FSGM0465RB FAIRCHILD | Alldatasheet
Document overview
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Technical content
Features
Soft Burst-Mode Operation for Low Standby Power Consumption and Low Noise Precision Fixed Operating Frequency: 66kHz 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 Auto-Restart Mode Internal Startup Circuit Internal High-Voltage SenseFET: 650V Built-in Soft-Start: 15ms
Applications
Power Supply for LCD TV and Monitor, STB and DVD Combination
Description
The FSGM0465RB is an integrated Pulse Width Modulation (PWM) controller and SenseFET specifically 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-comp ensated precise current sources for loop compensation, and self-protection circuitry. Compared with a discrete MOSFET and PWM controller solution, the FSGM series 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.
Ordering Information
RDS(ON) (Max.) Output Power Table(2) Replaces Device 230VAC ± 15%(3) 85~265VAC Adapter(4) Open Frame(5) Adapter(4) Open Frame(5) FSGM0465RBWDTU TO-220F 6-Lead(1) W-Forming -40°C ~ +125°C 2.70A 2.6Ω 60W 70W 33W 48W FSDM0465RE FSGM0465RBUDTU TO-220F 6-Lead(1) U-Forming -40°C ~ +125°C 2.70A 2.6Ω 60W 70W 33W 48W FSDM0465RE FSGM0465RBLDTU TO-220F 6-Lead(1) L-Forming -40°C ~ +125°C 2.70A 2.6Ω 60W 70W 33W 48W FSDM0465RE Notes: 1. Pb-free package per JEDEC J-STD-020B. 2. The junction temperature can limit the maximum output power. 3. 230V AC or 100/115VAC with voltage doubler. 4. Typical continuous power in a non-v entilated enclosed adapter measured at 50 °C ambient temperature. 5. Maximum practical continuous power in an open-frame design at 50 °C ambient temperature.
Figure 3. Pin Configuration (Top View) 1 Drain SenseFET Drain. High-voltage power SenseFET drain connection. 2 GND Ground. This pin is the control ground and the SenseFET source. current for both startup and steady-state operation. Feedback. This pin is internally connected to the inverting input of the PWM comparator. overload protection triggers, which shuts down the FPS.
6 V STR
Startup. This pin is connected directly, or through a resistor, to the high-voltage DC link.
operable above the recommended operating conditions and stressing the parts to these levels is not recommended. reliability. The absolute maximum ratings are stress ratings only.
- Repetitive peak switching current when the inductive load is assumed: Limited by maximum duty (D MAX=0.75)
and junction temperature (see Figure 4).
- L=75mH, starting T J=25°C.
- Infinite cooling condition (refer to the SEMI G30-88).
- Although this parameter guarantees IC operation, it does not guarantee all electrical characteristics.
- The voltage between the package back side and the lead is guaranteed.
Figure 4. Repetitive Peak Switching Current TA=25°C unless otherwise specified.
- Infinite cooling condition (refer to the SEMI G30-88).
- Free standing with no heat-sink under natural convection.
