NCP4390
NCP4390 is Advanced Secondary Side LLC Resonant Converter Controller manufactured by onsemi.
Features
- Secondary Side PFM Controller for LLC Resonant Converter with
Synchronous Rectifier Control
- Charge Current Control for Better Transient Response and Easy
Feedback Loop Design
- Adaptive Synchronous Rectification Control with Dual Edge
Tracking
- Closed Loop Soft- Start for Monotonic Rising Output
- Wide Operating Frequency (39 k Hz ~ 690 k Hz)
- Green Functions to Improve Light- Load Efficiency
- Symmetric PWM Control at Light- Load to Limit the Switching Frequency while Reducing Switching Losses
- Disabling SR at Light- Load Condition
- Protection Functions with Auto- Restart
- Over- Current Protection (OCP)
- Output Short Protection (OSP)
- NON Zero- Voltage Switching Prevention (NZS) by pensation Cutback (Frequency Shift)
- Power Limit by pensation Cutback (Frequency Shift)
- Overload Protection (OLP) with Programmable Shutdown Delay
Time
- Programmable Dead Times for Primary Side Switches and Secondary
Side Synchronous Rectifiers
- VDD Under- Voltage Lockout (UVLO)
- Wide Operating Temperature Range
- 40°C to +125°C
- This Device is Pb- Free, Halogen Free/BFR Free and is Ro HS pliant
Applications
- Automotive On Board Charger
- Intelligent 100 W- 2 k W+ Off- Line & Industrial Power Supplies
SOIC- 16 CASE 751B- 05
MARKING DIAGRAM
NCP4390 A L Y WW G
NCP4390 AWLYWWG
= Specific Device Code = Assembly Location = Wafer Lot = Year = Work Week = Pb- Free Package
PIN CONNECTIONS
5VB
PWMS
FMIN...