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FAN5099 데이터시트(PDF) 5 Page - Fairchild Semiconductor |
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FAN5099 데이터시트(HTML) 5 Page - Fairchild Semiconductor |
5 / 24 page © 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN5099 Rev. 1.1.5 5 Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings. Electrical Characteristics Unless otherwise noted, VCC = 5V, TA = 25°C, using the circuit in Figure 1. The ‘•’ denotes that the specifications apply to the full ambient operating temperature range.(2,3) Continued on the following page... Symbols Parameter Conditions Min. Typ. Max. Unit VCC Supply Voltage VCC to GND 4.5 5.0 5.5 V TA Ambient Temperature Commercial -10 +85 °C Industrial -40 +85 °C TJ Junction Temperature +125 °C Symbol Parameter Conditions Min. Typ. Max. Unit Supply Current IVCC VCC Current (Quiescent) HDRV, LDRV Open • 2.6 3.2 3.8 mA IVCC(SD) VCC Current (Shutdown) EN = 0V, VCC = 5.5V • 200 400 μA IVCC(OP) VCC Current (Operating) EN = 5V, VCC = 5.0V, QFET = 20nC, fSW = 200kHz 10 15 mA VSHUNT VCC Voltage (4) Sinking 1mA to 100mA at VCC Pin 5.4 5.9 V Under-Voltage Lockout (UVLO) UVLO(H) Rising VCC UVLO Threshold • 4.00 4.25 4.50 V UVLO(L) Falling VCC UVLO Threshold • 3.60 3.75 4.00 V VCC UVLO Threshold Hysteresis 0.5 V Soft-Start ISS Current 10 μA VLDOSTART LDO Start Threshold 2.2 V VSSOK PWM Protection Enable Threshold 1.2 V Oscillator fOSC Frequency R(T) = 25.5K Ω ± 1% 240 300 360 kHz R(T) = 199K Ω ± 1% 60 80 100 kHz R(T) = Open 50 kHz Operating Frequency Range 40 600 kHz ΔV RAMP Ramp Amplitude (Peak-to-Peak) R(RAMP) = 330K Ω 0.4 V Minimum On Time f = 200kHz 200 ns Reference VREF Reference Voltage (Measured at FB Pin) TA = 0°C to 70°C • 790 800 810 mV TA = -40°C to 85°C • 788 800 812 mV Current Amplifier Reference (at SW node) 160 mV |
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