ncp1653 ON Semiconductor, ncp1653 Datasheet
ncp1653
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ncp1653 Summary of contents
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... Housed in a DIP−8 or SO−8 package, the circuit minimizes the number of external components and drastically simplifies the CCM PFC implementation. It also integrates high safety protection features. The NCP1653 is a driver for robust and compact PFC stages. Features • ...
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... & V Reference Block Turn Internal Bias ramp Gnd 100 kHz clock NCP1653, NCP1653A filter reg 300 96 ref ref Regulation Block ...
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... Pins 1−8: Human Body Model 2000 V per MIL−STD−883, Method 3015. Machine Model Method 190 V. This device contains Latchup protection and exceeds ±100 mA per JEDEC Standard JESD78 Guaranteed by design. NCP1653, NCP1653A Function which is proportional to the PFC circuit output voltage. FB goes above 107 OVP is activated and the Drive Output is disabled ...
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... Multiplier Current ( 10, I control control(max) Multiplier Current ( 10, I control control(max) THERMAL SHUTDOWN Thermal Shutdown Threshold (Note 2) Thermal Shutdown Hysteresis 2. Guaranteed by design. NCP1653, NCP1653A = 25°C. For min/max values Pin NCP1653 7 NCP1653A 100 mA) source = 100 mA) sink ...
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... Figure 3. Switching Frequency vs. Temperature −50 − JUNCTION TEMPERATURE (°C) J Figure 5. Gate Drive Resistance vs. Temperature NCP1653, NCP1653A = 25°C. For min/max values Pin Symbol 200 mA TYPICAL CHARACTERISTICS 100 ...
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... T = −40° 125° 100 150 FEEDBACK PIN CURRENT (mA) FB Figure 11. Feedback Pin Voltage vs. Feedback Current NCP1653, NCP1653A TYPICAL CHARACTERISTICS 100 25° 200 220 −50 −25 Figure 8. Regulation Block Ratio vs. ...
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... I vac vac 2.5 2 1 −50 − JUNCTION TEMPERATURE (°C) J Figure 17. Overpower Limitation Threshold vs. Temperature NCP1653, NCP1653A TYPICAL CHARACTERISTICS 100 125 −50 −25 Figure 14. Undervoltage Protection 210 208 206 204 202 200 ...
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... Temperature stdn stup −50 − JUNCTION TEMPERATURE (°C) J Figure 23. Supply Current in Startup and Shutdown Mode vs. Temperature NCP1653, NCP1653A TYPICAL CHARACTERISTICS 200 180 160 140 120 100 vac control control 0 75 100 125 − ...
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... A CCM PFC boost converter is shown in Figure 25. The input voltage is a rectified sinusoidal signal. The MOSFET is switching at a high frequency (typically 102 kHz in the NCP1653) so that the inductor current I basically consists of high and low−frequency components. Filter capacitor C capacitor in order to eliminate the high−frequency ...
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... The charging current I is specially designed (eq.5). The multiplier voltage V is therefore expressed in M terms (eq.6 ramp V ref NCP1653, NCP1653A ref * a low−frequency in From (eq.3) and (eq.6), the input impedance Z re−formulated in (eq.7). (eq.2) Because V is the multiplier voltage V in the I in order to have a constant Z L− ...
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... M connected to the multiplier voltage V M constant. R directly limits the maximum input power M capability and hence its value affects the NCP1653 to operate in either “follower boost mode” or “ constant output voltage mode” vac + [ ( R vac ) ...
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... R out FB 96 ref = control Figure 34. Constant Output Voltage Region (eq.15) Region (3): I When I NCP1653 provides no output or zero duty ratio. The regulation block output V and output ac http://onsemi.com 12 . However, this output level is not constant and and P . The follower ac out P out(min) ...
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... NCP1653 out in provides a duty ratio for the operation of the boost converter. In conclusion, the NCP1653 circuit operates in one of the following conditions: Constant output voltage mode: The output voltage is regulated around the range between 96% and 100 × The output voltage is described in (eq.16). Its ref behavior is similar to a follower boost ...
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... Biasing the Controller It is recommended to add a typical 100 nF decoupling capacitor next to the V When the NCP1653 operates in follower boost mode, the PFC output voltage is not always regulated at a particular level under all application range of input voltage and load power not recommended to make a low−voltage bias supply voltage by adding an auxiliary winding on the PFC boost inductor ...
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... Figure 40. Self−biasing Scheme in Constant Output Voltage Mode When the NCP1653 circuit is required to be startup independently from the second−stage converter recommended to use a circuit in Figure 41. When there mA) applied to FB pin (Pin 1), no feedback current (I FB startup current is as low (50 mA ...
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... NCP1653, NCP1653A KBU6K 100 nF 4 470 k 0.1 2.85 k 330 Output Voltage Output Current Power Factor (V) (A) 370.0 0.83 373.4 0.74 381.8 0.38 383.5 0.26 384.4 ...
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... APPENDIX I – SUMMARY OF EQUATIONS IN NCP1653 BOOST PFC Description Boost Converter V out + V in ³ V out * out Input Current Averaged by Filter Capacitor V out(nom FB1 Nominal Output Voltage ( 200 mA) Feedback Pin Voltage V Please refer to Figure 11. ...
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... F −A− NOTE 2 C −T− N SEATING PLANE 0.13 (0.005) M NCP1653, NCP1653A Package Shipping PDIP−8 50 Units / Rail PDIP−8 50 Units / Rail (Pb−Free) SO−8 2500 Units / Tape & Reel SO−8 2500 Units / Tape & Reel (Pb−Free) PDIP−8 50 Units / Rail PDIP− ...
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... ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. The product described herein (NCP1653) may be covered by one or more of the following U.S. patents: 6,362,067. There may be other patents pending. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein ...