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NCV8877 Datasheet(PDF) 4 Page - ON Semiconductor |
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NCV8877 Datasheet(HTML) 4 Page - ON Semiconductor |
4 / 17 page NCV8877 www.onsemi.com 4 ELECTRICAL CHARACTERISTICS (−40 °C < TJ < 150°C, 3.6 V < VOUT < 40 V, unless otherwise specified) Min/Max values are guaranteed by test, design or statistical correlation. Characteristic Symbol Conditions Min Typ Max Unit GENERAL Quiescent Current, Sleep Mode Iq,sleep VOUT = 13.2 V, TJ = 25°C, DISB = 0 V − 12 14 mA Quiescent Current, No switching Iq,off Into VOUT pin, VOUT,reg < VOUT < VOUT,des, No switching − 2.2 4.0 mA OSCILLATOR Switching Frequency FSW 153 − 501 kHz ROSC Voltage VROSC − 1.0 − V Switching Frequency FSW ROSC = Open 153 170 187 kHz Default Switching FSW ROSC = Open ROSC = 100 k W ROSC = 20 k W ROSC = 10 k W 153 180 283 409 170 200 315 455 187 220 347 501 kHz Minimum Pulse Width ton,min NCV887700 NCV887701 NCV887711 NCV887720 NCV887721 NCV887740 90 90 89 90 90 90 115 115 115 115 115 115 145 145 146 145 145 145 ns Maximum Duty Cycle Dmax ROSC = OPEN 81 83 85 % Slope Compensating Ramp (Note 2) Sa NCV887700 NCV887701 NCV887711 NCV887720 NCV887721 NCV887740 30 46 45 46 46 46 34 53 53 53 53 53 38 60 61 60 60 60 mV/ ms DISABLE DISB Pull−down Current (Note 2) IDIS VDIS = 5 V − 0.6 1.0 mA DISB Input High Voltage Vd,ih 2.0 − 5.0 V DISB Input High Voltage Hysteresis Vd,hys − 500 − mV DISB Input Low Voltage Vd,il 0 − 800 mV CURRENT SENSE AMPLIFIER Low−Frequency Gain Acsa Input−to−output gain at dc, ISNS ≤ 1 V 0.9 1.0 1.1 V/V Bandwidth BWcsa Gain of Acsa − 3 dB 2.5 − − MHz ISNS Input Bias Current Isns,bias Out of ISNS pin − 30 50 mA Current Limit Threshold Voltage Vcl Voltage on ISNS pin NCV887700 NCV887701 NCV887711 NCV887720 NCV887721 NCV887740 360 180 180 180 180 180 400 200 200 200 200 200 440 220 220 220 220 220 mV Current Limit, Response Time (Note 2) tcl CL tripped until GDRV falling edge, VISNS = Vcl(typ) + 60 mV − 80 125 ns Overcurrent Protection, Threshold Voltage %Vocp Percent of Vcl 125 150 175 % Overcurrent Protection, Response Time (Note 2) tocp From overcurrent event, Until switching stops, VISNS = VOCP + 40 mV − 80 125 ns VOLTAGE ERROR OPERATIONAL TRANSCONDUCTANCE AMPLIFIER Transconductance gm,vea VOUT = ±100 mV 0.8 1.2 1.63 mS Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. 2. Not tested in production. Limits are guaranteed by design. |
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Similar Description - NCV8877_17 |
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