NCP1201 ON Semiconductor, NCP1201 Datasheet
NCP1201
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NCP1201 Summary of contents
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... Off−Line Supplies Featuring Low Standby Power with Fault Protection Modes Housed in SOIC−8 or PDIP−8 package, the NCP1201 enhances the previous NCP1200 series by offering a reduced optocoupler current with additional Brownout Detection Protection (BOK). Similarly, the circuit allows the implementation of complete off−line AC−DC adapters, battery chargers or Switchmode Power Supplies (SMPS) where standby power is a key parameter ...
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... V L2 470 mH 0 Please refer to the application information section. NCP1201 C3 470 p 250 195 NCP1201 R2 4.3 k Figure 1. Typical Application Example http://onsemi.com 2 R3 100 k T1 1.0 W 6.5 V, 600 1N5819 1 1N4937 + MTD1N60E C7 1 ...
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... V 3 − 250 ns L.E.B. 4 GND ref − Figure 2. Simplified Functional Block Diagram NCP1201 10.5 V/12.5 V Oscillator 60 or 100 kHz Clock Maximum 83% Duty Cycle Skip Cycle Comparator 1.07 V Set + + Output − − Reset 24 K TSD + − Startup Output Blanking 0 ...
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... Human Body Model (HBM) > 2.0 kV per JEDEC standard: JESD22−A114. Machine Model (MM) > 200 V per JEDEC standard: JESD22−A115. 2. Latchup Current Maximum Rating: ±150 mA per JEDEC standard: JESD78. NCP1201 Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Function Á ...
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... THERMAL SHUTDOWN Thermal Shutdown Trip Point, Temperature Rising (Note 3) Thermal Shutdown Hysteresis 3. Verified by design. NCP1201 = 25°C, for min/max values T J NCP1201P60, NCP1201D60 NCP1201P100, NCP1201D100 NCP1201P60, NCP1201D60 NCP1201P100, NCP1201D100 NCP1201P60, NCP1201D60 NCP1201P100, NCP1201D100 > http://onsemi.com 5 = −25°C to +125°C, J Symbol Min ...
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... T , JUNCTION TEMPERATURE (°C) J Figure 5. IC Current Consumption, I vs. Junction Temperature 700 600 500 400 300 − JUNCTION TEMPERATURE (°C) J Figure 7. IC Current Consumption at Latchoff Phase vs. Junction Temperature NCP1201 TYPICAL CHARACTERISTICS 10.8 10.6 10.4 10.2 10 9.8 75 100 125 −25 0 Figure 4. V 2.6 2.4 2.2 2.0 1.8 1.6 1.4 75 100 125 − ...
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... J Figure 11. Output Source Resistance vs. Junction Temperature − JUNCTION TEMPERATURE (°C) J Figure 13. CS Pin Input Bias Current @ 1.0 V vs. Junction Temperature NCP1201 TYPICAL CHARACTERISTICS 100 125 −25 0 Figure 10. Leakage Current vs 100 125 − ...
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... KHz 800 600 60 KHz 400 200 0 − JUNCTION TEMPERATURE (°C) J Figure 19. Frequency Jittering vs. Junction Temperature NCP1201 TYPICAL CHARACTERISTICS 100 100 125 −25 0 Figure 16. Propagation Delay from Current Detection to Gate Driver vs. Junction Temperature 120 100 ...
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... T , JUNCTION TEMPERATURE (°C) J Figure 23. BOK Threshold Voltage vs. Junction Temperature − JUNCTION TEMPERATURE (°C) J Figure 25. BOK Source Bias Current vs. Junction Temperature NCP1201 TYPICAL CHARACTERISTICS 3.40 3.35 3.30 3.25 3.20 3.15 3.10 3.05 3.00 −25 0 100 125 Figure 22. Feedback Pin to Pin 3 Current Setpoint Ratio ...
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... UC384X based supplies: timing components, feedback devices, low−pass filter and self−supply. This later point emphasizes the fact that ON Semiconductor’s NCP1201 does NOT need an auxiliary winding to operate: the device is self supplied from the high−voltage rail and delivers the IC ...
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... When the IC enters the skip cycle mode, the sense NCP1201 Skipping Cycle Mode The NCP1201 automatically skips switching cycles when the output power demand drops below a preset level. This is accomplished by monitoring the FB pin. In normal operation, FB pin imposes a peak current according to the load value. If the load demand decreases, the internal loop asks for less peak current. When this set− ...
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... NCP1201 Figure 30. MOSFET V at Various Power Levels, P1<P2<P3 DS Max peak current 300.0M 200.0M 100.0M 0 315.4uS 882uS Figure 31. The Skip Cycle Takes Place at Low Peak Current http://onsemi.com Skip Cycle current limit 2.585mS 1.450mS 2.017mS 12 ...
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... R Upper ) R Lower + 50 mA [1.92 V(V BULK_H * V BULK_L )] R Lower + ( BULK_H ) Assume Vdc and V BULK_H BULK_L using 4.3 kW for R then R is about 195.7 kW. Lower Upper NCP1201 V BULK R Upper as shown in Lower R Lower Figure 32. Brown−Out Protection Operation levels and the (eq. 5) (eq Vdc, by http://onsemi.com ...
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... VAC rail, the maximum rectified voltage can 350 VDC 25° for the 60 kHz version over a 1.0 nF capacitive load result, the NCP1201 will dissipate 350 735 25_C). The SOIC−8 package offers a A junction−to−ambient thermal resistance R ...
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... V to 10.5 V, otherwise the supply will not properly startup. The test consists in either simulating or measuring in the laboratory to determine time required for the system to reach the regulation at full load. Let’s assume NCP1201 crosses V ), but in presence of a broken optocoupler, i.e. feedback CC ...
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... Cbulk Figure 36. A simple resistor in series avoids any latchup in the controller NCP1201 fed by its and OFF with a peak current limited by Rsense. Unfortunately, if the quality coefficient Q of the resonating network formed by Lp and Cbulk is low (e.g. the MOSFET Rdson + Rsense are small), conditions are met to make the circuit resonate and thus negatively bias the controller ...
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... ORDERING INFORMATION Device NCP1201P60 NCP1201P60G NCP1201D60R2 NCP1201D60R2G NCP1201P100 NCP1201P100G NCP1201D100R2 NCP1201D100R2G †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. NCP1201 Package PDIP−8 PDIP−8 (Pb−Free) SOIC−8 SOIC− ...
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... H D 0.25 (0.010 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. NCP1201 PACKAGE DIMENSIONS SOIC−8 NB CASE 751−07 ISSUE 0.10 (0.004) ...
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... G H 0.13 (0.005) M The product described herein (NCP1201), may be covered by the following U.S. patents: 6,271,735, 6,362,067, 6,385,060, 6,429,709, 6,587,357. 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 ...