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FSGM0465RB • Rev. 1.0.2 5 FSGM0465RB — Green-Mode Fairchild Power Switch (FPS™)
Electrical Characteristics
TJ=25°C unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit SenseFET Section BVDSS Drain-Source Breakdown Voltage VCC=0V, ID=250μA 650 V IDSS Zero-Gate-Voltage Drain Current VDS=520V, TA=+125°C 250 μA RDS(ON) Drain-Source On-State Resistance V GS=10V, ID=1A 2.1 2.6 Ω CISS Input Capacitance (13) V DS=25V, VGS=0V, f=1MHz 436 pF COSS Output Capacitance (13) V DS=25V, VGS=0V, f=1MHz 65 pF tr Rise Time V DS=325V, ID=4A, RG=25Ω 24 ns tf Fall Time V DS=325V, ID=4A, RG=25Ω 24 ns td(on) Turn-on Delay Time V DS=325V, ID=4A, RG=25Ω 13 ns td(off) Turn-off Delay Time V DS=325V, ID= 4A, RG=25Ω 30 ns Control Section fS Switching Frequency V CC=14V, VFB=4V, 60 66 72 kHz ΔfS Switching Frequency Variation(13) -25°C < TJ < +125°C ±5 ±10 % DMAX Maximum Duty Ratio V CC=14V, VFB=4V 65 70 75 % DMIN Minimum Duty Ratio V CC=14V, VFB=0V 0 % IFB Feedback Source Current V FB=0 160 210 260 μA VSTART UVLO Threshold Voltage VFB=0V, VCC Sweep 11 12 13 V VSTOP After Turn-on, VFB=0V 7.0 7.5 8.0 V VOP V CC Operating Range 13 23 V tS/S Internal Soft-Start Time V STR=40V, VCC Sweep 15 ms Burst-Mode Section VBURH Burst-Mode Voltage V CC=14V, VFB Sweep 0.6 0.7 0.8 V VBURL 0.4 0.5 0.6 V Hys 200 mV Protection Section ILIM Peak Drain Current Limit di/dt=300mA/μs 2.45 2.70 2.95 A VSD Shutdown Feedback Voltage V CC=14V, VFB Sweep 5.5 6.0 6.5 V IDELAY Shutdown Delay Current V CC=14V, VFB=4V 2.5 3.3 4.1 μA tLEB Leading-Edge Blanking Time(13)(14) 300 ns VOVP Over-Voltage Protection V CC Sweep 23.0 24.5 26.0 V tOSP Output Short Protection(13) Threshold Time OSP Triggered when tON<tOSP & VFB>VOSP (Lasts Longer than tOSP_FB) 1.0 1.2 1.4 μs VOSP Threshold V FB 1.8 2.0 2.2 V tOSP_FB V FB Blanking Time 2.0 2.5 3.0 μs TSD Thermal Shutdown Temperature(13) Shutdown Temperature +130 +140 +150 °C Hys Hysteresis +30 °C Continued on the following page…
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FSGM0465RB • Rev. 1.0.2 6 FSGM0465RB — Green-Mode Fairchild Power Switch (FPS™) Electrical Characteristics (Continued) TJ=25°C 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 1.2 1.6 2.0 mA IOPS Operating Switching Current, (Control Part and SenseFET Part) VCC=14V, VFB=4V 2.0 2.5 3.0 mA ISTART Start Current VCC=11V (Before VCC Reaches VSTART) 0.5 0.6 0.7 mA ICH Startup Charging Current V CC=VFB=0V, VSTR=40V 1.00 1.15 1.30 mA VSTR Minimum VSTR Supply Voltage V CC=VFB=0V, VSTR Sweep 26 V Notes: 13. Although these parameters are guaranteed, they are not 100% tested in production. 14. t LEB includes gate turn-on time. Comparison of FSDM0465RE and FSGM0465RB Function FSDM0465RE FSGM0465RB Advantages of FSGM0465RB Burst Mode Advanced Burst Advanced Soft Burst Low noise and low standby power Lightning Surge Strong Enhanced SenseFET and controller against lightning surge Soft-Start 10ms (Built-in) 15ms (B uilt-in) Longer soft-start time Protections OLP OVP TSD OLP OVP OSP AOCP TSD with Hysteresis Enhanced protections and high reliability Power Balance Long T CLD Very Short T CLD The difference of input power between the low and high input voltage is quite small
- Startup: At startup, an internal high-voltage current
CC goes below the stop voltage of 7.5V. Figure 17. Startup Block
- Soft-Start : The FSGM0465RB has an internal soft-
slowly after it starts. The typical soft-start time is 15ms. conditions for transformers, inductors, and capacitors. reduces stress on the secondary diode during startup.
- Feedback Control : This device employs current-
input voltage is increased or the output load is decreased.
3.1 Pulse-by-Pulse Current Limit : Because current-
the current through the SenseFET is limited.
