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NCP5424D Datasheet(PDF) 4 Page - ON Semiconductor |
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NCP5424D Datasheet(HTML) 4 Page - ON Semiconductor |
4 / 20 page NCP5424 http://onsemi.com 4 ELECTRICAL CHARACTERISTICS (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 Test Conditions Min Typ Max Unit Error Amplifier VFB Bias Current VFBX = 0 V - 0.5 1.6 µA VFB1(2) Input Range Note 2 0 - 1.1 V COMP1,2 Source Current COMP1,2 = 1.2 V to 2.5 V; VFB1(- 2) = 0.8 V 15 30 60 µA COMP1,2 Sink Current COMP1,2 = 1.2 V; VFB1(- 2) = 1.2 V 15 30 60 µA Reference Voltage 1(2) COMP1 = VFB1; COMP2 = VFB- 2 0.980 1.000 1.020 V COMP1,2 Max Voltage VFB1(- 2) = 0.8 V 3.0 3.3 - V COMP1,2 Min Voltage VFB1(- 2) = 1.2 V - 0.25 0.35 V Open Loop Gain - - 95 - dB Unity Gain Band Width - - 40 - kHz PSRR @ 1.0 kHz - - 70 - dB Transconductance - - 32 - mmho Output Impedance - - 2.5 - M Ω Input Offset, Error Amp. 2 - -3.0 0 3.0 mV Error Amp. 2 Common Mode Range Note 2 1.75 2.0 - V GATE(H) and GATE(L) High Voltage (AC) Measure: VCC - GATE(L)1,2; BST - GATE(H)1,2; Note 2 - 0 0.5 V Low Voltage (AC) Measure:GATE(L)1,2 or GATE(H)1,2; Note 2 - 0 0.5 V Rise Time 1.0 V < GATE(L)1,2 < VCC - 1.0 V 1.0 V < GATE(H)1,2 < BST - 1.0 V, BST ≤ 14 V - 20 50 ns Fall Time VCC - 1.0 > GATE(L)1,2 > 1.0 V BST - 1.0 > GATE(H)1,2 > 1.0 V, BST ≤ 14 V - 15 50 ns GATE(H) to GATE(L) Delay GATE(H)1,2 < 2.0 V, GATE(L)1,2 > 2.0 V BST ≤ 14 V 20 40 70 ns GATE(L) to GATE(H) Delay GATE(L)1,2 < 2.0 V, GATE(H)1,2 > 2.0 V; BST ≤ 14 V 20 40 70 ns GATE(H)1(2) and GATE(L)1(2) pull-down. Resistance to GND Note 2 50 125 280 k Ω PWM Comparator PWM Comparator Offset VFB1(- 2) = 0 V; Increase COMP1,2 until GATE(H)1,2 starts switching 0.30 0.40 0.50 V Artificial Ramp Duty cycle = 50%, Note 2 60 105 150 mV Minimum Pulse Width Note 2 - - 300 ns 2. Guaranteed by design, not 100% tested in production. |
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