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FAN21SV04MPX 데이터시트(PDF) 5 Page - Fairchild Semiconductor |
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FAN21SV04MPX 데이터시트(HTML) 5 Page - Fairchild Semiconductor |
5 / 18 page © 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN21SV04 • Rev. 1.0.1 5 Electrical Characteristics Recommended operating conditions and using the circuit shown in Figure 1, with VIN, VIN_Reg=12V, unless otherwise noted. Parameter Conditions Min. Typ. Max. Units Power Supplies Operating Current (VIN+VIN_Reg) VIN=12V, 5V_Reg Open, CLK Open, fSW=500KHz, No Load 22 30 mA VIN_Reg Operating Current EN=High, 5V_Reg Open, CLK Open, fSW=500KHz 11 mA VIN_Reg Quiescent Current EN=High, FB=0.9V 4 5 mA VIN_Reg Standby Current EN=0, VIN=12V 1 mA 5V_Reg Output Voltage Internal VCC Regulator, No Load, 6.5V<VIN_Reg<24V 4.7 5.0 5.3 V 5V_Reg Max. Current Load VIN_Reg=12V 5 mA Rising VIN, VIN=VIN_Reg 5.6 6.3 V VIN_Reg UVLO Threshold Falling VIN, VIN=VIN_Reg 5 V Reference FAN21SV04MPX, TA=25°C 794 800 806 Reference Voltage measured at FB (See Figure 4 for Temperature Coefficient) FAN21SV04EMPX, TA=25°C 795 800 805 mV Oscillator RT=50kΩ to GND (Master Mode) 255 300 345 Frequency RT=24kΩ to GND (Master Mode) 540 600 660 KHz Frequency in Slave Mode Compared to Master Mode RT=24 kΩ to 50kΩ to 5V_Reg (Slave Mode) -15 +15 % Minimum On Time (2) 40 65 ns Duty Cycle VIN=6.5V, fSW=600KHz 80 85 % Ramp Amplitude, Peak–to-Peak (2) VIN=16V, 1.8VOUT, RT=30kΩ, RRAMP=200kΩ 0.5 V Minimum Off Time (2) 100 150 ns Synchronization CLK Output Pulse Width Master (RT to GND) 70 85 100 ns CLK Output Sink Current Master, VCLK=0.4V 0.25 0.35 mA CLK Output Source Current Master, VCLK=2V -2.5 -2.0 mA CLK Input Pulse Width Slave: VCLK > 2V 50 ns CLK Input Source Current Slave: VCLK=1V -230 -200 -170 µA CLK Input Threshold, Rising Slave 1.73 1.83 1.93 V Soft-Start VOUT to Regulation (T0.8) 2.5 ms Fault Enable/SSOK (T1.0) Frequency=500KHz 3.1 ms Error Amplifier DC Gain (2) 80 85 dB Gain Bandwidth Product (2) 12 15 MHz Output Voltage Swing (VCOMP) VIN_Reg > 6.5V 0.4 4.0 V Output Current, Sourcing 5V_Reg=5V, VCOMP=2.2V 1.5 2.2 2.5 mA Output Current, Sinking 5V_Reg=5V, VCOMP=1.2V 0.8 1.2 1.5 mA FB Bias Current VFB=0.8V, TA=25°C -850 -650 -450 nA Note: 2. Specifications guaranteed by design and characterization; not production tested. |
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