NCP1910B65DWR2G ON Semiconductor, NCP1910B65DWR2G Datasheet
NCP1910B65DWR2G
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NCP1910B65DWR2G Summary of contents
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NCP1910 High Performance Combo Controller for ATX Power Supplies Housed in a SO−24WB package, the NCP1910 combines a state−of−the−art circuitry aimed to powering next generation of ATX or flat TVs converters. With a 65 kHz Continuous Conduction Mode Power Factor ...
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PIN DESCRIPTION Pin N5 Pin Name The LLC feedback pin 3 PG out The open−collector power good signal 4 on/off 5 BO adj. Brown−out adjustment 6 Vref The 5 V reference pin 7 PG adj. The ...
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http://onsemi.com 3 ...
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http://onsemi.com 4 ...
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OVP2 + “1” OVP2, “0” 107% Vpref Latched adjustable OVP2 − VOVP2 “1” OVP, “0” 105% Vpref − Auto−recovery internal OVP VOVP VUVP “1” = UVP, “0” ok RFB + pull down 8% Vpref − ...
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Vrt Rt Vref Vref "1" BONOT OK BO adj + - PFC_FB "1" PGNOT adj LLC_PG Grand Reset PG out PFC_OVP2 + - VCS2 Grand Reset PFC_BO CS/ VCS1 Vdd on/off Rpull up "1" ...
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MAXIMUM RATINGS TABLE Symbol V Continuous High Voltage bridge pin, pin 22 Bridge V –V Floating supply voltage, pin 24−22 BOOT Bridge High side output voltage, pin 23 MU DRV V Low side output voltage, pin 18, ...
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ELECTRICAL CHARACTERISTICS (For typical values unless otherwise noted) Symbol COMMON TO BOTH CONTROLLERS SUPPLY SECTION I IC consumption, both PFC and LLC loaded in no load conditions CC4 (PFC is 65 kHz and ...
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ELECTRICAL CHARACTERISTICS (For typical values unless otherwise noted) Symbol POWER FACTOR CORRECTION REGULATION BLOCK V PFC Voltage reference PREF I Error Amplifier Current Capability EA G Error Amplifier Gain EA I Bias Current @ V = ...
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ELECTRICAL CHARACTERISTICS (For typical values unless otherwise noted) Symbol POWER FACTOR CORRECTION LINE BROWN−OUT DETECTION V Pull Down V Threshold LBO(PD) LBO t Pull Down V Time Limitation LBO(Pdlimit) LBO t Time Delay to Confirm that ...
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ELECTRICAL CHARACTERISTICS (For typical values unless otherwise noted) Symbol LLC CONTROL SECTION DRIVE OUTPUT T Output voltage rise−time @ Output voltage fall−time @ Source resistance LOH R Sink resistance LOL ...
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V CC(on) 10 CC(min) 8.5 8 −50 − TEMPERATURE (°C) Figure 6. V and V CC(on) CC(min) 100 −50 − TEMPERATURE (°C) Figure 8. I ...
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V off 2 1.5 1 −50 − TEMPERATURE (°C) Figure 12. V and V vs. Temperature on off 2.8 2.7 V OVP2 V OVP1 2.6 V PREF 2.5 2.4 −50 − ...
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TEMPERATURE (°C) Figure 18. V vs. Temperature CTRL(max) 260 250 240 230 220 210 200 190 −50 − TEMPERATURE (°C) Figure 20 vs. ...
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TEMPERATURE (°C) Figure 24. F vs. Temperature PSW 1.04 1.02 1 0.98 0.96 −50 − TEMPERATURE (°C) Figure 26. V vs. Temperature LBOT 18 ...
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TEMPERATURE (°C) Figure 30. F vs. Temperature Lsw 3.7 3.6 3.5 3.4 3.3 −50 − TEMPERATURE (°C) Figure 32. V vs. Temperature refRt 450 ...
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R 16 LOH, LOL, −50 − TEMPERATURE (°C) Figure 36. R and R LOH,MU Temperature 1.05 1.025 1 0.975 0.95 −50 − ...
