FSL146MRBN FAIRCHILD [Fairchild Semiconductor], FSL146MRBN Datasheet

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FSL146MRBN

Manufacturer Part Number
FSL146MRBN
Description
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheet
© 2012 Fairchild Semiconductor Corporation
FSL146MRBN • Rev. 1.0.0
FSL146MRBN
Green-Mode Fairchild Power Switch (FPS™)
Features
Applications
Ordering Information
Notes:
1.
2.
3.
4.
5.
Part Number
FSL146MRBN
Advanced Soft Burst-Mode Operation for
Low Standby Power and Low Audible Noise
Random Frequency Fluctuation (RFF) for Low EMI
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
Low Operating Current (0.4mA) in Burst Mode
Internal Startup Circuit
Internal High-Voltage SenseFET: 650V
Built-in Soft-Start: 15ms
Auto-Restart Mode
Power Supply for LCD Monitor, STB, and
DVD Combination
Lead-free package per JEDEC J-STD-020B.
The junction temperature can limit the maximum output power.
230V
Typical continuous power in a non-ventilated enclosed adapter measured at 50C ambient temperature.
Maximum practical continuous power in an open-frame design at 50C ambient temperature.
AC
or 100/115V
Package
8-DIP
AC
with voltage doubler.
Temperature
Operating
Junction
-40°C ~
+125°C
Current
Limit
1.50A
R
(Max.)
2.6
DS(ON)
Description
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, Under-
Voltage Lockout (UVLO), Leading-Edge Blanking (LEB),
optimized gate driver, internal soft-start, temperature-
compensated
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.
Adapter
230V
23W
(4)
AC
Output Power Table
± 15%
Frame
Open
precise
35W
(3)
(5)
Adapter
current
17W
(4)
85-265V
Frame
(2)
sources
Open
26W
AC
(5)
www.fairchildsemi.com
April 2012
Replaces
FSFM260
for
Device
N
loop

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FSL146MRBN Summary of contents

Page 1

... 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 ...

Page 2

... Application Circuit AC IN N.C. Internal Block Diagram © 2012 Fairchild Semiconductor Corporation FSL146MRBN • Rev. 1.0.0 Drain GND Figure 1. Typical Application Circuit Figure 2. Internal Block Diagram www.fairchildsemi.com ...

Page 3

... GND. If the voltage of this pin reaches 7.0V, the overload protection triggers, which shuts down the FPS™. 4 N.C. No Connection Drain SenseFET Drain. High-voltage power SenseFET drain connection. © 2012 Fairchild Semiconductor Corporation FSL146MRBN • Rev. 1.0.0 Figure 3. Pin Configuration (Top View) Description 3 www.fairchildsemi.com ...

Page 4

... Junction-to-Ambient Thermal Impedance JA Ψ Junction-to-Lead Thermal Impedance JL 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 Parameter T =25C C (6) T =100C C ...

Page 5

... LEB V Over-Voltage Protection OVP t Threshold Time OSP Output-Short V Threshold V (12) OSP Protection t V OSP_FB TSD Thermal Shutdown Temperature T HYS © 2012 Fairchild Semiconductor Corporation FSL146MRBN • Rev. 1.0.0 Conditions 250µ 650V =10V (12 25V ...

Page 6

... Supply Voltage STR STR Notes: 12. Although these parameters are guaranteed, they are not 100% tested in production. 13. Average value. 14. t includes gate turn-on time. LEB Comparison of FSFM260N and FSL146MRBN Function FSFM260N Operating 1.5mA Current Power Balance Long t © 2012 Fairchild Semiconductor Corporation FSL146MRBN • ...

Page 7

... Temperature [ °C] Figure 7. Startup Charging Current (I 1.40 1.30 1.20 1.10 1.00 0.90 0.80 0.70 0.60 ‐40'C ‐20'C 0'C 25'C 50'C 75'C 90'C 110'C 120'C 125'C Temperature [ °C] Figure 9. Feedback Source Current (I © 2012 Fairchild Semiconductor Corporation FSL146MRBN • Rev. 1.0.0 =25°C. A 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 ‐40'C ‐20'C ) vs. T Figure 6. Operating Switching Current ( 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 ‐40'C ‐20 ...

Page 8

... Temperature [ °C] Figure 13. Shutdown Feedback Voltage (V vs. T 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 ‐40'C ‐20'C 0'C 25'C 50'C 75'C 90'C 110'C 120'C 125'C Temperature [ °C] Figure 15. Switching Frequency (f © 2012 Fairchild Semiconductor Corporation FSL146MRBN • Rev. 1.0.0 =25°C. A 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 ) vs. T Figure 12. UVLO Threshold Voltage (V START A 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 ‐40'C ‐20'C ) Figure 14. Over-Voltage Protection (V ...

Page 9

... V Vcc illustrated in Figure 17. When V FSL146MRBN begins switching and the internal high- voltage current source is disabled. The FSL146MRBN continues normal switching operation and the power is supplied from the auxiliary transformer winding unless V goes below the stop voltage of 7 ...

Page 10

... SenseFET during the minimum turn-on time. Even though the FSL146MRBN has overload protection 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 ...

Page 11

... Fairchild Semiconductor Corporation FSL146MRBN • Rev. 1.0.0 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 ...

Page 12

... The SMD-type capacitor (C106) must be placed as close as possible to the V abrupt pulsating noises and to improve ESD and surge immunity. Capacitance between 100nF and 220nF is recommended. Schematic © 2012 Fairchild Semiconductor Corporation FSL146MRBN • Rev. 1.0.0 Input Voltage Rated Output 5.0V (2A 265V AC 14.0V (1.2A) Figure 25 ...

Page 13

... Insulation: Polyester Tape t = 0.025mm, 2 Layers → Insulation: Polyester Tape t = 0.025mm, 2 Layers Electrical Characteristics Inductance Leakage Core & Bobbin  Core: EER3016 (Ae=109.7mm  Bobbin: EER3016 © 2012 Fairchild Semiconductor Corporation FSL146MRBN • Rev. 1.0.0 Barrier tape 14V ...

Page 14

... FOD817B Diode D101 1N4007 D102 UF4007 ZD101 1N4750 D201 MBRF10H100 D202 MBRF1060 BD101 G2SBA60 © 2012 Fairchild Semiconductor Corporation FSL146MRBN • Rev. 1.0.0 Note Part # Value Capacitor C101 220nF / 275V C102 150nF/275V DSC C103 100µF / 400V Electrolytic (SamYoung) C104 3.3nF/630V 1W C105 ...

Page 15

... 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 9.83 9.00 6.67 6.096 3 ...

Page 16

... Fairchild Semiconductor Corporation FSL146MRBN • Rev. 1.0.0 16 www.fairchildsemi.com ...

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