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NCV8842 Datasheet(PDF) 4 Page - ON Semiconductor |
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NCV8842 Datasheet(HTML) 4 Page - ON Semiconductor |
4 / 16 page NCV8842 http://onsemi.com 4 ELECTRICAL CHARACTERISTICS (−40°C < TJ < 150°C, 4.5 V< VIN < 40 V; unless otherwise specified.) Characteristic Test Conditions Min Typ Max Unit Oscillator Operating Frequency − 153 170 187 kHz Frequency Line Regulation − − 0.05 0.15 %/V Maximum Duty Cycle − 85 90 95 % VFB Frequency Foldback Threshold − 0.29 0.32 0.36 V PWM Comparator Slope Compensation Voltage Fix VFB, DVC/DTON 5.0 9.0 17 mV/ms Minimum Output Pulse Width VFB to VSW − 100 200 ns Power Switch Current Limit VFB > 0.36 V 1.6 2.3 3.0 A Foldback Current VFB < 0.29 V 0.9 1.5 2.1 A Saturation Voltage IOUT = 1.5 A, VBOOST = VIN + 2.5 V 0.4 0.7 1.0 V Current Limit Delay (Note 5) − 120 160 ns Error Amplifier Internal Reference Voltage − 1.244 1.270 1.296 V Reference PSRR (Note 5) − 40 − dB FB Input Bias Current − − 0.02 0.1 mA Output Source Current VC = 1.270 V, VFB = 1.0 V 15 25 35 mA Output Sink Current VC = 1.270 V, VFB = 2.0 V 15 25 35 mA Output High Voltage VFB = 1.0 V 1.39 1.46 1.53 V Output Low Voltage VFB = 2.0 V 5.0 20 60 mV Unity Gain Bandwidth (Note 5) − 500 − kHz Open Loop Amplifier Gain (Note 5) − 70 − dB Amplifier Transconductance (Note 5) − 6.4 − mA/V Sync Sync Frequency Range − 190 − 355 kHz Sync Pin Bias Current VSYNC = 5.0 V − 360 485 mA Sync Threshold Voltage − 0.9 1.5 1.9 V Shutdown Shutdown Threshold Voltage − 1.0 1.3 1.6 V SHDNB Input Current Vin = 5.0 V, (Note 5) − 4.0 − mA Thermal Shutdown Overtemperature Trip Point (Note 5) 175 185 195 °C Thermal Shutdown Hysteresis (Note 5) − 42 − °C 5. Guaranteed by design, not 100% tested in production. |
Similar Part No. - NCV8842_11 |
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Similar Description - NCV8842_11 |
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