NCV5171EDR2G ON Semiconductor, NCV5171EDR2G Datasheet
NCV5171EDR2G
Specifications of NCV5171EDR2G
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NCV5171EDR2G Summary of contents
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... Wafer Lot Y = Year W = Work Week G = Pb−Free Package ORDERING INFORMATION Device Package NCV5171EDR2G SOIC−8 (Pb−Free) NCV5173EDR2G SOIC−8 (Pb−Free) †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. ...
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MAXIMUM RATINGS Junction Temperature Range Storage Temperature Range, T STORAGE Package Thermal Resistance, Junction−to−Case, R Junction−to−Ambient, R Lead Temperature Soldering: Reflow (Note 1) ESD, Human Body Model Stresses exceeding ...
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ELECTRICAL CHARACTERISTICS Characteristic Positive and Negative Error Amplifiers FB Reference Voltage FB Input Current FB Reference Voltage Line Regulation Positive Error Amp Transconductance Positive Error Amp Gain V Source Current C V Sink Current C V High Clamp Voltage C ...
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ELECTRICAL CHARACTERISTICS Characteristic Power Switch Switch Saturation Voltage Switch Current Limit Minimum Pulse Width DI / DIV CC SW Switch Leakage General Operating Current Shutdown Mode Current Minimum Operation Input Voltage Thermal Shutdown Thermal Hysteresis 3. Guaranteed by design, not ...
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V CC Shutdown 2.0 V Regulator Delay Timer Sync SS 0.4 V Detector FB − + Positive Error Amp 1.276 V AGND Thermal Shutdown S PWM Oscillator Q Latch R Frequency Shift 5:1 Slope Compensation PWM Compar- ator + − ...
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TYPICAL PERFORMANCE CHARACTERISTICS 7.2 7.0 6.8 6.6 6.4 6.2 6.0 5.8 5 Temperature (°C) Figure 3. I (No Switching) vs. Temperature CC 1200 1000 800 600 400 200 0 500 I (mA) SW Figure 5. V vs. I ...
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TYPICAL PERFORMANCE CHARACTERISTICS 1.280 1.278 1.276 1.274 1.272 1.270 1.268 0 50 Temperature (°C) Figure 10. Reference Voltage vs. Temperature 2.60 2.50 2.40 2. 2.20 0 Temperature (°C) ...
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TYPICAL PERFORMANCE CHARACTERISTICS 160 140 120 100 Temperature (°C) Figure 16. Shutdown Delay vs. Temperature (V) IN Figure 18. I vs. V During Shutdown CC IN 100 60 ...
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THEORY OF OPERATION Current Mode Control Oscillator S Q − Power Switch PWM Comparator In Out Driver X5 SUMMER 63 mW Slope Compensation Figure 22. Current Mode Control Scheme The NCV5171/73 boost regulator incorporates a current ...
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Switch Driver and Power Switch The switch driver receives a control signal from the logic section to drive the output power switch. The switch is grounded through emitter resistors (63 mW total) to the PGND pin. PGND is not connected ...
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The first zero generated by C1 and R1 is 2pC1R1 The phase lead provided by this zero ensures that the loop has at least a 45° phase margin at the crossover frequency. Therefore, this zero should ...
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Figure 28. Boost Input Voltage and Current Ripple Waveforms − R ESR Figure 29. Boost Circuit Effective Input Filter The situation is different in a flyback circuit. The input current is discontinuous and ...
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Reducing the Current Limit In some applications, the designer may prefer a lower limit on the switch current than 1 external shunt can be connected between the V pin and ground to reduce its C clamp voltage. Consequently, ...
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Subharmonic Oscillation Subharmonic oscillation (SHM problem found in current−mode control systems, where instability results when duty cycle exceeds 50%. SHM only occurs in switching regulators with a continuous inductor current. This instability is not harmful to the converter ...
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This circuit, shown in Figure 34, requires a minimum number of components and allows the Soft−Start circuitry to activate any time the SS pin is used to restart the converter ...
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)( where FET junction temperature (°C ambient temperature (°C power dissipated by part in question (W junction−to−ambient thermal ...
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GND 0.1 mF 200 pF 5.0 k Additional Application Diagram, Figure 35 1 GND PGND (7) AGND ( 4.7 nF 2.0 k Figure 36. Additional ...
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GND 200 pF .01 mF 5.0 k Figure 38. Additional Application Diagram, 2 Input, 5.0 V Output SEPIC Converter R1 R2 1.245 k/0 99.755 k/0 GND 1 V ...
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... *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. 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. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “ ...