NCP1218AD65R2G ON Semiconductor, NCP1218AD65R2G Datasheet
NCP1218AD65R2G
Specifications of NCP1218AD65R2G
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NCP1218AD65R2G Summary of contents
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... Offline Battery Chargers • Consumer Electronic Appliances STB, DVD, DVDR *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. © Semiconductor Components Industries, LLC, 2009 October, 2009 − Rev. 1 http://onsemi.com SOIC− ...
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EMI AC Filter Input latch input* * Optional Figure 1. Typical Application Circuit HV Skip/latch GND DRV NCP1218 R * ramp http://onsemi.com 2 + Output Voltage − ...
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upper 42.0k* Skip/latch R lower R 51.3k* skip V FB(open) 16.7k ramp(peak ramp R V ramp GND * Typical ...
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Table 1. PIN FUNCTION DESCRIPTION Pin Name 1 Skip/Latch This pin provides a latch input to permanently disable the device under a fault condition. It also allows the user to adjust the skip threshold. A resistor between this pin and ...
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Table 2. MAXIMUM RATINGS (Notes 1 − Voltage HV Current Supply Voltage Supply Current Skip/latch Voltage Skip/latch Current FB Voltage FB Current CS Voltage CS Current DRV Voltage DRV Current Operating Junction Temperature Storage Temperature Range Power Dissipation ...
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Table 3. ELECTRICAL CHARACTERISTICS 0.1 mF, for typical values T = 25°C, for min/max values Characteristics STARTUP AND SUPPLY CIRCUITS Supply Voltage Startup Threshold Minimum Operating Voltage Undervoltage Lockout Double Hiccup Threshold Logic Reset Voltage UVLO Filter Delay ...
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Table 3. ELECTRICAL CHARACTERISTICS 0.1 mF, for typical values T = 25°C, for min/max values Characteristics GATE DRIVE Drive Resistance DRV Sink DRV Source Rise Time (10% to 90%) Fall Time (90% to 10%) LATCH INPUT Latch Voltage ...
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V 12 CC(on CC(MIN UVLO CC(reset −50 − JUNCTION TEMPERATURE (°C) J Figure 3. Supply Voltage Thresholds vs. Junction Temperature 300 280 ...
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−40° 125° 150 225 300 VOLTAGE (V) HV Figure 9. Startup Circuit Leakage ...
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T , JUNCTION TEMPERATURE (°C) J Figure 15. Oscillator Frequency vs. Junction Temperature Source − 1 ...
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T , JUNCTION TEMPERATURE (°C) J Figure 21. Adjustable Skip Threshold vs. Junction Temperature ...
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The NCP1218 is part of a product family of current mode controllers designed for ac−dc applications requiring low standby power. The controller operates in skip or burst mode at light load. Its high integration reduces component count resulting in a ...
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V CC(on) V CC(MIN) UVLO V CC(hiccup) V CC(reset) Fault2 ON DRV Figure 26. V Double Hiccup Operation with a Fault Occurring While the Startup Circuit is Enabled CC An internal supervisory circuit monitors the V to prevent the controller ...
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Soft−start voltage, V SSTART t SSTART Feedback pin voltage divided time must be less than t OVLD to prevent fault condition Pulse Width Modulation voltage, V PWM t SSTART Drain Current SSTART Figure 29. ...
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Ramp Compensation Ramp compensation is a known mean to cure subharmonic oscillations. These oscillations take place at half the switching frequency and occur only during continuous conduction mode (CCM) with a duty ratio greater than 50%. To lower the current ...
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Oscillator Frequency 11.5 ms Figure 34. Oscillator Frequency Modulation Gate Drive The output drive of the NCP1218 is designed to directly drive the gate of an n−channel power MOSFET. The DRV pin is capable of sourcing 500 mA and sinking ...
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Skip Cycle Operation During standby or light load operation the duty ratio on the controller becomes very small. At this point, a significant portion of the power dissipation is related to the power MOSFET switching on and off. To reduce ...
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V skip/latch 9.5 V (maximum pin voltage) Controller is latched V latch Skip threshold clamped to V skip(MAX) V (maximum skip threshold) skip(MAX) Adjustable V range. skip 0 V (no skip) Figure 39. NCP1218 VSkip/latch Pin Operating Regions Table 4. ...
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... Figure 42. Block Diagram of Timer−Based Fault Detection Table 5. ORDERING INFORMATION Device NCP1218AD65R2G †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. The NCP1218 also has an internal temperature shutdown hiccup circuit ...
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... SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303− ...