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Document overview
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Technical content
Features
Advanced Soft Burst Mode for Low Standby Pow er and Low Audible Noise Random Frequency Fluctuation (RFF) for Low EMI Under 50 mW Standby Pow er Consumption at
265 VAC, No-load Condition w ith Burst Mode
Puls e-by-Pulse Current Limit Overload Protection (OLP), Over-Voltage Protection (OVP), Abnormal Over -Current Protection (AOCP), Internal Thermal Shutdow n (TSD) w ith Hysteresis, Output-Short Protection (OSP), Line Over-Voltage Protection ( LOV P), and Under-Voltage Lockout (UVLO) w ith Hysteresis Low Operating Current (0.4 mA) in Burst Mode Internal Startup Circuit Internal Avalanche- Rugged 700 V SenseFET Built-in Soft -Start: 15 ms Auto-Restart Mode
Applications
Pow er Supply for Home Appliances, LCD Monitors, STBs, and DVD Players
Description
The FSL117MRIN is an integr ated Puls e Width Modulation ( PWM) controller and 700 V Sens eFET specifically des igned for offline Sw itched- M ode Pow er Supplies ( SMPS) w ith minimal external c omponents. The PWM controller includes an integrated fixed- frequency oscillator , Line Over -Voltage Protection (LOV P) , Under -Voltage Lockout ( UVLO), Leading- Edge Blanking (LEB) , optimized gate driver, internal soft-start, temperature -compensated prec ise curr ent sources for loop compensation, and self -protection circuitry. Compar ed w ith a discrete MOSFET and PWM controller solution, the FSL117MRIN can reduce total cost, component count, size, and w eight; w hile s i multaneously increasing efficiency, productiv ity, and system reliability. This dev ice pr ovides a bas ic platfor m 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 0.8 A 11 Ω 10 W 15 W 6 W 10 W N otes: 1. Pb-free package per JEDEC J -STD-020B. 2. The junction temperature can limit the maximum output pow er. 3. Typical continuous pow er in a non-ventilated enclosed adapter measured at 50° C ambient temperature. 4. Maximum practical continuous pow er 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 VCC
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, w hich shuts dow n the Pow er Sw itch.
4 VIN
used, this pin should be connected directly to the GND.
5 VSTR
Startup. This pin is connected directly, or through a resistor, to the high -voltage DC link.
www.onsemi.com FSL117MRIN — Green-Mode Power Switch Absolute Maximum Ratings 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 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 VIN Pin Voltage -0.3 10.0 V IDM Drain Current Pulsed(5) 4 A ID Drain Current Continuous (TC=25°C) 1 A EAS Single Pulsed Avalanche Energy (6) 50 mJ PD Total Pow er Dissipation (TC=25°C)(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-C10 1 2 N otes: 5. Non-repetitive rating: pulse w idth is limited by maximum junction temperature. 6. L=51mH, starting T J=25°C. 7. Infinite cooling condition (refer to the SEMI G30- 88). 8. Although this parameter guarantees IC operation, it does not guarantee all electrical characteri stics. Thermal Impedance TA=25°C unless otherw ise specified. All items are tested w ith the standards JESD 51- 2 and 51- 10. Symbol Parameter Value Unit θJA Junction-to-Ambient Thermal Impedance (9) 85 °C/W θJC Junction-to-Case Thermal Impedance(10) 20 °C/W N otes: 9. Free standing w ithout heat sink; w ithout copper clad. (Measurement condition: Just before junction temperature TJ enters into OTP.) 10. Measured on the DRAIN pin close to plastic interface.
