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Document overview
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Technical content
Features
Advanced Soft Burst Mode for Low Standby Power and Low Audible Noise Random Frequency Fluctuation (RFF) for Low EMI Pulse-by-Pulse Current Limit Overload Protection (OLP), Over-Voltage Protection (OVP), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD) with Hysteresis, Output-Short Protection (OSP), Line Over-Voltage Protection (LOVP), and Under-Voltage Lockout (UVLO) with Hysteresis Low Operating Current (0.4mA) in Burst Mode Internal Startup Circuit Internal Avalanche-Rugged 700V SenseFET Built-in Soft-Start: 15ms Auto-Restart Mode
Applications
Power Supply for Home Appliances, LCD Monitors, STBs, and DVD Players
Description
The FSL117MRIN is an integrated Pulse Width Modulation (PWM) controller and 700V SenseFET specifically designed for offline Switched-Mode Power Supplies (SMPS) with minimal external components. The PWM controller includes an integrated fixed- frequency oscillator, Line Over-Voltage Protection (LOVP), Under-Voltage Lockout (UVLO), Leading-Edge Blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated prec ise current sources for loop compensation, and se lf-protection circuitry. Compared with a discrete MOSFET and PWM controller solution, the FSL117MRIN can reduce total cost, component count, size, and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform for cost-effective design of a flyback converter.
Ordering Information
Part Number Package (1) Operating Junction Temperature Current Limit (Typ.) RDS(ON) (Max.) Output Power Table(2) 230VAC ±15% 85~265VAC Adapter(3) Open Frame(4) Adapter(3) Open Frame(4) FSL117MRIN 8-DIP -40°C ~ +125°C 0.8A 11 Ω 10W 15W 6W 10W Notes: 1. Pb-free package per JEDEC J-STD-020B. 2. The junction temperature can limit the maximum output power. 3. Typical continuous power in a non-v entilated enclosed adapter measured at 50C ambient temperature. 4. Maximum practical continuous power in an open-frame design at 50 C ambient temperature.
Figure 3. Pin Assignments (Top View) 1 GND Ground. This pin is the control ground and the SenseFET source.
2 V CC
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.
4 V IN
should be connected directly to the GND.
5 V STR
Startup. This pin is connected directly, or through a resistor, to the high-voltage DC link.
© 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com FSL117MRN • Rev.1.0.0 4 FSL117MRIN — Green-Mode Fairchild Power Switch (FPS™) Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may dam age the device. The device may not function or be operable above the recommended operating conditions and stressi ng 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 VSTR VSTR Pin Voltage 700 V VDS Drain Pin Voltage 700 V VCC VCC Pin Voltage 26 V VFB Feedback Pin Voltage -0.3 10.0 V VIN V IN Pin Voltage -0.3 10.0 V IDM Drain Current Pulsed(5) 4 A EAS Single Pulsed Avalanche Energy (6) 50 mJ PD Total Power Dissipation (TC=25C)(7) 1.5 W TJ Maximum Junction Temperature +150 C Operating Junction Temperature(8) -40 +125 C TSTG Storage Temperature -55 +150 C ESD Electrostatic Discharge Capability Human Body Model, JESD22-A114 5 kV Charged Device Model, JESD22-C101 2 Notes: 5. Non-repetitive rating: pulse width is limited by maximum junction temperature. 6. L=51mH, starting T J=25C. 7. Infinite cooling condition (refer to the SEMI G30-88). 8. Although this parameter guarantees IC operation, it does not guarantee all electrical characteristics. Thermal Impedance TA=25°C unless otherwise specified. All items are tested with the standards JESD 51-2 and 51-10. Symbol Parameter Value Unit θJA Junction-to-Ambient Thermal Impedance (9) 80 °C/W θJC Junction-to-Case Thermal Impedance (10) 20 °C/W Notes: 9. Free standing without heat sink; without copper clad. (Me asurement condition: Just before junction temperature TJ enter into OTP.) 10. Measured on the DRAIN pin close to plastic interface.