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... Factor Correction (PFC) and LLC resonant control. These cores interact together and implement handshake functions in normal operating conditions but also when a fault appears. Based on the ON Semiconductor proprietary high−voltage technology, the LLC section can drive the high−side MOSFET of the LLC half−bridge without the need of a gate− ...
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... High−voltage drivers: capitalizing on ON Semiconductor technology, the LLC controller includes a high−voltage section allowing a direct connection to the high−voltage rail. The MOSFET leg can therefore be directly driven without using a gate−drive transformer. ...
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PFC Methodology The NCP1910 uses a proprietary PFC methodology particularly designed for CCM operation. The PFC methodology is described in this section. Figure 42. Inductor Current in CCM As shown in Figure 42, the inductor current ...
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Figure 43. PFC Duty Modulation and Timing Diagram The PFC modulation and timing diagram is shown in Figure 43. The MOSFET on time t 1 intersection of reference voltage V PREF relationship in Equation 4 is obtained. ...
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Figure 45. The Multiplier Voltage Pin Configuration The multiplier voltage V is generated according to M Equation LBO CTRL CTRL(min) Where: R ...
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Conversely goes below LBO and a 980 mV voltage source, V LBO(clamp) the LBO pin to maintain the pin level near 1 V. Then blanking delay activated during which ...
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V is the rms ac voltage to starts PFC operating. ♦ ac,on V the rms ac voltage for line brown−out ♦ ac,off detection. PFC Current Sense NCP1910 + GND ...
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PFC Reference Section The internal reference voltage (V PREF $2% accurate over the temperature range (the typical value is 2.5 V the reference used for the regulation of PREF PFC section. PFC Feedback and Compensation ...
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PFC Frequency Foldback NCP1910 implements frequency foldback feature on PFC section to improve the efficiency at light load. Thanks feed−forward feature, the output power is proportional in to the (V − The PFC frequency foldback ...
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PFC Power Boost As depicted in previous section, thanks to the V feed-forward, the power delivery is independent from input voltage. It brings benefit of good power factor and a direct control on the frequency foldback. However, in some special ...
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OTA is around 30 mA. Due to the “V block (VLD), when the V is below 95 extra 200 mA current source (I VLD raise V rapidly. Hence prevent ...
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PFC Soft−Start Refer to Figure 52 and 54. The device provides no PFC driver output when the V is lower than V CTRL V is pulled low by: CTRL • V Under−Voltage Lockout • Off signal from on/off ...
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PFC Abnormal The PFC abnormal is detected by sensing V When V stays lower than V CTRL CTRL(max) – 0.1 V, for more than t , PFC turns off first. After PFCabnormal t , LLC shuts ...
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The minimum switching frequency is given by the R resistor value. This frequency is reached if there is no feedback action and soft start period has already elapsed. 6 490 min F min • ...
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V REF R 3 BOadj PFC_FB 2 PGadj PGout PGI for supervisory Figure 58. The PG and BO Block Diagram for LLC LLC Fast Fault Input (CS/FF Pin) As shown in Figure 59, ...
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CS/FF + − V CS1 LLC Soft−Start (SS Pin) In resonant converter, a soft−start is needed to avoid suddenly applying the full current into the resonating circuit. NCP1910 reserves SS pin to fully discharge soft−start capacitor before re−start and in ...
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LLC High−Voltage Driver The NCP1910 includes a high−voltage driver allowing a direct connection to the upper side MOSFET of LLC converter. This device also incorporates an upper UVLO circuitry that makes sure enough gate voltage is available for the upper ...
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State ON TBD Under−Voltage LockOut (UVLO) CC The device incorporates an Under−Voltage Lockout block to prevent the circuit from operating when V order to ensure a proper operation. An UVLO comparator monitors V pin voltage to allow ...
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... To release from the latch−off mode, NCP1910 offers 3 ways: ORDERING INFORMATION Device Version NCP1910A65DWR2G 65 kHz − A NCP1910B65DWR2G 65 kHz − B †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. • Recycle V so that V ...
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... 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 ...