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Document overview
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Technical content
Features
Internal Avalanche-Rugged SenseFET: 650V Precision Fixed Operating Frequency: 67kHz No-Load <150mW at 265VAC without Bias Winding; <25mW with Bias Winding for FSL206MR, <30mW with Bias Winding for FSL206MRBN No Need for Auxiliary Bias Winding Frequency Modulation for Attenuating EMI Line Under-Voltage Protection (LUVP) Pulse-by-Pulse Current Limiting Low Under-Voltage Lockout (UVLO) Ultra-Low Operating Current: 300µA Built-In Soft-Start and Startup Circuit Various Protections: Overload Protection (OLP), Over-Voltage Protection (OVP), Thermal Shutdown (TSD), Abnormal Over-Current Protection (AOCP) Auto-Restart Mode for All Protections
Applications
SMPS for STB, DVD, and DVCD Player SMPS for Auxiliary Power
Description
The FSL206MR integrated Pu lse-Width Modulator (PWM) and SenseFET is specifically designed for high- performance offline Switched-Mode Power Supplies (SMPS) while minimizing external components. This device integrates high-vo ltage power regulators that combine an avalanche-rugged SenseFET with a Current-Mode PWM control block. The integrated PWM controller includes: a 7.8V regulator, eliminating the need for auxilliary bias winding; Under-Voltage Lock out (UVLO) protection; Leading-Edge Blanking (LEB); an optimized gate turn- on/turn-off driver; EMI attenuator; Thermal Shutdown (TSD) protection; temperat ure-compensated precision current sources for loop com pensation; soft-start during startup; and fault-pr otection circuitry such as Overload Protection (OLP), Over-V oltage Protection (OVP), Abnormal Over-Current Protection (AOCP), and Line Under-Voltage Protection (LUVP). The internal high-voltage st artup switch and the Burst- Mode operation with very lo w operating current reduce the power loss in Standby Mode. As a result, it is possible to reach a power loss of 150mW with no bias winding and 25mW (for FS L206MR) or 30mW (for FSL206MRBN) with a bias winding under no-load conditions when the input voltage is 265V AC. Related Resources Fairchild Power Supply WebDesigner – Flyback Design and Simulation – In Minutes at No Expense AN-4137 — Design Guidelines for Offline Flyback Converters Using FPS™ AN-4141 — Troubleshooting and Design Tips for Fairchild Power Switch (FPS™) Flyback AN-4147 — Design Guidelines for RCD Snubber of Flyback AN-4150 — Design Guidelines for Flyback Converters Using FSQ-Series Fairchild Power Switch (FPS™)
Figure 3. Pin Configuration 1 GND Ground. SenseFET source terminal on primary side and internal control ground.
2 V CC
startup switch opens and device power is supplied via the auxiliary transformer winding.
3 V FB
mechanism to operate under true overload conditions. rated input voltage range. If this pin is not used, connect to ground.
5 V STR
voltage regulator (HV REG) turns on and off irregularly to maintain VCC at 7.8V. transformer decreases leakage inductance.
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FSL206MR • Rev. 1.0.5 4 FSL206MR — Green Mode Fairchild Power Switch (FPS™) Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The devic e may not function or be operable above the recommended operating c onditions 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. TA = 25°C unless otherwise specified. Symbol Parameter Min. Max. Unit VSTR V STR Pin Voltage -0.3 650.0 V VDS Drain Pin Voltage -0.3 650.0 V VCC Supply Voltage 26 V VLS LS Pin Voltage -0.3 Internally Clamped Voltage(4) V VFB Feedback Voltage Range -0.3 Internally Clamped Voltage(4) V IDM Drain Current Pulsed (5) 1.5 A EAS Single-Pulsed Avalanche Energy (6) 11 mJ PD Total Power Dissipation 1.3 W TJ Operating Junction Te mperature -40 +150 °C TA Operating Ambient Te mperature -40 +125 °C TSTG Storage Temperature -55 +150 °C ESD Human Body Model, JESD22-A114 4 KV Charged Device Model, JESD22-C101 2 Notes: 4. V FB is clamped by internal clamping diode (13V ICLAMP_MAX < 100μA). After shutdown, before VCC reaching VSTOP, VSD < VFB < VCC. 5. Repetitive rating: pulse-width limit ed by maximum junction temperature. 6. L=21mH, starting T J=25°C. Thermal Impedance TA=25°C unless otherwise specified. Symbol Parameter Value Unit θJA Junction-to-Ambient Thermal Impedance (7) 93 °C/W Notes: 7. JEDEC recommended environment, JESD51-2 and test board, JESD51-10 with minimum land pattern for 8DIP and JESD51-3 with minimum land pattern for 8LSOP.
