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NCP1602AEASNT1G Datasheet(PDF) 1 Page - ON Semiconductor |
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NCP1602AEASNT1G Datasheet(HTML) 1 Page - ON Semiconductor |
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1 / 24 page  © Semiconductor Components Industries, LLC, 2016 June, 2016 − Rev. 2 1 Publication Order Number: NCP1602/D NCP1602 Enhanced, High-Efficiency Power Factor Controller The 6−pin PFC controller NCP1602 is designed to drive PFC boost stages. It is based on an innovative Valley Synchronized Frequency Fold−back (VSFF) method. In this mode, the circuit classically operates in Critical conduction Mode (CrM) when Vcontrol voltage exceeds a programmable value Vctrl,FF. When Vcontrol is below this preset level Vctrl,FF, the NCP1602 (versions [B**] and [D**]) linearly decays the frequency down to about 30 kHz until Vcontrol reaches the SKIP mode threshold. VSFF maximizes the efficiency at both nominal and light load. In particular, the stand−by losses are reduced to a minimum. Like in FCCrM controllers, internal circuitry allows near−unity power factor even when the switching frequency is reduced. Housed in a TSOP6 package, the circuit also incorporates the features necessary for robust and compact PFC stages, with few external components. General Features • Near−Unity Power Factor • Two−Level Boost Follower Line Level Dependent (disabled by default) • Critical Conduction Mode (CrM) • Valley Synchronized Frequency Fold−back (VSFF): Low Frequency Operation is Forced at Low Current Levels • Works With or Without a Transformer w/ ZCD Winding (simple inductor) • On−time Modulation to Maintain a Proper Current Shaping in VSFF Mode • Skip Mode at Very Low Load Current (versions[ B**] and [D**]) • Fast Line / Load Transient Compensation (Dynamic Response Enhancer) • Valley Turn−on • High Drive Capability: −500 mA / +800 mA • VCC Range: from 9.5 V to 30 V • Low Start−up Consumption for: [**C] & [**D] Versions: Low Vcc Start−up level (10.5 V) [**A] & [**B] Versions: High Vcc Start−up level (17.0 V) • Line Range Detection for Reduced Crossover Frequency Spread • This is a Pb−Free Device Safety Features • Thermal Shutdown • Non−latching, Over−Voltage Protection • Second Over−Voltage Protection • Brown−Out Detection • Soft−Start for Smooth Start−up Operation ([**C] & [**D] Versions) • Over Current Limitation • Disable Protection if the Feedback Pin is Not Connected • Low Duty−Cycle Operation if the Bypass Diode is Shorted • Open Ground Pin Fault Monitoring Typical Applications • PC Power Supplies • Lighting Ballasts (LED, Fluorescent) • Flat TV • All Off Line Appliances Requiring Power Factor Correction PIN CONNECTIONS 1 3 DRV VCTRL 2 CS / ZCD 4 FB 6 (Top View) 5 VCC TSOP−6 SN SUFFIX CASE 318G MARKING DIAGRAM GND www.onsemi.com (Note: Microdot may be in either location) 1 AEA AYW G G 1 AEA = Specific Device Code A = Assembly Location Y = Year W = Work Week G = Pb−Free Package See detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet. ORDERING INFORMATION |
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