© 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com FSL117MRN • Rev.1.0.0 5 FSL117MRIN — Green-Mode Fairchild Power Switch (FPS™)
Electrical Characteristics
TJ = 25C unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit SenseFET Section BVDSS Drain-Source Breakdown Voltage V CC=0V, ID=200µA 700 V IDSS Zero-Gate-Voltage Drain Current VDS=560V, TA=125C 200 µA RDS(ON) Drain-Source On-State Resistance V GS=10V, ID=0.5A 8.8 11.0 Ω CISS Input Capacitance (11) V DS=25V, VGS=0V, f=1MHz 250 pF COSS Output Capacitance (11) V DS=25V, VGS=0V, f=1MHz 25 pF tr Rise Time VDS=350V, ID=1.0A 4 ns tf Fall Time VDS=350V, ID=1.0A 10 ns td(on) Turn-On Delay VDS=350V, ID=1.0A 12 ns td(off) Turn-Off Delay VDS=350V, ID=1.0A 30 ns Control Section fS Switching Frequency(11) VCC=14V, VFB=4V 61 67 73 kHz fS Switching Frequency Variation(11) -25C < TJ < 125C ±5 ±10 % DMAX Maximum Duty Ratio VCC=14V, VFB=4V 61 67 73 % DMIN Minimum Duty Ratio V CC=14V, VFB=0V 0 % IFB Feedback Source Current V FB=0V 65 90 115 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 tS/S Internal Soft-Start Time V STR=40V, VCC Sweep 15 ms VRECOMM Recommended V CC Range 13 23 V Burst Mode Section VBURH Burst-Mode Voltage V CC=14V, VFB Sweep 0.45 0.50 0.55 V VBURL 0.30 0.35 0.40 V VHys 150 mV Protection Section ILIM Peak Drain Current Limit di/dt=170mA/s 0.70 0.80 0.90 A VSD Shutdown Feedback Voltage V CC=14V, VFB Sweep 6.45 7.00 7.55 V IDELAY Shutdown Delay Current VCC=14V, VFB=4V 1.2 2.0 2.8 µA tLEB Leading-Edge Blanking Time(11,12) 300 ns VOVP Over-Voltage Protection V CC Sweep 23.0 24.5 26.0 V VINH Line Over-Voltage Protection Threshold Voltage VCC=14V, VIN Sweep 1.87 1.95 2.03 V VINHYS Line Over-Voltage Protection Hysteresis VCC=14V, VIN Sweep 0.06 V tOSP Output-Short Protection(11) Threshold Time OSP Triggered when tON<tOSP & VFB>VOSP (Lasts Longer than tOSP_FB) 0.7 1.0 1.3 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(11) Shutdown Temperature 125 135 145 C THys Hysteresis 60 C Continued on the following page…
© 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com FSL117MRN • Rev.1.0.0 6 FSL117MRIN — Green-Mode Fairchild Power Switch (FPS™) Electrical Characteristics (Continued) 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 0.8 1.2 1.6 mA ISTART Start Current VCC=11V (Before VCC Reaches VSTART) 85 120 155 A ICH Startup Charging Current VCC=VFB=0V, VSTR=40V 0.7 1.0 1.3 mA VSTR Minimum VSTR Supply Voltage V CC=VFB=0V, VSTR Sweep 26 V Notes: 11. Although these parameters are guaranteed, they are not 100% tested in production. 12. t LEB includes gate turn-on time.
Characteristic graphs are normalized at TA=25°C.
- Startup: At startup, an internal high-voltage current
Figure 18. Startup Block
- Soft-Start: The internal soft-start circuit increases 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-
FB*), as shown in Figure 19. the current through the SenseFET is limited.
3.2 Leading-Edge Blanking (LEB) : At the instant the
LEB (300ns) after the SenseFET is turned on. Figure 19. Pulse Width Modulation Circuit
- Protection Circuits : The FSL117MRIN has several
power SenseFET until the faul t condition is eliminated. improved without increasing cost. Figure 20. Auto-Restart Protection Waveforms
4.1 Overload Protection (OLP) : Overload is defined
protection circuit should trigger to protect the SMPS. implemented as Auto-Restart Mode. Figure 21. Overload Protection
4.2 Abnormal Over-Curre nt Protection (AOCP) :
resulting in the shutdown of the SMPS. Figure 22. Abnormal Over-Current Protection
stress on the drain of the SenseFET when turned off. output short is shown in Figure 23. Figure 23. Output-Short Protection
4.4 Over-Voltage Protection (OVP): If the
be designed to be below 24.5V.
4.5 Thermal Shutdown (TSD) : The SenseFET and
thermal shutdown is tr iggered and stops operation.
4.6 Line Over-Voltage Protection (LOVP) : If the line
VIN decreases to around 1.89V (60mV hysteresis). Figure 24. Line Over-Voltage Protection
- Soft Burst Mode: To minimize power dissipation in
Standby Mode, the FSL117MRI N enters Burst Mode. SenseFET, reducing switching loss in Standby Mode. Figure 25. Burst-Mode Operation
- Random Frequency Fluctuation (RFF) :
requirements (e.g. EN55022). Figure 26. Random Frequency Fluctuation
Figure 27. 8-Lead, Dual Inline Package, 8DIP. warranty therein, which covers Fairchild products. http://www.fairchildsemi.com/packaging/.
5.08 MAX
0.33 MIN
B) ALL DIMENSIONS ARE IN MILLIMETERS. MOLD FLASH, AND TIE BAR EXTRUSIONS. E) DRAWING FILENAME AND REVSION: MKT-N08FREV2.
© 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com FSL117MRN • Rev.1.0.0 15 FSL117MRIN — Green-Mode Fairchild Power Switch (FPS™)