FLS1600XS FAIRCHILD | Alldatasheet
Document overview
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Technical content
Features
Variable Frequency Control with 50% Duty Cycle for Half-Bridge Resonant Converter Topology High Efficiency through Zero Voltage Switching (ZVS) Internal UniFET™ with Fast-Recovery Body Diode Fixed Dead Time (350ns) Optimized for MOSFETs Up to 300kHz Operating Frequency Auto-Restart Operation for All Protections with External LVCC Protection Functions: Over-Voltage Protection (OVP), Over-Current Protection (OCP), Abnormal Over- Current Protection (AOCP), Internal Thermal Shutdown (TSD)
Applications
General LED Lighting Power Industrial, Commercial, and Residential LED Lighting Fixtures Outdoor Lighting: Street, Roadway, Parking, Construction and Ornamental LED Lighting Fixtures
Description
The FLS-XS series of general lighting power controllers includes highly integrated power switches for medium- to high-power lumens applications. Offering everything necessary to build a reliable and robust half-bridge resonant converter, the FLS-XS series simplifies designs and improves productivity, while improving performance. The FLS-XS series combines power MOSFETs with fast- recovery type body diodes, a high-side gate-drive circuit, an accurate current controlled oscillator, frequency limit circuit, soft-start, and built-in protection functions. The high-side gate-drive circuit has common-mode noise cancellation capability, which guarantees stable operation with excellent noise immunity. The fast- recovery body diode of the MOSFETs improves reliability against abnormal operation conditions, while minimizing the effect of reverse recovery. Using zero voltage switching (ZVS) dramatically reduces the switching losses and significantly improves efficiency. ZVS also reduces switching noise noticeably, which allows a small- sized Electromagnetic Interference (EMI) filter. The FLS-XS series can be applied to resonant converter topologies such as series resonant, parallel resonant, and LLC resonant converters.
Ordering Information
RDS(ON_MAX) Maximum Output Power without Heatsink Maximum Output Power with Heatsink FLS2100XS 9-SIP -40 to +130°C 0.51Ω 180W 400W FLS1800XS 0.95Ω 120W 260W FLS1700XS 1.25Ω 100W 200W FLS1600XS 1.55Ω 80W 160W Notes: 1. The junction temperature can limit the maximum output power. 2. Maximum practical continuous power in an open-frame design at 50 °C ambient.
Figure 3. Package Diagram 1 V DL This is the drain of the high-side MOSFET, typically connected to the input DC link voltage. controller starts to operate again. the switching frequency for the output voltage regulation. voltage is applied on this pin. 5 SG This pin is the control ground. 6 PG This pin is the power ground. This pin is connected to the source of the low-side MOSFET. 7 LV CC This pin is the supply voltage of the control IC.
8 NC No connection
9 HV CC This is the supply voltage of the high-side gate-drive circuit IC. 10 V CTR This is the drain of the low-side MOSFET. Typically, a transformer is connected to this pin.
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FLS-XS Series • Rev.1.0.0 4 FLS-XS Series— Half-Bridge LLC Resonant Control ICfor Lighting 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. T A=25°C unless otherwise specified. Symbol Parameter Min. Max. Unit VDS Maximum Drain-to-Source Voltage (V DL-VCTR and VCTR-PG) 500 V LVCC Low-Side Supply Voltage -0.3 25.0 V HVCC to VCTR High-Side V CC Pin to Low-Side Drain Voltage -0.3 25.0 V HVCC High-Side Floating Supply Voltage -0.3 525.0 V VAR Auto-Restart Pin Input Voltage -0.3 LV CC V VCS Current-Sense (CS) Pin Input Voltage -5.0 1.0 V VRT R T Pin Input Voltage -0.3 5.0 V dVCTR/dt Allowable Low-Side MOSFET Drain Voltage Slew Rate 50 V/ns PD Total Power Dissipation (3) FLS2100XS 12.0 W FLS1800XS 11.7 FLS1700XS 11.6 FLS1600XS 11.5 TJ Maximum Junction Temperature(4) +150 °C Recommended Operating Junction Temperature(4) -40 +130 TSTG Storage Temperature Range -55 +150 °C MOSFET Section VDGR Drain Gate Voltage (RGS=1MΩ) 500 V VGS Gate Source (GND) Voltage ±30 V IDM Drain Current Pulsed (5) FLS2100XS 32 A FLS1800XS 23 FLS 1700XS 20 FLS 1600XS 18 ID Continuous Drain Current FLS2100XS TC=25°C 10.5 A TC=100°C 6.5 FLS1800XS TC=25°C 7.0 TC=100°C 4.5 FLS 1700XS TC=25°C 6.0 TC=100°C 3.9 FLS 1600XS TC=25°C 4.5 TC=100°C 2.7 Package Section Torque Recommended Screw Torque 5~7 kgf·cm Notes: 3. Per MOSFET when both MOSFETs are conducting. 4. The maximum value of the recommended operating junction temperature is limited by thermal shutdown. 5. Pulse width is limited by maximum junction temperature.
