NCP1573D ONSEMI [ON Semiconductor], NCP1573D Datasheet
NCP1573D
Related parts for NCP1573D
NCP1573D Summary of contents
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... CASE 751 PIN CONNECTIONS AND MARKING DIAGRAM PWRGD PGDELAY COMP A = Assembly Location L = Wafer Lot Y = Year W = Work Week ORDERING INFORMATION Device Package NCP1573D SO−8 NCP1573DR2 SO− GND V FB GATE(L) GATE(H) Shipping 98 Units/Rail 2500 Tape & Reel Publication Order Number NCP1573/D ...
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V PWRGD V LOGIC 0.47 μ PWRGD NCP1573 PGDELAY GATE(L) COMP GATE(H) C12 0.01 μF C13 0.1 μF MAXIMUM RATINGS* Operating Junction Temperature Storage Temperature Range ESD Susceptibility (Human Body Model) ...
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ELECTRICAL CHARACTERISTICS C = 0.01 μ 0.1 μF; unless otherwise specified.) PGDELAY COMP Characteristic Error Amplifier V Bias Current FB COMP Source Current COMP Sink Current Reference Voltage COMP Max Voltage COMP Min Voltage Open Loop Gain Unity ...
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ELECTRICAL CHARACTERISTICS (continued 0.01 μ 0.1 μF; unless otherwise specified.) PGDELAY COMP Characteristic PWM Comparator PWM Comparator Offset Ramp Max Duty Cycle Artificial Ramp Transient Response V Input Range FB Oscillator Switching Frequency General Electrical Specifications ...
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GND Error Amp V − 0.980 V − COMP 0.525 V − + Σ Art Ramp 80%, 200 kHz PGDELAY Latch − 0.88 V/0.69 V − R Set Dominant PWM Latch PWM COMP − ...
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TYPICAL PERFORMANCE CHARACTERISTICS Temperature (°C) Figure 3. Supply Current vs. Temperature 0.984 0.983 0.982 0.981 0.980 0.979 0.978 0.977 0.976 Temperature (°C) Figure 5. Reference Voltage ...
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TYPICAL PERFORMANCE CHARACTERISTICS Source Current Temperature (°C) Figure 9. Error Amp Output Currents vs. Temperature 38 GATEH Fall Time 36 GATEH Rise Time GATEL ...
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TYPICAL PERFORMANCE CHARACTERISTICS 13.4 13.1 12.8 12.5 12.2 11.9 11 Temperature (°C) Figure 15. PGDELAY Charge Current vs. Temperature 259 257 255 253 251 Temperature (°C) Figure 17. PGDELAY Discharge Threshold Voltage ...
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THEORY OF OPERATION The NCP1573 is a simple, synchronous, fixed−frequency, low−voltage buck controller using the V provides a programmable−delay Power Good function to indicate when the output voltage is out of regulation Control Method 2 The V control ...
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This slope compensation increases the noise immunity, particularly at duty cycles above 50%. Start Up The NCP1573 features a programmable Soft Start function, which is implemented through ...
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OUT = load transient; ΔI OUT Δt = load transient duration time; ESL = Maximum allowable ESL including capacitors, circuit traces, and vias; ESR = Maximum allowable ESR including capacitors and ...
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OUT ) V OUT I RIPPLE + ( f OSC )( Peak inductor current is defined as the load current plus half of the peak current. Peak current must be ...
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I IN(AVE) + (10 A)(3 6.6 A Input capacitor RMS ripple current is then 6 3 IN(RMS 6 6 ...
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OUT )(V OUT ) I RIPPLE + (f OSC )(L)( OUT I RIPPLE I PEAK + I LOAD ) + 2 where Duty cycle. For switching power losses ...
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Providing fast turn−on and turn−off edges to the IC power is very important in minimizing glitching because there is no undervoltage lockout circuitry. For example, if the switcher were powered up and regulating, and the supply began to decrease slowly, ...
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Layout Considerations 2 1. The fast response time of V technology increases the IC’s sensitivity to noise on the V Fortunately, a simple RC filter, formed by the feedback network and a small capacitor (100 pF works well, shown below ...
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−Y− G −Z− 0.25 (0.010 trademark of Switch Power, Inc. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves ...