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FAN8841MPX Datasheet(PDF) 6 Page - ON Semiconductor |
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FAN8841MPX Datasheet(HTML) 6 Page - ON Semiconductor |
6 / 16 page © 2015 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN8841 • Rev. 1.0 5 Electrical Characteristics VDD=3.0 V, VDRV=60 V, and TA= -40°C to +125°C. Typical values TA=25°C, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit Power Supply Section IQ,DD Quiescent Current for VDD (5) VEN=VCOMP=VDD, VFB=1.0 V, VIN1=VIN2=0 V 800 1200 µA I Q,DRV Quiescent Current for VDRV 400 800 µA ISD,DD Shutdown Current for VDD VEN=0 V, VDD= VDRV =3 V 1 µA ISD,DRV Shutdown Current for VDRV 8 15 µA VDDSTART Start Threshold Voltage 2.6 2.7 2.8 V VDDUVHYS VDD UVLO Hysteresis Voltage 0.10 0.2 V Error Amplifier Section VFB Feedback Reference Voltage TA=25°C 0.99 1.00 1.01 V IFB FB pin Bias Current VFB=0 V ~ 2 V 1 µA V FB1 Feedback Voltage Line Regulation (6) 2.7 V < VDD < 5 V, 0.5 1.5 %/V Gm Transconductance TA=25°C 800 µmho Zero Current Detect Section VZCD Input Voltage Threshold (7) 1.65 1.83 2.00 V VCLAMPH Input High Clamp Voltage IDET=2.3 mA 3.0 3.5 4.0 V VCLAMPL Input Low Clamp Voltage IDET= -2.3 mA -0.30 0.12 0.50 V IZCD,SR Source Current Capability -2.3 mA IZCD,SK Sink Current Capability 2.3 mA tZCD,D Delay From ZCD to Output Turn-On (7) 50 200 ns Maximum On-Time Section tON,MAX Maximum On-Time 15 25 35 µs Soft-Start Timer Section tSS Internal Soft-Start 16 28 40 ms Restart / Maximum Switching Frequency Limit Section tRST Restart Timer 15 25 35 µs fMAX Maximum Switching Frequency (7) 900 1000 KHz Notes: 5. This is only the VDD current consumption with no switching condition. It does not include gate-drive current. 6. The line regulation is calculated based on OUT IN OUT V V V 1 . 7. This parameter, although guaranteed by design, is not tested in production. |
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