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FSL206MR • Rev. 1.0.5 5 FSL206MR — Green Mode Fairchild Power Switch (FPS™)
Electrical Characteristics
TA = 25°C unless otherwise specified. Symbol Parameter Condition Min. Typ. Max. Unit SenseFET Section BVDSS Drain-Source Breakdown Voltage V CC = 0V, ID = 250µA 650 V IDSS Zero Gate Voltage Drain Current VDS = 650V, VGS = 0V 50 µA VDS = 520V, VGS = 0V, TA = 125°C(8) 250 µA RDS(ON) Drain-Source On-State Resistance (9) V GS = 10V, ID = 0.3A 14 19 Ω CiSS Input Capacitances V GS = 0V, VDS = 25V, f = 1MHz 162 pF COSS Output Capacitance V GS = 0V, VDS = 25V, f = 1MHz 14.9 pF CRSS Reverse Transfer Capacitance V GS = 0V, VDS = 25V, f = 1MHz 2.7 pF tr Rise Time V DS = 325V, ID = 0.5A, RG = 25Ω 6.1 ns tf Fall Time V DS = 325V, ID = 0.5A, RG = 25Ω 43.6 ns Control Section fOSC Switching Frequency V FB = 4V, VCC = 10V 61 67 73 KHz ∆fOSC Switching Frequency Variation -25°C < T J < 85°C ±5 ±10 % fM Frequency Modulation (8) ±3 KHz DMAX Maximum Duty Cycle V FB = 4V, VCC = 10V 66 72 78 % DMIN Minimum Duty Cycle V FB = 0V, VCC = 10V 0 0 0 % VSTART UVLO Threshold Voltage VFB = 0V, VCC Sweep 7 8 9 V VSTOP After Turn On 6 7 8 V IFB Feedback Source Current V FB= 0V, VCC = 10V 90 110 130 µA tS/S Internal Soft-Start Time V FB = 4V, VCC = 10V 10 15 20 ms Burst Mode Section VBURH Burst-Mode HIGH Threshold Voltage VCC = 10V, VFB Increase FSL206MR 0.66 0.83 1.00 V FSL206MRB 0.40 0.50 0.60 V VBURL Burst-Mode LOW Threshold Voltage VCC = 10V, VFB Decrease FSL206MR 0.59 0.74 0.89 V FSL206MRB 0.28 0.35 0.42 V HYSBUR Burst-Mode Hysteresis FSL206MR 90 mV FSL206MRB 150 mV Protection Section ILIM Peak Current Limit VFB = 4V, di/dt = 300mA/µs, VCC = 10V 0.54 0.60 0.66 A tCLD Current Limit Delay (8) 100 ns VSD Shutdown Feedback Voltage V CC = 10V 4.5 5.0 5.5 V IDELAY Shutdown Delay Current V FB = 4V 2.1 2.7 3.3 µA tLEB Leading-Edge Blanking Time (8) 250 ns VAOCP Abnormal Over-Current Protection (8) 0.7 V VOVP Over-Voltage Protection V FB = 4V, VCC Increase 23.0 24.5 26.0 V VLS_OFF Line-Sense Protection On to Off V FB = 3V, VCC = 10V, VLS Decrease 1.9 2.0 2.1 V VLS_ON Line-Sense Protection Off to On V FB = 3V, VCC = 10V, VLS Increase 1.4 1.5 1.6 V TSD Thermal Shutdown Temperature (8) 125 135 150 °C HYSTSD TSD Hysteresis Temperature (8) 60 °C Continued on the following page…
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FSL206MR • Rev. 1.0.5 6 FSL206MR — Green Mode Fairchild Power Switch (FPS™) Electrical Characteristics (Continued) TA = 25°C unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Units High Voltage Regulator Section VHVR HV Regulator Voltage V FB = 0V, VSTR = 40V 7.8 V Total Device Section IOP1 Operating Supply Current (Control Part Only, without Switching) VCC = 15V, 0V<VFB<VBURL 0.3 0.5 mA IOP2 Operating Supply Current (Control Part Only, without Switching) VCC = 8V, 0V<VFB<VBURL 0.25 0.45 mA IOP3 Operating Supply Current(8) (While Switching) VCC = 15V, VBURL<VFB<VSD 1.3 mA ICH Startup Charging Current V CC = 0V, VSTR > 40V 1.6 1.9 2.2 mA ISTART Startup Current V CC = Before VSTART, VFB = 0V 100 150 µA VSTR Minimum V STR Supply Voltage V CC = VFB = 0V, VSTR Increase 26 V Notes: 8. Though guaranteed by design, not 100% tested in production. 9. Pulse test: pulse width=300ms, duty cycle=2%.
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. Figure 24. 8-Lead, Dual In-Line Package (DIP) warranty therein, which covers Fairchild products.
Figure 25. 8-Lead, .300" Wide , Surface Mount Package (LSOP) warranty therein, which covers Fairchild products.
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FSL206MR • Rev. 1.0.5 14 FSL206MR — Green Mode Fairchild Power Switch (FPS™)