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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SSL8516T датащи(PDF) 24 Page - NXP Semiconductors |
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SSL8516T датащи(HTML) 24 Page - NXP Semiconductors |
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24 / 33 page  SSL8516T All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved. Product data sheet Rev. 1 — 5 May 2014 24 of 33 NXP Semiconductors SSL8516T Greenchip PFC and flyback controller Oscillator flyback fsw(fb)max maximum flyback switching frequency 110 130 150 kHz Vstart(red)f frequency reduction start voltage transfer from DCM/QR to FR mode 3.8 4 4.2 V fsw(fb)swon(PFC) PFC switch-on flyback switching frequency 70 73 76 kHz fsw(fb)swoff(PFC) PFC switch-off flyback switching frequency 50 53 56 kHz Ven(PFC)FBCTRL PFC enable voltage on pin FBCTRL override voltage 3.4 3.75 4.1 V fsw(fb)VCO VCO flyback switching frequency VFBCTRL = 2.8 V 4553 61kHz VFBCTRL = 0.77 V 16 20 24 kHz Vswoff(fb)FBCTRL flyback switch-off voltage on pin FBCTRL 0.4 0.54 0.68 V Peak current control flyback (FBCTRL pin) VFBCTRL voltage on pin FBCTRL for maximum flyback peak current 4.6 4.9 5.2 V Vto(FBCTRL) time-out voltage on pin FBCTRL enable voltage 5.3 5.5 5.7 V trip voltage 7.3 7.75 8.2 V IO(FBCTRL) output current on pin FBCTRL VFBCTRL =0V 0.75 0.6 0.45 mA VFBCTRL =4.5 V 0.3 0.24 0.18 mA Ito(FBCTRL) time-out current on pin FBCTRL VFBCTRL =6V 35 29 23 A Rint(FBCTRL) internal resistance on pin FBCTRL 9.8 13.2 16.5 k Valley switching flyback (HV pin) ( V/t) vrec(fb) flyback valley recognition voltage change with time [3] 75 - +75 V/ s td(vrec-swon) valley recognition to switch-on delay time [3] -75 -ns Soft-start flyback (FBSENSE pin) Istart(soft)fb flyback soft start current 75 60 45 A Vstart(soft)fb flyback soft start voltage enable voltage 0.5 0.55 0.6 V OverCurrent Protection (OCP) flyback (FBSENSE pin) Vsense(fb)max maximum flyback sense voltage V/t = 0 V/s 525 545 565 mV Vsense(fb)min minimum flyback sense voltage V/t = 0 V/s 221 232 243 mV Table 5. Characteristics …continued Tamb =25 C; VCC = 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into the IC; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit |
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