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NCP12600AAASN100T1G Datasheet(PDF) 5 Page - ON Semiconductor |
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NCP12600AAASN100T1G Datasheet(HTML) 5 Page - ON Semiconductor |
5 / 24 page NCP12600 www.onsemi.com 5 Table 3. ELECTRICAL CHARACTERISTICS (For typical values TJ = 25°C, for min/max values TJ = −40°C to +125°C, Max TJ = 150°C, Vcc = 12 V unless otherwise noted) Characteristics Conditions Symbol Min Typ Max Unit SUPPLY SECTION AND VCC MANAGEMENT VCC level at which driving pulses are authorized VCC increasing VCC(on) 16 18 20 V VCC level at which driving pulses are stopped VCC decreasing VCC(min) 8.3 8.9 9.5 V Start−up hysteresis Hysteresis VCC(on) – VCC(min) VCC(hyst) 7.7 V Latched−state reset voltage – VCC(reset) 8.65 V Hysteresis above Vcc(min) for fast hiccup VCC(hiccup) 150 mV Hysteresis below VCC(min) before reset Hysteresis VCC(min) – VCC(reset) VCC(reset, hyst) 0.18 0.33 0.42 V Start−up supply current, controller disabled or latched VCC = VCC(on) – 100 mV ICC1 – 5 10 mA Internal IC consumption, steady state Fsw = 65 kHz, CDRV = 0 nF, VFB = 3.2 V Fsw = 100 kHz, CDRV = 0 nF, VFB = 3.2 V ICC2 – 1 1.1 mA Internal IC consumption, steady state Fsw = 65 kHz, CDRV = 1 nF, VFB = 3.2 V Fsw = 100 kHz, CDRV = 1 nF, VFB = 3.2 V ICC3 – 1.7 2.3 mA Internal IC consumption, skip mode – non switching Feedback voltage is below skip level ICC(no−load) 300 mA Internal IC consumption in skip mode – switching in application, for information only (Vcc = 12 V, driving a typical 7−A/650−V MOSFET, includes optocoupler current) ICC(standby) 420 mA Internal IC consumption from OVP acknowledgment to VCC(off) – Single−shot event IC detects an OVP and quickly brings VCC to VCC(off) for hiccup ICC(OVP) 1 mA CURRENT SENSE COMPARATOR Maximum Current Sense Voltage Limit – no OPP VFB = VFB(max), VCS increasing VZCD < –60 mV (Notes 4, 5) VILIM1 0.65 0.7 0.75 V Overload Current Sense Voltage Threshold – dual OCP option VFB = VFB(max), VCS increasing VILIM2 0.46 0.5 0.53 V Cycle by Cycle Leading Edge Blanking Duration tLEB1 230 280 340 ns Cycle by Cycle Current Sense Propagation Delay VCS > (VILIM+ 100 mV) to DRV turn−off tILIM – 50 100 ns Maximum Setpoint decrease for pin 3 biased to –290 mV (Note 6) VZCD = –290 mV IOPPM 32.8 % Voltage setpoint for pin 3 biased to −250 mV (Note 6) IOPPvET 0.46 0.51 0.56 V Blanking delay before considering VZCD for OPP IOPPdel 600 ns Pin 4 voltage bias for 0% OPP VZCD = −60 mV IOPP0 −60 mV Frozen CS voltage in skip mode VFB = 1 V Vfreeze 200 mV Soft start, time to meet Ip,max at start up Open feedback pin tSS 5 ms OSCILLATOR Oscillator frequency – nominal (65 kHz version) 2.4 V < VFB < 3.8 V fosc,nom 61 65 71 kHz Oscillator frequency – nominal (100 kHz version) 2.4 V < VFB < 3.8 V fosc,nom 90 100 110 kHz Oscillator frequency – minimum VFB < 1.3 V fosc,min 23 26 31 kHz Maximum duty ratio Dmax 76 % 4. OPP is not active as long as the negative voltage on the ZCD pin during ton is less than –60 mV. 5. beyond 3.8 V, the peak current is clamped to VILIM. 6. for proper linearity over negative bias voltage, we recommend keeping the level on pin 3 below –300 mV. |
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