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NCP5318FTR2 Datasheet(PDF) 6 Page - ON Semiconductor |
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NCP5318FTR2 Datasheet(HTML) 6 Page - ON Semiconductor |
6 / 31 page NCP5318 http://onsemi.com 6 ELECTRICAL CHARACTERISTICS (0°C < TA < 70°C; VCC = 12 V; CGATEx = 100 pF, CCOMP = 0.01 mF, CSS = 0.1 mF, CVCC = 0.1 mF, RROSC = 95.3 kW, V(ILIM) = 1.0 V, DAC Code 010100; unless otherwise noted) Characteristic Test Conditions Min Typ Max Unit VID Inputs Input Threshold VID5, VID4, VID3, VID2, VID1, VID0 400 600 800 mV VID Pin Current VID5, VID4, VID3, VID2, VID1, VID0 = 0 V − 0.2 1.0 mA SGND Bias Current SGND < 300 mV, All DAC Codes 10 20 40 mA SGND Voltage Compliance Range − −200 − 300 mV Power Good Upper Threshold, Offset from No Load Set Point 85 97 115 mV Lower Threshold Constant PWRGDS/No Load Set Point 0.475 0.505 0.525 V/V Output Low Voltage VFFB = 1.0 V, IPWRGD = 4.0 mA − 0.18 0.40 V Delay VFFB high to PWRGD high 1.0 2.0 4.0 ms Overvoltage Protection OVP Threshold above VID − 170 215 250 mV Enable Input Start Threshold Gates switching, SS high − − 0.8 V Stop Threshold Gates not switching, SS low 0.4 − − V Hysteresis − 100 170 − mV Input Pull−Up Voltage 1.0 MW to GND 2.7 2.9 3.3 V Input Pull−Up Resistance − 7.0 10 20 kW Error Amplifier VFB Bias Current − − 0.1 1.0 mA COMP Source Current COMP = 0.5 V to 2.0 V 40 70 100 mA COMP Sink Current − 40 70 100 mA Transconductance (Note 2) 1.1 1.3 1.5 mmho Open Loop DC Gain (Note 2) 72 80 − dB Unity Gain Bandwidth CCOMP = 30 pF (Note 2) − 4.0 − MHz PSRR @ 1.0 kHz (Note 2) − 60 − dB COMP Max Voltage VFB = 0 V 2.4 2.9 − V COMP Min Voltage VFB = 1.6 V − 80 150 mV PWM Comparators Minimum Pulse Width Measured from CSxP to GATEx, VFB = CSxN = 0.5, COMP = 0.5 V, 60 mV step between CSxP and CSxN; Measure at GATEx = 1.0 V (Note 2) − 40 100 ns Transient Response Time Measured from CSxN to GATEx, COMP = 2.1 V, CSxP = CSxN = 0.5 V, CSxN stepped from 1.2 V to 2.0 V (Note 2) − 40 60 ns Channel Startup Offset CSxP = CSxN = VFB = 0, Measure Vcomp when GATEx switch high 0.35 0.62 0.75 V Artificial Ramp Amplitude 50% duty cycle − 175 − mV MOSFET Driver Enable (DRVON) Output High DRVON floating 2.3 − − V Output Low I = 100 mA − − 0.2 V Pull−Down Resistance DRVON = 1.5 V, ENABLE = 0 V, R = 1.5 V/I(DRVON) 35 70 140 kW Source Current DRVON = 1.5 V 0.5 3.0 6.5 mA 2. Guaranteed by design, not tested in production. |
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