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FAN50FC3MPX Arkusz danych(PDF) 8 Page - Fairchild Semiconductor |
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FAN50FC3MPX Arkusz danych(HTML) 8 Page - Fairchild Semiconductor |
8 / 21 page © 2007 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN50FC3 Rev. 1.0.0 8 of 21 Electrical Characteristics (Continued) VCC = 12V, FBRTN = GND, and TA = +25°C. The • denotes specifications which apply over the full operating temperature range. Symbol Parameter Conditions Min. Typ. Max. Unit Power-Good Comparator (Continued) VCROWBAR Crowbar Trip Point Relative to Nominal DAC Output • 100 150 200 mV VCR_RST Crowbar Reset Point Relative to FBRTN • 250 300 350 mV t1CROWBAR Crowbar Delay Time 1 VID Code Change Over-Voltage to PWM Going LOW Crowbar Blanking Time • 100 250 µs t2CROWBAR Crowbar Delay Time 2 VID Code Static Over-Voltage to PWM going LOW Crowbar Blanking Time • 400 ns PWM Outputs VOL(VRTM) Output Voltage Low IPWM(SINK) = 400µA • 160 400 mV VOH(VRTM) Output Voltage High IPWM(SOURCE) = 400µA • 4 5 V VDIS Phase Disable Voltage Applicable to PWM3 pins only. Connect this pin to VCC to disable the phase. (4) • VCC -.1 V Input Supply IDC DC Supply Current EN = Logic HIGH • 8 12 mA VUVLO UVLO Threshold VCC Rising • 6.5 6.9 7.3 V VUVLO_HYS UVLO Hysteresis • 0.7 0.9 1.1 V Notes: 2. Limits at operating temperature extremes are guaranteed by design, characterization, and statistical quality control. 3. AC specifications are guaranteed by design and characterization; not production tested. 4. To operate the FAN50FC3 with fewer than three phases, PWM3 should be connected to VCC to disable this phase. See the Theory of Operation section for details. |
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