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NCP1575DR2G Datasheet(PDF) 5 Page - ON Semiconductor |
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NCP1575DR2G Datasheet(HTML) 5 Page - ON Semiconductor |
5 / 16 page NCP1575 http://onsemi.com 5 ELECTRICAL CHARACTERISTICS (0 °C < TJ < 125°C, 9.0 V < VCC < 20 V, CGATE(H) = CGATE(L) = 3.3 nF, CCOMP = 0.1 mF, ROSC = 74 kW; unless otherwise specified.) Note 3 Characteristic Test Conditions Min Typ Max Unit GATE(H) and GATE(L) Rise Time 1.0 V < GATE(L), GATE(H) < VCC − 2.0 V, VCC = 12 V − 40 80 ns Fall Time VCC − 2.0 V < GATE(L), GATE(H) < 1.0 V, VCC = 12 V − 40 80 ns GATE(H) to GATE(L) Delay GATE(H) < 2.0 V, GATE(L) > 2.0 V 40 60 105 ns GATE(L) to GATE(H) Delay GATE(L) < 2.0 V, GATE(H) > 2.0 V 40 60 105 ns Minimum Pulse Width GATE(X) = 4.0 V − 250 − ns High Voltage (AC) Measure GATE(L) or GATE(H) 0.5 nF < CGATE(H) = CGATE(L) < 10 nF, Note 4 VCC − 0.5 VCC − V Low Voltage (AC) Measure GATE(L) or GATE(H) 0.5 nF < CGATE(H) = CGATE(L) < 10 nF, Note 4 − 0 0.5 V GATE(H)/(L) Pull−Down Resistance to GND. Note 4 20 50 115 k W PWM Comparator PWM Comparator Offset VFB = 0 V, Increase COMP Until GATE(H) Starts Switching 0.415 0.465 0.525 V Ramp Max Duty Cycle − − 80 − % Artificial Ramp Duty Cycle = 50%, ROSC = 74 kW 50 63 75 mV Transient Response COMP = 1.5 V, VFB 20 mV Overdrive. Note 4 − 200 300 ns VFB Input Range Note 4 0 − 1.4 V Oscillator Switching Frequency ROSC Not Used ROSC = 74 kW 170 240 200 280 230 320 kHz kHz General Electrical Specifications VCC Supply Current COMP = 0 V (No Switching) − 9.0 12 mA Start Threshold GATE(H) Switching, COMP Charging 8.0 8.5 9.0 V Stop Threshold GATE(H) Not Switching, COMP Discharging 7.0 7.5 8.0 V Hysteresis Start − Stop 0.75 1.0 1.25 V 3. Characteristics at temperature extremes are guaranteed via correlation using quality statistical control methods. 4. Guaranteed by design. Not tested in production. |
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