'C 120'C 125'C
Temperature [ °C]
Temperature [ °C]
1.00
0.90
0.80
0.70
0.60
‐40'C ‐20'C
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
Typical Performance Characteristics
1.00
0.95
0.90
0.85
0'C
0.80
‐40'C ‐20'C
25'C 50'C 75'C 90'C 110'C 120'C 125'C
Temperature [ °C]
25'C 50'C 75'C 90'C 110'C 120'C 125'C
Temperature [ °C]
Figure 9. Feedback Source Current (IFB) vs. TA
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
0'C
Figure 10. Shutdown Delay Current (IDELAY) vs. TA
www.fairchildsemi.com
7
1.20
1.20
1.15
1.15
1.10
1.10
1.05
1.05
Normalized
Normalized
Characteristic graphs are normalized at TA=25°C.
1.00
0.95
0.90
0.95
0.90
0.85
0.85
0.80
‐40'C ‐20'C
1.00
0'C
0.80
‐40'C ‐20'C
25'C 50'C 75'C 90'C 110'C 120'C 125'C
0'C
Figure 12. UVLO Threshold Voltage (VSTOP) vs. TA
1.20
1.20
1.15
1.15
1.10
1.10
1.05
1.05
Normalized
Normalized
Figure 11. UVLO Threshold Voltage (VSTART) vs. TA
1.00
0.95
0.90
0.85
0.80
‐40'C ‐20'C
1.00
0.95
0.90
0.85
0'C
0.80
‐40'C ‐20'C
25'C 50'C 75'C 90'C 110'C 120'C 125'C
0'C
Temperature [ °C]
Figure 14. Over-Voltage Protection (VOVP) vs. TA
1.20
1.20
1.15
1.15
1.10
1.10
1.05
1.05
Normalized
Normalized
25'C 50'C 75'C 90'C 110'C 120'C 125'C
Temperature [ °C]
Figure 13. Shutdown Feedback Voltage (VSD)
vs. TA
1.00
0.95
0.90
0.85
0.80
‐40'C ‐20'C
25'C 50'C 75'C 90'C 110'C 120'C 125'C
Temperature [ °C]
Temperature [ °C]
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
Typical Performance Characteristics
1.00
0.95
0.90
0.85
0'C
0.80
‐40'C ‐20'C
25'C 50'C 75'C 90'C 110'C 120'C 125'C
Temperature [ °C]
25'C 50'C 75'C 90'C 110'C 120'C 125'C
Temperature [ °C]
Figure 15. Switching Frequency (fS) vs. TA
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
0'C
Figure 16. Maximum Duty Ratio (DMAX) vs. TA
www.fairchildsemi.com
8
3. Feedback Control: This device employs CurrentMode control, as shown in Figure 18. An opto-coupler
(such as the FOD817) and shunt regulator (such as the
KA431) are typically used to implement the feedback
network. Comparing the feedback voltage with the
voltage across the RSENSE resistor makes it possible to
control the switching duty cycle. When the reference pin
voltage of the shunt regulator exceeds the internal
reference voltage of 2.5V, the opto-coupler LED current
increases, pulling down the feedback voltage and
reducing drain current. This typically occurs when the
input voltage is increased or the output load is decreased.
1. Startup: At startup, an internal high-voltage current
source supplies the internal bias and charges the
external capacitor (CVcc) connected to the VCC pin, as
illustrated in Figure 17. When VCC reaches 12V, the
FSL146MRBN begins switching and the internal highvoltage current source is disabled. The FSL146MRBN
continues normal switching operation and the power is
supplied from the auxiliary transformer winding unless
VCC goes below the stop voltage of 7.5V.
3.1 Pulse-by-Pulse Current Limit: Because CurrentMode control is employed, the peak current through
the SenseFET is limited by the inverting input of the
PWM comparator (VFB*), as shown in Figure 18.
Assuming that the 90μA current source flows only
through the internal resistor (3R + R =27kΩ), the
cathode voltage of diode D2 is about 2.5V. Since D1
is blocked when the feedback voltage (VFB) exceeds
2.5V, the maximum voltage of the cathode of D2 is
clamped at this voltage. Therefore, the peak value of
the current through the SenseFET is limited.
