Datasheet FL7740 (ON Semiconductor)

link to page 13
DATA SHEET www.onsemi.com
Constant-Voltage Primary-Side-Regulation PWM Controller for Power
SOIC10
Factor Correction
CASE 751EE
FL7740
MARKING DIAGRAM Description
The FL7740 provides accurate CV regulation in the steady state with differentiated dynamic function to minimize overshoot and ZXYKK FL7740 undershoot of output voltage in line and load transient condition. MA Standby power is less than 0.3 W for smart lighting application and power factor is higher than 0.9 even at half load condition when enabling PF optimizer for wide output power scalability. Startup time is less than 0.2 sec with built−in high voltage startup Z = Plant code X = 1 digit year code circuit and output voltage quickly reaches to the target CV level by Y = 1 digit week code loop gain transition technique during startup. KK = 2 digit lot traceability code Various protections such as Overload, output diode short, sensing M = Package code resistor short, output short and output over voltage protection A = Product version guarantee high system reliability.
Features PIN CONNECTIONS
• Wide Universal Input Range (90 VAC ~ 305 VAC) • Precise CV Regulation in the Steady State: < ±3 % VDD 1 HV • CV Regulation in the load Transient: < ±10 % GND NC • Overshoot−Less Fast HV Start Up Time (< 0.2 s) GATE COMV • Low Standby Power CS BIAS • PF Higher than 0.9 at High−Line and Half load by PF Optimizer VS PF • Pulse−by−Pulse Current Limit (Top View) • Output Short Protection • Output Over Voltage Protection
ORDERING INFORMATION
• Output Diode Short Protection See detailed ordering and shipping information on page 13 of • Sensing Resistor Short & Open protection this data sheet. • Over Load Protection • These Devices are Pb−Free Devices
Typical Applications
• LED Lighting System • AC−DC Adapters, TVs, Monitors • Off Line Appliances Requiring Power Factor Correction © Semiconductor Components Industries, LLC, 2016
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Publication Order Number:
April, 2022 − Rev 5 FL7740/D