Datasheet FL7921R (ON Semiconductor)
| Hersteller | ON Semiconductor |
| Beschreibung | Integrated Critical-Mode PFC and Quasi-Resonant Current-Mode PWM Lighting Controller |
| Seiten / Seite | 21 / 1 — DATA SHEET. www.onsemi.com. SOIC−16, 150 mils. CASE 751BG−01. … |
| Dateiformat / Größe | PDF / 718 Kb |
| Dokumentensprache | Englisch |
DATA SHEET. www.onsemi.com. SOIC−16, 150 mils. CASE 751BG−01. Description. MARKING DIAGRAM. ORDERING INFORMATION. Features
Modelllinie für dieses Datenblatt
Textversion des Dokuments
link to page 19
DATA SHEET www.onsemi.com
Integrated Critical-Mode PFC and Quasi-Resonant Current-Mode PWM Lightning Controller
SOIC−16, 150 mils CASE 751BG−01
FL7921R
Description MARKING DIAGRAM
The highly integrated FL7921R combines a Power Factor Correction (PFC) controller and a Quasi−Resonant PWM controller. 16 Integration provides cost effect design and allows for fewer external components. ZXYTT For PFC, FL7921R uses a controlled on−time technique to provide a FL7921R regulated DC output voltage and to perform natural power factor TM correction. An innovative THD optimizer reduces input current distortion at zero−crossing duration to improve THD performance. The 1 PFC function is always on regardless of the PWM stage load condition FL7921RMA = Specific Device Code to ensure that high PF can be achieved at light load condition. Z = Plant Code For PWM, FL7921R provides several functions to enhance power X = 1−Digit Year Code system performance: valley detection, green−mode operation, high / Y = 1−Digit Week Code low line over−power compensation. Protection functions include TT = Die−Run Code secondary−side open−loop and over−current with auto−recovery T = Package Type (M = SOP) M = Manufacture Flow Code protection, external recovery triggering, adjustable over−temperature protection through the RT pin and external NTC resistor, internal over−temperature shutdown, VDD pin OVP, DET pin over−voltage for output OVP, and brown−in / out for AC input voltage UVP. All
ORDERING INFORMATION
protections are auto recovery mode except PWM current sense pin See detailed ordering and shipping information on page 19 of open protection. this data sheet. The FL7921R controller is available in a 16−pin small outline−package (SOP).
Features
Integrated PFC and Flyback Controller Critical−Mode PFC Controller Zero−Current Detection for PFC Stage Quasi−Resonant Operation for PWM Stage Internal Minimum tOFF 8 ms for QR PWM Stage Internal 10 ms Soft−Start for PWM Brownout Protection High / Low Line Over−Power Compensation Auto Recovery Over−Current Protection Auto Recovery Open−Loop Protection Auto Recovery Over−Temperature Protection Adjustable Over−Temperature with External NTC through the RT Pin Auto Recovery VDD Pin and Output Voltage OVP This is a Pb−Free Device
Applications
Medium to High Power LED Lighting Driver Application Semiconductor Components Industries, LLC, 2015
1
Publication Order Number:
December, 2022 − Rev. 3 FL7921R/D
DATA SHEET www.onsemi.com
Integrated Critical-Mode PFC and Quasi-Resonant Current-Mode PWM Lightning Controller
SOIC−16, 150 mils CASE 751BG−01
FL7921R
Description MARKING DIAGRAM
The highly integrated FL7921R combines a Power Factor Correction (PFC) controller and a Quasi−Resonant PWM controller. 16 Integration provides cost effect design and allows for fewer external components. ZXYTT For PFC, FL7921R uses a controlled on−time technique to provide a FL7921R regulated DC output voltage and to perform natural power factor TM correction. An innovative THD optimizer reduces input current distortion at zero−crossing duration to improve THD performance. The 1 PFC function is always on regardless of the PWM stage load condition FL7921RMA = Specific Device Code to ensure that high PF can be achieved at light load condition. Z = Plant Code For PWM, FL7921R provides several functions to enhance power X = 1−Digit Year Code system performance: valley detection, green−mode operation, high / Y = 1−Digit Week Code low line over−power compensation. Protection functions include TT = Die−Run Code secondary−side open−loop and over−current with auto−recovery T = Package Type (M = SOP) M = Manufacture Flow Code protection, external recovery triggering, adjustable over−temperature protection through the RT pin and external NTC resistor, internal over−temperature shutdown, VDD pin OVP, DET pin over−voltage for output OVP, and brown−in / out for AC input voltage UVP. All
ORDERING INFORMATION
protections are auto recovery mode except PWM current sense pin See detailed ordering and shipping information on page 19 of open protection. this data sheet. The FL7921R controller is available in a 16−pin small outline−package (SOP).
Features
Integrated PFC and Flyback Controller Critical−Mode PFC Controller Zero−Current Detection for PFC Stage Quasi−Resonant Operation for PWM Stage Internal Minimum tOFF 8 ms for QR PWM Stage Internal 10 ms Soft−Start for PWM Brownout Protection High / Low Line Over−Power Compensation Auto Recovery Over−Current Protection Auto Recovery Open−Loop Protection Auto Recovery Over−Temperature Protection Adjustable Over−Temperature with External NTC through the RT Pin Auto Recovery VDD Pin and Output Voltage OVP This is a Pb−Free Device
Applications
Medium to High Power LED Lighting Driver Application Semiconductor Components Industries, LLC, 2015
1
Publication Order Number:
December, 2022 − Rev. 3 FL7921R/D