3.2 Leading-Edge Blanking (LEB): At the instant the
internal SenseFET is turned on, a high-current spike
usually occurs through the SenseFET, caused by
primary-side capacitance and secondary-side rectifier
reverse recovery. Excessive voltage across the RSENSE
resistor leads to incorrect feedback operation in the
Current-Mode PWM control. To counter this effect, the
leading-edge blanking (LEB) circuit inhibits the PWM
comparator for tLEB (300ns) after the SenseFET is
turned on.
Figure 17. Startup Block
2. Soft-Start: The internal soft-start circuit increases
PWM comparator inverting input voltage, together with
the SenseFET current, slowly after it starts. The typical
soft-start time is 15ms. The pulse width to the power
switching device is progressively increased to establish
the correct working conditions for transformers,
inductors, and capacitors. The voltage on the output
capacitors is progressively increased to smoothly
establish the required output voltage. This helps prevent
transformer saturation and reduces stress on the
secondary diode during startup.
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
Functional Description
Figure 18. Pulse Width Modulation Circuit
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
www.fairchildsemi.com
9
B
VDS
Fault
occurs
Power
on
continues increasing until it reaches 7.0V, when the
switching operation is terminated, as shown in Figure
20. The delay for shutdown is the time required to
charge CFB from 2.5V to 7.0V with 2.0µA. A 25 ~
50ms delay is typical for most applications. This
protection is implemented in Auto-Restart Mode.
B
Fault
removed
Figure 20. Overload Protection
4.2 Abnormal Over-Current Protection (AOCP):
When the secondary rectifier diodes or the
transformer pins are shorted, a steep current with
extremely high di/dt can flow through the SenseFET
during the minimum turn-on time. Even though the
FSL146MRBN has overload protection, it is not
enough to protect the FSL146MRBN in that abnormal
case; since severe current stress is imposed on the
SenseFET until OLP is triggered. The internal AOCP
circuit is shown in Figure 21. When the gate turn-on
signal is applied to the power SenseFET, the AOCP
block is enabled and monitors the current through the
sensing resistor. The voltage across the resistor is
compared with a preset AOCP level. If the sensing
resistor voltage is greater than the AOCP level, the
set signal is applied to the S-R latch, resulting in the
shutdown of the SMPS.
VCC
12.0V
7.5V
t
Normal
operation
Fault
situation
Normal
operation
Figure 19. Auto-Restart Protection Waveforms
4.1 Overload Protection (OLP): Overload is defined
as the load current exceeding its normal level due to
an unexpected abnormal event. In this situation, the
protection circuit should trigger to protect the SMPS.
However, in normal operation, the overload protection
circuit can be triggered during load transition. To
avoid this undesired operation, the overload
protection circuit is designed to trigger only after a
specified time to determine whether it is a transient
situation or a true overload situation. Because of the
pulse-by-pulse current-limit capability, the maximum
peak current through the SenseFET is limited and,
therefore, the maximum input power is restricted with
a given input voltage. If the output consumes more
than this maximum power, the output voltage (VOUT)
decreases below the set voltage. This reduces the
current through the opto-coupler LED, which also
reduces the opto-coupler transistor current, thus
increasing the feedback voltage (VFB). If VFB exceeds
2.5V, D1 is blocked and the 2.0µA current source
starts to charge CFB slowly up. In this condition, VFB
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
4. Protection Circuits: The self-protective functions
include: Overload Protection (OLP), Abnormal OverCurrent Protection (AOCP), Output-Short Protection
(OSP), Over-Voltage Protection (OVP), and Thermal
Shutdown (TSD). All the protections are implemented as
Auto Restart Mode. Once the fault condition is detected,
switching is terminated and the SenseFET remains off.
This causes VCC to fall. When VCC falls to the UnderVoltage Lockout (UVLO) stop voltage of 7.5V, the
protection is reset and the startup circuit charges the
VCC capacitor. When VCC reaches the start voltage of
12.0V, normal operation resumes. If the fault condition
is not removed, the SenseFET remains off and VCC
drops to stop voltage again. In this manner, the AutoRestart can alternately enable and disable the switching
of the power SenseFET until the fault condition is
eliminated. Because these protection circuits are fully
integrated into the IC without external components, the
reliability is improved without increasing cost.
