ncp1601a ON Semiconductor, ncp1601a Datasheet
ncp1601a
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ncp1601a Summary of contents
Page 1
... Nominal Output Level) • Programmable Overcurrent Protection • Thermal Shutdown with Hysteresis (95/140°C) • Two V Undervoltage Lockout Hysteresis Options: CC 4.75 V for NCP1601A and 1.5 V for NCP1601B • Pb−Free Packages are Available Typical Applications • Electronic Light Ballast • AC Adapters • ...
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... FB S Reference Block Internal Bias CS Current 4 Mirror Osc / Sync OSC Oscillator / Synchronization Block NCP1601A, NCP1601B Drv control Ramp GND CS Osc NCP1601X Figure 1. Typical Application Circuit L C filter reg 300 k ...
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... This pin provides an output to an external MOSFET Supply Voltage This pin is the positive supply of the device. The operating range is between 9 V and 18 V with CC UVLO start threshold 13.75 V for NCP1601A and 10.5 V for NCP1601B. MAXIMUM RATINGS Rating FB Ramp, CS, Osc Pins (Pins 1−5) control ...
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... Internal Capacitance of the Ramp Pin Ramp Pin Sink Resistance (Osc = 0 V, Ramp = 1 mA sourcing) THERMAL SHUTDOWN Thermal Shutdown Threshold (Note 4) Thermal Shutdown Hysteresis 2. Comparator lower threshold is also the synchronization threshold. 3. Guaranteed by design. NCP1601A, NCP1601B (For typical values T = 25°C. For min/max values Pin Symbol 5 ...
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... 100 nF, Ramp = 100 pF, Osc = 220 pF unless otherwise specified) control Characteristic SUPPLY SECTION Startup Threshold (UVLO) – NCP1601A Startup Threshold (UVLO) – NCP1601B Minimum Voltage for Operation After Turn−On UVLO Hysteresis – NCP1601A UVLO Hysteresis – NCP1601B Power Supply Current: ...
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... Figure 9. Regulation Block Ratio vs. Temperature 125° −40° 100 150 FEEDBACK PIN CURRENT (mA) FB Figure 11. Feedback Pin Voltage vs. Feedback Current NCP1601A, NCP1601B TYPICAL CHARACTERISTICS 1.2 1.0 0.8 0.6 0.4 0 100 125 150 160 Figure 8. Regulation Block Transfer 1.10 1.08 1.06 1.04 1.02 1.00 75 100 125 − ...
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... T , JUNCTION TEMPERATURE (°C) J Figure 17. Overcurrent Protection Level vs. Temperature NCP1601A, NCP1601B TYPICAL CHARACTERISTICS 100 125 −50 −25 Figure 14. Undervoltage Protection Ratio vs ...
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... 2 100 125 −50 −25 Figure 24. Supply Current vs. Temperature http://onsemi.com 100 , JUNCTION TEMPERATURE (°C) V for NCP1601A CC(on) V for NCP1601B CC(on) V CC(off 100 , JUNCTION TEMPERATURE (° Load CC2 Load CC1 = 220 pF OSC 0 25 ...
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... The operation resumes when the junction temperature falls down by typical 45°C. The NCP1601 is available in two versions. The NCP1601A has a typical 4.75 V undervoltage lockout (UVLO) hysteresis, while NCP1601B has a typical 1.5 V UVLO hysteresis. It allows the use of different V schemes. Operating Modes of NCP1601 The NCP1601 is a PFC driver primarily designed to operate in fixed− ...
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... NCP1601A, NCP1601B Power factor is corrected when the input impedance Z in (eq.3) are constant or slowly varying. The MOSFET on time t generated by a feedback signal V modulation circuit and timing diagram are shown in V out Figure 28. A relationship in (eq.4) is obtained. ...
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... R (10.5 kW typical) is defined in (eq.9) power and restricted to have a maximum ±10% variation (i.e., 9.5 kW ≤ R ≤ 11.5 kW) for defining the maximum power power in an application. NCP1601A, NCP1601B for CRM (eq.5b) R power + It means that the maximum input and output power in (eq.6) is obtained (P and P in in(max) P in(max) + (eq ...
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... Current Sense The device senses the inductor current I sense scheme in Figure 32. This scheme has the advantages of: (1) the inrush current limitation by the resistor R (2) the overcurrent protection and zero current detection implemented in the same pin. NCP1601A, NCP1601B control ac R condition is usually × I ...
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... The offset voltage of the CS pin I S(OCP (3.2 mV typical) in this condition. That is S(OCP S(OCP S(OCP) I L(OCP NCP1601A, NCP1601B When overcurrent protection threshold is reached, the Drive Output of the device goes low. Oscillator / Synchronization Block is needed ensure that zero That is, ...
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... V Undervoltage Lockout (UVLO) CC There are two UVLO options. The device typically starts to operate when the supply voltage V for NCP1601A and 10.5 V for NCP1601B. It turns off when the supply voltage V ESD Zener diode is connected to the V 150 200 Hence, the operating range ...
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... NCP1601AP NCP1601APG NCP1601ADR2 NCP1601ADR2G NCP1601BP NCP1601BPG NCP1601BDR2 NCP1601BDR2G †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. NCP1601A, NCP1601B 450 mH / 4.5 A KBP06 680 680 k SPP11N60S5 0.1 560 k 2.2 k NCP1601B 1 ...
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... V control P in_max + Minimum ramp capacitor P in when ramp u control Control voltage V control 2LI ctrl + C ramp NCP1601A, NCP1601B V out V in ³ V out * ton + C ramp V control ³ ...
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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. NCP1601A, NCP1601B PACKAGE DIMENSIONS SOIC−8 D SUFFIX CASE 751−07 ISSUE ...
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... 0.13 (0.005) The products described herein (NCP1601A, NCP1601B), may be covered by the following U.S. patents: 6,271,735, 6,362,067, 6,970,365. 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. 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. “ ...