FAN7711N Fairchild Semiconductor, FAN7711N Datasheet
FAN7711N
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FAN7711N Summary of contents
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... Adjustable Run Frequency and Preheat Time Internal Active ZVS Control Internal Protection Function (Latch Mode) Internal Clamping Zener Diode High Accuracy Oscillator Soft-Start Functionality Applications Electronic Ballast Ordering Information Part Number Package FAN7711N 8-DIP FAN7711M 8-SOP FAN7711MX Typical Application Main C1 Supply ...
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... SDH 5V/3V ADAPTIVE ZVS ENABLE LOGIC Pin Configuration Pin Definitions Pin # Name CPH 4 GND © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0 10V REG 15V SHUNT REGULATOR RT BIAS & SYSTEM LATCH SDH I UVLO PH UVLO BGR CPH BIAS TSD SDL SYSHALT 3V 5V ...
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... Power dissipation D θ Thermal resistance (junction-to-air) JA Note not supply a low-impedance voltage source to the internal clamping Zener diode between the GND and the V pin of this device. © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 =25°C unless otherwise specified. A Parameter 8-SOP 8-DIP 8-SOP ...
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... Maximum allowable negative V ( signal propagation to high-side output Protection Section V Shutdown voltage CPHSD I Shutdown current SD (2) TSD Thermal shutdown Note: 2. This parameter, although guaranteed, is not 100% tested in production. © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 V increasing DD V decreasing DD I =10mA 10V DD 50kHz ...
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... Temperature [°C] Figure 6. Ignition Current vs. Temp 100 -40 - Temperature [°C] Figure 8. Start-Up Current vs. Temp. © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 3.0 2.5 2.0 1.5 1.0 - 100 120 Figure 5. Preheating Current vs. Temp. 4.0 3.5 3.0 2.5 2 100 120 -40 400 300 ...
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... Temperature [°C] Figure 12. V Clamp Voltage vs. Temp -40 - Temperature [°C] Figure 14. Running Frequency vs. Temp. © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 (Continued) 10.0 9.6 9.2 8.8 8.4 8 100 120 -40 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1 100 120 -40 Figure 13 ...
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... Typical Characteristics 1.8 1.6 1.4 1.2 1.0 0.8 0.6 -40 - Temperature [°C] Figure 16. Minimum Dead Time vs. Temp. © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 (Continued) 4.0 3.6 3.2 2.8 2.4 2 100 120 -40 Figure 17. Maximum Dead Time vs. Temp 100 120 Temperature [°C] ...
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... Accordingly, the oscillation frequency is changed in the following sequence: Preheating freq.->Ignition freq.-> Normal running freq. © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 Before the lamp is ignited, the lamp impedance is very high. Once the lamp is turned on, the lamp impedance significantly decreases ...
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... CPH control or the active ZVS circuit. The active ZVS circuit automatically detects lamp condition) and decreases CPH voltage below 2V to protect the inverter switches from damage. © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 R =100k L R =10k ...
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... OSC Dead time FAN7711 Rev. 1.00 Figure 21. Typical Transient Waveform from Preheating to Active ZVS Mode © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 3.4 Shutdown Mode If the voltage of capacitor CPH is decreased below ~2. external application circuit or internal protection circuit, the IC enters shutdown mode. Once ...
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... Running mode Active ZVS mode OUT 0V Preheating period Ignition period (Filament warm-up) Figure 24. CPH Voltage Variation in Open-Lamp Condition © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 5. Power Supply V When V DC little current, I the Figure 25). Once UVLO is released, the current consumption is increased and whole circuits are ...
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... VDD regulator CPH V S GND LO C Dp1 FAN7711 Rev. 1.00 Charge Pump Figure 26. Implementation of Floating Power Supply Using the Bootstrap Method © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 is reverse-biased and B voltage decreases the high-side driver LCC resonant tank Charging path ...
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... For safe start-up with restart from shutdown mode: − DDTH < < R start I SD © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0 start However not recommended to choose R range because V increases the lamp's turn-on delay time, as depicted in Figure 27. as high as start V DDTH(ST+) V DDTH(ST-) 311 ...
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... VDD Dp2 f=1 DT:dead time I dp1 Figure 29. Charge Pump Operation © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 3. Lamp Turn-on Time The turn-on time of the lamp is determined by supply build-up time t to the IC is where t CP IC's supply voltage exceeds V restart, the IC operates in preheating mode. This ...
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... The signal GND must be separated from the power GND. So, the signal GND should be directly connected to the rectify capacitor using an individual PCB trace. © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 In addition, the ground return path of the timing to GND ...
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... Typical Application Diagram FUSE TNR NPUT C4 Rectified Waveform D50 R50 D51 R51 R52 CPH R53 4 C52 GND C51 C50 FAN7711 Rev. 1.00 © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 Rectified Waveform NTC COMP C10 C54 C53 D52 R54 R55 R56 ...
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... C8 39pF/50V C9 1µF/50V C10 0.1µF/50V C11 47µF/450V C50 10µF/50V C51 1µF/50V C52 0.47µF/25V C53 100nF/50V C54 470pF/1kV © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 Note Part C55 1/2W C56 1/4W C57 1/2W C58 1/4W 1/4W D1 1/4W D2 1/4W D3 1/4W ...
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... R5 47Ω Capacitor C1 22µF/250V C2 10µF/50V C3 470nF/25V C4 100nF/25V C5 470pF/630V C6 33nF/630V C7 3.3nF/1kV Note: 3. Refer to the typical application circuit provided in Figure 1. © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 Note Part 1/4W D1 1/4W D2 1/4W D3 1/ Electrolytic Capacitor Electrolytic Capacitor L1 Miller Capacitor ...
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... Package Dimensions 8-SOP Dimensions are in millimeters unless otherwise noted. © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 Figure 33. 8-Lead Small Outline Package (SOP) 19 www.fairchildsemi.com ...
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... Package Dimensions 8-DIP Dimensions are in inches and [millimeters] unless otherwise noted. © 2007 Fairchild Semiconductor Corporation FAN7711 Rev. 1.0.3 Figure 34. 8-Lead Dual In-Line Package (DIP) 20 www.fairchildsemi.com ...
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... TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended exhaustive list of all such trademarks. ® ACEx Across the board. Around the world. ActiveArray Bottomless Build it Now CoolFET CorePLUS CROSSVOLT CTL™ Current Transfer Logic™ ...