NCP1653A ON Semiconductor, NCP1653A Datasheet
NCP1653A
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NCP1653A Summary of contents
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... Average Current−Mode or Peak Current−Mode Operation • Constant Output Voltage or Follower Boost Operation • Very Few External Components • Fixed Switching Frequency: 67 kHz = NCP1653A, Fixed Switching Frequency: 100 kHz = NCP1653 • Soft−Start Capability • V Undervoltage Lockout with Hysteresis (8.7 / 13. • ...
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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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... Drive Output (Pin 7) goes low when the inductor current exceeds a user−defined value. The operation resumes when the inductor current becomes lower than this value. NCP1653, NCP1653A FUNCTIONAL DESCRIPTION 5. Thermal Shutdown (TSD) is activated and the Drive Output (Pin 7) is disabled when the junction temperature exceeds 150_C ...
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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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... I becomes I . Input impedance Z L L−50 NCP1653, NCP1653A over the bandwidth and power factor is corrected. pin (Pin 5 also Practically, the differential−mode inductance in the front−ended EMI filter improves the filtering performance of capacitor C ...
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... V out + out out The output voltage V is regulated at a particular level out with a particular value of RMS input voltage V NCP1653, NCP1653A power P out depending on different values of V boost operating area is illustrated in Figure 33. V out 96 ref V in ...
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... In normal situation of boost converter configuration, the output voltage V greater than the input voltage V and the feedback current in NCP1653, NCP1653A in (eq. always greater than 8% and 12% of the nominal level M FB ...
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... V. It makes indirectly and V control pulled to be its maximum. It generates the minimum duty ratio or no duty ratio eventually so that the input power is NCP1653, NCP1653A limited. The OPL is automatically deactivated when the product (I = √ and 3 nA ...
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... Figure 41 are just for reference. Input 180k 180k 180k 1.5M 100uF NCP1653 BC556 560k Figure 41. Recommended Startup Biasing Scheme NCP1653, NCP1653A V V Undervoltage Lockout (UVLO) out CC The device typically starts to operate when the supply voltage V CC voltage V goes below 8 internal ESD Zener ...
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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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... V out(OVP) + 107 out(nom) Output Overvoltage V out(UVP * on out(nom) Output Undervoltage V out(UVP * off out(nom) Input Voltage Sense Pin R vac u 938 kW and R vac + Resistor R vac V ref + 2.62 V PWM Comparator Reference Voltage NCP1653, NCP1653A Follower Boost Mode ...
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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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... Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: orderlit@onsemi.com NCP1653, NCP1653A PACKAGE DIMENSIONS SO−8 D SUFFIX CASE 751−07 ...