Figure 21. Abnormal Over-Current Protection
www.fairchildsemi.com
10
Figure 22. Output-Short Protection
4.4 Over-Voltage Protection (OVP): If the
secondary-side feedback circuit malfunctions or a
solder defect causes an opening in the feedback path,
the current through the opto-coupler transistor
becomes almost zero. Then VFB climbs up in a similar
manner to the overload situation, forcing the preset
maximum current to be supplied to the SMPS until the
overload protection is triggered. Because more
energy than required is provided to the output, the
output voltage may exceed the rated voltage before
the overload protection is triggered, resulting in the
breakdown of the devices in the secondary side. To
prevent this situation, an OVP circuit is employed. In
general, the VCC is proportional to the output voltage
and the FSL146MRBN uses VCC instead of directly
monitoring the output voltage. If VCC exceeds 24.5V,
an OVP circuit is triggered, resulting in the termination
of the switching operation. To avoid undesired
activation of OVP during normal operation, VCC should
be designed to be below 24.5V.
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
5. Soft Burst-Mode Operation: To minimize power
dissipation in Standby Mode, the FSL146MRBN enters
Burst-Mode operation. As the load decreases, the
feedback voltage decreases. As shown in Figure 23, the
device automatically enters Burst Mode when the
feedback voltage drops below VBURL (350mV). At this
point, switching stops and the output voltages start to
drop at a rate dependent on the standby current load.
This causes the feedback voltage to rise. Once it
passes VBURH (500mV), switching resumes. The
feedback voltage then falls and the process repeats.
Burst Mode alternately enables and disables switching
of the SenseFET, thereby reducing switching loss in
Standby Mode.
4.3. Output-Short Protection (OSP): If the output is
shorted, steep current with extremely high di/dt can
flow through the SenseFET during the minimum turnon time. Such a steep current brings high-voltage
stress on the drain of the SenseFET when turned off.
OSP protects the device from this abnormal condition.
It is comprised of detecting VFB and SenseFET turnon time. When the VFB is higher than 2.0V and the
SenseFET turn-on time is lower than 1.0μs, this
condition is recognized as an abnormal error and
PWM switching shuts down until VCC reaches VSTART
again. An abnormal condition output short is shown in
Figure 22.
Figure 23. Burst Mode Operation
6. Random Frequency Fluctuation (RFF): Fluctuating
switching frequency of an SMPS can reduce EMI by
spreading the energy over a wide frequency range. The
amount of EMI reduction is directly related to the
switching frequency variation, which is limited internally.
The switching frequency is determined randomly by an
external feedback voltage and internal free-running
oscillator at every switching instant. RFF effectively
scatters the EMI noise around typical switching
frequency (67kHz) and can reduce the cost of the input
filter used to meet EMI requirements (e.g. EN55022).
4.5 Thermal Shutdown (TSD): The SenseFET and
the control IC on a die in one package make it easier
for the control IC to detect the over temperature of the
SenseFET. If the temperature exceeds ~135C, the
thermal shutdown is triggered and stops operation.
The FSL146MRBN operates in Auto-Restart Mode
until the temperature decreases to around 75C,
when normal operation resumes.
Figure 24. Random Frequency Fluctuation
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
www.fairchildsemi.com
11
Application
Input Voltage
Rated Output
Rated Power
LCD Monitor
Power Supply
85 ~ 265VAC
5.0V (2A)
14.0V (1.2A)
26.8W
Key Design Notes:
1.
The delay for overload protection is designed to be about 30ms with C105 (8.2nF). OLP time between 39ms
(12nF) and 46ms (15nF) is recommended.
2.
The SMD-type capacitor (C106) must be placed as close as possible to the VCC pin to avoid malfunction by
abrupt pulsating noises and to improve ESD and surge immunity. Capacitance between 100nF and 220nF
is recommended.
