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FAN9612MX Datasheet(PDF) 8 Page - Fairchild Semiconductor |
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FAN9612MX Datasheet(HTML) 8 Page - Fairchild Semiconductor |
8 / 37 page © 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN9612 • Rev. 0.9.1E 8 PRELIMINARY Electrical Characteristics (Continued) Unless otherwise noted, VDD = 12V, TJ = -40°C to +125°C. Currents are defined as positive into the device and negative out of the device. Frequency Clamp (4) (each channel) fSW,CL Maximum Switching Frequency 600 kHz Current Sense CS Input Threshold Voltage Limit 0.18 0.20 0.22 V CS Input Current VCSX = 0 V to 1 V –0.1 0.1 µA CS to Output Delay CS stepped from 0V to 5V 65 90 ns Zero Current Detection Input Voltage Threshold (4) -0.1 0.0 0.1 V Input High Clamp voltage IZCD = 0.5mA 0.2 V Input Low Clamp voltage IZCD = –0.5mA -0.2 V Source Current Capability (4) -- -- 1 mA Sink Current Capability (4) -- -- 10 mA Maximum Turn-on Delay (ZCDx to OUTx ) (4) 60 100 ns Output ISINK OUTx Current, Mid-Voltage, Sinking (4) VOUTx = VDD/2; CLOAD = 0.1µF 1.8 A ISOURCE OUTx Current, Mid-Voltage, Sourcing (4) VOUTx = VDD/2; CLOAD = 0.1µF 0.8 A tRISE Rise Time CLOAD = 1nF, 10% to 90% -- 30 50 ns tFALL Fall Time CLOAD = 1nF, 90% to 10% -- 30 50 ns Output voltage during UVLO VCC = 5V; Iout = 100µA -- -- 1 V Reverse Current Withstand 500 mA Soft Start (CSS = 0.1 µF) Maximum Soft Start Current VCOMP < 3.0 V 5 6 µA Minimum Soft Start Current VCOMP > 4.5 V 0.5 µA Brown-Out Protection (Input) Turn-On / Turn-Off Threshold 1.0 V VIN OVP Threshold 3.8 V VIN Sink Current VVIN > 1.1 V 100 nA VIN Sink Current VVIN < 0.9 V 2 µA Phase Shedding (Input) VCOMP Phase Shedding Threshold VCOMP decreasing, transition from dual to single phase 1.5 1.6 1.7 V VCOMP Phase Adding Threshold VCOMP increasing, transition from single to dual phase 1.9 2.05 2.2 V |
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