Datenblatt-Suchmaschine für elektronische Bauteile |
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L6668 Datenblatt(PDF) 6 Page - STMicroelectronics |
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L6668 Datenblatt(HTML) 6 Page - STMicroelectronics |
6 / 23 page L6668 6/23 (1), (2) Parameters in tracking each other Figure 4. Typical System Block Diagram VSSsat Low saturation voltage Duty cycle = 0 0.6 V VSSclamp High saturation voltage 7 V SKIPADJ FUNCTION Ibias Input Bias Current VSKIP = 0 to 4.5 V -1 µA VSKIP Operating range 1.4 2.5 V Hys Hysteresis Below VSKIP 25 85 mV VOFF Shutdown threshold Voltage falling 0.8 V PFC_STOP FUNCTION Ileak High level leakage current VPFC_STOP < 16V, VCOMP = 2V 1 µA VL Low saturation level IPFC_STOP = 1mA, VCOMP = 4V 0.1 V Vth Threshold for high level VCOMP falling (2) 2.1 2.2 2.3 V Vth Threshold for high level VCOMP rising (2) 2.55 2.7 2.85 V GATE DRIVER VOL Output Low Voltage Isink = 200 mA 1.0 V VOH Output High voltage Isource = 5 mA, Vcc = 12V 9.8 10.3 V Isourcepk Peak source current -0.8 A Isinkpk Peak sink current 0.8 A tf Current Fall Time 30 ns tr Current Rise Time 55 ns VOclamp Output clamp voltage Isource = 5mA; Vcc = 20V 10 12 15 V UVLO saturation Vcc= 0 to Vccon, Isink= 2mA 1.1 V Table 5. Electrical Characteristcs (continued) (Tj = 0 to 105°C, Vcc=15V, Co=1nF; RT =13.3k , CT =1nF; unless otherwise specified) Symbol Parameter Test Condition Min. Typ. Max. Unit Vinac Voutdc L6561/2 or L6563 PWM is turned off in case of PFC's anomalous operation, for safety PFC can be turned off at light load to ease compliance with energy saving regulations. L6668 PFC PRE-REGULATOR DC-DC CONVERTER Vinac Voutdc L6561/2 or L6563 PWM is turned off in case of PFC's anomalous operation, for safety PFC can be turned off at light load to ease compliance with energy saving regulations. L6668 PFC PRE-REGULATOR DC-DC CONVERTER |
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