Schematic
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
Typical Application Circuit
Figure 25. Schematic
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
www.fairchildsemi.com
12
Barrier tape
1
Np/2
2
N14V
8
10
N5V
8
6
Na
N5V
4
5
7
6
Np/2
3
2
TOP
BOT
Figure 26. Schematic of Transformer
Winding Specification
Pin (S → F)
Wire
Turns
Winding Method
3→2
0.25φ×1
22
Np /2
Barrier Tape
TOP
BOT
Ts
Solenoid Winding
2.0mm
1
3
Solenoid Winding
3.0mm
1
8
Solenoid Winding
3.0mm
1
3
Solenoid Winding
3.0mm
1
5
Solenoid Winding
2.0mm
1
22
Solenoid Winding
2.0mm
1
Insulation: Polyester Tape t = 0.025mm, 2 Layers
N5V
7→6
0.4φ×2 (TIW)
Insulation: Polyester Tape t = 0.025mm, 2 Layers
Na
4→5
0.2φ×1
4.0mm
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
Transformer
Insulation: Polyester Tape t = 0.025mm, 2 Layers
N5V
8→6
0.4φ×2 (TIW)
Insulation: Polyester Tape t = 0.025mm, 2 Layers
N14V
10 → 8
0.4φ×2 (TIW)
Insulation: Polyester Tape t = 0.025mm, 2 Layers
Np/2
2→1
0.25φ×1
Insulation: Polyester Tape t = 0.025mm, 2 Layers
Electrical Characteristics
Pin
Specification
Remark
Inductance
1－3
826H ±6%
67kHz, 1V
Leakage
1－3
15H Maximum
Short all other pins
Core & Bobbin
Core: EER3016 (Ae=109.7mm2)
Bobbin: EER3016
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
www.fairchildsemi.com
13
Part #
Value
Note
Part #
Fuse
F101
NTC101
Note
Capacitor
250V 2A
C101
220nF / 275V
Box (Pilkor)
NTC
C102
150nF/275V
Box (Pilkor)
C103
100µF / 400V Electrolytic (SamYoung)
5D-9
DSC
Resistor
R101
Value
1.5MΩ, J
C104
3.3nF/630V
Film (Sehwa)
1W
C105
15nF / 100V
Film (Sehwa)
R103
43kΩ, J
1W
C106
100nF
SMD (2012)
R201
1.5kΩ, F
1/4W, 1%
C107
47µF / 50V
Electrolytic (SamYoung)
R202
1.0kΩ, F
1/4W, 1%
C201
820µF / 25V
Electrolytic (SamYoung)
R203
18kΩ, F
1/4W, 1%
C202
820µF / 25V
Electrolytic (SamYoung)
R204
8kΩ, F
1/4W, 1%
C203
2200µF / 10V Electrolytic (SamYoung)
R205
8kΩ, F
1/4W, 1%
C204
1000µF / 16V Electrolytic (SamYoung)
C205
47nF / 100V
Film (Sehwa)
C301
2.2nF / Y2
Y-cap (Samhwa)
IC
Inductor
FPS
FSL146MRBN
Fairchild
LF101
20mH
Line filter 0.5Ø
IC201
KA431LZ
Fairchild
L201
5µH
5A Rating
IC301
FOD817B
Fairchild
L202
5µH
5A Rating
Diode
Transformer
D101
1N4007
Vishay
D102
UF4007
Vishay
ZD101
1N4750
Vishay
D201
MBRF10H100
Fairchild
D202
MBRF1060
Fairchild
BD101
G2SBA60
Vishay
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
T101
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
Bill of Materials
826µH
www.fairchildsemi.com
14
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
Physical Dimensions
9.83
9.00
6.67
6.096
8.255
7.61
3.683
3.20
5.08 MAX
7.62
0.33 MIN
3.60
3.00
(0.56)
2.54
0.56
0.355
0.356
0.20
9.957
7.87
1.65
1.27
7.62
NOTES: UNLESS OTHERWISE SPECIFIED
A) THIS PACKAGE CONFORMS TO
JEDEC MS-001 VARIATION BA
B) ALL DIMENSIONS ARE IN MILLIMETERS.
C) DIMENSIONS ARE EXCLUSIVE OF BURRS,
MOLD FLASH, AND TIE BAR EXTRUSIONS.
D) DIMENSIONS AND TOLERANCES PER
ASME Y14.5M-1994
E) DRAWING FILENAME AND REVSION: MKT-N08FREV2.
Figure 27. 8-Lead, MDIP, JEDEC MS-001, .300" Wide
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any
manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to
verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,
specifically the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/.
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
www.fairchildsemi.com
15
FSL146MRBN — Green-Mode Fairchild Power Switch (FPS™)
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
www.fairchildsemi.com
16
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