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NCP81250MNTXG Datasheet(PDF) 8 Page - ON Semiconductor |
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NCP81250MNTXG Datasheet(HTML) 8 Page - ON Semiconductor |
8 / 18 page NCP81250 www.onsemi.com 8 Table 3. ELECTRICAL CHARACTERISTICS (VIN = 12 V, VCC = VCCP = 5 V, VOUT = 1.0 V, typical values are referenced to TJ = 25 °C, Min and Max values are referenced to TJ from −40°C to 125°C. unless otherwise noted.) Characteristics Unit Max Typ Min Symbol Test Conditions ADC Voltage Range 0 2.0 V Total Unadjusted Error (TUE) −1 1 % Differential Nonlinearity (DNL) 8−bit 1 LSB Power Supply Sensitivity ±1 % Conversion Time 30 ms Round Robin 90 ms VR_READY (VRRDY Output) Rise Time External 1 k W pull−up to 3.3 V, CTOT = 45 pF, DVo = 10% to 90% 120 ns Fall Time External 1 k W pull−up to 3.3 V, CTOT = 45 pF, DVo = 90% to 10% 20 ns Output Voltage at Power−Up Pulled up to 5 V via 2 k W − − 1.0 V VR_READY Delay (Rising) DAC = Target to VR_READY 50 ms VR_READY Delay (Falling) From OCP or OVP 5 ms VRRDY Pin Low Voltage Voltage at VRRDY pin with 4 mA sink current VPG_L − − 0.3 V VRRDY Pin Leakage Current VRRDY = 5 V PG_LK −1.0 − 1.0 mA OVER VOLTAGE PROTECTION Absolute Over Voltage Threshold During Soft−Start 2.8 2.9 3.0 V Over Voltage Threshold Above DAC VSP rising 350 400 425 mV Over Voltage Delay VSP rising to GH low 50 ns UNDER VOLTAGE PROTECTION Under Voltage Threshold Below DAC VSP falling 250 300 350 mV Under−voltage Delay 5 ms OVER CURRENT PROTECTION ILIM Threshold Current (OCP shutdown after 50 ms delay) ILIMTH_SLOW 8.5 10.0 12.0 mA ILIM Threshold Current (immediate OCP shutdown) ILIMTH_FAST 12.0 15.0 18.0 mA IOUT OUTPUT Current Gain (IOUTCURRENT) / (ILIMCURRENT); RILIM = 20 k W; RIOUT = 5.0 kW; DAC = 0.8 V, 1.25 V, 1.52 V 9.5 10 10.5 A/A Input Referred Offset Voltage ILIM − CSREF −5.5 − 5.5 mV Output Source Current ILIM sink current = 80 mA 800 mA HIGH−SIDE MOSFET Drain−to−Source ON Resistance VGS = 4.5 V, ID = 10 A RON_H − 8.0 − m W LOW−SIDE MOSFET Drain−to−Source ON Resistance VGS = 4.5 V, ID = 10 A RON_L − 4.0 − m W 5. Guaranteed by design, not tested in production. 6. TJ = 25°C. |
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