www.onsemi.com FSL117MRIN — Green-Mode Power Switch
Electrical Characteristics
TJ = 25°C unless otherw ise specified. Symbol Parameter Conditions Min. Typ. Max. Unit SenseF E T Section BVDSS Drain-Source Breakdow n Voltage VCC=0 V, ID=200 µA 700 V IDSS Zero-Gate-Voltage Drain Current VDS=560 V, TA=125°C 200 µA RDS(ON) Drain-Source On-State Resistance VGS=10 V, ID=0.5 A 8.8 11.0 Ω CISS Input Capacitance(11) VDS=25 V, VGS=0 V, f=1 MHz 250 pF COSS Output Capacitance(11) VDS=25 V, VGS=0 V, f=1 MHz 25 pF tr Rise Time VDS=350 V, ID=1.0 A 4 ns tf Fall Time VDS=350 V, ID=1.0 A 10 ns td(on) Turn-On Delay VDS=350 V, ID=1.0 A 12 ns td(off) Turn-Off Delay VDS=350 V, ID=1.0 A 30 ns Control Section fS Sw itching Frequency(11) VCC=14 V, VFB=4 V 61 67 73 kHz ∆fS Sw itching Frequency Variation(11) -25°C < TJ < 125°C ±5 ±10 % DMAX Maximum Duty Ratio VCC=14 V, VFB=4 V 61 67 73 % DMIN Minimu m Duty Ratio VCC=14 V, VFB=0 V 0 % IFB Feedback Source Current VFB=0 V 65 90 115 µA VSTART UVLO Threshold Voltage VFB=0 V, VCC Sw eep 11 12 13 V VSTOP After Turn-on, VFB=0 V 7.0 7.5 8.0 V tS/S Internal Soft -Start Time VSTR=40 V, VCC Sw eep 15 ms VRECOMM Recommended V CC Range 13 23 V Bur s t Mode Section VBURH Burst-Mode Voltage VCC=14 V, VFB Sw eep 0.45 0.50 0.55 V VBURL 0.30 0.35 0.40 V VH ys 150 mV Protection Section ILIM Peak Drain Current Limit di/dt=170 mA /µs 0.70 0.80 0.90 A VSD Shutdow n Feedback Voltage VCC=14 V, VFB Sw eep 6.45 7.00 7.55 V IDELAY Shutdow n Delay Current VCC=14 V, VFB=4 V 1.2 2.0 2.8 µA tLEB Leading-Edge Blanking Time(11,12) 300 ns VOVP Over-Voltage Protection VCC Sw eep 23.0 24.5 26.0 V VINH Line Over-Voltage Protection Threshold Voltage VCC=14 V, VIN Sw eep 1.885 1.950 2.015 V VINHYS Line Over-Voltage Protection Hysteresis VCC=14 V, VIN Sw eep 0.06 V tOSP Output-Short Protection(11) Threshold Time OSP Triggered w hen tON<tOSP & VFB>VOSP (Lasts Longer than t OSP_FB) 0.7 1.0 1.3 µs VOSP Threshold V FB 1.8 2.0 2.2 V tOSP_FB VFB Blanking Time 2.0 2.5 3.0 µs TSD Thermal Shutdow n Temperature(11) Shutdow n Temperature 125 135 145 °C TH ys Hysteresis 60 °C Continued on the following page…
www.onsemi.com FSL117MRIN — Green-Mode Power Switch Electrical Characteristics (Continued) TJ = 25°C unless otherw ise specified. Symbol Parameter Conditions Min. Typ. Max. Unit Total Device Section IOP Operating Supply Current, (Control Part in Burst Mode) VCC=14 V, VFB=0 V 0.3 0.4 0.5 mA IOPS Operating Sw itching Current, (Control Part and SenseFET Part) VCC=14 V, VFB=2 V 0.8 1.2 1.6 mA ISTART Start Current VCC=11 V (Before VCC Reaches VSTART) 85 120 155 µA ICH Startup Charging Current VCC=VFB=0 V, VSTR=40 V 0.7 1.0 1.3 mA VSTR Minimu m VSTR Supply Voltage VCC=VFB=0 V, VSTR Sw eep 26 V N otes: 11. Although these parameters are guaranteed, they are not 100% tested in production. 12. tLEB includes gate turn- on time.
Characteristic graphs are normalized at T A=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 Curre nt Lim it: Because current -
FB*), as show n in Figure 19.
2.5 V, the maximum voltage of the cathode of D2 is
the current through the SenseFET is limited.
3.2 Leading -E dge Blanking (LEB): At the instant the
LEB (300 ns) after the SenseFET is turned on. Figure 19. Pulse Width Modulation Circuit
- Protection Circuits : The FSL117MRIN has several
the SenseFET rema ins off. This causes V CC to fall. pow er SenseFET until the fault condition is eliminated . improved w ithout increasing cost. Figure 20. Auto-Restart Protection Waveforms
4.1 Overload Protection (OLP ): Overload is defined
protection circuit should tr igger to protect the SMPS. implemented as Auto-Restart Mode. Figure 21. Overload Protection
4.2 Abnormal Over -Current Protection (AOCP) :
resulting in the shutdow n of the SMPS. Figure 22. Abnormal Over -Current Protection
stress on the drain of the Sen seFET w hen turned off.
2.0 V and the SenseFET turn-on time is low er than
output short is show n in Figure 23. Figure 23. Output-Short Protection
4.4 Over -Voltage Protection (OVP): If the
be designed to be below 24.5 V.
4.5 Thermal Shutdown (TSD) : Th e SenseFET and
ther mal shutdow n is triggered and stops operation.
4.6 Line Over -Voltage Protection (LOVP) : If the line
Figure 24. Line Over -Voltage Protection pF capacitance betw een the VIN and GND pins.
Figure 27. 8-Lead, Dual Inline Package , 8DIP. conditions, specifically the warranty therein, which covers ON Semi conductor products.
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.
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