FAN7544 Fairchild Semiconductor, FAN7544 Datasheet
FAN7544
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FAN7544 Summary of contents
Page 1
... Fairchild Semiconductor Corporation Descriptions The FAN7544 provides simple and high performance elec- tronic ballast control functions. The FAN7544 is optimized for electronic ballast requiring a minimum board area, by reducing component counts and lowering power dissipation. The features include programmable preheating time and fre- quency and programmable run frequency ...
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... FAN7544 Pin Assignments Pin Definitions Pin Number Pin Name 1 RPH CPH 5 GND 6 OUT2 7 OUT1 RPH CPH 4 YWW : Work Week Code Pin Function Description Preheat frequency set resistor Oscillator frequency set capacitor Oscillator frequency set resistor ...
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... Parameter Temperature Stability for Operating Frequency (fos) Symbol Iclamp V IN Topr Tstg 8-DIP Pd 8-SOP 8-DIP Rθja 8-SOP Symbol ∆fos(Typ) FAN7544 Value Unit 30 V ±600 mA ± °C -25 to 125 °C -65 to 150 0.8 W 0.5 100 °C/W 165 Value Unit ...
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... FAN7544 Electrical Characteristics Unless otherwise specified, for typical values Vcc=15V, Ta=25°C -25°C ≤ Ta ≤ 125°C and 12.7V ≤ V temperature range with Parameter UNDER VOLTAGE LOCK OUT SECTION Start Threshold Voltage UVLO Hysteresis SUPPLY CURRENT SECTION Start Up Supply Current Operating Supply Current ...
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... Figure 2. Dynamic Operating Current -40 -40 -20 - Temperature [°C] Temperature [°C] Figure 4. Operating Current FAN7544 idcc @VCC=30V idcc @VCC=30V idcc @VCC=30V idcc @VCC=15V idcc @VCC=15V idcc @VCC=15V idcc @VCC=12.5V idcc @VCC=12.5V idcc @VCC=12. 100 100 120 120 ...
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... FAN7544 Typical Characteristics(Con’t) 120 120 110 110 100 100 Rph [kΩ] Rph [kΩ] Figure 6. Preheating Frequency, C 130 130 120 120 110 110 100 100 Rph [kΩ] Rph [kΩ] Figure 8 ...
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... IC and also charges the supply capacitor. If the size increased, the also increased. Under Voltage Lock Out(UVLO) UVLO mode of the FAN7544 is designed to maintain an ultra low supply current of less than 140uA, and to guarantee that the IC is fully functional before two out- put drivers are activated. ...
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... Protection Mode If the voltage at the RPH pin decreases below 2V during the run mode, the FAN7544 enters the protection mode and all gate drive outputs(OUT1 & OUT2) are latched off in the low state and the VCPH is decreased to 0V. To exit the protection mode, the Vcc must go down below the UVLO low threshold ...
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... C102 R204, 2 L200 R205 1 5 C200//C201 D201 ZD53 DC_400V R200, R201 2 D200 R60 R202 R100, C203 R101 2 D100 R102 C57 C103 R103 Open Lamp 2 Detection Circuit FAN7544 DC_400V R11 1 R106 D101 R206 C58 R59 C56 Q51 2 Ignition Fail Detection Circuit 9 ...
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... FAN7544 Components List (for Wide-Range 32W× 2Lamps Application) Part number INPUT PART F1 CX1 CX2 CY1, CY2 TNR NTC D10, D11, D12, D13 PFC PART R1, R2 R10 R11 R12 R13 R14 VR1 D1 ...
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... Zener Diode Note Manufacturer Ceriamic, 1206 Ceriamic, 1206 Ceriamic, 1206 Electrolytic Ceriamic, 0805 Ceramic, 1206 Miller-Cap Ceramic, 0805 Ceramic, 0805 Ceramic, 0805 Miller-Cap Miller-Cap EE2820 EE1614 C53: 0Ω, ZD51 : Open KST2222A Fairchild Fairchild FDLL4148 Fairchild 1N4744A Fairchild MMSZ5245B Fairchild FAN7544 - - - - - - - - - - - - - 11 ...
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... FAN7544 Mechanical Dimensions Package 12 Dimensions in millimeters/inches 8-SOP-225 ...
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... Mechanical Dimensions Package (Continued) 8-DIP-300 Dimensions in millimeters/inches FAN7544 13 ...
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... Package FAN7544N 8DIP FAN7544M 8SOP FAN7544MX 8SOP DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS ...