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NCP1652 Datasheet(PDF) 3 Page - ON Semiconductor |
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NCP1652 Datasheet(HTML) 3 Page - ON Semiconductor |
3 / 34 page NCP1652, NCP1652A http://onsemi.com 3 AC COMP AC IN Startup Ispos Dual HV start−up current source VCC Management HV current VCC(off) VDD Reset Start VCCOK Reset VDD GND VCC Latch−Off S R Q tLatch(delay) blanking Reset Latch − + Vlatch(high) − + Vlatch(low) VDD Vlatch(clamp) OVP Comparator OTP Comparator Ilatch(shdn) OUTB OUTA Iavg Rdelay CM VFF FB CT Ramp Comp Oscillator DC Max Sawtooth Jitter Adj. S R Q Delay Adj. gm Reference Generator − + V−to−I + inverter − + − + 21.33kW 21.33kW tLEB Blanking tLEB Blanking V−to−I V−to−I 4V − + + VSSKIP tSSKIP Start Soft−skip Ramp Delay − + + VSSKIP(TLD) Terminate − + + VSSKIP(sync) Ramp Comp Inst. current B Inst. current B Inst. current A Jitter Ramp. Comp. Adj. Ramp Comp Clock DC Max Clock DC Max Delay Delay FB − + + VOVLD tOVLD Enable Overload Timer RFB VDD FB S R Q OVLD x 2 counter Enable Reset − + + VBO VFF BO Out VCCOK BO OVLD Latch AC error Amplifier Current sense amplifier PWM comparator PWM Skip Comparator AC In skip comparator FB skip Comparator Transient Load Detect Comparator FB overload comparator VFFBrown−Out Comparator Ilatch(clamp) Output Driver Output Driver gm + + + Figure 2. Detailed Block Diagram VFF |
Similar Part No. - NCP1652_10 |
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Similar Description - NCP1652_10 |
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