3.2 Leading-Edge Blanking (LEB) : At the instant the
Figure 18. Pulse Width Modulation Circuit
- Protection Circuits : The FSGM0465RB has several
power SenseFET until the fault condition is eliminated. improved without increasing cost. Figure 19. Auto-Restart Protection Waveforms
4.1 Overload Protection (OLP) : Overload is defined
protection circuit should tri gger to protect the SMPS. implemented in auto-restart mode. Figure 20. Overload Protection
4.2 Abnormal Over-Current Protection (AOCP) :
latch, resulting in the shutdown of the SMPS. Figure 21. Abnormal Over-Current Protection
stress on the drain of the SenseFET when turned off. condition output short is shown in Figure 22. Figure 22. Output-Short Protection
4.4 Over-Voltage Protection (OVP): If the
CC should be designed to be below 24.5V.
4.5 Thermal Shutdown (TSD) : The SenseFET and
- Soft Burst-Mode Operation : To minimize power
thereby reducing switching loss in standby mode. Figure 23. Burst-Mode Operation
- The delay time for overload protection is designed to be about 25ms with C105 (22nF). OLP time between 25ms
(22nF) and 50ms (43nF) is recommended.
- The SMD-type capacitor (C106) must be placed as close as possible to the V CC pin to avoid malfunction by
Figure 24. Schematic of Demonstration Board
Figure 25. Schematic of Transformer
- Electrical Characteristics
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FSGM0465RB • Rev. 1.0.2 14 FSGM0465RB — Green-Mode Fairchild Power Switch (FPS™) 6. Bill of Materials Part # Value Note Part # Value Note Fuse Capacitor F101 250V 3.15A C101 220nF/275V Box (Pilkor) NTC C102 150nF/275V Box (Pilkor) NTC101 5D-11 DSC C103 100μF/400V Electrolytic (SamYoung) Resistor C104 3.3nF/630V Film (Sehwa) R101 1.5M Ω, J 0.5W C105 22nF/100V Film (Sehwa) R102 75k Ω, J 1/2W C106 220nF SMD (2012) R103 33k Ω, J 1W C107 47μF/50V Electrolytic (SamYoung) R104 62 Ω, J 1/2W C201 1000μF/25V Electrolytic (SamYoung) R201 330 Ω, J 1/4W C202 1000μF/25V Electrolytic (SamYoung) R202 1.2k Ω, F 1/4W, 1% C203 1000μF/25V Electrolytic (SamYoung) R203 18k Ω, F 1/4W, 1% C204 2200μF/10V Electrolytic (SamYoung) R204 8k Ω, F 1/4W, 1% C205 1000μF/16V Electrolytic (SamYoung) R205 8k Ω, F 1/4W, 1% C206 1000μF/16V Electrolytic (SamYoung) IC C207 47nF/100V Film (Sehwa) FSGM0465RB FSGM0465RB Fairchild Semiconductor C208 100nF SMD (2012) IC201 KA431LZ Fairchild Semiconductor C209 100nF SMD (2012) IC301 FOD817B Fairchild Semiconductor C301 4.7nF/Y2 Y-cap (Samhwa) Diode Inductor D101 RGP15M Vishay LF101 20mH Line filter 0.7Ø D102 UF4004 Vishay L201 5μH 5A Rating ZD101 1N4749 Vishay L202 5μH 5A Rating D201 MBR20150CT Fairchild Semiconductor Jumper D202 FYPF2006DN Fairchild Semiconductor J101 BD101 G3SBA60 Vishay Transformer T101 700μH
TO ANY CURRENT PACKAGING STANDARD. B) ALL DIMENSIONS ARE IN MILLIMETERS. MOLD FLASH, AND TIE BAR EXTRUSIONS. Figure 26. TO-220F-6L (W-Forming) the warranty therein, which covers Fairchild products.
A) NO PACKAGE STANDARD APPLIES. MOLD FLASH, AND TIE BAR EXTRUSIONS. C) DIMENSIONS ARE IN MILLIMETERS. Figure 27. TO-220F-6L (U-Forming) the warranty therein, which covers Fairchild products.
A) NO PACKAGE STANDARD APPLIES. MOLD FLASH, AND TIE BAR EXTRUSIONS. C) DIMENSIONS ARE IN MILLIMETERS. Figure 28. TO-220F-6L (L-Forming) the warranty therein, which covers Fairchild products.
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FSGM0465RB • Rev. 1.0.2 18 FSGM0465RB — Green-Mode Fairchild Power Switch (FPS™)