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NCP5424A Datasheet(PDF) 5 Page - ON Semiconductor |
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NCP5424A Datasheet(HTML) 5 Page - ON Semiconductor |
5 / 20 page NCP5424A http://onsemi.com 5 ELECTRICAL CHARACTERISTICS (continued) (0 °C < TA < 70°C; 0°C < TJ < 125°C; ROSC = 30.9 k, CCOMP1,2 = 0.1 µF, 10.8 V < VCC < 13.2 V; 10.8 V < BST < 20 V, CGATE(H)1,2 = CGATE(L)1,2 = 1.0 nF, VFB+2 = 1.0 V; unless otherwise specified.) Characteristic Unit Max Typ Min Test Conditions Oscillator Switching Frequency ROSC = 61.9 k; Measure GATE(H)1; Note 3 112 150 188 kHz Switching Frequency ROSC = 30.9 k; Measure GATE(H)1 250 300 350 kHz Switching Frequency ROSC = 15.1 k; Measure GATE(H)1; Note 3 450 600 750 kHz ROSC Voltage ROSC = 30.9 k, Note 3 0.970 1.000 1.030 V Phase Difference − − 180 − ° Supply Currents VCC Current COMP1,2 = 0 V (No Switching) − 13 17 mA BST Current COMP1,2 = 0 V (No Switching) − 3.5 6.0 mA Undervoltage Lockout Start Threshold GATE(H) Switching; COMP1,2 charging 7.8 8.6 9.4 V Stop Threshold GATE(H) not switching; COMP1,2 discharging 7.0 7.8 8.6 V Hysteresis Start−Stop 0.5 0.8 1.5 V Cycle−to−Cycle Current Limit OVC Comparator Offset Voltage 0 V < IS+ 1, 2 < 5.5 V, 0 V < IS− < 5.5 V 55 70 85 mV IS+ 1, 2 Bias Current 0 V < IS+ 1, 2 < 5.5 V −1.0 0.1 1.0 µA OVC Common Mode Range − 0 − 5.5 V OVC Latch COMP2 Discharge Current COMP = 1.0 V 0.3 1.2 3.5 mA Discharge Threshold − 0.20 0.25 0.30 V IS− Bias Current 0 V < IS− < 5.5 V −2.0 0.2 2.0 µA OVC Latch COMP1 Discharge Current COMP1 = 1.0 V 2.0 5.0 8.0 µA 3. Guaranteed by design, not 100% tested in production. |
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