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FLS-XS Series • Rev.1.0.0 5 FLS-XS Series— Half-Bridge LLC Resonant Control ICfor Lighting Thermal Impedance TA=25°C unless otherwise specified. Symbol Parameter Value Unit θJC Junction-to-Case Center Thermal Impedance (Both MOSFETs Conducting) FLS2100XS 10.44 ºC/W FLS1800XS 10.68 FLS 1700XS 10.79 FLS 1600XS 10.89
Electrical Characteristics
TA=25°C unless otherwise specified. Symbol Parameter Test Conditi ons Min. Typ. Max. Unit MOSFET Section BVDSS Drain-to-Source Breakdown Voltage ID=200μA, TA=25°C 500 V ID=200μA, TA=125°C 540 RDS(ON) On-State Resistance FLS2100XS V GS=10V, ID=6.0A 0.41 0.51 Ω FLS1800XS VGS=10V, ID=3.0A 0.77 0.95 FLS 1700XS VGS=10V, ID=2.0A 1.00 1.25 FLS 1600XS VGS=10V, ID=2.25A 1.25 1.55 trr Body Diode Reverse Recovery Time(6) FLS2100XS VGS=0V, IDiode=10.5A, dIDiode/dt=100A/μs 120 ns FLS1800XS VGS=0V, IDiode=7.0A, dIDiode/dt=100A/μs 160 FLS 1700XS VGS=0V, IDiode=6.0A, dIDiode/dt=100A/μs 160 FLS 1600XS VGS=0V, IDiode=5.0A, dIDiode/dt=100A/μs 65 Supply Section ILK Offset Supply Leakage Current HV CC=VCTR=500V 50 μA IQHVCC Quiescent HV CC Supply Current (HV CCUV+) - 0.1V 50 120 μA IQLVCC Quiescent LV CC Supply Current (LV CCUV+) - 0.1V 100 200 μA IOHVCC Operating HVCC Supply Current (RMS Value) fOSC=100KHz 6 9 mA No Switching 100 200 μA IOLVCC Operating LVCC Supply Current (RMS Value) fOSC=100KHz 7 11 mA No Switching 2 4 mA Continued on the following page…
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FLS-XS Series • Rev.1.0.0 6 FLS-XS Series— Half-Bridge LLC Resonant Control ICfor Lighting TA=25°C unless otherwise specified. UVLO Section LVCCUV+ LV CC Supply Under-Voltage Positive-Going Threshold (LVCC Start) 11.2 12.5 13.8 V LVCCUV- LV CC Supply Under-Voltage Negative-Going Threshold (LVCC Stop) 8.9 10.0 11.1 V LVCCUVH LV CC Supply Under-Voltage Hysteresis 2.50 V HVCCUV+ HV CC Supply Under-Voltage Positive-Going Threshold (HVCC Start) 8.2 9.2 10.2 V HVCCUV- HV CC Supply Under-Voltage Negative-Going Threshold (HVCC Stop) 7.8 8.7 9.6 V HVCCUVH HV CC Supply Under-Voltage Hysteresis 0.5 V Oscillator & Feedback Section VRT V-I Converter Threshold Voltage RT=5.2KΩ 1.5 2.0 2.5 V fOSC Output Oscillation Frequency 94 100 106 KHz DC Output Duty Cycle 48 50 52 % fSS Internal Soft-Start Initial Frequency fSS=fOSC+40kHz, RT=5.2KΩ 140 KHz tSS Internal Soft-Start Time 2 3 4 ms Protection Section VCssH Beginning Voltage to Discharge C SS 0.9 1.0 1.1 V VCssL Beginning Voltage to Charge CSS and Restart 0.16 0.20 0.24 V VOVP LV CC Over-Voltage Protection LV CC > 21V 21 23 25 V VAOCP AOCP Threshold Voltage -1.0 -0.9 -0.8 V tBAO AOCP Blanking Time (6) V CS < VAOCP 50 ns VOCP OCP Threshold Voltage -0.64 -0.58 -0.52 V tBO OCP Blanking Time (6) V CS < VOCP 1.0 1.5 2.0 μs tDA Delay Time (Low Side) Detecting from VAOCP to Switch Off(6) 250 400 ns TSD Thermal Shutdown Temperature (6) +120 +135 +150 °C Dead-Time Control Section DT Dead Time (7) 350 ns Notes: 6. This parameter, although guaranteed by design, is not tested in production. 7. These parameters, although guaranteed, are tested only in EDS (wafer test) process.
Figure 19. Frequency Sweeping of Soft-Start
- Self Auto-Restart : The FLS-XS series can restart
the M1 switch turns on and the V-I converter is disabled. VCssH, then CSS is discharged by M1. Figure 20. Internal Block of AR Pin The soft-start time ts/s can be set from Equation (4). Figure 21. Self Auto-Restart Operation
- Protection Circuits : The FLS-XS series has several
Voltage Protection (OVP), and Thermal Shutdown (TSD). reaches the start voltage of 12.5V. Figure 22. Protection Blocks
5.1 Over-Current Protection (OCP) : When the
premature shutdown during startup.
5.2 Abnormal Over-Current Protection (AOCP) : If
5.3 Over-Voltage Protection (OVP) : When the LV CC
5.4 Thermal Shutdown (TSD) : Having the MOSFETs
approximately 130°C, thermal shutdown triggers.
- Current Sensing Using a Resistor: FLS-XS series
sensing has less switching noise in the sensing signal. Figure 23. Half-Wave Sensing Figure 24. Full-Wave Sensing
- PCB Layout Guidelines : Duty imbalance problems
example for the duty-balanced case. Figure 25. Example for Duty Balancing
Figure 26. 9-Lead Single Inline Package (SIP) specifically the warranty therein, which covers Fairchild products.
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FLS-XS Series • Rev.1.0.0 13 FLS-XS Series— Half-Bridge LLC Resonant Control ICfor Lighting