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FS6X1220RTYDTU Datasheet(PDF) 5 Page - Fairchild Semiconductor |
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FS6X1220RTYDTU Datasheet(HTML) 5 Page - Fairchild Semiconductor |
5 / 16 page FS6X1220R 5 Electrical Characteristics (Continued) (Ta=25 °C unless otherwise specified) Note: 1. These parameters, although guaranteed at the design, are not tested in mass production. 2. These parameter indicates inductor current. Parameter Symbol Condition Min. Typ. Max. Unit UVLO SECTION Start Threshold Voltage VSTART VFB = GND 14 15 16 V Stop Threshold Voltage VSTOP VFB = GND 8 9 10 V OSCILLATOR SECTION Initial Frequency FOSC - 270 300 330 kHz Voltage Stability FSTABLE 12V ≤ VCC ≤ 23V 0 1 3 % Temperature Stability (1) ∆FOSC -25 °C ≤ Ta ≤ 85°C0 ±5±10 % Maximum Duty Cycle DMAX -72 80 88 % Minimum Duty Cycle DMIN -- - 0 % FEEDBACK SECTION Feedback Source Current IFB VFB = GND 0.7 0.9 1.1 mA Shutdown Feedback Voltage VSD VFB ≥ 6.9V 6.9 7.5 8.1 V Shutdown Delay Current IDELAY VFB = 5V 4.0 5.0 6.0 µA LINE SENSE SECTION Line UVLO Threshold Voltage VLU - 2.4 2.55 2.7 V Sleep On/Off Threshold Voltage VSL -1.5 1.8 2.1 V CURRENT LIMIT(SELF-PROTECTION)SECTION Peak Current Limit (2) IOVER - 2.82 3.2 3.58 A PROTECTION SECTION Thermal Shutdown Temp (1) TSD - 140 160 - °C Over Voltage Protection VOVP Vcc ≥6.9V 23 25 27 V TOTAL DEVICE SECTION Start Up Current ISTART VFB = GND, VCC = 14V - 60 120 uA Sleep Mode Current ISLEEP VUVLO = 1V, VCC = 16V - 300 500 uA Operating Supply Current IOP VFB = GND, VCC = 16V -10 15 mA IOP(MIN) VFB = GND, VCC = 12V IOP(MAX) VFB = GND, VCC = 20V |
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