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CS5156GDR16 데이터시트(PDF) 3 Page - ON Semiconductor |
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3 / 17 page CS5156 http://onsemi.com 3 ELECTRICAL CHARACTERISTICS (0°C < TA < +70°C; 0°C < TJ < +85°C; 8.0 V < VCC1 < 14 V; 5.0 V < VCC2 < 14 V; DAC Code: VID4 = VID2 = VID1 = VID0 = 1; VID3 = 0; CVGATE = 1.0 nF; COFF = 330 pF; CSS = 0.1 μF, unless otherwise specified.) Characteristic Test Conditions Min Typ Max Unit Error Amplifier VFB Bias Current VFB = 0 V − 0.3 1.0 μA Open Loop Gain 1.25 V < VCOMP < 4.0 V; Note 3 50 60 − dB Unity Gain Bandwidth Note 3 500 3000 − kHz COMP SINK Current VCOMP = 1.5 V; VFB = 3.0 V; VSS > 2.0 V 0.4 2.5 8.0 mA COMP SOURCE Current VCOMP = 1.2 V; VFB = 2.7 V; VSS = 5.0 V 30 50 70 μA COMP CLAMP Current VCOMP = 0 V; VFB = 2.7 V 0.4 1.0 1.6 mA COMP High Voltage VFB = 2.7 V; VSS = 5.0 V 4.0 4.3 5.0 V COMP Low Voltage VFB = 3.0 V − 160 600 mV PSRR 8.0 V < VCC1 < 14 V @ 1.0 kHz; Note 3 60 85 − dB VCC1 Monitor Start Threshold Output switching 3.75 3.90 4.05 V Stop Threshold Output not switching 3.70 3.85 4.00 V Hysteresis Start−Stop − 50 − mV VGATE Out SOURCE Sat at 100 mA Measure VCC2 − VGATE − 1.2 2.0 V Out SINK Sat at 100 mA Measure VGATE − VPGND − 1.0 1.5 V Out Rise Time 1.0 V < VGATE < 9.0 V; VCC1 = VCC2 = 12 V − 30 50 ns Out Fall Time 9.0 V > VGATE > 1.0 V; VCC1 = VCC2 = 12 V − 30 50 ns Shoot−Through Current Note 3 − − 50 mA VGATE Resistance Resistor to LGND. 20 50 100 kΩ VGATE Schottky LGND to VGATE @ 10 mA − 600 800 mV Soft Start (SS) Charge Time − 1.6 3.3 5.0 ms Pulse Period − 25 100 200 ms Duty Cycle (Charge Time /Pulse Period) × 100 1.0 3.3 6.0 % COMP Clamp Voltage VFB = 0 V; VSS = 0 0.50 0.95 1.10 V VFFB SS Fault Disable VGATE = Low 0.9 1.0 1.1 V High Threshold − − 2.5 3.0 V PWM Comparator Transient Response VFFB = 0 to 5.0 V to VGATE = 9.0 V to 1.0 V; VCC1 = VCC2 = 12 V − 100 125 ns VFFB Bias Current VFFB = 0 V − 0.3 − μA 3. Guaranteed by design, not 100% tested in production. |
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